The General Data Protection Regulation (GDPR) is a new data privacy and security law in Europe that comes into force next year, but does GDPR apply to American companies?
As many U.S. companies have recently discovered, not only does GDPR apply to American companies, doing business within the EU will not be possible if companies fail to comply with the regulation.
How Does GDPR Apply to American Companies?
The main purpose of GDPR is to give EU citizens greater control over how their personal data is collected, protected and used. While the legislation applies to EU companies, it also applies to any company that chooses to do business in the EU. That includes any online business that own a website that is accessible by EU citizens, if that website collects user data. Since the definition of personal information has also been expanded to include online identifiers such as cookies, GDPR has implications for huge numbers of U.S businesses. To continue to do business in the EU, most companies will have to implement additional privacy protections and end-to-end data protection strategies.
A recent survey conducted by PricewaterhouseCoopers on large multinational companies in the United States shows efforts are already underway to ensure compliance with the EU regulation. More than half of surveyed firms said GDPR is now their main data protection priority, with 92% saying compliance with GDPR is a top priority this year. The cost of compliance is considerable. 77% of surveyed firms said they are planning to spend more than $1 million on GDPR compliance, with one of the main spending priorities being improving their information security defenses.
As PwC’s Jay Cline explained, non-compliance with GDPR is simply not an option. “Businesses that do not comply with GDPR face a potential 4% fine of global revenues, increasing the need to successfully navigate how to plan for and implement the necessary changes.”
Further information on GDPR can be viewed on this link: https://www.spamtitan.com/general-data-protection-regulation/
A law firm ransomware attack has resulted in business files being left encrypted and inaccessible for three months, causing considerable billing losses for the firm.
Why did the law firm not simply pay the ransom demand to regain access to their files? Well, they did. Unfortunately, the attackers took the money and did not supply viable keys to unlock the encrypted files. Instead, they had a much better idea. To issue another ransom demand to try to extort even more money from the law firm.
The law firm, Providence, RI- based Moses Afonso Ryan Ltd, was forced to negotiate with the attackers to gain access to its data. It took more than three months and ransomware payments of $25,000 to finally regain access to its files. However, the ransomware payment represented only a tiny proportion of the cost of the attack. During the three months that data were locked, the firm’s lawyers struggled to work.
Moses Afonso Ryan made a claim against its insurance policy for lost billings as a result of the attack; however, the insurer, Sentinel Insurance Co., has refused to pay the bill. The law firm claims to have lost $700,000 as a result of the attack in lost billings alone. The firm has recently filed a U.S. District Court lawsuit against its insurer claiming breach of contract and bad faith for denying the claim.
The law firm ransomware attack involved a single phishing email being opened by one of the firms’ lawyers. That email has so far cost the firm more than $725,000 and the losses will continue to rise.
Important lessons can be learned from this law firm ransomware attack. First, the importance of training all staff members on the risk of ransomware attacks and teaching security best practices to reduce the risk of attacks being successful.
Since phishing emails are now highly sophisticated and difficult to identify, technical solutions should be implemented to prevent emails from reaching employees’ inboxes. Endpoint protection systems can reduce the risk of ransomware being installed and can detect infections rapidly, limiting the damage caused.
All businesses should take care to segment their networks to ensure that a ransomware infection on a single computer does not result in an entire network being impacted.
It is also essential for backups to be performed regularly and for those backups to be tested to ensure data can be recovered. This law firm cyberattack clearly demonstrated that organizations cannot rely on attackers making good on their promise to unlock data if the ransom is paid.
There have been cases where the attackers have not been able to supply a functional key to unlock data, and numerous examples of attackers issuing further ransom demands in an attempt to extort even more money out of companies.
Hackers are continuing to attack healthcare organizations, but healthcare ransomware attacks are the biggest cause of security incidents, according to the NTT Security 2017 Global Threat Intelligence Report.
Healthcare ransomware attacks accounted for 50% of all security breaches reported by healthcare organizations between October 2015 and September 2016 and are the largest single cause of security breaches.
However, healthcare is far from the only sector to be targeted. Retail, government, and the business & professional services sector have also suffered many ransomware attacks during the same period. Those four sectors accounted for 77% of global ransomware attacks. The worst affected sector was business & professional services, with 28% of reported ransomware attacks, followed by the government (19%), healthcare (15%) and retail (15%).
NTT Security reports that phishing emails are the most common mechanism for ransomware delivery, being used in 73% of ransomware and malware attacks. Poor choices of password are also commonly exploited to gain access to networks and email accounts. NTT says just 25 passwords were used in 33% of all authentication attempts on its honeypots, while 76% of authentication attempts used a password known to have been implemented in the Mirai botnet.
Zero-day exploits tend to attract considerable media attention, but they are used in relatively few attacks. Web-based attacks have fallen but they still pose a significant threat. The most commonly attacked products were Microsoft Internet Explorer, Adobe Flash Player, and Microsoft Silverlight. Exploit kit activity has fallen throughout the year as cybercriminals have turned to phishing emails to spread malware and ransomware. There was a steady decline in exploit kit attacks throughout the year.
With phishing posing the highest risk, it is essential that organizations ensure they have adequate defenses in place. Phishing attacks are sophisticated and hard to distinguish from genuine emails. Security awareness training is important, but training alone will not prevent some attacks from being successful. It is also important to ensure that training is not just a one time exercise. Regular training sessions should be conducted, highlighting the latest tactics used by cybercriminals and recent threats.
The best form of defense against phishing attacks is to use anti-phishing technologies such as spam filters to prevent phishing emails from reaching end users. The more phishing emails that are blocked, the less reliance organizations place on end users being able to identify phishing emails. Solutions should also be implemented to block users from visiting phishing websites via hyperlinks sent via email.
Cyberattacks on educational institutions are occurring at an alarming rate. While the education sector has not been as heavily targeted as the financial services and healthcare in recent years, that is no longer the case. Cybercriminals and state-actors now have the education sector in their crosshairs.
Cybercriminals have realized that cyberattacks on educational institutions can be highly profitable, with this year seeing a sharp rise in attacks.
Schools, colleges and higher education institutions hold vast quantities of data that can be used for fraud and identity theft. As we have already seen this year, cyberattacks on educational institutions are now much more common. The first quarter of the year saw a rise in W-2 phishing attacks, with criminals managing to obtain the tax information of many thousands of staff members. Those data were used to file fraudulent tax returns. Student records can be used for identity theft and can be sold for big bucks on darknet marketplaces. Attacks aimed at obtaining the personal data of students have similarly increased.
Educational institutions also conduct extensive research. The past year has seen a sharp rise in espionage related cyberattacks on educational institutions. Criminals are also conducting attacks to gain access to bank accounts. This year, two major cyberattacks on educational organizations have resulted in bank transfers being made to criminals’ accounts. At the start of the year, a phishing attack on the Cleveland Metropolitan School District resulted in more than $100,000 being obtained by the attackers. Denver Public Schools was also attacked, with the attackers redirecting $40,000 in payroll funds to their own accounts.
The recently published Data Breach Investigation Report from Verizon clearly shows the new attack trend. Over the past year, there have been 455 incidents reported by educational institutions, 73 of which have resulted in the theft of data.
While many industries see cyberattacks conducted for financial reasons, in education, financial gain was only the motive behind 45% of cyberattacks. 43% of attacks involved espionage and 9% of attacks were conducted for fun. Out of all reported data breaches, 26% involved espionage. Last year the percentage was just 5%.
Attacks are coming from all angles – Internal attacks by students; attacks by cybercriminals looking to steal data, and state-sponsored actors looking to steal research. The latter accounted for more than half of data breaches in the past year.
The Verizon report indicates hacking is the biggest threat. 43% of breaches were due to hacks, although social attacks and malware were also common. Verizon reports that almost 44% of breaches involved social and around a third involved malware. Social attacks and malware have increased considerably over the course of the past year. The most common social attack was phishing via email.
As long cyberattacks on educational institutions remain beneficial or profitable, cyberattacks will continue. Educational institutions therefore need to take steps to improve their security posture. Since social attacks such as phishing are commonplace, and malware infections commonly occur via email, educational institutions need review their email defenses.
Password policies should be introduced to ensure strong passwords are set on email accounts and policies introduced to ensure passwords are regularly changed. Spam filtering solutions should be implemented and all staff and students should receive training on security awareness. Verizon suggests staff and students should be encouraged or rewarded for reporting phishing and pretexting attacks.
There was some good news in the latest Symantec Internet Security Threat Report. Exploit kit attacks have fallen dramatically, unfortunately however, ransomware attacks on businesses have sky rocketed.
Over the past 12 months, exploit kit attacks fell by 30%, but over the same period, ransomware attacks on businesses have increased by 36%.
Ransomware has proved popular with cybercriminals as attacks are easy and money can be made much more quickly. If an attacker succeeds in encrypting business data, a ransom demand is issued and payment is required in a few days. In most cases, the attackers get paid within a week.
Web-based attacks on the other hand typically take longer. Cybercriminals need to wait until employees visit a compromised website and download malware. The network must be explored to find sensitive data, data needs to be exfiltrated and a buyer needs to be found. It takes much longer in many cases for the attackers to get paid.
Furthermore, ransomware attacks are easier to pull off. With ransomware-as-a-service – Cerber ransomware for example – little technical skill is required to conduct a campaign. All the attackers need to do is to pay to rent the ransomware, set their own terms and distribute the malware via spam email. Many ransomware authors are even providing kits with instructions. The appeal of ransomware is clear. It is quick, easy and profitable to conduct attacks and money can be made very quickly.
Symantec says it has now detected 101 separate ransomware families whereas in 2015 the count stood at just 30. As soon as one variant is cracked and a decryptor released, there are many new variants released to take its place. Ransomware attacks on businesses will continue to be conducted and in all likelihood, with increasing frequency.
Fortunately, good data backup policies will ensure that businesses do not have to pay to unlock their data. Unfortunately, even if data can be recovered from backups, ransomware attacks can prove costly to resolve. Cybersecurity firms often need to be hired to conduct analyses of networks to ensure all traces of ransomware (and other malware) have been removed. Those firms must also check to make sure no backdoors have been installed.
Ransomware infections can see computers locked for several days causing considerable loss of revenue. Customer breach notifications may also need to be issued. A ransomware attack can result in considerable costs, even if no ransom is paid.
Since ransomware is primarily distributed via spam email, businesses need to ensure they have appropriate email defenses in place. An advanced spam filter with an anti-phishing component is essential, along with other endpoint protection systems.
The decline in web-based attacks is certainly good news, but it doesn’t mean the threat can be ignored. Last year there were 229,000 web-based attacks tracked by Symantec. This is a considerable decrease from the previous year, although web-based attacks are still a significant threat to businesses. The report indicates 9% of websites have critical bugs that could be easily exploited by cybercriminals allowing them to hijack the websites. Worryingly, Symantec reports that 76% of websites contain bugs that could potentially be exploited.
The Symantec Internet Security Threat Report shows data breaches have remained fairly constant over the past two years. In 2014, widely reported to be ‘the year of the data breach’, Symantec recorded 1,523 data breaches. The following year that fell to 1,211 breaches. Last year, there was little change, with 1209 breaches reported.
The halt in the rise in data breaches suggests organizations are getting better at protecting their networks and data. However, large data breaches are increasing. Last year there were 15 data breaches that involved the theft of more than 10 million records, up from 11 in 2014.
A Shoney’s Restaurants malware infection has resulted in the theft of customers’ payment card details. Hackers managed to install malware on the POS system used by dozens of Shoney’s restaurants
Shoney’s is a 70-year-old Nashville, Tennessee-based restaurant chain that operates approximately 150 restaurants across the Southern United States, Midwest and lower Atlantic region. The chain serves customers in 17 states, although only selected restaurants in Alabama, Arkansas, Georgia, Florida, Louisiana, Mississippi, Missouri, South Carolina, Tennessee and Virginia were affected. At least 37 restaurants were affected.
Financial institutions identified a trend in credit card fraud and were able to determine that all of the affected cardholders had visited a Shoney’s Restaurant. Best American Hospitality Corp., which manages and operates a number of Shoney’s establishments, was notified of a potential cyberattack and started an investigation. Kroll Cyber Security LLC was hired to conduct an investigation into the attack.
Kroll’s investigation revealed the malware enabled the attackers to steal cardholder names, credit card numbers, CVV codes, and expiry dates, although in some cases, cardholder names were not obtained. It is unclear how many individuals have been impacted, although any individual who visited one of the affected restaurants and paid by credit card has potentially had their information stolen. The malware was capable of reading data from the magnetic strips of payment cards as the information was routed through its computer system.
Access to the POS system is understood to have first been gained on December 27, 2016, although some restaurants were not infected until January 11. The Shoney’s Restaurants malware infection was contained on March 6, 2017, according to a press release issued by Best American Hospitality Corp.
The Shoney’s Restaurants malware attack is the latest is a slew of POS system breaches that have hit the hospitality sector hard. Earlier this year, the Arby’s restaurant chain was attacked and had credit card data stolen, while Wendy’s suffered a major credit card breach last year. Hotels have also been attacked, with more than 1,100 Intercontinental Hotel Group hotels discovered to have had malware installed that accessed its POS system.
Cyberattacks on the hospitality sector are to be expected. Hotels and restaurants are visited by tens of thousands of customers, and payment by credit card is common. Card details can be stolen and encoded onto magnetic strips on blank cards and used for fraudulent purchases. Each card number can allow criminals to steal hundreds, if not thousands of dollars.
All too often, data breaches occur due to poor security practices such as the failure to use strong passwords or failing to change default passwords. Other basic security failures that can open the door to attackers include failing to use web and email security products, not using two-factor authentication and not implementing security patches promptly. Businesses should also conduct regular vulnerability scans and penetration tests to ensure all of their systems are secure.
If you would like advice on web and email security protections that can prevent hackers from gaining access to your POS system and installing malware, contact the TitanHQ team today and find out how you can improve your resilience against malware and cyberattacks.
2017 was the year when Locky Ransomware first arrived on the scene, with the ransomware variant fast becoming the biggest ransomware threat. Locky infections rose rapidly following its release in February and continued to rise in the first half of the year. The ransomware variant was initially installed via exploit kits, although as exploit kit activity fell, the developers switched to spam email as the primary attack vector.
As 2016 progressed, Locky activity declined. While Locky infections continue, it is no longer the biggest ransomware threat. Locky now accounts for just 2% of infections. A new report from Malwarebytes has revealed that the biggest ransomware threat – by some distance – is Cerber ransomware.
Cerber ransomware is now behind 90% of all global ransomware infections, with those attacks performed using many different variants of the ransomware. Cerber has even surpassed TeslaCrypt; a previously highly prevalent ransomware variant that dominated attacks in 2015 and early 2016. At the start of 2017, Cerber’s ‘market share’ stood at 70%, although that increased to 90% by the end of Q3.
The secret of the success of Cerber lies not only in the sophistication of the ransomware, but how it is being used and distributed. Cerber ransomware has become the biggest ransomware threat because it is not only the authors that are using it to attack organizations. There is now an army of affiliates using the ransomware. Those affiliates do not need programming experience and neither much in the way of technical skill. Their role is simple. They are simply distributors who get a cut of the profits for any ransoms they manage to generate.
Ransom payments are likely with Cerber infections. There is no decryptor for the ransomware as no flaws have been discovered. Files locked by Cerber cannot be unlocked without the decryption keys, and only the attackers have access to those. The encryption used is of military-grade, says Malwarebytes. Further, a computer does not even need to be connected to the Internet in order for files to be encrypted. The latest variants also include a host of new defenses to prevent detection and analysis.
The primary attack vector used is email. Cerber is distributed in spam email, with infection occurring when a user opens an infected email attachment. That triggers the downloading of Cerber from the attacker’s Dropbox account.
With the new defenses put in place by its authors and no shortage of affiliates signing up to use the ransomware-as-a-service, Cerber looks set to remain the main ransomware threat throughout Q2. Attacks will continue and likely increase, and new variants will almost certainly be released.
All organizations can do is to improve their defenses against attack. Cybersecurity solutions should be employed to prevent spam emails from being delivered to end users. Staff should be trained how to identify malicious emails and not to open email attachments sent from unknown senders. Organizations should also use security tools to detect endpoint infections.
Since even with advanced security defenses infections are still possible, it is essential that all data are backed up and those backups tested to ensure they will allow encrypted data to be recovered.
In the United States, phishing attacks on schools and higher education institutions have soared in recent months, highlighting the need for improvements to be made to staff education programs and cybersecurity defenses.
Phishing refers to the practice of sending emails in an attempt to get the recipients to reveal sensitive information such as logins to email accounts, bank accounts, or other computer systems. Typically, a link is included in the email which will direct the user to a website where information must be entered. The sites, as well as the emails, contain information to make the request look genuine.
Phishing is nothing new. It has been around since the 1980’s, but the extent to which sensitive information is stored electronically and the number of transactions that are now conducted online has made attacks much more profitable for cybercriminals. Consequently, attacks have increased. The quality of phishing emails has also improved immeasurably. Phishing emails are now becoming much harder to identify, especially by non-technical members of staff.
No organization is immune to attack, but attackers are no longer concentrating on financial institutions and healthcare organizations. The education sector is now being extensively targeted. Phishing attacks on schools are being conducted far more frequently, and all too often those attacks are succeeding.
Such is the scale of the problem that the IRS recently issued a warning following a massive rise in phishing attacks on schools. Campaigns were being conducted by attackers looking for W-2 Form data of school employees. That information was then used to submit fraudulent tax returns in school employees’ names.
Recent Phishing Attacks on Schools, Colleges, and Universities
Westminster College is one of the latest educational institutions to report that an employee has fallen for the W-2 Form phishing scam, although it numbers in dozens of schools, colleges and universities that have been attacked this year.
Phishing emails are not only concerned with obtaining tax information. Recently, a phishing attack on Denver Public Schools gave the attackers the information they needed to make a fraudulent bank transfer. More than $40,000 intended to pay staff wages was transferred to the criminal’s account.
This week, news emerged of a listing on a darknet noticeboard from a hacker who had gained access to school email accounts, teacher’s gradebooks, and the personal information of thousands of students. That individual was looking for advice on what to do with the data and access in order to make money.
Washington University School of Medicine was targeted in a phishing attack that saw the attackers gain access to patient health information. More than 80,000 patients potentially had their health information stolen as a result of that attack.
Last week, news emerged of an attempted phishing attack on Minnesota schools, with 335 state school districts and around 170 charter schools potentially attacked. In that case, the phishing attack was identified before any information was released. The attack involved an email that appeared to have been sent from the Education Commissioner. The attackers were trying to gain access to financial information.
How to Improve Defenses Against Phishing Attacks
Fortunately, there are a number of technological controls that can be implemented cheaply to reduce the risk of phishing attacks on schools being successful.
An advanced spam filtering solution with a powerful anti-phishing component is now essential. A spam filter looks for the common spam and phishing signatures and ensures suspect messages are quarantined and not delivered to end users.
It must be assumed that occasionally, even with a spam filter, phishing emails may occasionally be delivered. To prevent employees from visiting phishing websites and revealing their information, a web filtering solution can be used. Web filters can be configured to block end users from visiting websites that are known to be used for phishing. As an additional benefit, web filters can stop individuals from accessing websites known to contain malware or host illegal or undesirable material – pornography for instance.
Those solutions should be accompanied by training for all staff members on the risk from phishing and the common identifiers that can help staff spot a phishing email. Schools should also implement policies for reporting threats to the organization’s IT department. Fast reporting can limit the harm caused and prevent other staff members from responding.
IT departments should also have policies in place to ensure thwarted attacks are reported to law enforcement. Warnings should also be sent to other school districts following an attack to allow them to take action to protect themselves against similar attacks.
Any school or higher educational institution that fails to implement appropriate defenses against phishing attacks will be at a high risk of a phishing attack being successful. Not only do phishing attacks place employees at risk of fraud, they can prove incredibly costly for schools to mitigate. With budgets already tight, most schools can simply not afford to cover those costs.
If you would like further information on the range of cybersecurity protections that can be put in place to prevent phishing attacks on schools and other educational institutions, call TitanHQ today for an informal chat.
A phishing attack on a HIPAA-covered entity has resulted in a $400,000 penalty for non-compliance with HIPAA Rules. This is not the first time a phishing attack has attracted a penalty from OCR for non-compliance.
The failure to prevent phishing attacks does not necessarily warrant a HIPAA penalty, but failing to implement sufficient protections to prevent attacks could land HIPAA-covered entities in hot water.
HIPAA Compliance and Phishing
The U.S. Department of Health and Human Services’ Office for Civil Rights is tasked with enforcing Health Insurance Portability and Accountability Act Rules. While OCR conducts audits of covered entities to identify aspects of HIPAA Rules that are proving problematic for covered entities, to date, no financial penalties have been issued as a result of HIPAA violations discovered during compliance audits. The same is certainly not the case when it comes to investigations of data breaches.
OCR investigates each and every data breach that impacts more than 500 individuals. Those investigations often result in the discovery of violations of HIPAA Rules. Any HIPAA-covered entity that experiences a phishing attack that results in the exposure of patients’ or health plan members’ protected health information could have historic HIPAA violations uncovered. A single phishing attack that is not thwarted could therefore end up in a considerable fine for non-compliance.
What HIPAA Rules cover phishing? While there is no specific mention of phishing in HIPAA, phishing is a threat to the confidentiality, integrity, and availability of ePHI and is covered under the administrative requirements of the HIPAA Security Rule. HIPAA-covered entities are required to provide ongoing, appropriate training to staff members. §164.308.(a).(5).(i) requires security awareness training to be provided, and while these are addressable requirements, they cannot be ignored.
These administrative requirements include the issuing of security reminders, protection from malicious software, password management and login monitoring. Employees should also be taught how to identify potential phishing emails and told about the correct response when such an email is received.
The HIPAA Security Rule also requires technical safeguards to be implemented to protect against threats to ePHI. Reasonable and appropriate security measures should be employed to protect ePHI. Since ePHI is often available through email accounts, a reasonable and appropriate security measure would be to employ a spam filtering solution with an anti-phishing component.
Given the frequency of attacks on healthcare providers, and the extent to which phishing is involved in cytberattacks – PhishMe reports 91% of cyberattacks start with a phishing email – a spam filtering solution can be classed as an essential security control.
The risk from phishing should be highlighted during a risk analysis: A required element of the HIPAA Security Rule. A risk analysis should identify risks and vulnerabilities that could potentially result in ePHI being exposed or stolen. Those risks must then be addressed as part of a covered entity’s security management process.
HIPAA Penalties for Phishing Attacks
OCR has recently agreed to a settlement with Metro Community Provider Network (MCPN), a federally-qualified health center (FQHC) based in Denver, Colorado following a phishing attack that occurred in December 2011. The attack allowed the attacker to gain access to the organization’s email accounts after employees responded by providing their credentials. The ePHI of 3,200 individuals was contained in those email accounts.
The fine was not exactly for failing to prevent the attack, but for not doing enough to manage security risks. MCPN had failed to conduct a risk analysis prior to the attack taking place and had not implemented security measures sufficient to reduce risks and vulnerabilities to a reasonable and appropriate level. OCR settled with MCPN for $400,000.
In 2015, another covered entity ended up settling with OCR to resolve violations of HIPAA Rules following a phishing attack. University of Washington Medicine paid OCR $750,000 following the exposure of 90,000 individual’s ePHI. In that case, the phishing attack allowed attackers to install malware. OCR Director at the time, Jocelyn Samuels, pointed out “An effective risk analysis is one that is comprehensive in scope and is conducted across the organization to sufficiently address the risks and vulnerabilities to patient data.” She also said, “All too often we see covered entities with a limited risk analysis that focuses on a specific system such as the electronic medical records or that fails to provide appropriate oversight and accountability for all parts of the enterprise.”
Covered entities are not expected to prevent all phishing attacks, but they must ensure the risk of phishing has been identified and measures put in place to prevent phishing attacks from resulting in the exposure of theft of ePHI. If not, a HIPAA fine may be issued.
Microsoft has finally patched a zero-day vulnerability in Microsoft Word that has been exploited by cybercriminals for months. Recently, the vulnerability has been exploited by the gang behind the Dridex banking Trojan.
The remote code execution vulnerability (CVE-2017-0199) affects the Windows Object Linking and Embedding (OLE) application programming interface. The vulnerability is a logic flaw rather than a programming error, which makes defending against attacks difficult.
The bug affects RTF files. The spam email campaigns use RTF files containing an embedded OLE2Link object, which downloads an HTA (HTML Application) file containing malicious code when the document is opened. No user interaction other than opening the file is required to infect the end user’s device.
There is some debate as to how long the vulnerability has been actively exploited in the wild. Attacks may have been occurring as early as November 2016 according to SophosLabs, although certainly since the start of 2017. Over the past two months, the vulnerability has been extensively exploited to deliver the Dridex banking Trojan.
The zero-day vulnerability in Microsoft Word has been exploited for espionage purposes in Russian speaking countries, while FireEye observed the exploit being used to distribute Latentbot malware. Latentbot is an information stealer with the ability to corrupt hard drives.
Many security companies have been tracking the vulnerability, although it was McAfee that announced the existence of the actively exploited flaw on Friday last week. The flaw exists in virtually all Microsoft Word versions and does not require macros to be enabled in order for malicious code to run.
Employees are advised never to enable macros on documents unless they are 100% certain that a document is legitimate; however, this zero-day exploit does not rely on macros. Simply opening the Word document on an unpatched Office installation is likely to result in infection.
This makes the vulnerability particularly dangerous. Any end user that opens a specially crafted Word document would automatically run the code which would see the Dridex Trojan (or another malware) downloaded. One protection that can prevent the malicious code from running is to enable Protected View mode. However, the code will run when Protected View is turned off.
The malicious emails sent out in at least one campaign have the subject line “scanned data” with the RFT file attachments containing the word ‘scan’ followed by a random string of numbers, according to Proofpoint.
To protect against this exploit, the patches for both Office and Windows that were released by Microsoft on Tuesday April 11, 2017 should be applied. However, in order to apply the security update, Service Pack 2 for Office 2010 must be installed.
If it is not possible to apply the Microsoft updates immediately, you can configure your spam filter to block RTF files or add RTF files to the list of documents to block in the Microsoft Office Trust Center.
Yesterday, the U.S. Department of Justice announced that one of the leading email spammers has been arrested as part of an operation to disrupt and dismantle the infamous Kelihos botnet.
The Kelihos botnet is a network of tens of thousands of computers that are used to launch massive spamming campaigns comprising millions of emails. Those spam emails are used for a variety of nefarious purposes including the distribution of ransomware and malware. The botnet has been extensively used to spread fake antivirus software and spread credential-stealing malware.
Computers are added to the Kelihos botnet using malware. Once installed, Kelihos malware runs silently and users are unaware that their computers have been hijacked. The Kelihos botnet can be quickly weaponized and used for a variety of malicious purposes. The botnet has previously been used for spamming campaigns that artificially inflate stock prices, promote counterfeit drugs and recruit people to fraudulent work-at-home schemes.
Pyotr Levashov is believed to operate the botnet in addition to conducting a wide range of cybercriminal activities out of Russia. In what turned out to be an unwise move, Levashov left the relative safety of his home country and travelled to Barcelona, Spain on holiday. Levashov was arrested on Sunday, April 9 by Spanish authorities acting on a U.S. issued international arrest warrant.
Levashov is suspected of playing a role in the alleged Russian interference in the U.S. presidential election in 2016, although Levashov is best known for his spamming activities, click fraud and DDoS attacks.
Levashov, or Peter Severa as he is otherwise known, is heavily involved in distributing virus spamming software and is believed to have written numerous viruses and Trojans. Spamhaus lists Levashov in seventh place on the list of the 10 worst spammers.
Levashov is believed to have run multiple operations that connected virus developers with spamming networks, and is suspected of running the Kelihos botnet, the Waledac botnet – which was taken down in 2010 – and the Storm botnet. Levashov was indicted for his role in the latter in 2009, although he managed to avoid extradition to the United States. At the time, Storm was the biggest spamming botnet in operation and was used to send millions of emails every day. Levashov also moderates many spamming forums and is well known in underground circles. Levashov is believed to have been extensively involved in spamming and other cybercriminal activities for the past 20 years; although to date he has avoided prosecution.
A statement released by the U.S. Department of Justice reads, “The operation announced today targeted an ongoing international scheme that was distributing hundreds of millions of fraudulent e-mails per year, intercepting the credentials to online and financial accounts belonging to thousands of Americans, and spreading ransomware throughout our networks.”
The DOJ operation also involved the takedown of domains associated with the Kelihos botnet starting on April 8, 2017. The DOJ says shutting down those domains was “an extraordinary task.”
While it is certainly good news that such a high profile and prolific spammer has been arrested and the Kelihos botnet has been severely disrupted, other spammers are likely to soon take Levashov’s place. Vitali Kremez, director of research at Flashpoint said his firm had seen chatter on underground forums indicating other major spammers are responding to the news of the arrest by taking acting to secure their own operations. There may be a blip in email spam volume, but that blip is only likely to be temporary.
The importance of anti-phishing training for staff members has been highlighted this week following a major incident in Denver. A targeted Denver Public Schools phishing scam saw at least 30 members of staff divulge their usernames and passwords to scammers.
The Denver Public Schools phishing scam enabled attackers to gain access to accounts, which allowed information to be gained to access to the school district’s payroll system. The attackers changed the routing numbers for payments to employees and directed the payments to their own accounts. More than $40,000 that had been set aside to pay staff wages was stolen.
Staff members have now been paid and efforts are continuing to recover the stolen funds. At least 14 direct deposits were made and have not been recovered. The school district is hoping that the payments will be covered by an insurance policy. The incident has been reported to the Colorado Bureau of Investigation and the incident is being investigated to try to identify the individuals behind the scam.
The Denver Public Schools phishing scam was highly convincing; however, questions will be asked about how so many employees fell for the scam and disclosed their login credentials. The school district has confirmed that efforts were made to educate its employees on the risk of phishing prior to the attack taking place.
Denver Public Schools employs 13,991 members of staff. The response percentage was therefore very low, but it can only take one individual to respond to such a scam for serious financial harm to be caused.
A Bad Year for Phishing Attacks on Schools
Phishing attacks on schools are commonplace, but this year has seen attacks soar. For instance, in 2017, there have been 141 reported W-2 phishing scams, 33 of which affected schools, colleges and universities.
While phishing scams used to be fairly easy to detect, now they are becoming much more sophisticated. It is now not easy to tell a phishing email from a real email request. The attackers use spoofing techniques to make the emails appear as if they have been sent from within the organization. Genuine email accounts may even be compromised and used for phishing attacks. Last month, the Digital Citizens Alliance reported finding millions of .edu email addresses listed for sale on the dark web. Those email addresses are often used for phishing scams as they are trusted.
Phishing emails are often free from the spelling and grammatical errors that were commonly seen in spam emails in years gone by. The emails often contain lifted branding, images and formatting, which makes them highly convincing. The requests for information may also seem reasonable.
How to Prevent Phishing Attacks
Providing anti-phishing training for staff is now an essential cybersecurity defense; however, it is also important to ensure that training has had the desired effect and has been taken onboard. Schools should therefore conduct dummy phishing exercises to identify the effectiveness of their training programs. Research has shown that with practice, employees get much better at identifying phishing scams.
Technological solutions should also be implemented to prevent spam emails from reaching end users’ inboxes. Advanced anti-spam solutions such as SpamTitan do not rely on blacklists to identify emails as spam. Blacklists are used along with a host of front end controls and emails are subjected to Bayesian analyses to identify common spam signatures. Rules can be set to reduce the risk of email spoofing.
If you are interested in finding out more about the range of technological solutions that can be employed to reduce the risk of phishing attacks, contact the TitanHQ team today.
A recent report from IBM X-Force has highlighted the massive growth in tax-related email spam this year. Between December 2016 and February 2017, tax-related email spam increased by an incredible 6,000%.
A rise in tax-related email spam is to be expected during tax season. It is the time of year when tax returns are submitted and criminals can make substantial profits. If tax information is stolen and a fraudulent tax return is submitted prior to the individual submitting their own return, thousands of dollars in refunds can be obtained. With such high returns from each set of tax information, it is no surprise that tax-related scams are so prevalent.
This year, has seen many different scams detected, although one of the most successful is the W-2 phishing scam. The scam involves a tax fraudster impersonating the CEO, CFO or another executive, and emailing a request for W-2 Forms to members of the payroll department.
As we have seen on numerous occasions this year, the emailed lists can contain thousands of employees’ sensitive information. Usually, every employee that has taxable earnings for the previous fiscal year. To date, there have been 141 reports of successful scams. The largest breach was reported by American Senior Communities. The tax information of more than 17,000 members of staff were emailed to scammers.
The IRS said it was one of the most dangerous email phishing scams seen in recent years. It’s too early to tell how much in fraudulent refunds have been paid out by the IRS, although last year the total was around $5.8 billion. This year that total is expected to rise.
W-2 form phishing scams may be the most common type of tax-related email scams seen this year, but there are many. Most are delivered by email, although website phishing attacks have also been highly prevalent.
Cybercriminals have been impersonating tax software companies and have been sending out fake marketing emails encouraging consumers to visit spoofed websites. They are then relieved of their personal information. Information gathered via the online forms enable fraudsters to steal identities and file fraudulent tax returns in the victims’ names.
Tax season is also a time when malware infections spike. Tax-related email spam is sent with malicious email attachments. Opening those attachments results in malware or ransomware being downloaded to the victims’ computers.
Cybercriminals use a wide variety of techniques to steal credentials. Social engineering techniques are used to fool email recipients into believing requests for information are genuine. Attackers use typosquating and URL hijacking to make their malicious websites appear legitimate. The phishing templates used by some cybercriminals are so convincing it is almost impossible to distinguish them from genuine emails. The correct branding is used, links are masked, and support is even offered for uploading tax-related documentation. In many cases, the emails contain the IRS logo and victims are fooled into supplying their credentials. The scams are often successful, even though the IRS does not initiate contact with taxpayers via email.
To protect against attacks and fraud, consumers can set an IRS IP PIN on their accounts. That pin number must be used to file a tax return. Provided the PIN is not disclosed, individuals will be protected from fraudulent tax filings.
Many Americans leave filing their tax returns to the last minute; however, this year the scammers started sending tax-related email spam early. The late filing of tax returns gives cybercriminals plenty of time to submit fake returns. Tax returns should be filed as soon as a W-2 Form is received to reduce the risk of becoming a victim of fraud.
Businesses can protect themselves against W-2 phishing scams by implementing an advanced spam filtering solution to block spam emails. However, staff should also receive anti-phishing training and policies should be implemented that require any request for W-2 Forms to be verified with the sender of the email by telephone.
Businesses are still being targeted by scammers so they should be on their guard. They should also ensure that they are prepared well in advance for the tsunami of tax-related email spam that will start to arrive from December 2017.
The Inland Revenue Service has issued a new warning to tax professionals about a new IRS e-Services phishing scam.
With the tax return deadline fast approaching it is the last chance for the fraudsters to steal identities and file fraudulent tax returns. The past few days has seen a surge in phishing attacks on tax professionals.
The purpose of the IRS e-Services phishing scam is to obtain tax professionals’ e-Services usernames and passwords. The emails use a variety of subject lines that have been crafted to attract attention and ensure the emails are opened.
The emails claim to have been sent by the IRS about issues with the user’s e-Services account. The emails warn that the user’s e-Services account has been closed, suspended or blocked. In order to reactivate the account or prevent its closure, the email recipient is required to login to their account.
A link is supplied in the email that enables the recipient to take the required action. Clicking on the link will direct the user to a login page that closely resembles the IRS e-Services portal. Entering in a username and password into the login page will see the details captured by the attackers.
In response to the high volume of phishing attacks on tax professionals, the IRS has been improving account security in recent weeks. The IRS has been asking tax professionals to revalidate their accounts to prevent delays when accessing their e-Services accounts. The attackers appear to be taking advantage and piggybacking on those recent communications.
The IRS warns all tax professionals that if for any reason their e-Services account has been closed, they should contact the e-Services Help Desk to reactivate their account, but never to click on any links contained in emails. While links to malicious websites are used for this scam, users should also be wary about any attachments sent in e-Services emails.
This tax season has seen a major increase in tax-related email scams, most notably a massive rise in W-2 Form phishing scams. At least 140 successful W-2 Form phishing attacks have already been announced, although with two weeks left of tax season that figure is certain to rise. K12 schools, colleges and other higher education institutions have been extensively targeted this year, as has the healthcare industry. Some of the phishing scams have resulted in thousands of employees’ tax details being obtained by fraudsters.
The last few days before the April 18 deadline for submitting tax returns is likely to see many more phishing attacks performed. All businesses should therefore be on their guard and should exercise extreme caution.
Today is World Backup Day: An annual event that started in 2010 to raise awareness of the importance of backing up data.
Backups are used to recover data in the event of disaster; however, having a backup of data does not necessarily mean data can be recovered. Restoring files from backups is not always effective. Backups can be corrupted and the restoration of files can fail.
While World Backup Day raises awareness of the importance of backing up data, we would like to emphasize the importance of testing backups and reviewing backup strategies to ensure they are effective. Don’t wait until disaster strikes to ensure your strategies are effective and files can be recovered. By then it will be too late.
How Common is Data Loss?
Recent research conducted by Kroll OnTrack has revealed an alarming number of companies have experienced data loss, even when backups of data were performed. Kroll polled 1,000 companies in the United States, Europe, and Australia and discovered that a third of companies had experienced a data loss incident.
Out of those companies, 35% did not have a current backup and experienced data loss as a direct result. Two thirds (67%) of organizations were able to recover the majority of their data from backup files, while 13% said they could recover up to three quarters of their data. Corrupted backup files were cited as the reason for data loss by 12% of companies, but a quarter of companies that lost data said their backup system did not work as it should.
A quarter of companies that backed up their data said they did not test those backups to make sure files could be recovered. A quarter said they tested backups once a week to ensure data were recoverable, and 30% tested their backups on a monthly basis.
Backups are an organization’s insurance against data loss. Just as an insurance policy should not be taken out until the fine print has been read, backups should not be trusted until they have been tested.
The World Backup Day pledge is “I solemnly swear to backup my important documents and precious memories on March 31st.” However, to that we add, “I also swear to test my backups to make sure my important documents can be recovered.”
Ransomware – A Major Data Loss Risk for All Businesses
The past 12 months have clearly highlighted the importance of backing up data. Ransomware attacks soared in 2016. Ransomware is a form of malware that locks files with powerful encryption. A ransom demand is then issued to supply the key to unlock the data. Without access to that key, data will remain locked forever if a backup of data does not exisit.
The only way to unlock files is to pay a sizable ransom payment. That payment could be tens of thousands of dollars. In February, last year, Hollywood Presbyterian Medical Center was forced to pay a ransom of $17,000 to obtain the key to unlock ransomware-encrypted data after it was discovered files could not be recovered from backups.
Ransomware has fast become one of the biggest cybersecurity threats. Research conducted by Kaspersky Lab revealed the number of ransomware variants increased 11-fold between Q1 and Q3, 2016, by which time 32,091 different ransomware variants had been detected. By Q3 2016, a business was being attacked with ransomware every 40 seconds and 42% of small to medium sized businesses had been attacked with ransomware. 32% of businesses were forced to pay the ransom in order to recover their data.
While ransomware attacks have soared, the malicious software is only the third main cause of data loss. Hardware failure poses the biggest risk followed by the loss or theft of devices. Software errors and data loss due to system upgrades round off the top five list.
A Good Data Backup Strategy
Backup systems can be used to continuously backup data, but at the very least a daily backup should be made. Those backups should be tested at least once a week to ensure data can be successfully recovered.
To prevent data loss and maximize the probability of data recovery, organizations should use the 3-2-1 approach. Each organization should ensure they have three copies of data. The original and two backups. Those backups should be stored on two different media and one of those copies should be stored off site. The easiest option to satisfy those requirements is to have a physical copy on a storage device and a backup in the cloud. Since ransomware can encrypt data on network drives and connected storage devices, a local drive should be disconnected after the backup has been made.
Take out some time this World Backup Day to test your backups and review your backup strategies and ensure that you will be able to recover your data if disaster strikes.
The 2017 IBM X-Force Threat Intelligence Index has been released this week. The report provides an insight into the main cybersecurity threats faced by all industries and major cyberattack trends, data breaches and security incidents experienced by U.S. organizations in 2016.
Last year’s IBM X-Force Threat Intelligence Index showed healthcare was the industry most heavily targeted by cybercriminals. However, the 2017 IBM X-Force Threat Intelligence Index shows cybercriminals changed their focus in 2016. Last year, the financial services was hit the hardest. The healthcare dropped down to fifth place.
The healthcare industry did not suffer mega data breaches of the same scale as 2015 – which saw a 78.8 million-record cyberattack on Anthem Inc., and 10 million record+ data breaches at Premera Blue Cross and Excellus BlueCross BlueShield. However, there were security breaches aplenty. 2016 was the worst ever year for healthcare industry breaches, with more incidents reported than any other year in history.
Those breaches resulted in far fewer records being exposed or stolen. The 2017 IBM X-Force Threat Intelligence Index indicates there was an 88% drop in exposed or stolen healthcare records in 2016 compared to the previous year. Around 12 million healthcare records were exposed or stolen in 2016.
The 2017 IBM X-Force Threat Intelligence Index also shows that there was a shift in the nature of attacks, with cybercriminals targeting unstructured data rather than structured data. Data breaches involving email archives, intellectual property, and business documents all rose in 2016.
The healthcare industry may not have seen so many records exposed, but that was certainly not the case across all industry sectors. 2016 was a very bad year for cyberattacks. In 2015, around 600 million records were exposed or stolen. In 2016 the total jumped to an incredible 4 million records, helped in no small part by the 1.5 billion record breach at Yahoo and the discovery of massive data breaches at LinkedIn, MySpace, and Dropbox. It is therefore no surprise that IBM called 2016 The Year of the Mega Data Breach.
Top of the list of attacked industries in 2016 was financial services. Both the financial services and healthcare sectors saw a fall in attacks by outsiders, but attacks by malicious insiders and inadvertent actors increased in both industry sectors.
In the financial services, 5% of attacks involved malicious insiders and 53% involved inadvertent actors. In healthcare, 25% of attacks involved malicious insiders and 46% involved inadvertent actors. The financial services saw 42% of attacks conducted by outsiders. Healthcare cyberattacks by outsiders accounted for 29% of the annual total.
According to the 2017 IBM X-Force Threat Intelligence Index, the second most targeted industry was information and communications, followed by manufacturing and retail. All three industries saw increases in attacks by outsiders, which accounted for the vast majority of attacks. 96% of attacks on information and communications were by outsiders, with 91% apiece for manufacturing and retail.
The financial services sector saw a substantial rise in SQLi and OS CMDi attacks in 2016 – The most common attack method for the industry. The main attack method on the information and communications sector involved exploitation of vulnerabilities allowing attackers to trigger buffer overflow conditions. The main attack method on the manufacturing, retail and healthcare industries was also SQLi and OS CMDi attacks, which accounted for 71% of manufacturing industry cyberattacks, 50% of retail cyberattacks, and 48% of healthcare cyberattacks.
The 2017 IBM X-Force Threat Intelligence Index indicates cybercriminals favored older attack methods in 2016 such as ransomware, malware toolkits, and command injection to gain access to valuable data and resources.
Ransomware was big news in 2016. Many cybercriminals turned to ransomware as a quick and easy source of income. Figures from the FBI indicate $209 million in ransom payments were made in the first three months of 2016 alone.
Malware was also extensively used in attacks, with Android malware and banking Trojans big in 2016. Not all attacks targeted organizations for their data. DDoS attacks increased, both in frequency and severity. While attacks of 300+ Mbps were unusual in 2015, they became the norm in 2016. One attack in excess of 1 Tbps was reported.
While 2015 saw exploit kits extensively used to infect endpoints with malware, in 2016 spam email was favored. Spam was a primary attack tool of cybercriminals, especially in the second half of the year. While the first half of the year saw spam email volume remain steady, the 2017 IBM X-Force Threat Intelligence Index indicates there was a significant increase in spam volume in the second half of the year and a massive rise in the number of malicious email attachments.
The 2017 IBM X-Force Threat Intelligence Index shows the vast majority of malicious attachments were ransomware or ransomware downloaders, which accounted for 85% of malicious email attachments.
The increase in the use of spam email as an attack vector shows how important it is for organizations to improve their defenses against email attacks. An advanced spam filter is essential as is training of employees on security best practices and phishing attack prevention.
The Digital Citizens Alliance (DCA) has published new research showing there has been a massive rise in the theft of university email credentials and a massive rise in the sale of email credentials on darknet marketplaces.
This year’s study revealed the theft of university email credentials has grown significantly in the past 12 months. The report shows 13,930,176 stolen email credentials have been discovered to have been listed for sale. This time last year when the darknet was last scraped for stolen credentials there were around 2.8 million stolen credentials listed for sale. The year before that the figure stood at 2.2 million.
While the 13.9 million figure includes email credentials that were stolen over the past 8 years, 76% of those stolen credentials were discovered in the past 12 months.
When the researchers combined all types of credentials from multiple sectors they discovered there had been a 547% increase in credentials finding their way onto darknet marketplaces over the past three years.
The fivefold increase in the theft of university email credentials in a single year is a massive spike, which has been attributed to major data breaches at third party websites rather than cyberattacks on universities. The researchers say the massive 1-billion record data breach at Yahoo, the huge breach at LinkedIn and other large-scale cyberattacks on Dropbox, Weebly, MySpace and others are to blame.
The email credentials of university staff and students are being sold on underground marketplaces for between $3.50 to $10 each. While many actors had listed the email credentials for sale, some individuals were trading credentials and others were offering the stolen credentials for free.
The study only looked at theft of university email credentials at the top 300 higher education institutions. Smaller universities were excluded from the study. The stolen credentials were sorted into different higher education institutions to determine which were the worst affected. The universities with the highest numbers of stolen credentials were found to be:
- University of Michigan – 122,556
- Pennsylvania State University – 119,350
- University of Minnesota – 117,604
- Michigan State – 115,973
- Ohio State – 114,032
- University of Illinois (Urbana-Champaign) – 99,375
- New York University – 91,372
- University of Florida – 87,310
- Virginia Polytechnic Institute and State University – 82,359
- Harvard University – 80,100
The researchers were unable to determine why mid-west universities were the worst affected, although they hypothesized that it may be simply due to the size of the universities and the number of students, staff members, and alumni for those universities.
The researchers also looked at the size of the university and compared this to the number of stolen email credentials to gain a better understanding of demand for email addresses from specific universities and to ‘level the playing field’. Some universities appeared in the top ten of both lists, while smaller but more prestigious universities shot up the rankings. When ordered by the ratio of stolen email accounts to the total number of enrolled students and staff the top ten list changed to:
- Massachusetts Institute of Technology
- Carnegie-Mellon University
- Cornell University
- Baylor University
- Virginia Polytechnic Institute and State University
- Pennsylvania State University
- University of Michigan
- Kent State University
- Bowling Green State University
It is easy to see why the theft of university email credentials is such a problem. Edu email addresses are valuable to cybercriminals. They can be used in spear phishing and phishing campaigns but they also allow the users to obtain student discounts with retailers or when purchasing items such as software. Microsoft for instance offers a discount for students purchasing its Office products. The discounts can be considerable.
University email addresses are also highly valuable due to the data contained in those accounts. Information in the accounts can be mined and a huge amount of information can be gathered, from medical records to ID numbers and passwords to the weekends when students are likely to be away.
While email addresses and passwords were discovered, the researchers were unable to tell if the passwords were real and current and could be used to gain access to the accounts. The researchers also found that some of the email addresses appeared to have been spoofed or were incorrect accounts. While these posed less of a threat, the credentials were still of value to cybercriminals.
Phishing attacks do not need correct email addresses to be successfully used. Providing the correct format for emails is used, the email addresses can add credibility to phishing campaigns.
Adam Benson, Executive Director of the DCA said “Higher Education Institutions have deployed resources and talent to make university communities safer, but highly-skilled and opportunistic cyber criminals make it a challenge to protect large groups of highly-desirable digital targets.”
“We shared this information from cybersecurity researchers to create more awareness of just what kinds of things threat actors are capable of doing with an .edu account.” Said Benton.
While large scale third party data breaches were partly to blame, cyberattacks on universities still occur. To prevent theft of university email credentials the researchers suggest cybersecurity programs need to be conducted and awareness needs to be raised on the importance of using strong passwords.
Training should be provided to make sure staff and students are aware of the techniques used by criminals such as phishing. They should also be warned of the risk of clicking on links sent in emails. The researchers suggest tests should be conducted to see who clicks on malicious links. Conducting those tests is not a witch hunt, rather, it can give universities a better idea about how easy staff and students are being duped. Universities should also consider the use of multi-factor authentication to make accounts more secure.
Figures from Trustwave show there has been a steady decline in exploit kit activity over the past year. Exploit kits were once one of the biggest cybersecurity threats. In late 2015 and early 2016 exploit kits were being extensively used to spread ransomware and malware. Now exploit kit activity has virtually dropped to nothing.
Exploit kits are toolkits that are loaded onto malicious or hijacked websites that probe for vulnerabilities in browsers and plugins such as Adobe Flash Player and Java. When a new zero-day vulnerability was discovered, it would rapidly be added to exploit kits and used to silently download ransomware and malware onto web visitors’ computers. Any individuals that had failed to keep their browsers and plugins up to date would be at risk of being infected. All that would be required was make them – or fool them- into visiting a malicious website.
Links were sent via spam email, malvertising was used to redirect web visitors and websites were hacked and hijacked. However, the effort required to develop exploits for vulnerabilities and host exploit kits was considerable. The potential rewards made the effort more than worthwhile.
Exploit kits such as Angler, Magnitude and Neutrino no longer pose such a big threat. The actors behind the Angler exploit kit, which was used to spread Locky ransomware in early 2016, were arrested. Law enforcement agencies across the world have also targeted gangs running these exploit kits. Today, exploit kit activity has not stopped entirely, but it is nowhere near the level seen in the first half of 2016.
While this is certainly good news, it does not mean that the threat level has reduced. Ransomware and malware are still major threats, all that has happened is cybercriminals have changed tactics for distributing the malicious programs. Exploit kits are not dead and buried. There has just been a lull in activity. New exploit kits are undoubtedly being developed. For the time being, exploit kit activity remains at a low level.
Now, the biggest threat comes from malicious spam email messages. Locky and other ransomware variants are now almost exclusively spread via spam email messages. Cybercriminals are also developing more sophisticated methods to bypass security controls, trick end users into opening infected email attachments, and improve infection rates.
Much greater effort is now being put into developing convincing phishing and spear phishing emails, while spam emails are combined with a wide range of social engineering tricks to get end users to open infected email attachments. End users are more knowledgeable and know not to click on suspicious email attachments such as executable files; however, malicious Word documents are another matter. Office documents are now extensively used to fool end users into installing malware.
With cybercriminals now favoring spam and phishing emails to spread malware and ransomware, businesses need to ensure their spam defenses are up to scratch. Employees should continue to be trained on cybersecurity, the latest email threats should be communicated to staff and advanced spam filters should be deployed to prevent messages from being delivered to end users.
Security researchers in Israel have developed a proof-of-concept exploit called DoubleAgent that takes advantage of vulnerabilities in antivirus products to turn them against users. The exploit could potentially be incorporated into DoubleAgent malware, although there have been no known attacks that take advantage of the flaws in AV products to the researchers’ knowledge.
The proof-of-concept was developed by Cybellum researchers, who say that most third-party Windows antivirus products are susceptible and could potentially be hijacked. To date only three AV companies have confirmed that they are developing patches to block potential DoubleAgent malware attacks – AVG, Trend Micro and Malwarebytes.
The attack involves the Microsoft Application Verifier, which is used to check for bugs in programs that run on Windows. The researchers use DLL hijack techniques to fool the verifier using a malicious DLL. They claim the technique could be used to insert a custom verifier into any application.
DoubleAgent malware may not yet have been developed to exploit the zero-day vulnerability, although the researchers say they have used their proof-of-concept to take full control of the Norton Security AV program – many other AV products are also susceptible to this type of attack.
The Cybellum-developed DoubleAgent malware could be used in a number of different attack scenarios, all of which are particularly chilling.
Since the antivirus program can be pwned by an attacker, it could be turned on the user and used as malware. Antivirus software is trusted, so any actions taken by the AV program would be treated as legitimate. The researchers warn that the AV program could be turned into a double agent and do anything the attackers wanted.
The AV solution could be instructed to whitelist certain other programs allowing an attacker to install any malware undetected. Once installed, the malware would run totally undetected and the user would be unaware that their AV software had been rendered virtually useless. The AV software would also be prevented from flagging data exfiltration or communications with the attacker’s C&C.
An attacker could cripple a company’s applications using the DoubleAgent malware. If a legitimate program used by the company is marked as malicious by its antivirus software program, it would be prevented from running. It would therefore be possible to perform Denial of Service attacks. Also, since AV software has the highest level of privileges, it could be used to perform any number of malicious actions, such as deleting data or formatting a hard drive. That means a ransomware-style attack could be performed or the company’s computer systems could be sabotaged.
Fortunately, only Cybellum has the code and AV companies that have been found to be susceptible to such an attack have been notified. Patches are therefore likely to be developed to prevent such an attack.
The SANS Internet Storm Center reports that the Blank Slate spam campaign which was first detected in July last year is now being used to spread Cerber ransomware, rather than previous favorites Locky and Sage 2.0.
In the majority of cases, emails used to spread ransomware and other nasties use a variety of social engineering techniques to trick end users into opening the email attachments and infecting their computers. However, the Blank Slate spam campaign opts for simplicity. The spam email messages contain no text, hence the name ‘blank slate’.
Without any social engineering tactics, infection rates are likely to be much lower. However, researchers suggest that more email messages are likely to get past security defenses using this technique. Since more emails are delivered to end users’ inboxes, this is likely to make up for the fact that fewer attachments will be opened. The blank slate spam campaign is believed to be spread via botnets.
Cerber ransomware has been a major threat over the past 12 months. The ransomware is frequently updated to ensure it avoids detection. The latest blank slate spam campaign is being used to spread the latest form of the ransomware, which hides malicious code inside Nullsoft Scriptable Install System (NSIS) installers.
Security researchers at Palo Alto Network’s Unit 42 team report that Cerber ransomware is being hosted on around 500 separate domains. When domains are detected by hosting companies they are rapidly shut down; however, new domains are then registered by the criminals to take their place.
Since new domains can easily be registered using stolen credentials, the costs to cybercriminals are low. The cost of signing up for a new domain are negligible. Burner phones can be purchased cheaply and the numbers provided when registering domains, email addresses can be registered free of charge, and stolen credit card details can be used to make payment. There is no shortage of stolen credit card numbers to use. However, the rewards from Cerber ransomware infections are high. Now, the keys to decrypt data locked by Cerber ransomware costs victims 1 Bitcoin – around $1,000.
A recent survey conducted by CBT Nuggets has revealed that even tech savvy people are prone to commit cybersecurity howlers and place themselves, and their organization, at risk. In fact, far from intelligence preventing individuals from suffering online identity theft and fraud, it appears to make it far more likely.
The survey, which was conducted on 2,000 respondents, showed that people who believed they were tech savvy were actually 18 times more likely to become victims of online identity theft.
The more educated individuals were, the more likely they were to become victims of cybercrime. The survey revealed that high school graduates were less likely to be victims of cybercrime than individuals who had obtained a Ph.D.
24% of respondents with a Ph. D said they were a victim of identity theft compared to 14% who had a Bachelor’s degree, 13% who were educated to college level and 11% who had been educated only to high school level.
Women were found to be 14% more likely to have their identities stolen than men, and millennials were less likely to suffer identity theft than Baby Boomers and Generation X.
Interestingly, while the vast majority of malware targets Windows users, the survey revealed that users of Apple devices were 22% more likely to be victims of identity theft than Windows users, although Android phone users were 4.3% more likely than iPhone users to suffer identity theft.
There were some interesting results about the level of care used when venturing online. Even though the risk of cyberattacks on law firms has increased in recent years and law firms are a major target for cybercriminals, lawyers were less likely than other professionals to follow online security best practices.
69% of respondents from the legal profession did not follow online security best practices because they were too lazy to do so. Only people in ‘religious industries’ fared worse on the laziness scale (70%).
46% of healthcare industry professionals said they were too lazy when it came to cybersecurity, a particular worry considering the value of healthcare data and the extent to which cybercriminals are conducting attacks on the healthcare industry. The most common reason given for lax security and taking risks online was laziness, being too busy and it being inconvenient to follow security best practices.
65.9% of respondents believed they faced a medium or high risk of being hacked, yet only 3.7% of respondents said they followed all of the basic security recommendations. Perhaps that’s why so many people felt they faced a medium or high risk of being hacked!
One of the biggest risks taken by respondents was avoiding using public Wi-Fi networks. Only 11.8% of respondents said they avoided connecting to the Internet on public Wi-Fi networks. However, when it comes to divulging sensitive information while connected to a public Wi-Fi network, people were more savvy. 83.3% said they avoided transmitting sensitive information when connected to public Wi-Fi networks. Only 40.6% of respondents said they updated their devices every time they were prompted to do so.
The survey also showed which states were the worst for identity theft. While Florida often makes the headlines, the state ranked in the bottom ten for identity theft, with just 11% of respondents from the state saying they had suffered identity theft. The worst states were Maryland with 28% of respondents saying they were victims of identity theft, followed by Alabama with 26% and Kentucky with 22%. The safest states were Alabama (6%) and Louisiana (5%).
An investigation into a November Metropolitan Urology ransomware attack has revealed that the attackers may have gained access to the protected health information (PHI) of almost 18,000 former patients.
The Metropolitan Urology ransomware attack occurred on November 28, 2016 and impacted two servers used by the medical group. While the ransomware successfully encrypted a wide range of files, it was not initially known whether any data covered by Health Insurance Portability and Accountability Act Rules had been accessed.
An external computer security firm was contracted to conduct an investigation, which revealed on January 10, 2017 that PHI was potentially accessed by the attackers. Names, procedural codes, dates of service, account numbers, control numbers, and other ID numbers were all potentially viewed. In total, 17,364 patients who had visited Metropolitan Urology centers for treatment between 2003 and 2010 were impacted by the Metropolitan Urology ransomware attack.
The Metropolitan Urology ransomware attack is the latest in a long list of ransomware attacks on U.S. healthcare providers in recent months. The healthcare industry is being extensively targeted by cybercriminals who know that healthcare providers are heavily reliant on data and need access in order to continue to provide medical services to patients. If patient data are encrypted and systems taken out of action, there is a high probability that a ransom demand will be paid.
However, in the case of the Metropolitan Urology ransomware attack, computers were recovered by the IT security firm and it would appear that a ransom was not paid. The same cannot be said of Hollywood Presbyterian Medical Center. In January, a ransom payment of $17,000 was made to recover files that had been encrypted by ransomware. Many other healthcare providers have similarly paid to have their data decrypted.
HIPAA and Ransomware Attacks
In July last year, following a spate of healthcare ransomware attacks, the Department of Health and Human Services’ Office for Civil Rights – which enforces HIPAA Rules – confirmed ransomware attacks are reportable security breaches. All HIPAA breaches must be reported to OCR within 60 days of the discovery of the breach and patients must similarly be notified of any incidents in which their PHI has been compromised.
A HIPAA breach is classed as “the acquisition, access, use, or disclosure of PHI in a manner not permitted under the HIPAA Privacy Rule which compromises the security or privacy of the PHI.”
Not all forms of ransomware involve the exfiltration of data, but a ransomware infection still counts as a HIPAA Privacy Rule breach. OCR confirmed that the encryption of PHI does count at a HIPAA breach because the information has been disclosed to a third party.
Ransomware incidents are therefore reportable and warrant notifications to be issued to patients unless the covered entity can demonstrate there is a “low probability that PHI has been compromised.”
OCR suggests that the way to do this is to conduct a risk assessment and investigate the nature and extent of PHI that has been viewed, the individuals that may have accessed the PHI, whether the PHI was stolen or viewed, and the extent to which the risk to PHI has been mitigated.
The covered entity should also determine which malware variant was used and the algorithmic processes used by that malware to encrypt data. Demonstrating a low probability of a PHI compromise may therefore prove problematic for healthcare organizations, especially smaller healthcare organizations with limited resources.
Protecting Healthcare Computers from Ransomware Attacks
Protecting against ransomware attacks requires investment in a wide range of different solutions. Organizations can focus on preventing ransomware from being installed by blocking the main vectors used to spread infections. Spam filtering solutions can be highly effective at blocking email-borne threats. Preventing suspicious emails from being delivered reduces reliance on end users being able to identify emails as malicious and stops them from opening infected attachments and clicking on malicious links.
To block web-borne attacks, healthcare organizations can implement a web filtering solution to control the file types that can be downloaded. The solution can also be used to block websites known to contain malware or exploit kits. A web filter can be configured to prevent end users from accessing certain types of websites that carry a high risk of infection.
Endpoint security solutions can help to detect ransomware infections, allowing rapid action to be taken to reduce the extent of an infection. Computers and/or servers can then be isolated to prevent the spread of the ransomware to other connected devices.
However, since it is not possible to reduce risk of infection with ransomware to zero, organizations must ensure that data is backed up and can be recovered in the event that computers are encrypted. Multiple backups should be performed, and backup files should be stored on air-gapped devices and in the cloud.
For further information on protecting your organization from the threat of ransomware, contact the TitanHQ team today.
The Solicitors Regulation Authority in the United Kingdom has recently issued a warning about law firm email scams following a sharp rise in law firm cyberattacks.
According to SRA figures, almost 500 UK law firms have been targeted by cybercriminals. One of the most common law firm email scams seen in recent weeks involves an attacker sending an email to a solicitor pretending to be a new client. While the attacker could claim to have any number of legal problems in the initial email, one of the favored themes is a property or business that is about to be purchased or sold.
Legal services are requested and, when the solicitor replies, the attacker sends an email containing a malicious email attachment. The email attachment does not contain the malware, instead a malicious macro is embedded in the document. A believable explanation for the inclusion of the macro is provided in the document to allay suspicion. If the macro is enabled, a script is run that downloads the malicious payload. The download occurs silently so the solicitor is unlikely to be aware that their computer has been infected.
The malware then collects and exfiltrates sensitive data, or provides access to the solicitor’s computer allowing the attacker to search for any useful data. Keyloggers can also be installed to log keystrokes on the infected computer and collect login information for email and bank accounts.
The SRA has emphasized there is a high risk of attack, suggesting UK solicitors should treat cybercrime as a priority risk. Action should be taken promptly to mitigate the risk and ensure that the firm’s data are secured. The SRA warns that a cyberattack can cause considerable damage to a firm’s reputation and could result in significant harm to clients. Clients and the law firm can suffer considerable financial losses as a result of these scams.
Not all cyberattacks on law firms involve malware. Phishing is also a major risk. Many law firm email scams attempt to get solicitors to reveal sensitive information such as login credentials, passwords, or other confidential information. These law firm email scams are not easy to identify. Cybercriminals invest considerable time and effort into building up relationships with solicitors via email or over the telephone to build trust. Once a personal relationship has been established it is far easier for the scammers to fool solicitors into revealing sensitive information.
The seriousness of the threat is clear from the reports of cybercrime received by the SRA from solicitors over the past year. The SRA says more than £7 million of clients’ money has been stolen from solicitors in 2016.
The advice to law firms on reducing cybersecurity risk is:
- Make sure all data are backed up and stored securely on a drive that is not connected to a computer
- Make use of secure cloud services for storing sensitive data and accessing and processing information
- Keep software up to date. Patches and software/system updates should be applied promptly
- Solicitors should consider using encryption services for all stored data, especially on mobile devices
- Antivirus and antimalware systems should be installed and set to update definitions automatically. Regular scans of systems should also be scheduled.
As an additional protection against law firm email scams, solicitors should implement an advanced antispam solution to prevent phishing and other malicious emails from being delivered.
To protect against malicious links and redirects from malvertising, solicitors should consider implementing a web filtering solution. A web filter can be used to block visits to webpages known to contain malware.
The world’s largest spam operation has been exposed, and along with it, a massive database of email addresses. More than 1.37 billion email addresses, names, addresses, and IP addresses were in the database, which was exposed as a result of an error made during a backup. The company behind the operation is the email marketing firm River City Media – A legitimate email marketing company that uses some decidedly shady email marketing practices.
So how large is the world’s largest spam operation? According to MacKeeper researchers, the company behind the massive spamming campaigns were sending up to one billion spam email messages every day. However, due to the leak, life is likely to get a lot tougher for the email marketing firm. Its entire infrastructure has now been added to the spamming blacklist maintained by Spamhaus: The world leader in providing up to date threat intelligence on email spam and related spamming activity.
So how does a database from the world’s largest spam operation get released on the Internet? Faulty backups! The company failed to configure their Rsync backups correctly, resulting in those backups being available online without any need for a password. The database was discovered by MacKeeper security researcher Chris Vickery.
The revelation that such a large database had been obtained was huge news. In fact, it even drew a response from the Indian government, which felt it necessary to explain that it was not the source of the leak. The Indian government’s federal ID system is one of a very small number of databases that contain that number of records.
The number of records in the database is so large that almost everyone that uses email would either be on the list or would know someone that is.
How does a company amass so many email addresses? According to Vickery, there are various methods used, although he said “credit checks, education opportunities, and sweepstakes,” are typically used to obtain the email addresses, as are legitimate marketing campaigns from major brands. Users divulge their email addresses during these campaigns in order to receive a free gift, special offer, or an online service. Hidden away in the terms and conditions, which few people read, is confirmation that the information collected will be shared with marketing partners. Those marketing partners then share addresses with their partners, and their partners’ partners, and so on. Before long, the email addresses will be made available to a great deal of spammers.
When spammers use those addresses, there is a high probability that the domains used for sending the marketing messages will be blocked. To get around this, companies such as RCM use warm up accounts to send out their campaigns.
New campaigns will be sent to the warm up accounts, and provided they do not generate complaints, the sender of the emails will be marked as a good sender. With a good reputation, the spammers will be able to scale up their operation and send out billions of messages. If at any point messages start to be rejected or complaints start to be received, the domain is dropped and the process starts again. That way, RCM is able to bypass spam filtering controls and continue to send messages.
A detailed insight into the world’s largest spam operation and the techniqus used to send spam messages has been published by CSO Online, which worked with Vickery, MacKeeper, and Spamhaus following the discovery of the huge database.
Free Dharma ransomware decryption is now possible following the publication of the decryption keys used by the cybercriminal gang behind the ransomware.
The Dharma ransomware decryption keys have now been used to develop a decryptor to unlock Dharma-encrypted files. If your organization has been attacked with Dharma ransomware, you can unlock your files by using the Dharma ransomware decryptor developed by Kaspersky Lab or ESET. A ransom no longer needs to be paid.
The decryptor available from ESET will unlock files encrypted by Dharma and its predecessor, Crysis. Kaspersky Lab has added the keys to its Rakhni ransomware decryptor.
It is easy to determine which ransomware variant has been used by checking the file extension on ransomware-encrypted files. Dharma ransomware adds the ‘.dharma’ extension to files after they have been encrypted.
The keys to unlock the encryption were posted on a BleepingComputer tech support forum last week by an individual with the username ‘gektar’. Where that individual obtained the decryption keys is unknown, although both Kaspersky Lab and ESET have confirmed that the decryption keys are genuine. The decryption keys will work for all variants of Dharma ransomware.
The name gektar is not known to security researchers. No other online posts are believed to have been made with that username. The username seems to have been created solely to post the decryption keys. It would appear the individual responsible wants to keep a low profile.
Unfortunately, there are now more than 200 ransomware families, with many different ransomware variants within each of those families. Dharma may be no more, but the ransomware threat is still severe. There are still no decryptors available for the biggest ransomware threats: Locky, Samsa (Samsam) and CryptXXX, which are still being extensively used by cybercriminal gangs to extort money out of businesses.
The best defense that businesses can adopt to ensure ransomware-encrypted files can be recovered for free is to ensure that backups of critical files are made on a daily basis. Those backups should be stored on an air-gapped device and also in the cloud.
Recovery from backups and removing ransomware infections can be a labor-intensive and time-consuming process, so anti-ransomware defenses should also be employed to prevent infection. We recommend using SpamTitan to block ransomware emails from being delivered to end users’ inboxes and WebTitan to prevent drive-by ransomware downloads.
A recently published study from the Federal Trade Commission’s (FTC) Office of Technology Research and Investigation has revealed that anti-phishing technologies are not being widely adopted by U.S. businesses.
While there are several anti-phishing technologies that could be adopted by businesses to reduce susceptibility to phishing attacks, relatively few businesses are taking full advantage of the latest anti-phishing solutions.
Phishing is a type of online scam primarily conducted via email, although the same type of scam can occur online on malicious websites. The email version of the scam involves sending an email request to an employee in which the attacker claims to be a well-known source. That could be an Internet service provider, a well-known company such as Amazon or Netflix, or the CEO or CFO of the employee’s company. The target is asked to send sensitive personal or business information.
Typically, the attackers request financial information, logins, or as we have seen on numerous occasions this year, employees’ W-2 Form data. The information is then used for identity theft and fraud. In the case of the W-2 Form phishing scams, the information is used to file fraudulent tax returns in employees’ names.
Phishing is one of the biggest cybersecurity threats that businesses must mitigate. A separate study conducted by PhishMe showed that the vast majority of cyberattacks start with a phishing email. The largest ever healthcare data breach – which resulted in the theft of 78.8 million health insurance members’ credentials from Anthem Inc. – occurred as a result of an employee responding to a phishing message.
The FTC’s research revealed that most businesses have now implemented authentication controls, but little else. The FTC study (performed by OTech) found that 86% of businesses were using the Sender Policy Framework (SPF) to determine whether emails that claim to have been sent from a business were actually sent from the domain used by that business.
While this is an important anti-phishing control, SPF alone is insufficient to protect businesses from phishing attacks. SPF controls can be bypassed.
The FTC study found that fewer than 10% of businesses were using Domain Message Authentication Reporting & Conformance (DMARC) to receive intelligence on the latest spoofing attempts used to bypass SPF controls. DMARC allows businesses to automatically reject unauthenticated messages, yet few use the technology.
While not covered by the FTC study, one of the best additional anti-phishing technologies is a spam filtering solution such as SpamTitan.
SpamTitan blocks 99.97% of spam email messages, 100% of known malware via its dual anti-virus engines, while a powerful anti-phishing component looks for common signatures of phishing emails and prevents them from being delivered.
The threat from phishing is growing. A study from the Anti-Phishing Working Group revealed there was a 65% increase in phishing attacks in 2016 compared to 2015. Last year, 1,220,523 phishing attacks were reported. With attacks increasing at such a rate, and given the number of phishing attacks on businesses so far in 2017, more must be done to prevent attacks.
Is your business doing enough to prevent phishing attacks? What anti-phishing technologies has your business adopted to prevent employees being scammed?
Law firms are prime targets for cybercriminals, so it is perhaps unsurprising that there has been an increase in law firm cyberattacks in recent months. With the threat level now at unprecedented levels, protections must be increased to keep data secure.
Many law firm cyberattacks are targeted, with hackers seeking access to highly sensitive data, although law firms can just as easily fall victim to random attacks. Those attacks still have potential to cause considerable harm.
A recent security incident has showed just how easy it is for cybercriminals to conduct attacks and take advantage of unpatched vulnerabilities.
Zero-Day WordPress Vulnerability Discovered
WordPress is a flexible website content management system. It requires relatively little skill to update and WordPress sites can be easily managed. It is therefore no surprise that it has become one of the most popular website content management systems. There are more than 60 million websites running WordPress, with the platform popular with many SMBs, including law firms.
However, the popularity of the platform makes it a target for cybercriminals. Zero-day WordPress vulnerabilities provide cybercriminals with access to the sites and their associated databases.
When a new zero-day vulnerability is discovered, WordPress rapidly issues a patch. One zero-day WordPress vulnerability was recently discovered and the platform was updated rapidly as usual. Users of the site were urged to update to version 4.7.2 as a matter of urgency.
The reason for urgency was not announced until a week later after a significant proportion of WordPress sites had been updated. However, once the vulnerability was disclosed, hackers were quick to take advantage. Within 48 hours of the REST API vulnerability being disclosed, hackers started exploiting it on a grand scale. Sucuri was tracking the attacks and monitoring its WAF network and honeypots closely to see if hackers were actively exploiting the flaw.
The cybersecurity firm reports that it identified four different hacking groups that were exploiting the WordPress vulnerability. They were performing scans to find sites still running outdated WordPress versions and once vulnerable sites were identified they were attacked.
Law Firm Cyberattacks See Websites Defaced
The failure to update WordPress promptly resulted in more than 100,000 websites being attacked, according to figures from Google. Websites were defaced, additional pages added and the sites used for SEO spam. In this case, the aim was not to gain access to data nor to load malware onto the sites, although that is not always the case.
The speed at which the WordPress flaw was exploited shows how important it is to keep WordPress sites updated. Due to the popularity of the platform, had the hacking groups loaded malware onto sites, the number of individuals who could have been infected with malware would have been considerable.
The potential fallout from a website being hacked and defaced, or worse, from malware being loaded, can be considerable. Many small law firms were attacked as a result of failing to update their WordPress site within a week of the update being issued.
A defaced website, in the grand scheme of things, is a relatively quick fix, although such an attack does not inspire confidence in a company’s ability to keep sensitive data protected. For a law firm, that could mean the difference between getting a new client and that individual seeking another law firm.
In this case, the law firm cyberattacks could have been prevented with a quick and simple update. In fact, WordPress updates can be scheduled to occur automatically to keep them secure.
The take home message is not to ignore security warnings, to ensure that someone reads the messages sent from WordPress, and better still, to set updates to occur automatically.
BugDrop malware is a new and highly advanced email-borne threat detected in the past few days. While attacks are currently concentrated on companies in Ukraine, BugDrop malware attacks have already started in other countries. Companies in Austria, Russia and Saudi Arabia have also been attacked.
Due to the nature of the attacks, it is clear that the actors behind the new malware have access to significant resources. So far, BugDrop malware is known to have stolen an incredible 600 GB of data from around 70 confirmed targets. At the rate that the malware is stealing data, the storage required will be considerable. This is therefore unlikely to the work of an isolated hacker. A significant cybercriminal group or most likely, a foreign-government backed hacking group, is likely to be responsible for the attacks.
Companies involved in scientific research, critical infrastructure, news media, engineering, and even human rights organizations have been targeted.
The malware will steal documents stored on infected computers and networks to which the computer connects. Passwords are stolen and screenshots are taken. However, rather than simply gain access to intellectual property and other sensitive data, the malware has another method of obtaining information. BugDrop malware, as the name suggests, bugs organizations and records audio data.
The malware turns on the microphone on an infected computer and records conversations, which accounts for the huge volume of data stolen. The stolen files are then encrypted and uploaded to the attackers’ Dropbox account. Files are retrieved from the Dropbox account and are decrypted. The resources required for analyzing such huge volumes of data – including audio data – are considerable, as are the storage requirements.
The CyberX researchers who discovered the malware suggest that Big Data analytics are likely used rather than manually checking the stolen data. Either way, such an operation must be heavily staffed, which points to a state-sponsored group. CyberX says “Given the sophistication of the code and how well the operation was executed, we have concluded that those carrying it out have previous field experience.”
Since data exfiltration occurs via Dropbox, data exfiltration may not be detected. Many companies allow their employees to access Dropbox and connections to the storage service are often not monitored. Encryption is used, preventing many anti-virus solutions from detecting attacks or sandboxing the malware. The attacks also involve reflective DLL injection – since code is run in the context of other processes, detection is made more difficult.
BugDrop malware is being distributed via spam email using malicious macros in Word documents. If macros are enabled, the malware will be installed when the document is opened. Since many companies now automatically block macros and require them to be enabled on each document, the attackers prompt the user to enable macros by saying the document was created in a newer version of Microsoft Office. To view the contents of the document, macros must be enabled. The Word documents contains a professional image from Microsoft, including branding and Office logos, to make the warning appear genuine.
Google has released its latest statistics on the main corporate email security threats, with the search engine giant’s report also delving into the latest email-borne attacks on corporate Gmail account users. The report follows on from a presentation at the RSA Conference, which provided more detail on the biggest corporate email security threats that now have to be blocked.
According to Google’s data, spam is still a major problem for businesses. While the barrage of unsolicited emails is a nuisance that results in many hours of lost productivity, corporate users face a much bigger threat from spam. Malicious messages are a major menace.
Cybercriminals are targeting corporate users to a much higher extent than personal email account holders. The reason is clear. There is more to be gained from infecting corporate computers with malware than personal computers. Businesses are much more likely to pay ransoms if data are encrypted by ransomware. The data stored by businesses has much higher value on the darknet, and plundering business bank accounts nets far higher rewards.
It is therefore no surprise to hear that Google’s stats show that businesses are 6.2 times as likely to receive phishing emails and 4.3 times as likely to be targeted with malware-infected emails. Spam on the other hand is more universal, with business emails accounts 0.4 times as likely to be spammed than personal accounts.
Main Corporate Email Security Threats by Business Sector
Corporate email security threats are not spread evenly. Cybercriminals are conducting highly targeted attacks on specific industry sectors. Google’s data show that nonprofits are most commonly targeted with malware, receiving 2.3 times as many malware-infected emails as business accounts. The education sector is also being extensively targeted. Schools, colleges and universities are 2.1 times as likely to be sent malware-infected emails, followed by government industries, which are 1.3 times as likely to be targeted than businesses.
However, when it comes to email spam and phishing attacks, it is the business sector which is most commonly targeted. Currently, email spam is the biggest problem for businesses in the IT, housing, and entertainment industries, while phishing attacks are much more commonly conducted on IT companies, arts organizations and the financial sector.
Malicious Spam Poses a Major Risk to Corporations
As we have seen on so many occasions in the past two years, email is a major attack vector for businesses. Cybercriminals use spam email to infect end users with information-stealing malware, file-encrypting ransomware, and conduct credential-stealing phishing attacks. Email-borne attacks are still highly profitable. The attacks require little effort and criminals are able to bypass security controls by targeting end users.
Given the massive increase in malware and ransomware variants in the past two years, blocking spam and malicious messages is now more important than ever. Additionally, the cost of mitigating data breaches is rising year on year (According to the Ponemon Institute). Malware and ransomware infections can be extremely costly to resolve, while successful phishing attacks can net cybercriminals huge sums from selling stolen corporate data and making fraudulent bank transfers. Those costs must be absorbed by businesses.
Protecting Your Organization from Email-Borne Threats
Fortunately, it is possible to mitigate corporate email security threats by using an advanced spam filtering solution such as SpamTitan. SpamTitan blocks 99.97% of spam messages and boasts a low false positive rate of just 0.03%. A powerful anti-phishing component prevents phishing emails from being delivered to end users, while dual anti-virus engines (Kaspersky Lab/ClamAV) are used to scan all incoming (and outgoing) messages for malicious links and attachments.
If you want to improve your defenses against the latest corporate email security threats, contact the TitanHQ team today. Since SpamTitan is available on a 30-day free trial, you can also see for yourself how effective our product is at protecting your organization from email-borne threats before committing to a purchase.
A fresh round of email warnings for Yahoo account holders has been sent; however, cybercriminals are taking advantage: A new Yahoo breach phishing campaign has been detected that piggybacks on the latest news.
New Warnings for Yahoo Email Account Holders
Yahoo has been sending fresh warnings to account holders explaining that their accounts may have been compromised as a result of the Yahoo cyberattacks in 2013 and 2014. The Yahoo cyberattacks were the largest ever seen, resulting in the theft of 1 billion and 500 million users’ credentials. Yahoo has now confirmed that the attacks involved the use of forged cookies to bypass its security controls.
Yahoo’s CISO Bob Lord has told account holders in the email that “We have connected some of the cookie forging activity to the same state-sponsored actor believed to be responsible for the data theft we disclosed on Sept. 22, 2016.” As was the case in previous Yahoo warnings, accounts should be reviewed for any suspicious activity and users should not click on links or open attachments from unknown senders.
Yahoo Breach Phishing Campaign Detected
Many active Yahoo account holders are concerned about email security following news of the cyberattacks in 2013/2014 and cybercriminals have been quick to take advantage. The fresh round of email warnings has only heightened fears, as well as the risk for account holders. Cybercriminals have been piggybacking on the latest news of account breaches and have been sending their own messages to Yahoo email users. The latest Yahoo breach phishing email campaign play on users’ fears over the security of their accounts. The Yahoo breach phishing emails attempt to fool security conscious account holders into clicking on malicious phishing links and revealing sensitive information.
In the latest round of warnings, Yahoo urged users to take advantage of Yahoo’s password-free security service – the Yahoo Account Key authentication service. The latest round of Yahoo breach phishing emails offer account holders the option of upgrading the security on their accounts as well. To improve take up, the attackers add urgency by saying the target’s account has been temporarily limited for failing an automatic security update. A link is supplied for users to click to re-verify account ownership. If they fail to click on the link and update their details, they will be permanently locked out of their account.
The Yahoo breach phishing campaign is likely to claim many victims, although the phishing emails are fairly easy to identify as fake. The emails appear to have come from an account called ‘Mail’, although checking the actual email address will reveal that the email was not sent from a domain used by Yahoo. There are also some errors with the structure of the email. Slight grammatical errors are a tell-tale sign that the emails are not genuine.
However, not all Yahoo breach phishing emails contain errors. Some have been highly convincing. Users are therefore advised to exercise extreme caution when using their Yahoo accounts and to be on high alert for Yahoo breach phishing emails.
Cost of the Yahoo Cyberattacks
The Yahoo cyberattacks of 2013 and 2014 have cost the company dearly. While it is unclear what the final cost of the Yahoo cyberattacks will be, it will certainly be well in excess of $250 million – That is the price reduction Verizon Communications is seeking following the revelation that Yahoo account holders’ credentials were stolen in the two massive cyberattacks reported last year. The purchase price of $4.8 billion, which was agreed in the summer of 2016, is to be reduced. There was talk that the deal may even not go ahead as a result of the Yahoo cyberattack revelations. While Yahoo will not want a price reduction, there are likely to be a few sighs of relief. Verizon were rumored to be looking for a $1 billing reduction in the price just a few weeks back.
In the United Kingdom and Eire, homebuyers and sellers are being targeted by cybercriminals using a new solicitor email scam. The scam, which involves mimicking a solicitor, is costing victims thousands. There have also been some reported cases of cybercriminals sending solicitors emails claiming to be their clients and requesting changes of bank details. Any pending transfers are then made to the criminals’ accounts.
Since funds for home purchases are transferred to solicitors’ accounts before being passed on to the sellers, if cybercriminals are able to change the bank details for the transfers, the funds for the purchase will be paid directly into their accounts.
While email spoofing is commonplace, this solicitor email scam often involves the hacking of solicitors’ email accounts. Once access has been gained, cybercriminals search for emails sent to and from buyers and sellers of homes to identify potential targets. While the hacking of email accounts is occurring, there have also been instances where emails between buyers, sellers, and their solicitors have been intercepted. When bank details for a transfer are emailed, the hackers change the bank information in the email to their own and then forward the email on.
The solicitor email scam is highly targeted and communications are monitored until the crucial point in the purchasing process when a bank transfer is about to be made. Since the potential rewards are considerable, cybercriminals are willing to put the time and effort into the scam and be patient. Buyers, sellers, and solicitors are well researched and the emails are highly convincing.
Instances of this conveyancing scam have been increasing in recent months and it has now become the most common cybercrime affecting the legal sector. The Law Society, a representative body for solicitors in the UK, has issued a warning about the conveyancing scam due to an increased number of complaints, although it is currently unclear how many fraudulent transfers have been made.
There is of course an easy way for solicitors to prevent such a scam from being successful, and that is to contact the homebuyer or seller before any transfer is made and to verbally confirm the bank details by telephone. Alternatively, policies can be developed requiring bank account information to only be sent via regular mail.
The Solicitors Regulation Authority advises against the use of email for property transactions due to the potential for cybercriminals to intercept and spoof messages. Email may be convenient, but with such large sums being transferred it pays to exercise caution.
While this solicitor email scam is common in the UK and Eire, legal firms in the United States should also exercise caution. Since the conveyancing scam is proving to be lucrative, it will only be a matter of time before U.S. lawyers are targeted.
Cyberattacks on law firms have been steadily increasing over the past three years. According to data from PwC’s annual Law Firms Survey last year, 73% of the UK’s top 100 law firms have been attacked by cybercriminals in the past year. In 2014/2015, 62% of the top 100 law firms were attacked. The previous year the figure stood at 45%. In the past two years, cyberattacks on law firms have increased by a staggering 60%.
According to PwC’s figures, large law firms are the most frequently targeted. 90% of the top 25 legal firms had experienced a cyberattack in the past 12 months. The types of attacks are highly varied, although the most common way attacks occur is via the firm’s email system.
Spear phishing emails are sent to solicitors in an attempt to obtain banking credentials and access to email accounts. When solicitors respond to these phishing emails and divulge their banking credentials, client funds are transferred to the criminals’ accounts. According to the survey, 84% of legal firms said they had experienced a phishing attack in the past year.
Solicitors in the UK and Ireland and attorneys in the United States are also being sent bogus emails that claim to be from home buyers or sellers. Instructions are provided asking for funds to be transferred to alternate accounts. Hackers eavesdrop on email conversations and are aware when funds are about to be transferred. They then sent an email to an attorney/solicitor posing as the buyer/seller of a property and provide alternate bank accounts asking for the funds to be transferred to the new account.
Buyers and sellers of properties are also targeted in a similar fashion. They are sent emails with the hacker claiming to be their solicitor. Alternate bank account details are provided for transfers. This is now one of the main types of cyberattacks on law firms and their clients.
Direct attacks on networks still occur, with hackers taking advantage of vulnerabilities in security defenses. However, law firm hacking only accounts for around 16% of incidents. Malware is a much bigger threat. Malware is delivered via spam email or drive-by downloads from the Web. 55% of legal firms say they have experienced a malware attack in the past 12 months. Malware can be ransomware – which locks computers with powerful encryption until a ransom payment is made or keyloggers that record sensitive data such as usernames and passwords. Malware can also enable criminals to gain access to systems to steal sensitive data and extort money out of law firms.
Law firm cyberattacks can be costly to resolve; however, the biggest cost can be loss of reputation. If law firms suffer cyberattacks and client data is stolen or exposed, reputations can be permanently damaged. Legal firms that are unable to ensure that their clients’ information remains confidential may find the cost of removing malware the least of their problems.
To prevent phishing emails and malware from being delivered to inboxes, an advanced spam filter is required. SpamTitan includes a powerful anti-phishing component that recognizes the common signatures of phishing emails and ensures they are not delivered. SpamTitan also blocks 100% of known malware and ransomware, ensuring end users do not receive malicious email attachments and links to malware-ridden websites.
To find out how SpamTitan can improve your security posture, contact the TitanHQ team today and take the first step toward preventing your law firm from being added to next year’s PwC’s law firm cyberattack statistics.
Anti-phishing training can help an organization improve its security posture. However, even with training on phishing email identification, employees still fail to spot many email scams. Anti-phishing training alone is insufficient to prevent successful phishing attacks.
The Threat from Phishing is Growing
Your business is likely to be bombarded with phishing emails, especially at this time of year. Tax season sees millions of emails sent to businesses by cybercriminals who want access to employees’ W-2 Forms. However, phishing is a year-round problem. It has been estimated that an astonishing 156 million phishing emails are now being sent every single day.
As we have already seen this year, phishing scams can be highly convincing. Many businesses have discovered employees have responded to these scams in the belief that the email requests are genuine. The cost of those phishing attacks can be considerable for businesses, their customers and their employees.
Anti-Phishing Training Alone will Not Prevent Successful Phishing Attacks
To ensure employees are prepared, many businesses provide employees with anti-phishing training. They teach staff members how to identify phishing scams and the tell-tale signs that email requests are not genuine.
How effective is anti-phishing training? A recent analysis by Diligent showed that the average score on its phishing test was 76%. That means employees are failing to identify phishing scams 24% of the time and all it takes is one response to a phishing email for an employee’s email account to be compromised, a network login to be handed to cybercriminals, or the W-2 Forms of an entire workforce to be emailed to tax fraudsters.
Fortunately, as PhishMe’s data shows, with practice, employees get much better at identifying phishing emails. Providing training and conducting follow up tests using dummy phishing emails helps to show where training has failed. This allows organizations to provide further training to employees whose phishing email identification skills are poor. However, even with training and testing it will never be possible to ensure that 100% of employees identify 100% of phishing emails 100% of the time.
The Best Phishing Defense is to Prevent Phishing Emails from Being Delivered
Training should be provided and employees’ anti-phishing skills should be tested with dummy phishing exercises, but organizations should ensure that phishing emails are not delivered to end users’ inboxes. That means an advanced, powerful spam filtering solution is required.
SpamTitan blocks 99.97% of spam emails from being delivered. SpamTitan also includes a powerful anti-phishing component to block phishing attacks. However, blocking potentially malicious emails is only part of the story. It is also important to choose a solution that does not prevent genuine emails from being delivered.
Independent tests by VB Bulletin confirm SpamTitan has a consistently low false positive rate. Only 0.03% of genuine emails trigger SpamTitan’s anti-spam filters. The excellent catch rates and low false positives have seen SpamTitan win 36 consecutive VB Bulletin Anti-Spam Awards.
SpamTitan is available as a gateway appliance or a cloud-based solution, with both requiring minimal IT support. To suit the needs of service providers, the cloud-based version is available in a private cloud and is supplied in white-label format ready for rebranding.
The cost-effective solution is easy to implement, use and maintain and can be used to protect a limitless number of email accounts.
If you want to keep your employees’ inboxes free from phishing emails, malware, and ransomware, call the TitanHQ Sales Team today and say a fond farewell to email spam.
Another school phishing email attack has resulted in the W-2 Form data of school employees being emailed to tax fraudsters. This time, it was employees of Mercer County Schools in West Virginia whose data have been compromised.
The FBI has been called in to investigate the W-2 phishing scam and the IRS has been notified of the incident, while affected employees have been offered services to help them protect their identities.
The school phishing email attack is just one of many such attacks that have occurred this year. While businesses have been extensively targeted in the past, phishing attacks on schools are now commonplace. The problem has become so severe that the IRS recently issued a warning to schools of the risk of phishing email attacks, saying “This is one of the most dangerous email phishing scams we’ve seen in a long time.”
The Mercer County School District phishing attack was almost a carbon copy of many other tax season attacks this year. Already, there have been more than 29,000 victims of these attacks and there is still two months of tax season remaining.
The school phishing email attack involved the sending of an email to an employee in the HR/payroll department requesting a copy of W-2 Forms for all employees that worked in the previous fiscal year. The email was sent from an email account that was very similar to that used by the chief supervisor.
The email contained a slight variation from the genuine email address, which was enough to fool the recipient into thinking the email had been sent from the supervisor’s account. The employee then sent the W-2 forms of 1,800 staff members to the attackers as requested.
Databreaches.net has been tracking this year’s W-2 phishing scams and is maintaining a list of all organizations that have been scammed into revealing W-2 Form data. The list shows that school districts are being extensively targeted. Successful W-2 phishing attacks have been reported by the following schools and school districts in the past 6 weeks:
- Argyle School District, TX
- Belton Independent School District, TX
- Bloomington Public Schools, MN
- College of Southern Idaho, ID
- Davidson County Schools, NC
- Dracut Schools, MA
- Lexington School District 2, SC
- Manatee County School District, FL
- Mohave Community College, AZ
- Morton School District, IL
- Odessa School District, WA
- Tipton County Schools, TN
The Manatee County School District phishing attack resulted in the W-2 Form data of 7,900 employees being emailed to the scammers: The biggest school phishing email attack of the year to date. The Bloomington Public Schools attack also resulted in thousands of employees’ W-2 Forms being disclosed.
There are a number of measures that can be taken to reduce the risk of phishing attacks such as these. Training should be provided to HR and payroll staff and they should be instructed to carefully check senders’ email addresses to ensure the correct account has been used. Policies should also be developed requiring any W-2 Form requests to be verified with the sender via the telephone. It is also essential to implement a spam filtering solution with a powerful anti-phishing component. This will help to ensure that the emails are not delivered. A spam filtering solution will also block malware and ransomware emails from being delivered. The latter types of malicious emails have also been a major problem for school districts over the past year.
Email archiving is essential for most businesses; however, many businesses are not using a cloud-based email archiving solution. In fact, a large number rely on email backups, even though backups are impractical and data loss is a very real concern. But what are the benefits of secure, cloud-based email archiving over backups?
Loss of Email Simply isn’t an Option
Hillary Clinton could easily explain one of the most important benefits of a cloud-based email archiving solution. If an email archive is stored locally, should the device on which that archive is stored be lost or stolen, the entire archive would never be seen again. That is exactly what happened last year.
Donald Trump was quick to citizen Hillary Clinton. Not only was that archive lost, it could potentially have been accessed by an unauthorized individual. Donald Trump is keen not to make a similar mistake. He has reportedly started using a messaging app that deletes all messages once they have been read. Such an app would certainly prevent accidental disclosure, although it would not be an option for many businesses as regulations require emails to be kept for a number of years.
Loss of email is simply not an option in regulated industries. Big fines await companies who do not archive or backup their emails. Emails must be securely stored and made available to auditors or organizations will be in violation of the Sarbanes-Oxley Act, FINRA, HIPAA, and the Gramm-Leach-Billey Act to name but a few. If a backup or local email archive is lost, the consequences can be severe.
Take healthcare organizations for example. If a laptop computer is stolen and email backups containing electronic protected health information were on the device, those data could potentially be accessed by an unauthorized individual. That would be a violation of HIPAA Rules. The Office for Civil Rights could easily fine a healthcare organization millions of dollars for such a data breach. If emails are archived and stored in the cloud, such a breach would not occur in the event of device loss or theft.
Emails Must Be Found Quickly for Legal Discovery
If a lawsuit is filed against a company, it may be necessary to provide copies of emails as part of legal discovery. While many companies store old emails in backups, searching for emails can be a difficult, expensive and long-winded process. For an average-sized organization searching for emails could take weeks, even though emails need to be found in minutes. With an email archiving solution, archived messages can be searched and retrieved in a matter of seconds or minutes, not weeks.
Secure, Cloud-Based Email Archiving Resolves Storage Headaches
Considering the volume of emails now being sent, and the requirement for those emails to be kept for years in many cases, the space required for storing email is considerable. A recent report from Radicati Group suggests the average employee sends or receives 121 emails a day. For an organization with 500 employees that is 60,500 emails a day. With 22 working days each month, that amounts to 15,972,000 emails a year. Each of those emails may only be a few KB, but over a year the storage space required is substantial. Cloud-based email archiving not only allows millions of emails to be stored, there is no need for organizations to purchase any hardware for storage. All emails are securely stored in the cloud.
ArcTitan – Secure, Cloud-Based Email Archiving for Enterprises of All Sizes
The benefits of secure, cloud-based email archiving are clear. So what options are available that provide all of the benefits of cloud-based email archiving in an easy to use, cost effective package? To meet businesses’ email archiving needs, TitanHQ developed ArcTitan – a secure, cloud-based email archiving solution that allows organizations to meet compliance requirements, search email archives quickly, and retrieve messages in minutes. ArcTitan has excellent scalability, and can be used for old email storage by companies with ten to 10,000+ email accounts.
Emails can be archived from anywhere at any time, and messages can be accessed via a mail client or browser. Furthermore, with a pay as you go subscription, cloud-based email archiving is affordable for businesses of all sizes.
To find out more about the benefits of ArcTitan, contact the TitanHQ sales team today!
Spammers and scammers are constantly updating their malware distribution tactics to ensure their malicious payloads are delivered to unsuspecting end users. However, Microsoft has spotted a major change to malware distribution tactics used by cybercriminals. The change has prompted the software giant to issue a new warning.
Malware, including ransomware, is commonly distributed via spam email. Links to malicious websites are used in an attempt to bypass spam filter controls; however, malicious attachments are the delivery mechanism of choice for many cybercriminal gangs. Malicious links are commonly blocked by web filtering solutions – WebTitan for example prevents all users from visiting websites known to be malicious.
To bypass spam filter controls, attachments rarely include the actual malware or ransomware files, instead the files contain scripts that download the malicious payload.
Due to the ease at which these malicious downloaders are being identified, malware distribution tactics have been changed. Rather than use these suspect files, cybercriminals have switched to file types that are less obviously malicious. Microsoft has noticed a trend for using LNK files and SVG files containing malicious PowerShell scripts.
LNK files are Windows shortcut files which usually point to some form of executable file. SVG (Scalable Vector Graphics) files are image files, and are much more innocuous. These files are typically opened with image software such as Adobe Creative Suite or Illustrator. Double clicking on these malicious LNK and SVG files will launch PowerShell scripts that download malware or ransomware.
Protecting against these types of attacks may seem fairly straightforward. It is possible, for example, to set restrictions on PowerShell commands to prevent them from running. However, even with restrictions in place, those policies can be easily bypassed. Intel Security has recently explained one such method: “PowerShell’s Get-Content can access the content of a .ps2 malware script and pass it to Invoke-Expression (iex) for execution.”
Ransomware attacks on British schools have soared in recent weeks. The problem has become so serious that the British National Fraud and Cyber Crime Reporting Center, also known as Action Fraud, has issued a new ransomware warning to British schools.
Ransomware has grown in popularity with cybercriminals over the past 2 years, with attacks on organizations around the world soaring in 2016. 2017 may only be a few weeks old, but ransomware attacks are continuing at the high levels seen in 2016. Security experts predict that 2017 will see even more cyberattacks on schools and other educational institutions. Ransomware the attack method of choice.
Ransomware is a form of malware that encrypts data on a compromised system. A wide range of file types are locked with powerful encryption and a ransom demand is issued. If payment is made, the attackers claim they will supply the key to unlock the encryption. Without the key – the sole copy is held by the attackers – data will remain locked forever.
Some forms of ransomware have been cracked and free decryptors made available, but they number in the few. The majority of ransomware variants have yet to be cracked. Recovery depends on payment of the ransom or the wiping of the attacked system and restoration of files from backups.
While a standard charge per encrypted device was the norm early last year, ransomware is now more sophisticated. The attackers are able to set their payment demand based on the types of files encrypted, the extent of the infection, and the perceived likelihood of the victim paying up. Ransomware attacks on British schools have seen ransom demands of an average of £8,000 issued.
Ransomware Attacks on British Schools are Targeted, Not Random
Many ransomware attacks are random – Spam emails are sent in the millions in the hope that some of them reach inboxes and are opened by employees. However, ransomware attacks on British schools have seen a different approach used. Recent attacks have been highly targeted.
Rather than send emails out en masse, the spate of recent ransomware attacks on British schools start with a phone call. In order to find their target, the attackers call the school and ask for the email address of the head teacher. The email address is required because sensitive information needs to be sent that should only be read by the head teacher. Information such as mental health assessment forms and teacher guidance forms.
An email is then crafted and sent to the head teacher; addressed to that individual by name. While there are many types of ransomware emails, a number of recent ransomware attacks on British schools involved an email that appears to have been sent by the Department of Education. Other cases have involved the impersonation of the Department of Work and Pensions and telecom providers.
In the text of the email the attacker explains that they have sent some information in an attached file which is important and needs to be read. The attached file, usually in compressed format such as .ZIP or .RAR, contains files that install ransomware if opened.
How to Prevent Ransomware Attacks
Ransomware attacks on British schools can be highly sophisticated, although risk can be effectively mitigated.
- Ensure all staff with computer access are made aware of the risk of ransomware attacks
- Provide cybersecurity training to all staff, including how to identify ransomware and phishing emails
- Never open attachments or visit links in emails sent from unknown senders
- Implement a spam filter to capture and quarantine malicious spam emails
- Use a web filtering solution to prevent staff members from visiting malicious links and from downloading ‘risky’ files
- Ensure all software is kept up to date and patches are applied promptly
- Keep all anti-virus and anti-malware solutions up to date, setting updates to occur automatically
- Restrict the use of administrator accounts – Only use accounts with high levels of privileges for specific tasks
It is also essential to ensure that backups of all data are made on a daily basis and backup devices are disconnected after backups have been performed. Data should ideally be backed up to the cloud and on a physical backup device. In the event of an attack, data can then be recovered without paying the ransom.
University phishing scams targeting students have increased in recent months. Targeting some of the most well educated individuals may not appear to be the most rewarding strategy for scammers, but students are falling for these university phishing scams in their droves.
University Phishing Scams are Becoming Difficult to Identify
Awareness of phishing tactics has certainly improved thanks to educational programs, email warnings, and media coverage of phishing attacks, but in response, cybercriminals have got better at scamming. Today, phishing emails can be difficult to identify. In fact, in many cases, it is virtually impossible to tell a genuine email from a scam.
While students may be aware of the risks of clicking links in emails from unknown senders, the same cannot be said when the emails are sent from a contact. Emails from university IT departments, professors and colleagues are likely to be opened. Students’ guard is let down when the sender of the email is known.
When a convincing request is included, students often respond and have no idea that they have been scammed into revealing their login credentials or disclosing other sensitive information. All it takes is for one email account of a student to be compromised to start the process. Emails are then sent to that individual’s email address book. A number of those contacts respond. The same happens with their contacts and so on. Given that there are supposedly six degrees of separation between all individuals on the planet, it is easy to see how fast malware infections can spread and how multiple email accounts can be compromised rapidly.
University phishing scams have been increasing for some time, although the past few months have seen even more scams emails sent. Recently, the University of Connecticut sent warnings out to students following a spate of phishing scams. Some of those scams involved the impersonation of the University president. Students at the University of Georgia have also been targeted.
In the case of the latter, one student’s email account was compromised after she responded to a phishing email sent from UGA associate. The email did not arouse any suspicions because the contact was known. In the email the student was told that it was important for her to change her password. Failure to do so would result in her being locked out of her email account. She responded by clicking the link and changing her password. However, what she had done was disclose her old password and her new one to the attacker.
The attacker then used those credentials to set up a mail forwarder on the email account. The student only found out after querying why she was no longer receiving emails with the IT help desk. After investigating, the mail forwarder was discovered.
Other students were similarly targeted and their emails accounts were used to send out huge volumes of spam emails. It was only when spamming complaints were received about the compromised accounts that the problem was identified.
These university phishing scams are conducted for a wide range of nefarious purposes. Spamming and mail forwarders may cause limited harm, but that may not always be the case. Malware infections can result in serious financial harm to students and universities. Ransomware installations can occur after students respond to phishing campaigns, and those attacks can cost tens of thousands of dollars to resolve.
How to Protect Students and Networks from the Scammers
Since these phishing scams are now so hard to identify, training on email and cybersecurity best practices is no longer as effective as it once was. Technological solutions are therefore required to prevent emails from being delivered and to stop end users from being directed to malicious websites.
SpamTitan is an ideal spam filtering solution for universities. SpamTitan blocks 99.97% of spam emails and 100% of known malware. The solution is cost effective to install, easy to administer, and no additional hardware is required or any software updates necessary.
When used in conjunction with WebTitan – TitanHQ’s powerful web filtering solution –all attempts to visit malicious links and known phishing websites can be blocked.
Both solutions are available on a 30-day no obligation free trial. If you want to ensure your students and university networks are properly protected, contact the TitanHQ sales team today to register for the trials and discover the difference that each solution can make.
Sophisticated phishing emails and elaborate web-based scams are being used to target students at the University of Connecticut. The extent to which students have been targeted with these scams has prompted UConn Chief Information Officer and Provost for Information Technology to send a warning to all students to be on high alert.
A number of students at the university have received sophisticated phishing emails in recent months that appear to have been sent from University President Susan Herbst. Like many universities and other educational establishments, the email system is protected with a spam filter. The majority of spam and scam emails are filtered out, although some do make it through. If these emails are delivered to students, there is a high probability that they will be opened. After all, the messages do appear to have been sent from the University president.
The emails contain malicious attachments or links to websites that attempt to steal login information and the scam is sophisticated and highly convincing. Many students would be unaware that they have been scammed after disclosing their login credentials.
The same can be said of malware infections, which usually occur silently when a malicious website is visited. Criminals are attempting to install key-loggers that record all sensitive data entered on compromised computers.
These scams are intended to get students to disclose their bank account information, credit card data, or Social Security numbers and personal information. The attackers can then use this information for a wide range of nefarious purposes including identity theft.
Sophisticated Phishing Emails are the New Norm
Email scams of old were quite easy to identify. They often included many grammatical and spelling mistakes and included offers that sounded too good to be true. However, today, sophisticated phishing emails are the new norm and they can be very difficult to identify. Emails are sent from authority figures, are grammatically perfect, and the attackers use wide range of social engineering techniques to get victims to disclose sensitive data or take a particular action.
The scammers are also increasingly sending highly targeted emails. These ‘spear phishing’ emails use personal information unique to the recipient to add credibility. Information is often obtained from social media and professional networking sites.
One of the latest UConn email scams includes information about Blackboard Inc., the Mail Service used by UConn. The attachment has the title “Exclusive Important Announcement from President Susan Herbst.”
Warnings have been issued by email to all students alerting them to this scam and advising them to exercise caution when using email and surfing the Internet. Students have been told not to login on any websites that do not have a valid security certificate.
A Spam Filter and Web Filter in Tandem Offer Greater Protection Against Phishing Attacks
Users should always exercise caution when using email. Attachments from unknown senders should not be opened and links contained in emails from unfamiliar sources should not be visited. However, curiosity often gets the better of students and malicious links are often unwittingly visited.
For this reason, in addition to using an advanced spam filtering solution – such as SpamTitan – universities and other educational establishments should also employ a web filtering solution. The spam filter will block the vast majority of malicious messages. The web filter will ensure that malicious websites and infected webpages cannot be visited. In tandem, a spam filter and web filter will offer far greater protection against phishing attacks and malware/ransomware infections.
A W-2 Form phishing scam that has been extensively used to con businesses out of the tax information of their employees is now being used on educational institutions. School districts need to be on high alert as cybercriminals have them fixed in their cross-hairs.
Over the past few weeks, many school districts have fallen victim to the scammers and have disclosed the W-2 Form data of employees. Teachers, teaching assistants, and other members of school staff have had their Social Security numbers and earnings information sent to fraudsters. The data are used to file fraudulent tax returns in victims’ names.
At face value, the W-2 Form phishing scam is one of the simplest con-tricks used by cybercriminals. It involves sending an email to a member of the HR or payroll team asking for the W-2 Forms of all employees to be sent via email. Why would any employee send this highly sensitive data? Because the email appears to have been sent from individuals within the school district who have a genuine need for the information. This is why the W-2 Form phishing scam is so effective. In many cases, suspicions are not aroused for a number of days after the emails have been sent. By that time, fraudulent tax returns may have been filed in the names of all of the victims.
It is unknown how many school districts have been targeted to date with this W-2 Form phishing scam, although 10 school districts in the United States have announced that their employees have fallen for the scam this year and have emailed W-2 Form data to the attackers. In total, 23 organizations have announced that an employee has fallen for a W-2 Form phishing scam in 2017, and at least 145 organizations fell for similar scams last year.
Due to the number of attacks, the IRS issued a warning in early 2016 to alert all organizations to the threat. The increase in attacks in 2017 has prompted the IRS to issue a warning once again. While corporations are at risk, the IRS has issued a warning specifically mentioning school districts, as well as non-profits and tribal organizations.
The IRS warning explains how cybercriminals have started even earlier this year. While the W-2 Form phishing scam emerged last year, many attacks occurred relatively late in the tax season. Cybercriminals are attempting to get the data sooner this year. The sooner a fake tax return is filed, the greater the chance that a refund will be issued.
A variety of spoofing techniques are employed to make the email appear like it has come from the email account of an executive or other individual high up in the organization. In some cases, criminals have first compromised the email account of a board member, making the scam harder to identify.
This year has also seen a new twist to the scam with victims targeted twice. In addition to the W-2 Form scam, the victims are also subjected to a wire transfer scam. After W-2 Forms have been sent, a wire transfer request is made to the payroll department. Some organizations have been hit with both scams and have disclosed employees’ tax information and then made a wire transfer of several thousand dollars to the same attackers.
Protecting against these scams requires a combination of technology, training and policy/procedural updates. The first step for all organizations – including school districts – is to send an email to all HR and payroll staff warning them about these phishing scams. Staff must be made aware of the scam and told to be vigilant.
Policies and procedures should be updated requiring payroll and HR staff to authenticate any email request for W-2 Form data by telephone prior to sending the information.
An advanced spam filter – such as SpamTitan – can also greatly reduce the risk of W-2 Form scam emails being delivered to end users’ inboxes. Blocking suspicious emails will reduce reliance on training and user awareness of these scams. The spam filter will also be effective at blocking further scams and other malicious emails from being delivered.
Osiris ransomware is the latest variant of Locky. As with other versions of the ransomware, there is no free way of unlocking encrypted files if a viable backup of data does not exist.
Cybercriminals use a variety of techniques and attack vectors to spread malicious files such as ransomware and malware. Exploit kits are popular as they can be hidden on websites and used to silently probe visitors’ browsers for vulnerabilities in plugins such as Adobe Flash, Microsoft Silverlight, and Oracle Java. Those vulnerabilities are leveraged to download malware. Malvertising – malicious web adverts – are often used to direct users to these malicious webpages; however, all too often, links to these websites are sent via spam email.
The rise in malware and ransomware attacks over the past few years has prompted many organizations to start providing security awareness training to staff members. Employees are instructed never to click on a link contained in an email unless they are sure that it is genuine.
However, even with security awareness training, a great many employees inadvertently infect their computers with malware or accidentally download ransomware. One of the biggest problems is not malicious links in spam email but malicious attachments. Cybercriminals have increased the use of malicious file attachments in the last year, especially to infect end users with ransomware.
One of the biggest ransomware threats in the past 12 months has been Locky. Locky has been spread via exploit kits in the past, although spam email is now primarily used to infect users.
Office Macros Used to Infect Computers with Osiris Ransomware
The gang behind Locky frequently updates the ransomware, as well as the methods used to fool end users into installing the malicious file-encryptor. The latest Locky variant – Osiris ransomware – encrypts files and adds the .osiris extension to encrypted files.
Locky is commonly spread via malicious macros in Word documents. Typically, the malicious Word documents claim to be invoices, purchase orders, or notifications of missed parcel deliveries.
However, a recent campaign used to distribute the Osiris ransomware variant switches from .DOC files to Excel spreadsheets (.XLS). Recipients of the emails are told the Excel spreadsheet is an invoice. Opening the attached Excel spreadsheet will not automatically result in an Osiris ransomware infection if macros have not been set to run automatically. The user will be presented with a blank spreadsheet and a prompt to enable macros to view the content of the file.
Clicking on ‘Enable Content’ will launch a VBA script that downloads a Dynamic Link Library (DLL) file, which is automatically executed using the Windows file Rundll32.exe. That DLL file is used to download Osiris ransomware. Osiris ransomware encrypts a wide range of file types and deletes Windows Shadow Volume Copies, preventing the user from restoring the computer to the configuration before the ransomware was installed. The only option for recovery from an Osiris ransomware infection is to pay the ransom demand or to wipe the system and restore files from backups.
Protecting Networks From E-Mail-Based Ransomware and Malware Attacks
An advanced spam filtering solution such as SpamTitan can be used to block the vast majority of email-borne threats. SpamTitan performs a wide range of front line tests to rapidly identify spam email and prevent it from being delivered, including RBL, SPF, Greylisting and SMTP controls.
SpamTitan uses two enterprise-class anti-virus engines to scan for malicious attachments – Kaspersky Anti-Virus and ClamAV – to maximize detection rates.
Host-based tests are performed to examine mail headers, while the contents of messages are subjected to a Bayesian analysis to identify common spam signatures and spam-like content. Messages are also scanned for malicious links.
These extensive tests ensure SpamTitan blocks 99.97% of spam emails, preventing malicious messages from being delivered to end users. SpamTitan has also been independently tested and shown to have an exceptionally low false positive rate of just 0.03%.
If you want to keep your network protected from malicious spam emails and reduce reliance on employees’ spam detection abilities, contact the TitanHQ team today. SpamTitan is available on a 30-day free trial, allowing you to fully test the product and discover the difference SpamTitan makes at your organization before committing to a purchase.
Its tax season in the United States, which means the start of scamming season. W2 phishing scams and other tax-related email and telephone scams are rife at this time of year. Businesses need to be particularly careful. There have already been a number of victims of W2 phishing scams and the year has barely started.
2016 Saw a 400% Rise in Tax Season Phishing and Malware Incidents
Tax season in the United States runs from the start of January to April 15. It is the time of year when Americans calculate how much tax they need to pay from the previous financial year. It is also a busy time for cybercriminals. They will not be filing their own tax returns however. Instead they are concentrating on filing tax returns on behalf of their victims.
In order for tax refunds to be fraudulently filed, cybercriminals need information about their victims. Given the number of data breaches that have resulted in the theft of Social Security numbers in the past 12 months, 2017 could well be a record year for tax scams.
However, while past data breaches can provide cybercriminals with the information they need to file fraudulent tax returns, tax season usually sees a massive increase in phishing scams. The sole purpose of these scams is to get victims to reveal their Social Security numbers and the other personal information necessary to file tax returns.
Since the IRS started allowing Americans to e-file their tax returns, scammers had a new option for filing fraudulent tax returns. Phishing emails claiming to have been sent by the IRS request the recipients update their IRS e-file. A link is included in the emails for this purpose. Clicking on the link in the emails will not direct the recipient to the IRS website, but a spoofed version of the site. The information entered online is then used to e-file on behalf of the victims and the scammers pocket the tax refunds.
In 2016, the IRS reported a massive increase in phishing and malware incidents. These scams and malware infections increased by an incredible 400%. The massive rise in scams prompted the IRS to issue a warning to Americans about the scams, with the IRS confirming that it does not initiate contact with taxpayers by email to request personal or financial information.
2017 is likely to be no different. Until April 15, tax-related scams are likely to be rife. All Americans should therefore be wary and must exercise caution.
Tax Season Sees a Massive Rise in W2 Phishing Scams
While consumers are at risk. Businesses in the United States are also extensively targeted at this time of year. The scammers impersonate CEOs, CFOs, and other individuals with authority and make requests for W2 data and other financial information about employees. The requests can be highly convincing and each year many employees fall for these types of scams. The scammers are well aware that some employees would be nervous about questioning a request that has been emailed from their SEO or CFO.
It is difficult to determine how many attempted W2 phishing scams took place last year, but in the first quarter of 2016, at least 41 U.S companies reported that they were the victims of successful W2 phishing scams. Employees were sent email requests to send W2 data by return and they responded. By doing so, employees’ tax information was sent directly to the scammers’ inboxes.
2017 is not yet a month old, yet already W2 phishing scams have been reported. The week, the Tipton County Schools District in western Tennessee reported that it had fallen victim to one of these W2 phishing scams. The attacker had posed as the director of the schools and had requested W2 tax data on all employees. W2 form data were then emailed to the attacker by an employee.
A similar email phishing scam was reported to have been used to attack 8 school districts in Missouri, according to a report by the Missouri Department of Elementary and Secondary Education. In this case, only one of the eight school districts responded to the scam: An employee from the Odessa School District was fooled and send the tax details of the district’s employees to the attackers.
It is not only schools that are being targeted. A hospital in Campbell County, Wyoming was attacked this week. According to a Campbell County Health news release, a hospital executive was impersonated in this attack. A 66-year old hospital worker fell for the scam and emailed W-2 information about employees as requested.
Preventing successful W2 phishing scams requires a combination of technological solutions, employee training, and updates to policies and procedures. All employees with access to sensitive data must be advised of the risk and told to exercise caution. Policies should be introduced that require all email requests for employees’ tax information to be authenticated via telephone or other means. Organizations should also implement a robust spam filtering solution to prevent the scam emails from being delivered to employees’ inboxes.
However, if nothing is done to mitigate risk, 2017 is likely to be another record breaking year for the scammers.
You have no doubt heard of Locky and Cryptolocker, but what about Satan ransomware? Unfortunately, you may soon be introduced to this new ransomware variant. No matter where your organization is based, if you do not have a host of cybersecurity defenses to block ransomware attacks, this nasty file-encryptor may be installed on your network.
Satan Ransomware is being offered to any would-be hacker or cybercriminal free of charge via an affiliate model known as ransomware-as-a-service or RaaS. The idea behind RaaS is simple. Developers of ransomware can infect more computers and networks if they get an army of helpers to distribute their malicious software. Anyone willing to commit a little time to distributing the ransomware will receive a cut of any profits.
Ransomware authors commonly charge a nominal fee for individuals to participate in these RaaS schemes, in addition to taking a percentage of any ransomware payments that are generated. In the case of Satan ransomware, the developers offer RaaS totally free of charge. Anyone who wants to distribute the malicious software is free to do so. In exchange for their efforts they get to keep 70% of the ransom payments they generate. The remaining 30% goes to the ransomware authors. The gang behind the RaaS also offers higher percentages as infections increase as a reward for effort. All that is required to get started is to create a username and password. Access to the ransomware kit can then be gained.
What is alarming is how easy it is to participate in this RaaS scheme and custom-craft the malware. The gang behind the campaign has developed an affiliate console that allows the malware to be tweaked. The ransom amount can be easily set, as can the time frame for making payments and how much the ransom will increase if the payment deadline is exceeded.
Help is also offered with the distribution of the malware. Assistance is provided to make droppers that install the malware on victims’ systems. Help is offered to create malicious Word macros and CHM installers that can be used in spam email campaigns. Help is also offered to encrypt the ransomware to avoid detection. Even multi-language support is provided. Any would-be attacker can craft ransom demands in multiple languages via the RaaS affiliate console.
Satan ransomware performs a check to determine if it is running on a virtual machine. If it is, the ransomware will terminate. If not, it will run and will search for over 350 different file types. Those files will be locked with powerful encryption. File extensions are changed to. stn and the file names are scrambled to make it harder for victims to identify individual files. The ransomware will also wipe all free space on the hard drive before the ransom demand is dropped onto the desktop.
There is no decryptor for Satan ransomware. Recovery without paying the ransom will depend on organizations being able to restore files from backups. Since the ransomware also encrypts backup files, those backups will have to be in the cloud or on isolated devices.
RaaS is nothing new, but what is so worrying about Satan ransomware is how easy it has been made for affiliates. Next to no skill is required to run a ransomware campaign and that is likely to see many individuals take part in the RaaS program.
Take a look at the list of the worst passwords of 2016 and you would be forgiven for thinking you are looking at the worst password list for 2015. Or 2014 for that matter. Little appears to have changed year on year, even though the risk to network and data security from the use of weak passwords is considerable.
Every year, SplashData compiles a list of the worst 25 passwords of the year. 2017 is the sixth consecutive year when the company has produced its list. Given the number of largescale data breaches that occurred in 2016, it would be reasonable to assume that organizations would take a proactive step and introduce restrictions on the passwords that can be used to secure corporate networks, computers, and email accounts. Many still don’t. It is still possible for end users to use passwords with no capital letters (or no letters at all), no symbols, and consecutive number strings are still permitted.
Should a hacker attempt a brute force attack – attempting to gain access using an automated system that guesses potential password combinations – a weak password would allow access to be gained incredibly quickly.
If any of the passwords from the list of the worst passwords of 2016 were used, it would be like there was no password required at all. How quickly can a hacker crack one of these passwords? According to Random ize, most of the passcodes on the list of the worst passwords of 2016 could be guessed in under a second. BetterBuys is more pessimistic, claiming most could be guessed in about 0.25 milliseconds.
To compile its list, SplashData scraped data dumps that included passwords. 2016 saw a great deal of data published on darknet sites by cybercriminals that had succeeded in breaching company defenses. For its list, SplashData analyzed more than 5 million credentials, most of which came from data breaches in North America and Europe.
The most commonly used password in 2016 was 123456, as it was in 2015. Password was the second most common password in 2016. There was no change in the top two worst passwords even though cybersecurity awareness has increased. As we saw last year, even John Podesta, chairman of Hillary Clinton’s 2016 presidential campaign, allegedly used a variation of the word password to “secure” his accounts. That poor choice clearly demonstrated that the use of poor passwords offers very little protection against hackers.
The worst password of 2016 was used on an incredible 4% of user accounts, and almost as many individuals used password. SplashData says around 10% of individuals use a password that was on the list of the 25 worst passwords of 2016.
Some individuals have got clever, or so they think. They use a variation of ‘password’. However, password1 and passw0rd are barely any better. The small change would not delay a hacker by any noticeable degree. Hackers are well aware of the use of numbers to replace letters and other techniques to make passwords more secure, such as adding a digit to the end of a word. – Password1 for example.
SplashData’s List of the Worst Passwords of 2016
If you were wondering how the list has changed year on year, take a look at last year’s list and you will see a number of similarities.
List of the Worst Passwords of 2015
In order to make it harder for hackers, complex passwords should be chosen. Passwords should be at least 9 characters, contain numbers, letters (lower and upper case), and symbols. They should not be words, although pass phrases of 15 or more characters would be acceptable. Passwords should also be changed frequently. The use of a password manager is recommended to ensure that these complex passwords can be remembered.
A spate of Gmail phishing attacks has hit the headlines this week. While the phishing scam is not new – it was first identified around a year ago – cybercriminals have adopted the campaign once more. The phishing emails are used to obtain Gmail login credentials are highly convincing,. A number of different tactics are used to evade detection, some of which are likely to fool even the most security aware individuals.
The Gmail phishing attacks start with an email sent to a Gmail account. Security aware individuals would be wary about an email sent from an unknown source. However, these attacks involve emails sent from a contact in the target’s address book. The email addresses are not masked to make them look like they have come from a contact. The email is actually sent from a contact’s account that has already been compromised.
Email recipients are far more likely to open emails sent from their contacts. Many people do not perform any further checks if the sender is known to them. They assume that emails are genuine solely from the source.
However, that is not the only technique used to fool targets. The attackers also use information that has been taken from the contact’s sent and received messages and add this to the email. An screenshot of an attachment or image that has already been included in a previous email between the contact and the target is included in the message. Even if the target is slightly suspicious about receiving an email, these additional touches should allay concern.
The aim of the email is to get the target to click on the image screenshot. Doing so will direct them to a Gmail login page where the target is required to sign in again. While this is perhaps odd, the page that the user is directed to looks exactly as it should. The page exactly mirrors what the user would normally expect.
Checking the website address bar should reveal that the site is not genuine; however, in this case it does not. The address bar shows the site is secure – HTTPS – and the web address includes accounts.google.com. The only sign of the scam is the inclusion of ‘data.text/html’ before accounts.google.com in the address bar.
Entering in account credentials will send that information directly to the attackers. The response is lightning quick. Account credentials are immediately used to log into the victim’s account. Before the victim even suspects they have been scammed, the entire contents of their Gmail account could be stolen, including sent and received emails and the address book. Contacts will be subjected to these Gmail phishing attacks in the same fashion.
Google is aware of the scam and is currently developing mitigations to prevent these types of attacks from occurring. In the meantime, however, users of Gmail should be particularly wary. Many users just glance at the address bar and look for the HTTPS and the web address. Failure to very carefully check the address bar and protocol before entering login credentials can – and certainly will in this case – result in the user’s account being compromised. Gmail accounts contain a huge amount of personal information. Information that could be used in future spear phishing attacks, extortion attempts, and other scams on the target and their contacts.
A new ransomware variant – Spora ransomware – has been identified by Emisoft which features a new twist. Victims have a wide range of their files encrypted as with other forms of file-encrypting malware, but they are given the option of preventing future ransomware attacks if they pay up.
The attackers would not be able to prevent attacks performed by other gangs – with other ransomware variants – although if the attackers can be believed, victims would only be attacked with Spora once. That is, if they choose the more expensive option of ‘Spora immunity’ rather than just paying to unlock the encryption.
The bad news for the victims is that payment will be required to unlock the infection if a viable backup of data does not exist. At present, there is no decryptor for Spora.
Emisoft reports that the encryption used is particularly strong, and even if a decryptor was developed, it would only be effective against a single user due to the complex method of encryption used – a combination of AES and RSA keys using the Windows CryptoAPI.
In contrast to many ransomware variants that communicate with a command and control server, Spora ransomware does not receive any C&C instructions. This means that files can be encrypted even if the computer has no Internet connection.
The authors have also not set a fixed ransom amount, as this depend on the ‘value’ of the encrypted data. The ransom payment will be set based on who the user is and the files that have been encrypted. Before files are encrypted, a check is performed to see who has been infected. Encrypted files are sorted based on extension type and the information is combined into the .KEY file along with information about the user. The .key file must be supplied in the payment portal. An HTML file is also created on the desktop with details of how payment can be made.
The ransomware is being spread via spam email. Infection occurs when an email recipient opens the infected attachment. The attached file appears to be a genuine PDF invoice, although it includes a double file extension which masks the fact it is actually a .HTA file. Infection occurs via JScript and VBScript contained in the file.
Opening the file launches a Wordpad file which displays an error message saying the file is invalid. In the background, the ransomware will be encrypting data.
Emisoft reports that the ransomware is slick and appears highly professional. Typically, the first versions of ransomware invariably contain multiple flaws that allow decryptors to be developed. In this case, there appear to be none. Spora ransomware also tracks infections via different campaigns. The information will likely be used to determine the effectiveness of different campaigns and could be used to direct future attacks.
The slick design of the HTML ransom note and the payment portal show considerable work has gone into the creation of this new ransomware. Emisoft suggests that Spora ransomware has been developed specifically for the ransomware-as-a-service market.
Prevention remains the best defense. Since Spora ransomware is spread via spam email, blocking malicious messages is the best defense against infection, while recovery will only be possible by paying the ransom demand or restoring data from a backup.
A Barts Health malware attack forced the shutdown of hospital IT systems on Friday last week as the UK NHS Trust attempted to limit the damage caused and contain the infection.
Barts Health is the largest NHS Trust in the United Kingdom, operating six hospitals in the capital: Mile End Hospital, Newham University Hospital, St Bartholomew’s Hospital, The London Chest Hospital, The Royal London Hospital, and Whipps Cross University Hospital.
The Barts Health malware attack occurred on Friday 13, 2016. Given the number of ransomware attacks on healthcare organizations in recent months, rumors started to quickly circulate that this was another healthcare ransomware attack.
A statement was released on Friday claiming the Trust had experienced an ‘IT attack,’ and that as a precaution, a number of drives were taken offline to prevent the spread of the infection. The type of malware that had been installed was not known, although the NHS trust did say in its statement that it did not believe ransomware was involved.
Multiple drives were shut down following the discovery of the malware including those used by the pathology department, although patient data were unaffected and the NHS Trust’s Cerner Millennium patient administration system remained operational, as did the systems used by the radiology department.
Today, Barts Health reports that all of its systems are back online and the infection has been removed. Medical services for patients were not affected, although Barts Health said due to the need for requests to be processed manually, it may take a few days for the pathology department to deal with the backlog.
Barts Health also reiterated that at no point were patient medical records compromised. No mention has been made about how the malware was installed and the type of malware involved was not announced. However, the Barts Health malware attack involved a form of malware that had not previously been seen and was a ‘Trojan Malware.’
The Trust said “whilst it had the potential to do significant damage to computer network files, our measures to contain the virus were successful”.
Ransomware Attacks on UK Hospitals
In November last year, the Northern Lincolnshire and Goole NHS Trust was attacked with ransomware which resulted in IT systems at three hospitals being crippled. As a result of that attack, the NHS Trust was forced to cancel 2,800 operations and appointments while the infection was removed and systems restored. The majority of IT systems had to be taken offline, hence the major disruption to medical services.
While Locky and Samas have been used extensively in attacks on U.S. hospitals, the Northern Lincolnshire and Goole NHS Trust ransomware attack involved a ransomware variant known as Globe2 – A relativity new variant that was first identified in August 2016.
Globe ransomware has been spread primarily via spam email and malicious file attachments. Opening the file attachment triggers the downloading of the ransomware. As with other ransomware variants, the attachments appear to be files such as invoices or medical test results.
Malicious links are also used to spread ransomware infections. Clicking a link directs users to malicious websites where ransomware is automatically downloaded. Fortunately for organizations attacked with Globe ransomware, a decryptor has been developed by Emisoft, which is available for free download.
However, relatively few ransomware variants have been cracked. Recovery can also take time resulting in considerable disruption to business processes. Ensuring backups of all critical data are regularly made will ensure that files can be recovered without giving in to attackers’ demands.
Preventing malware and ransomware attacks requires multi-layered defenses. Since many infections occur as a result of infected email attachments and links, organizations should employ an advanced spam filtering solution such as SpamTitan. SpamTitan has been independently tested and shown to block 99.97% of spam email. SpamTitan will also block 100% of known malware.
A Los Angeles Valley College ransomware attack has resulted in file systems being taken out of action for seven days and considerable costs being incurred to resolve the infection.
Attackers succeeded in taking control of one of the college’s servers on December 30, 2016. When staff returned after the Christmas break they discovered the computer system to be out of action and essential files locked with powerful encryption.
The attackers had succeeded in locking a wide range of file types on network drives and computers. Unfortunately, the college was unable to recover the files from a backup. Administrators therefore faced a tough decision. To try to recover from the attack without paying the ransom and risk file loss or to give in to the attacker’s demands and pay for the keys to unlock the encryption.
Los Angeles Valley College Ransomware Attack Nets Criminal Gang $28,000
Due to the extent of the infection and the number of devices affected, the ransom payment was considerable. The attackers set the price at $28,000 for the decryption keys. The ransom demand was high but the college had little in the way of options.
The ransom note that was loaded onto the college’s X-drive said if the ransom was not paid within 7 days, the unique keys to unlock the encryption would be permanently deleted. That would likely have resulted in all of the locked files being permanently lost.
The college enlisted help from cybersecurity experts to determine the likelihood of files being recovered without paying the ransom. However, college administrators were advised to dig deep and pay the attackers for the key. While there is no guarantee that paying the ransom would result in viable keys being supplied, the college’s cybersecurity experts said there was a high probability of data recovery if the ransom was paid and a very low probability of data being recovered if the ransom demand was ignored. The likely cost of resolving the infection without paying the ransom was also estimated to be higher than attempting to remove the infection. The decision was therefore made to pay the attackers in Bitcoin as requested.
The attackers made good on their promise and supplied the keys to unlock the data. Now IT staff must apply those keys and remove the encryption on the server, network drives, and the many infected computers. Fortunately for the college, a cyber insurance policy will pay out and cover the cost of the ransom and resetting systems. However, there will be other costs that need to be covered, which will must be paid by the district.
Recovery from the Los Angeles Valley College ransomware attack will not be a quick and simple process, even though the decryption keys have been supplied by the attackers. The district’s Chief Information Officer Jorge Mata said “There are often a lot of steps where there’s no coming back, and if you pick the wrong path, there’s no return.” The recovery process therefore requires care and precision and cannot be rushed. The process could well take a number of weeks. The main priority is to recover the email system. Other systems and devices will then be methodically restored.
Los Angeles Valley College Ransomware Attack One of Many Such Attacks on Educational Institutions
The Los Angeles Valley College ransomware attack has hit the headlines due to the extent of the infection and high ransom demand, but it is one of many such attacks to have occurred over the past 12 months. Educational institutions have been heavily targeted by attackers due to the value of college and school data. Educational establishments cannot risk data loss and are therefore likely to pay the ransom to regain access to files.
In the past few months, other educational institutions in the United States that have been attacked with ransomware include M.I.T, University of California-Berkeley, and Harvard University as well as many K-12 schools throughout the country. Figures from Malwarebytes suggest that 9% of ransomware attacks targeted educational establishments.
How Can Educational Institutions Protect Against Ransomware Attacks?
There are a number of steps that educational institutions can take to reduce the risk of ransomware attacks and ensure that recovery is possible without having to resort to paying a ransom. The most important step to take is to ensure that all data is backed up regularly, including the email system. Backups should be stored on air-gapped devices, not on network drives. A separate backup should be stored in the cloud.
However, backups can fail and files can be corrupted. It is therefore important that protections are implemented to prevent ransomware from being delivered via the two most common attack vectors: Email and the Internet.
Email is commonly used to deliver ransomware or malicious code that downloads the file-encrypting software. Preventing these malicious emails from being delivered to staff and students’ inboxes is therefore essential. An advanced spam filter such as SpamTitan should therefore be installed. SpamTitan blocks 99.97% of spam emails and 100% of known malware.
To protect against web-borne attacks and prevent exploit kit activity and drive-by downloads, schools and colleges should use a web filter such as WebTitan. WebTitan uses a variety of methods to block access to malicious webpages where malware and ransomware is downloaded. WebTitan can also be configured to prevent malicious third-party adverts from being displayed. These adverts – called malvertising – are commonly used to infect end users by redirecting their browsers to websites containing exploit kits.
For further information on SpamTitan and WebTitan, to find out more about how both anti-ransomware solutions can prevent infection, and to register for a free 30-day trial of both products, contact TitanHQ today.
Apple malware infections are relatively rare, although Mac users should not get complacent. New threats do appear from time to time and cybercriminals do target Mac users. This month another malware variant has been discovered – a type of screen locker – that is linked to a tech support scam and its Mac users that are being targeted.
The attack starts when the user clicks on a malicious link in a spam email message, although links on social media sites could also be used to direct end users to the malicious website where the attack occurs. When the malicious website is visited, malicious code on the site causes a denial-of-service attack which freezes the device as its memory is consumed.
The method of locking the computer depends on the version of OS X installed on the device. On older OS X versions, a visit to the malicious website will trigger the creation of multiple emails until the Macs memory is overloaded. The emails have the subject “Warning: Virus Detected”. Since no memory is available, users will not be able to launch any other programs. The email messages are only created as drafts – they are not delivered – although this will be sufficient to freeze the device.
Additionally, a message is loaded into the draft folder containing a phone number to call to have the virus removed. While the message appears to have been sent by Apple, this is part of the scam. This is how the attackers make their money. Removal of the infection will require payment. The attackers appear to be after credit card numbers.
The second variant of the attack affects newer OS X versions. Rather than trigger draft emails, a similar style of attack occurs via iTunes. Multiple iTunes windows are launched, similarly using up the Macs memory. As with the first attack, a message also appears with a telephone number to call to remove the infection.
These tech support scams may not involve any downloaded malware, although responding to this type of scam and providing credit card details will result in multiple payments being taken until the card provider blocks the card or credit limits are reached.
Tech support scams such as this frequently target Windows users via Firefox, IE, Edge or Chrome browsers. Multiple browser windows are launched with a tech support number displayed. A call is required to unlock the infection.
These browser-locking attacks are relatively common. Only last month, Symantec identified a new campaign which locks the screen on Windows computers and displays a browser window detailing imagery from the police force of the country where the user is based – Most of the attacks occurred in the US (FBI) and Europe (Europol).
Users are advised that they have been caught engaging in illegal online activity, usually related to pornography or child abuse. A code must be obtained from the police department to unlock the screen. A phone number is supplied which the user must call to make payment. The attackers rely on victims’ fear and embarrassment to obtain payment.
Research conducted by the anti-phishing training company PhishMe has shown a worrying increase in phishing attacks in 2016 and has highlighted the importance of taking steps to reduce the risk of spear phishing attacks.
Unfortunately, cybercriminals are becoming much more adept at crafting highly convincing spear phishing campaigns. A wide range of social engineering techniques are used to fool employees into responding to the emails and the campaigns are becoming much harder to identify.
Unfortunately responding to these emails can result in email and network credentials being compromised, malware and ransomware being installed on corporate networks, and sensitive data being emailed to the attackers.
The study of phishing attacks in 2016 showed attacks increased by 55% year on year. PhishMe research shows that out of the successful data breaches in 2016, 90% started with a spear phishing email.
In 2016, business email compromise attacks rose by an incredible 1300%, while ransomware attacks increased 400%. Cybercriminals are attacking companies with a vigor never before seen and unfortunately many of those attacks have been successful.
The figures from the U.S. Department of Health and Human Services’ Office for Civil Rights – which tracks U.S. healthcare data breaches – show that 2016 was the worst ever year on record for healthcare data breaches. At least 323 breaches of more than 500 records occurred in 2016. Undoubtedly many more breaches have yet to be discovered.
Cybercriminals and hackers have employees firmly in their crosshairs. Unfortunately, employees are easy targets. A recent survey conducted by cybersecurity firm Avecto showed that 65% of employees are now wary about clicking on links emailed to them by strangers. Alarmingly, that means 35% are not.
The same survey showed that 68% of respondents have no concerns about clicking on links sent by their friends and colleagues. Given the extent to which email addresses and passwords have been compromised in the last year, this is incredibly worrying. 1 billion Yahoo accounts were breached and 117 million email addresses were compromised as a result of the LinkedIn breach. Gaining access to email accounts is not a problem for cybercriminals. If those accounts are used to send spear-phishing emails, the chance of links being clicked are very high. Unfortunately, all it takes is for one email account to be compromised for access to a network to be gained.
The risk of spear phishing attacks was clearly demonstrated in 2015 when the largest ever healthcare data breach was discovered. 78.8-million health plan members’ records were stolen from Anthem Inc. That breach occurred as a result of an employee of one of the insurer’s subsidiaries responding to a spear phishing email.
Anthem Inc., is the second largest health insurer in the United States and the company spends many tens of millions of highly complex cybersecurity defenses. Those multi-million dollar defenses were undone with a single email.
Organizations must take steps to reduce the risk of speak phishing attacks. Unfortunately, there is no single solution to eradicate risk. A multi-layered defense strategy is required.
An advanced anti-spam solution is essential to prevent the vast majority of spam and phishing emails from being delivered to end users. SpamTitan for example, blocks 99.97% of spam email and 100% of known malware.
Employees must be trained and their training must be tested with phishing exercises. Practice really does make perfect when it comes to identifying email scams. Endpoint defenses should also be employed, along with anti-virus and antimalware software.
The risk of spear phishing attacks will increase again in 2017. Doing nothing to improve cybersecurity defenses and combat the spear phishing risk could prove to be a very costly mistake.
Last month, L.a. County reported one of the largest phishing attacks in the United States. A single phishing campaign directed at Los Angeles County employees saw an incredible 108 individuals fall for the scam. Each employee that responded to the campaign inadvertently divulged their email credentials to the attacker. 108 email accounts were compromised as a result of the one phishing campaign.
While it is not known whether the individual behind the campaign successfully retrieved any data from L.A County email accounts, the compromised email accounts were a treasure trove of sensitive information. The email accounts contained the sensitive information of more than 750,000 individuals.
While the announcement of the phishing attack was only made in December, the actual incident occurred on May 13, 2016. In contrast to the phishing and spam email campaigns of old that contained numerous spelling mistakes, grammatical errors, and bordered on the unbelievable, this campaign was expertly crafted. The attacker used realistic text and images, hence the reason why such a large number of employees fell for the scam.
Fortunately for L.A. County, the phishing attack was identified promptly – within 24 hours – therefore limiting the damage caused. A detailed forensic investigation revealed that 756,000 individuals had their sensitive information – including Social Security numbers and protected health information- exposed as a result of the attack.
There was further good news. The lengthy investigation confirmed the identity of the attacker, a Nigerian national – Austin Kelvin Onaghinor. A warrant has been issued for his arrest. Bringing that individual to justice may be another matter. Extraditing foreign nationals to the United States can be a difficult and long winded process. However, L.A District Attorney Jackie Lacey has vowed to “aggressively to bring this criminal hacker and others to Los Angeles County, where they will be prosecuted to the fullest extent of the law.”
Phishing attacks on this scale are unfortunately not that rare. Cybercriminals are becoming much better at crafting convincing emails and gaining access to corporate email accounts. All too often, the phishing attacks are not identified quickly, giving criminals plenty of time to exfiltrate data from compromised accounts. Many phishing campaigns are conducted to obtain network credentials and other information that can be used to gain a foothold in corporate networks. Once access is gained, all manner of nefarious activities take place.
This L.A. County phishing scam clearly demonstrates that employees are the weakest link in the security chain, which is why cybercriminals are committing more time and effort into phishing attacks. It is far easier to compromise an email account or gain access to a network if an employee provides their login credentials than attempting to find a chink in advanced cybersecurity defenses.
Protecting against phishing attacks requires an advanced spam filtering solution. Without such a solution in place, organizations have to rely on employees identifying emails as malicious. Something which is becoming much harder to do as cybercriminals perfect their social engineering techniques.
Blocking phishing emails and preventing them from being delivered to inboxes is the single-most effective solution to counter the phishing threat. Along with staff anti-phishing training and anti-phishing exercises, organizations can mount a defense against such attacks and avoid the not inconsiderable mitigation costs. Providing credit monitoring and identity theft protection services to 756,000 individuals is a sizeable cost for any organization to absorb.
2016 was a particularly bad year for data breaches. A large number of huge data breaches from years gone by were also discovered in 2016.
The largest breach of 2016 – by some distance – affected Yahoo. The credentials of more than 1 billion users were obtained by the gang behind the attack. A massive cyberattack on MySpace was discovered, with the attackers reportedly obtaining 427 million passwords. 171 million vk.com account details were stolen, including usernames, email addresses, and plaintext passwords. 2016 also saw the discovery of a massive cyberattack on the professional networking platform LinkedIn. The credentials of more than 117 million users were stolen in the attack. Then there was the 51-million iMesh account hack, and 43 million Last.fm accounts were stolen….to name but a few.
The data stolen in these attacks are now being sold on darknet marketplaces to cybercriminals and are being used to commit a multitude of fraud.
One of the biggest threats for businesses comes from business email compromise (BEC) scams. BEC scams involve an attacker impersonating a company executive or vendor and requesting payment of a missed invoice. The attacker sends an email to a member of the accounts team and requests payment of an invoice by wire transfer, usually for several thousand dollars. All too often, even larger transfers are made. Some companies have lost tens of millions of dollars to BEC fraudsters.
Since the email appears to have been sent from a trusted email account, transfer requests are often not questioned. Cybercriminals also spend a considerable amount of time researching their targets. If access to corporate email accounts is gained, the attackers are able to look at previous emails sent by the targets and copy their writing style.
They learn about how transfer requests are usually emailed, the terms used by each company and executive, how emails are addressed, and the amounts of the transfers that have been made. With this information an attacker can craft convincing emails that are unlikely to arouse suspicion.
The scale of the problem was highlighted earlier this year when the FBI released figures as part of a public awareness campaign in June. The FBI reported that $3.1 billion had been lost as a result of BEC scams. Just four months earlier, the losses were $2.3 billion, clearly showing that the threat was becoming more severe.
This year also saw a huge increase in W-2 scams in the United States. W-2 data is requested from HR departments in a similar manner to the BEC scams. Rather than trying to fool email recipients into making fraudulent transfers, the attackers request W-2 data on employees in order to allow them to file fraudulent tax returns in their names. The IRS issued a warning earlier this following a huge increase in W2 attacks on organizations in the United States.
Companies large and small were targeted, with major attacks conducted on Seagate, Snapchat, Central Concrete Supply Co. Inc, and Mainline Health. Between January and March 2016, 55 major – and successful – W-2 scams were reported to the IRS.
Attackers do not even need email account passwords to conduct these attacks. Email addresses of CEOs and executives can easily be spoofed to make them appear that they have been sent internally. The sheer number of stolen email addresses – and in many cases also passwords – makes the threat of BEC and W-2 attacks even greater. Security experts predict next year will be even tougher for businesses with even more cyberattacks than in 2016.
Improve Your Defenses Against Email-Borne Threats in 2017
Reducing the risk of these attacks requires multi-layered defenses. It is essential that all employees authorized to make corporate bank transfers receive training on email security and are alerted to the risk of BEC scams. Policies should be introduced that require bank transfer requests to be authorized by a supervisor and/or authenticated by phone prior to the transfer being made.
All employees should be instructed to use strong passwords and never to share work passwords anywhere else online. Many employees still use the same password for work as for personal accounts. However, if one online platform is breached, it can give the attackers access to all other platforms where the same password has been used – including corporate email accounts.
Organizations should also implement controls to block phishing and spear phishing attacks. Blocking phishing emails reduces reliance on the effectiveness of anti-phishing training for employees.
SpamTitan is a highly effective tool for blocking malicious spam emails, including phishing and spear phishing emails. SpamTitan uses a range of techniques to identify spam and scam emails including Bayesian analyses, greylisting and blacklists. SpamTitan incorporates robust anti-malware and anti-phishing protection, as well as outbound email scanning to block spam and scams from corporate email accounts. SpamTitan is regularly tested by independent experts and is shown to block 99.97% of spam email with a low false positive rate of just 0.03%.
2016 may have been a particularly bad year for data breaches and the outlook doesn’t look good for 2017, but by taking affirmative action and implementing better defenses against email-borne attacks, you could ensure that your company is not added to the 2017 list of data breach and scam statistics.
How do spam filters block spam email? Spammers are constantly adapting their strategies to bypass spam filters and deliver more malicious messages to corporate users’ inboxes, so how do antispam solutions keep pace and block these annoying and often malicious messages?
Many anti-spam solutions rely on blacklists to identify spammers’ email addresses and IP addresses. Once a spammer’s IP address has been identified, it is added to a global spam blacklist.
Antispam solutions check incoming messages against these blacklists. As soon as an IP address is blacklisted, any email sent from that IP address is automatically marked as spam and will be deleted or quarantined.
Spammers are aware that the lifespan of an email address for spamming is short. As anti-spam solutions have improved, the time delay between an email address being used for spamming and it being added to a global spam blacklist has reduced considerably. Whereas spammers used to be able to use an email address for weeks before it was identified by anti-spam solutions and blacklisted, now the lag has been reduced to days or even hours.
Spammers therefore have a very small window of opportunity to use email addresses and mail servers for spamming before they are detected and blacklisted.
Snowshoe and Hailstorm Spam Tactics to Get Messages to Inboxes
Spammers have attempted to increase the timespan for using email addresses using a number of methods, the most common being conducting snowshoe campaigns. This tactic involves sending out very low numbers of spam email messages from each IP address. If spam email volume is kept low, there is less chance of the IP address being recognized as used for spamming. To ensure sufficient numbers of messages are sent, spammers use millions of IP addresses. Even using this tactic will not allow the spammers to conduct their activities undetected for very long. Spammers therefore need to constantly add new IP addresses to their spamming networks to enable them to continue conducting their campaigns.
Snowshoe tactics are now widely used and the technique is highly effective, although a new tactic has recently been uncovered that is referred to as hailstorm spamming. Hailstorm spam campaigns similarly involve extremely large numbers of IP addresses, yet they are used very briefly and intensely. Rather than trying to stay under the radar, the spammers use those IP addresses to send huge volumes of messages very quickly.
Researchers at Cisco Talos recently analyzed both tactics and determined that the DNS query volume from a typical snowshoe campaign involved around 35 queries an hour. A hailstorm spam campaign involved around 75,000 queries an hour. The snowshoe campaign would continue at that rate for many hours, whereas the hailstorm spam campaign spiked and then fell to next to nothing. Hailstorm campaigns can therefore be used to deliver huge volumes of emails before the IP addresses are added to blacklists.
How do Spam Filters Block Spam Email?
How do spam filters block spam email when these tactics are used? Snowshoe and hailstorm spam campaigns are effective against antispam solutions that rely on blacklists to identify spammers. Only when an IP address is added to a blacklist will the spam email messages be blocked. Advanced spam solutions offer far greater protection. Blacklist are still used, although a number of other methods of spam detection are employed.
Conducting a Bayesian analysis on all incoming spam email messages greatly reduces the volume of spam email messages that are delivered to end users. A Bayesian analysis involves reading the contents of a message and assessing the words, phrases, headers, message paths, and CSS or HTML contained in the message. While scoring, messages based on content can be effective, Bayesian spam filters also learn as they go. They constantly compare spam emails to legitimate emails and build up the range of spam characteristics that are checked. As spammers change tactics, this is picked up by a Bayesian spam filter and spam messages continue to be filtered.
The use of greylisting is also important in a spam filter. There will be some messages that pass all of the checks and some that monumentally fail. Categorizing these messages as genuine or spam is therefore simple. However, there is a sizeable grey area – messages that could potentially be spam.
If all of these messages are blocked, many genuine emails would not be delivered. If they are all allowed, many spam messages would get through. This would result in poor catch rates or extremely high false positive rates. Greylisting helps in this regard. Suspect messages are returned to the sender’s mail server and a request is made for the message to be resent. Since spammers mail servers are typically constantly busy, these requests are either ignored or they are not dealt with promptly. The time it takes for the message to be resent is therefore a good indicator of whether the message is genuine.
SpamTitan – Keep Your Inboxes Spam Free
SpamTitan uses a range of methods to identify spam emails including blacklists, Bayesian analyses, and greylisting. These checks ensure that more spam emails are identified and blocked, even if IP addresses have yet to be added to spam blacklists. This makes SpamTitan highly effective, even when spammers use snowshoe and hailstorm spamming tactics. By using a range of methods to identify spam emails, spam detection rates are improved and false positives are reduced.
SpamTitan is independently tested every month to determine its effectiveness. SpamTItan is consistently verified as capable of blocking more than 99.97% of spam emails, with a false positive rate below 0.03%.
If you want to find out the difference that SpamTitan makes to the volume of spam messages that are delivered to your employees’ inboxes, why not take advantage of our free, no-obligation 30-day trial. You can implement the solution quickly, evaluate its effectiveness, and you will receive full customer and technical support for the duration of the trial.
To find out more about SpamTitan and the difference it can make to your business, call the TitanHQ sales team today.
All antispam solutions and spam filters check inbound messages for common spam signatures; however, it is also important to choose a solution that performs outbound email scanning. Outbound email scanning ensures spam emails, or emails containing malware, are not sent from an organization’s email accounts or domains.
Your employees would be unlikely to knowingly use their corporate email accounts to send spam emails, but malware infections can allow cybercriminals to gain access to email accounts and use them to send high volumes of spam email messages. Cybercriminals could also compromise email accounts and use an organization’s domain to send malware and ransomware to clients and customers.
Should this happen, it can have a seriously detrimental effect on an organization’s reputation and may result in corporate email accounts or an entire domain being blacklisted.
Blacklists are maintained by a number of organizations – spamhaus.org for example. Internet Service Providers (ISPs), web servers, and antispam solutions check these blacklists before allowing emails to be delivered to end users. If a particular IP address, email account, or domain is listed in one of the blacklist databases, emails sent from the domain, IP address or email account will not be delivered.
Blacklists are updated in real-time and contain many millions of blocked domains and email addresses that have been reported as having been used for unwanted activity such as the sending of spam emails. If emails are sent from a blacklisted account, domain, or IP address those emails will either be directed to a quarantine folder, deleted, or will simply be rejected.
If a business has its domain added to a spam blacklist important emails to clients and customers will not get through. This can prove costly, as real estate firm Keller Williams has recently discovered.
Blacklisted Domains and Email Accounts Can Prove Costly for Businesses
Over the past few days, email messages sent from the kw.com domain used by Keller Williams have been rejected by AOL. Yahoo has been blocking emails from the kw.com account for some time. The problem appears to be the addition of the kw.com domain to spam blacklists.
If a Keller Williams real estate agent needs to send an email to a customer who has an AOL or Yahoo account, it will not be delivered. Agents have therefore been forced to get customers to open Google email accounts in order to send online paperwork or documents requiring e-signatures.
The issue also affects online paperwork sent via the transaction management software program Ziplogix, with one Keller Williams agent also claiming Dotloop is also affected. Some agents at Keller Williams have reportedly had to send important paperwork for listings and sales via personal email accounts to ensure emails are delivered.
The AOL website explains that when domains have been flagged as being abusive, the server will be temporarily blocked until the spamming stops. Until a domain is removed from its blacklist, AOL account holders will be prevented from receiving emails from the blocked domain. Removing the domain from the blacklist can take up to a week.
Removing a domain from the 80+ commonly used spam blacklists can be a time-consuming task; furthermore, if spam emails are sent from the account again, the domain will simply be added to the blacklists once more.
Outbound Email Scanning Prevents the Blacklisting of an Organization’s Domain
Unlike many third-party antispam solutions, SpamTitan checks incoming email messages for spam signatures as well as performing outbound email scanning. If an email account has been compromised and is being used to send spam emails, if malware is sending spam, those messages will be blocked and will not be sent. Outbound email scanning is an important protection that will prevent an organization’s domain or email accounts from being used to send spam or malware.
Organizations can therefore avoid the embarrassment and reputation damage that results from being suspected as engaging in spamming or malware delivery. They can also rest assured that in addition to blocking 99.97% of inbound email spam, their domains and email accounts will not be added to spam blacklists.
‘Tis the season to be jolly, although ‘tis also the season to be infected with malware. The holiday season is an annual highlight for cybercriminals. Holiday season malware infections are to be expected as cybercriminals increase their efforts and try to infect as many users with malware as possible.
Malware is an ever-present threat, but the increase in online activity in the run up to the holiday season means easy pickings for cybercriminals. Consumers are starting to prepare for the holidays earlier, but not as early as the scammers. As consumers head online in their droves, scammers and other cybercriminals are lying in wait.
The advent of Black Friday and Cyber Monday – days where shoppers are offered amazing deals to prompt early Christmas purchases– see a frenzy of online activity. There are discounts aplenty and great deals to be had.
However, not all of those discounts are genuine. Many are scams that are used to phish for sensitive information or spread malware infections. As is the case every year, the holiday season sees a spike in malware infections, with the biggest spike over Thanksgiving weekend. This year has been no exception. Holiday season malware infections have increased significantly year on year.
Holiday Season Malware Infections Rise 118% Above Normal Levels
This year, over the first official shopping weekend of the holiday season, malware infections increased by 106% according to data compiled by the Enigma Software Group. On Cyber Monday, when even more great deals on online purchases are made available, malware infections were 118% higher than normal.
Those figures are only for Windows users. Add in smartphones and Apple devices and the figures would be higher still. The problem is also getting worse. Last year there was a spike of 84% over normal levels during the Thanksgiving weekend.
There have been a number of suggestions put forward as to why the figures are so high this year. One of the main reasons is simply due to the number of shoppers heading online. Each year sees more individuals choosing to go online shopping over Thanksgiving weekend. More online shoppers mean more opportunities to infect users with malware.
However, there are also more actors involved in online scams, malware-as-a-service and ransomware-as-a-service has also grown in popularity, and many cybercriminals have started up affiliate schemes to get more help spreading their malicious software. Individuals who succeed in infecting computers with ransomware are given a cut of the profits and there is no shortage of people willing to try the affiliate schemes to boost their own earnings.
Cybercriminals are also getting better at developing convincing scams and malicious email messages. The grammatical and spelling mistakes that were common in phishing emails in years gone by are largely gone. Now, almost perfect emails are sent and scammers are using a wide range of social engineering techniques to lure end users into clicking on malicious links or opening infected email attachments. Spoofed retail sites are also now commonplace – and extremely convincing.
The growth of social media has also helped boost cybercriminal activity. Malicious posts are being shared online offering discounts, special offers, and unmissable deals. However, all end users get is a malware download.
Avoiding a Bad Start to Holiday Season
To avoid becoming a victim of a scam or having to deal with a malware or ransomware infection, shoppers must be vigilant and exercise more caution. Offers that sound too good to be true usually are. Unsolicited emails should always be treated as suspicious and extra care should be taken when clicking on any link or visiting a retail site.
Businesses should also take extra precautions. A malware or ransomware infection can prove extremely costly to resolve. While warnings should be sent to end users about the risks of holiday season malware infections, technological solutions should also be in place to prevent malicious file downloads.
Antispam solutions are highly effective at blocking malicious messages such as phishing emails and emails containing malware. SpamTitan blocks 99.97% of spam messages, contains a powerful anti-phishing module, and blocks 100% of known malware.
Malicious links on social media sites and on third-party ad networks (malvertisting) are a very real risk. However, a web filter can be used to control access to social media sites, block malicious third-party adverts, and prevent end users from visiting websites known to contain malware.
If you want to keep your network free from malware this holiday season, if you have not already used these two solutions, now is the time. They will also help to keep your network malware free around the year. And with security experts predicting a massive increase in ransomware and malware attacks in 2017, there is no better time to start improving your defenses.
The Federal Trade Commission (FTC) in the United States has responded to the current ransomware epidemic by issuing ransomware advice for businesses and consumers. The FTC ransomware advice for businesses comes following a spate of high profile ransomware attacks on U.S businesses. The threat has prompted many U.S. government agencies to release ransomware advice for businesses in the past few months.
Ransomware is a form of malware that encrypts files on a victim’s computer and prevents them from being accessed. After a computer is infected, the attackers issue a ransom demand. In order to obtain the key to unlock the encryption the victim is required to pay a ransom. The ransom amount can be set by the attackers, although it is often around $500 per infected computer.
Ransomware has proved incredibly popular with cybercriminals as it offers a quick source of revenue. Since payment is made in an anonymous cryptocurrency such as Bitcoin, money can be collected without fear of being caught.
The scale of the problem has been shown by numerous reports by security firms. This month, SentinelOne released the results of a global survey that showed 48% of organizations had experienced at least one ransomware attack in the past 12 months. The companies that had been attacked had been forced to deal with an average of 6 ransomware incidents in the past year.
A report released by Beazley’s Breach Response Unit suggests ransomware attacks between January and September were four times higher than in 2015, while a report from Kaspersky Lab suggests there has been an eightfold increase in attacks in the past year.
Ransomware is installed via a number of different attack vectors. Ransomware gangs use exploit kits on websites that probe for vulnerabilities in browsers. Those vulnerabilities are leveraged to download ransomware. Malvertising is also used. This is the use of third party ad networks to spread malware. Adverts are created containing malicious code which directs users to websites that silently download ransomware. Ransomware downloaders were also allegedly sent out via Facebook Messenger this week.
While not all ransomware attacks result in files being encrypted, attacks carry a significant cost. SentinelOne suggests that in the United States, organizations spend an average of 38 man-hours restoring files from backups after a ransomware attack. Additional investment in security is also required after an attack.
Since ransomware can spread laterally across a network, a single infection can result in many computers being infected. Ransom demands of the order of tens of thousands of dollars are not uncommon. The recent ransomware attack on the San Francisco ‘Muni’ rail system saw a ransom demand of $73,000 issued.
Ransomware Advice for Businesses
Unfortunately, antivirus software can be ineffective at preventing ransomware attacks. Businesses looking to defend against ransomware must therefore use a range of techniques. These include:
- Ensuring all software is kept up to date and patches applied promptly
- Setting antivirus and antimalware programs to update definitions automatically
- Use endpoint security controls to prevent ransomware installations
- Implement a robust spam filter to prevent malicious emails from being delivered to end users
- Use a web filtering solution to prevent employees from visiting malicious websites and to monitor users’ online activities to identify high risk activities
- Use intrusion prevention software
- Train the workforce on security best practices and test knowledge to ensure training has been effective
- Ensure all members of staff are aware who to contact and what to do if they believe they have inadvertently installed malicious software
To avoid paying a ransom, it is essential to ensure that regular backups of data are performed. Multiple backups should be made to minimize the risk of data loss. Those backups should be stored on an air-gapped device to avoid backup files also being encrypted. A ransomware response plan should also be developed to reduce disruption to the business in the event of an attack.
The email marketing service MailChimp employs security controls to ensure that its customers do not use the service to send spam; yet, this week malicious spam emails were sent from multiple accounts after a MailChimp account hack.
Customer accounts that were breached included Business News Australia, Brisbane’s The Sit Down Comedy Club, and gardening and home services provider Jim’ Group.
MailChimp accounts are valuable to spammers as subscribers to company newsletters are more likely to trust the emails than they would an email from an unknown sender. The hijacked accounts were used to send spam emails demanding an invoice be paid. Spammers often target businesses with malicious emails that spread malware. If malware such as a keylogger can be installed, the attackers can gain access to corporate email accounts or gain network access. Corporate bank account details can be stolen and fraudulent transfers made.
A fake invoice is a common ploy used to fool email recipients into opening an infected email attachment or clicking on a malicious link. A sense of urgency is often included to scare the recipient into opening the attachment. A threat of legal action if the outstanding invoice is not paid promptly is a common tactic.
In this case, a number of different variants were sent. Some emails contained an image with an embedded hyperlink which recipients could click to view the invoice. The spammers also included the logo of accounting software Quickbooks for extra authenticity.
Initially, it appeared that MailChimp had experienced a security breach that resulted in spammers gaining access to accounts; although the company issued a statement saying that an investigation of the incident did not point to an internal breach.
MailChimp told Motherboard “MailChimp’s normal compliance processes identified and disabled a small number of individual accounts sending fake invoices. We have investigated the situation and have found no evidence that MailChimp has been breached. The affected accounts have been disabled, and fraudulent activity has stopped.”
How the MailChimp account hack was pulled off remains a mystery. The spammers may have managed to guess the passwords that were used to secure accounts or they could have obtained those passwords by other means. The practice of reusing passwords on multiple platforms could be to blame. If a breach of one platform occurs, cybercriminals can gain access to all other online services that use the same password.
In a recent post, computer security blogger Graham Cluley suggested some passwords were obtained by the password stealing Trojan Vawtrak. Cluley was contacted by an anonymous source who claimed to be in possession of two thousand MailChimp login credentials which were recorded by Vawtrak.
Details of the MailChimp account hack are unlikely to be released, although the incident shows how important it is for businesses to use two-factor authentication to secure their online accounts. The incident also shows how important it is to exercise caution and to treat any email attachment of hyperlink as potentially malicious, even if the sender of the email is known.
The biggest hacking threat to businesses comes not from unpatched software, but phishing. An incredibly simple, yet highly effective way that cybercriminals gain access to networks. Phishing can be used to bypass even the most sophisticated of cybersecurity defenses. Why go to the trouble of trying to find a weakness in highly sophisticated cybersecurity defenses when a simple email can get an employee to give the attacker their login credentials?
As Jeh Johnson, Secretary for the U.S. Department of Homeland Security, recently explained to attendees at the Financial Crimes and Cybersecurity Symposium in New York, phishing is one of the department’s biggest fears.
“The most devastating attacks by the most sophisticated attackers almost always begin with the simple act of spear-phishing,” says Johnson. It is no surprise that phishing is the biggest hacking threat to businesses. Phishing is alarmingly effective.
Even multi-million dollar cybersecurity defenses can be bypassed with a simple phishing email. The social engineering techniques used by cybercriminals often get the desired response.
Most of the largest hacks in the United States were possible not due to a security weakness, but because an employee responded to a phishing email. The cyberattacks on Ebay, Target, the Office of Personnel Management, JP Morgan, Anthem, and Sony Pictures all started with a simple phishing email.
Cybercriminals have also started using phishing emails to distribute ransomware. Malicious links are sent to company employees along with a request to click for free items, to take part in prize draws, or even to secure their computers to prevent cyberattacks.
Phishing has been around for as long as email and cybercriminals will not stop using phishing to gain access to networks, install malware, lock files with ransomware, and steal data. Phishing is likely to remain the biggest hacking threat to businesses. Organizations – and their employees – just need to get better at identifying and blocking phishing attempts.
One of the best defenses against phishing is to ensure that all staff members from the CEO down receive security awareness and anti-phishing training.
Training alone is insufficient. Staff can be told how to identify phishing attempts, but their ability to spot a phishing email must be put to the test. Anti-phishing skills need to be regularly tested. Dummy phishing emails should be sent to check to see who responds. Johnson says his department often sends fake phishing emails – free Redskins tickets for example – to test anti-phishing prowess. Anyone who responds is provided with further training.
Training is important in case a phishing email reaches an employee’s inbox, although it is far better to ensure phishing emails are not delivered. The best technological defense against phishing is the use of a spam filter. If phishing emails are not delivered to inboxes, staff members will not be able to respond and their anti-phishing skills will not be put to the test.
SpamTitan is a highly effective spam filtering solution for businesses that blocks 99.97% of spam email. Each month SpamTitan is independently tested for effectiveness. SpamTitan has now won 36 consecutive VB Bulletin antispam awards.
SpamTitan is a highly scalable anti-spam solution that’s suitable for businesses of all sizes. SpamTitan can be installed as a software solution, as a virtual appliance, or as a 100% cloud-based solution, the latter being ideal for managed service providers (MSPs).
Each solution is quick and easy to install, requires a low management overhead, and incorporates a host of features to block malware and prevent the delivery of phishing emails.
We are so confident that you will be impressed with SpamTitan that we offer the full product on a 100% free, 30-day trial. For further information contact TitanHQ today and take the first step toward banishing spam.
Malicious email spam volume has increased again. According to the latest figures from Kaspersky Lab, malicious email spam volume in Q3, 2016 reached a two-year high.
In Q3 alone, Kaspersky Lab’s antivirus products identified 73,066,751 malicious email attachments which represents a 37% increase from the previous quarter. Malicious spam email volume has not been at the level seen in Q3 since the start of 2014. Kaspersky Lab’s figures show that six out of ten emails (59.19%) are spam; a rise of around 2% from Q2, 2016. September was the worst month of the year to date, with 61.25% of emails classified as unsolicited spam.
Spam includes a wide range of unsolicited emails including advertising and marketing by genuine companies, although cybercriminals extensively use email to distribute malware such as banking Trojans, keyloggers, and ransomware. The use of the latter has increased considerably throughout the year. In Q3, the majority of malicious emails contained either ransomware or downloaders that are used to install ransomware on personal computers and business networks.
Ransomware is a form of malware that locks files on a computer with powerful encryption, preventing the victim from gaining access to their data. Many ransomware variants are capable of spreading laterally and can encrypt files on other networked computers. All it takes is for one individual in a company to open an infected email attachment or click on a malicious link in an email for ransomware to be downloaded.
Spammers often use major news stories to trick people into opening the messages. The release of the iPhone 7 in Q3 saw spammers take advantage. Spam campaigns attempted to convince people that they had won an iPhone 7. Others offered the latest iPhone at rock bottom prices or offered an iPhone 7 for free in exchange for agreeing to test the device. Regardless of the scam, the purpose of the emails is the same. To infect computers with malware.
There was an increase in malicious email spam volume from India in Q3. India is now the largest source of spam, accounting for 14.02% of spam email volume. Vietnam was second with 11.01%, with the United States in third place, accounting for 8.88% of spam emails sent in the quarter.
Phishing emails also increased considerably in Q3, 2016. Kaspersky Lab identified 37,515,531 phishing emails in the quarter; a 15% increase compared to the Q2.
Business email compromise (BEC) attacks and CEO fraud are on the rise. These scams involve impersonating a CEO or executive and convincing workers in the accounts department to make fraudulent bank transfers or email sensitive data such as employee tax information. Some employees have been fooled into revealing login credentials for corporate bank accounts. Cybercriminals use a range of social engineering techniques to fool end users into opening emails and revealing sensitive information to attackers.
Security awareness training is important to ensure all individuals – from the CEO down – are aware of email-borne threats; although all it takes is for one individual to be fooled by a malicious email for a network to be infected or a fraudulent bank transfer to be made.
The rise in malicious email spam volume in Q3, 2016 shows just how important it is to install an effective spam filter such as SpamTitan.
SpamTitan has been independently tested by VB Bulletin and shown to block 99.97% of spam emails. SpamTitan has also been verified as having a low false positive rate of just 0.03%. Dual antivirus engines (Kaspersky Lab and ClamAV) make SpamTitan highly effective at identifying malicious emails and preventing them from being delivered to end users.
If your end users are still receiving spam emails you should consider switching antispam providers. To find out the difference that SpamTitan can make, contact the Sales Team today and register for a free, no obligation 30-day trial.
Thanksgiving weekend sees Americans head on line in the tens of millions to start online Christmas shopping in earnest and this year the holiday season scams have already started.
Black Friday and Cyber Monday are the busiest online shopping days, but some retailers are kickstarting their promotions early this year and have already started offering Black Friday deals. Amazon.com for example launches its first Black Friday offers tomorrow, well ahead of the big day on 25th November.
It is no surprise that retailers are trying to get ahead. 41% of shoppers start their holiday shopping in October according to a recent National Retail Federation survey. 41% of shoppers wait until November. 82% of shoppers like to make an early start, and this year so are the scammers.
A popular tactic used by cybercriminals is typosquatting – the registration of fake domains that closely match the brand names of well-known websites. Phishers use this tactic to obtain login credentials and credit card numbers. In recent weeks, there has been an increase in typosquatting activity targeting banks and retailers.
A fake domain is registered that closely matches that of the targeted website. For instance, the Amaz0n.com domain could be purchased, with the ‘o’ replaced with a zero. Alternatively, two letters could be transposed to catch out careless typists. A website is then created on that domain that closely matches the targeted website. Branding is copied and the layout of the genuine site is replicated.
There is another way that scammers can take advantage of careless typists. Each country has its own unique top level domain. Websites in the United States have .com. Whereas, websites registered in the Middle Eastern country of Oman have the .om domain. Scammers have been buying up the .om domains and using them to catch out careless typists. In the rush to get a holiday season bargain, many users may not notice they have typed zappos.om instead of zappos.com.
Visitors to these scam websites enter their login credentials as normal, yet all they are doing is giving them to the attackers. The scammers don’t even need to spoof an entire website. When the login fails, the site can simply redirect the user to the genuine site. Users then login as normal and complete their purchases. However, the scammers will have their login credentials and will be able to do the same.
However, many websites now have additional security features to prevent the use of stolen login credentials. If a login attempt is made from an unrecognized IP address, this may trigger additional security features. The user may have to answer a security question for example.
Some scammers have got around this problem. When a user attempts to login on a scam site, a login session is automatically opened on the genuine website. The information entered on the scam site is then used by the attackers on the genuine site. When the unusual IP address triggers an additional security element, this is then mirrored on the scam site with the same question forwarded to the user. The question is answered, and an error message is generated saying the login was unsuccessful. The user is then redirected to the genuine site and repeats the process and gains access. Chances are they will be unaware their account details have been compromised. Hours later, the scammers will login to the genuine site using the same credentials.
Businesses must also exercise caution at this time of year and should take steps to reduce the risk of employees falling for holiday season scams. Employees keen to get the latest bargains will undoubtedly complete some of their purchases at work.
Email scams increase at this time of year and business email accounts can be flooded with scam emails. Offers of discounts and special deals are likely to flood inboxes again this year. Email holiday season scams may not be about stealing login credentials. Given the increase in malware and ransomware infections in 2016, this holiday season is likely to see many holiday season scams infect businesses this year. A careless employee looking for an online bargain could all too easily click a link that results in a malware download or ransomware infection.
As holiday season fast approaches, the scammers will be out in force. It is therefore important for both businesses and consumers to take extra care. If you want to find out how you can protect your business from malware and ransomware, contact the TitanHQ team today and find out more about our security solutions.
Spam email volume has reduced over the past couple of years following the takedown of key botnets – and individuals – behind some of the biggest spamming campaigns. It was starting to look like the super-spamming days of the early 2010s were a thing of the past. However, spam email volume has been increasing in recent months.
Necurs botnet activity has increased and last month the Tofsee botnet came back to life after years of dormancy. Both of these botnets had previously been used to send annoying but relatively harmless spam emails offering cheap pharmaceuticals and offers of beautiful Russian brides. However, the increase in activity is also coupled with the move to malicious email attachments containing malware and ransomware.
These and other botnets such as Helihos are also growing in size at alarming rates and spam email volume is soaring. Some reports suggest spam email volume has increased from around 200,000 spam emails per second to 450,000 emails per second over the past couple of months.
But what are these malicious email attachments, and how big is the risk?
97% of Malicious Spam Email Attachments Contain Locky Ransomware
Locky ransomware first appeared in February 2016. It has since become one of the biggest email threats. The ransomware is being sent in massive spam campaigns and increasingly sophisticated social engineering techniques are used to infect end users.
To put these email campaigns into some perspective, historically, the volume of spam email used to deliver malware, ransomware, and other email nasties stood at around 2% of the total spam email volume. By around April this year, two months after Locky first appeared on the scene, malicious spam emails containing the ransomware accounted for around 18% of total spam email volume.
The Quarterly Threat Report issued by ProofPoint earlier this month suggests the volume of spam email containing malicious attachments or links reached record levels in quarter 3, 2016. The vast majority of those emails contained Locky. According to the report, 97% of captured spam emails with malicious attachments were used to deliver Locky. That’s a 28% increase from Q2, and a 64% increase since Q1.
This discovery coincided with a drop in detection and a relatively quiet period for the past two weeks. However, Locky is back with a vengeance. On Monday this week, three new campaigns were detected, one of which was massive and involved 14 million messages in around half a day. 6 million of those messages were sent in a single hour!
The risk from Locky is considerable. Locky is capable of deleting Windows Shadow Files and encrypting a wide range of data, including data on portable storage devices and network drives. Resolving an attack can prove extremely costly. It is therefore essential to improve defenses to prevent attacks.
Ransomware and Malware Protection
Larger botnets and the move to malicious messages means organizations need to be prepared and take steps to ensure that these messages are effectively blocked.
Protecting your organization from email attacks is critical. It is therefore essential to employ a robust enterprise spam filtering solution. SpamTitan blocks 99.7% of spam email, preventing malicious email attachments and links from being delivered to your end users. This reduces reliance on training programs to educate end users on email threats.
Preventing ransomware infections requires a multi-layered approach. There is no silver bullet that will offer total protection against ransomware infections, but there are security products that can greatly reduce risk.
Protecting against exploit kits and malvertising requires a web filtering solution. By blocking websites known to contain malware or exploit kits, and carefully controlling the website content that can be accessed by employees, organizations can effectively protect against web-borne infections. WebTitan offers that protection and can be used to block malicious websites and reduce the risk from infections via malvertising.
Along with intrusion detection systems, firewalls, antivirus and anti-malware solutions, it is possible to defend against ransomware and malware attacks and keep your data secured.
In July, news started to break about a massive Yahoo Inc data breach. It has taken some time, but the Yahoo Inc data breach has now been confirmed. And it was huge.
The Yahoo Inc data breach beats the massive cyberattack on Heartland Payment Systems in 2009 (130 million records), the LinkedIn cyberattack discovered this summer (117 million records), and the 2011 Sony data breach (100 million records). In fact, the Yahoo Inc data breach is the largest ever reported. More records were stolen in the cyberattack than those three breaches combined. More than 500 million accounts were compromised, according to Yahoo.
Yahoo Inc Data Breach Worse than Initially Thought
The Yahoo Inc data breach came to light when a hacker added a listing to the Darknet marketplace, theRealDeal. The credentials of 280 million account holders were offered for sale by a hacker called ‘Peace’. To anyone who follows Internet security news, the name of the hacker selling the data should be familiar. Peace recently listed the data from the LinkedIn hack for sale.
The 280 million Yahoo records were listed for a paltry $1,800. That payment would buy a cybercriminal names, usernames, easily crackable passwords, backup email addresses, and dates of birth. While the data were listed for sale 2 months ago, Yahoo has only just announced the breach.
After being alerted to the listing, Yahoo initiated an internal investigation. The investigation allegedly did not uncover any evidence to suggest that the claims made by “Peace” were genuine. However, the internal investigation did reveal that someone else had hacked Yahoo’s systems. Yahoo claims the hack was performed by a state-sponsored hacker.
Yahoo issued a statement saying “The investigation has found no evidence that the state-sponsored actor is currently in Yahoo’s network.” While that is undoubtedly good news, the bad news is that access is no longer required because user’s data have already been stolen.
The stolen data include names, email addresses, dates of birth, telephone numbers, security questions and answers, and hashed passwords. According to Yahoo, users’ bank account information and payment card details do not appear to have been stolen. Those credentials were stored in a separate system.
What is most concerning about the Yahoo Inc data breach is not the fact that its systems were compromised, but how it has taken so long for Yahoo to discover the cyberattack. The breach did not occur over the summer. The hack took place in 2014.
The results of the Yahoo Inc data breach investigation will have come as a nasty shock to Verizon. The company agreed to buy Yahoo’s core web business, including Yahoo email, in the summer for $4.8bn. It is possible that Verizon may now be having second thoughts about that deal. Whether the hack will have an impact on the purchase remains to be seen, but for Yahoo the timing could not be much worse.
Yahoo Account Holders Advised to Change Passwords and Security Q&As
Yahoo account holders are unlikely to be concerned about any potential sale of their email accounts to Verizon. They will however be concerned about the sale of their credentials to cybercriminal gangs. Even if the data that were listed for sale by Peace are not genuine, someone somewhere does have their data. Most likely, their data are in the hands of multiple criminals. Those data can – and will – be used in a variety of malicious ways.
Yahoo has now placed a notice on its website alerting users to the breach of their data. Yahoo has also sent out emails to affected users urging them to login to their accounts and change their passwords and security questions. The old security questions and answers have now been invalidated and Yahoo has told users to check their accounts for any suspicious activity, albeit out of “an abundance of caution”.
Fortunately for account holders, the majority of passwords were encrypted with bcrypt – a relatively secure form of encryption. However, that does not mean that the passwords cannot be cracked nor that email account holders are not at risk as a result of the Yahoo Inc data breach.
Yahoo Users at Risk of Phishing Attacks
Cybercriminals may not be able to crack the passwords and gain access to user accounts, but they have all the data they need to conduct phishing campaigns.
Yahoo has already emailed users alerting them to the breach, but the emails contained links that can be used to change passwords and security questions. Any cybercriminal in possession of the stolen data is likely to copy the official emails sent by Yahoo. However, instead of links to Yahoo’s website, the emails will contain links to phishing sites.
Those sites are likely to look exactly the same as the official Yahoo site. However, any user entering a new password or security question, would simply be disclosing that information to the attacker. Emails are also likely to be sent that direct users to websites containing exploit kits. Clicking the links will result in malware and ransomware downloads.
If the criminals behind the attack – or those in possession of the data – do manage to crack the passwords, it is not only Yahoo email accounts that could be compromised. Any individual who has used the same password on other websites faces a high risk of other accounts being compromised. Bank accounts, social media accounts, other email accounts, E-bay and Amazon.com accounts could all be at risk.
The data could also be used for social engineering scams, via email or telephone. Criminals will be looking to obtain the extra data they need to commit identity theft and other types of fraud.
How to Minimize Risk and Protect Yourself
- Never click on any links contained in emails. Even if an email looks official and contains a link to help.yahoo.com or login.yahoo.com, do not click on the links. Instead, login to your account in the usual way by entering the web address directly into your browser and change your password and security questions.
- Use a strong password containing letters (capitals, and lower case), numbers, and special characters.
- If you have used the same password for multiple websites, change those passwords immediately. Each website requires a different password. Use a password manager – either a free or paid service – to remember all your passwords.
- Use Yahoo Account Key, which will eliminate the need for a password altogether
- Never respond to any email request for personal information
- Never open any attachments sent via email unless you are certain of their genuineness
In response to the massive rise in ransomware attacks on healthcare organizations, the Department of Health and Human Services’ Office for Civil Rights has developed new HIPAA guidance on ransomware for covered entities.
The guidance covers best practices that can be adopted to prevent cybercriminals from installing ransomware, along with helpful advice on how to prepare for ransomware attacks and how to respond when critical files are encrypted by malicious software. Importantly, the new HHS guidance on ransomware also confirms how these security breaches are classed under the Health Insurance Portability and Accountability Act. Many healthcare security professionals feel that HIPAA guidance on ransomware has been long overdue.
HIPAA Guidance on Ransomware Clarifies Attacks ARE Reportable Data Breaches
In the new HIPAA guidance on ransomware, OCR has clarified the reporting requirements for ransomware attacks under HIPAA. Over the past few months, as ransomware attacks on healthcare organizations have soared, there has been much confusion over whether these attacks are classed as security incidents under HIPAA Rules.
It has been argued that since ransomware blindly encrypts files and does not usually involve the attackers actually gaining access to data, the incidents should not be reportable to the HHS. Also, it has been argued that there is no need to issue breach notification letters to patients whose data are temporarily encrypted.
The OCR has now confirmed that ransomware attacks are reportable and require a full breach response, including the mailing of breach notification letters to affected patients and health plan members.
A ransomware attack is considered to be a data breach unless the covered entity can demonstrate that there was only a “low probability that PHI has been compromised.” The OCR considers a breach to have occurred if “unauthorized individuals have taken possession or control of the information.”
How HIPAA Covered Entities Must Respond to Ransomware Attacks
Any HIPAA covered entity that experiences a ransomware attack must orchestrate a full breach response and proceed as they would for a malware attack or if a hacker gained access to PHI.
An accurate and thorough risk assessment must be conducted to determine whether there is any risk to the confidentiality, integrity, or availability of electronic protected health information (ePHI). HIPAA requires the infection to be contained and data must be restored to allow normal operations to continue. Security measures must be implemented to mitigate risks and prevent future attacks.
The Office for Civil Rights must be notified of the breach within 60 days of the discovery of the attack if the breach impacts 500 or more patients, or at the end of the year in the case of a smaller breach of patient records. Breach notification letters must also be mailed to patients within 60 days, in accordance with the HIPAA Breach Notification Rule. A breach notice must also be submitted to the media if the breach impacts 500 or more individuals.
Preparing for a Ransomware Attack
The new HIPAA guidance on ransomware explains that organizations must be prepared to deal with ransomware attacks.
Healthcare organizations should implement cybersecurity protection measures to prevent ransomware attacks, such as installing a robust spam filtering solution such as SpamTitan. Spam filters can prevent the majority of malicious emails from being delivered to end users. Staff members should also be trained on the risk of ransomware and advised how to identify phishing emails and malicious websites.
A risk analysis should be conducted to identify potential cybersecurity vulnerabilities that could be exploited by hackers to install ransomware. Any vulnerabilities that could increase the risk of a ransomware attack being successful should be addressed in a timely fashion.
An emergency operation plan must also be developed that can be immediately put in place upon discovery of a ransomware attack. The new HIPAA guidance on ransomware also states that emergency response plans should be regularly tested to ensure that they are effective.
Ransomware Attacks on Healthcare Organizations Soar
This year has seen an extraordinary number of ransomware attacks on healthcare organizations. In February, ransomware was installed on computers at Hollywood Presbyterian Medical Center in California and a ransom demand of $17,000 was issued. Hollywood Presbyterian Medical Center felt the best course of action to minimize damage was to pay the ransom and obtain the decryption keys to unlock data. On receipt of the funds, the attackers made good on their promise and supplied the keys to unlock the encryption.
However, some organizations have discovered that simply paying a ransom demand does not spell the end of the problem. There have been cases – notably Kansas Heart Hospital – where a ransom has been paid, only for a second ransom demand to be issued. Other companies have paid and not been supplied with working keys. Paying a ransom is no guarantee that data can be decrypted.
The FBI advises against paying ransom demands. Not only is there no guarantee that the attackers will supply working keys, but payment of ransoms only encourages the attackers to continue with their ransomware campaigns. Only by preparing for ransomware attacks can organizations ensure that in the event of ransomware being installed, they will be able to recover their files quickly without giving in to attackers’ demands.
The Ransomware Threat Should Not Be Ignored
The threat to healthcare organizations is severe. Research conducted by anti-phishing company PhishMe showed that in Q1, 2016, 93% of phishing emails contained ransomware. Figures from Symantec Security Response show that on average, 4,000 ransomware attacks have occurred every day since January 1, 2016. A report from security firm Solutionary, shows that in 2016, 88% of ransomware detections were by healthcare organizations.
So far this year, in addition to the attack on Hollywood Presbyterian Medical Center, ransomware attacks have been reported by MedStar Health and DeKalb Health, while Prime Healthcare reported that three of its hospitals – Desert Valley Hospital, Chino Valley Medical Center and Alvarado Hospital Medical Center – were attacked with ransomware. Methodist Hospital in Kentucky, Massachusetts General Hospital, and Yuba Sutter Medical Clinic in California have also reported ransomware attacks this year, to name but a few.
It may not be possible to prevent ransomware attacks, but if healthcare organizations invest in better security protections, the majority of attacks can be prevented. Provided that adequate preparations are made for ransomware attacks, in the event that the malicious software is installed, damage can be limited.
The HIPAA guidance on ransomware can be downloaded from the HHS website.
Knowing how to avoid email server blacklisting is vitally important for any organization that relies on email as a channel of communication. The consequences of your email server being blacklisted can be costly, inconvenient, and potentially damaging to your organization´s credibility.
To best understand what email server blacklisting might mean to your organization, it is ideal to have a little knowledge about how email server filters work. Consequently we have divided this post into three sections explaining a little about email server filters, what may cause your email server to be blacklisted, and how to avoid email server blacklisting.
A Little about Email Server Filters
Email server filters do not actually filter your incoming emails at server level. They protect your organization from spam emails and other email-borne threats from the cloud or as a virtual appliance installed between your firewall and your email server. The distinction between the two types of filter is that virtual appliances can be more appropriate for some larger organizations.
Regardless of how they are deployed, email filters effectively work in the same way – using fast front-end tests to detect and reject the majority of spam emails before a deeper analysis is conducted of the email that remains. One of these front-end tests is a comparison of each email against a list of known sources of spam. This list is known as the Realtime Block List or RBL.
If your organization´s IP address appears on this list, all of your emails will be rejected by most email filters until the IP address is removed from the list – something that can take anything from 24 hours to six months to resolve completely. During this time you will have to ask your customers and other contacts to add your email address to a safe list or “whitelist”.
Why Was My Email Server Blacklisted?
There are several reasons why an email address (or IP address) can be blacklisted, and it is important to find out the exact reason(s) before trying to get your organization´s IP address removed from the Realtime Block List. If you fail to identify the cause, and fail to take steps to avoid email server blacklisting in the future, it can be much tougher to get un-blacklisted second time around.
Blacklisting typically occurs for one of several reasons:
- Your system has been infected with a spambot that has created multiple email accounts within your organization´s domain and is using those accounts to send out spam email.
- Someone in your organization may have revealed their login credentials and a spammer is using that information to send spam emails from the end-user´s email account.
- Emails sent innocently from one or more end-user accounts have had a high proportion of spam-related keywords, or have had infected files attached to them.
The last scenario is entirely possible if an end-user has prepared a presentation or spreadsheet on an infected home computer and bought the infected file into the workplace on a flash drive. Most email filters have antivirus software for identifying malware in attachments. If the infected attachment is sent to multiple recipients – and identified by multiple email filters – your organization´s IP address will quickly be blacklisted.
How to Avoid Email Server Blacklisting
Ideally, organizations should be able to avoid email server blacklisting by having robust antivirus protection and educating their end-users about online security. There should also be an email usage policy in place that would avoid email server blacklisting due to inappropriate content or unsafe attachments – even when these events occur inadvertently.
Unfortunately end-users are the weakest link in the security chain, and it only takes one end-user to click on a malicious URL or reveal their login credentials for an organization´s IP address to be blacklisted. In fact, if blacklisting is the worse consequence of a security breach, your organization has got off lightly and should consider itself lucky that the consequences were not far more serious.
Consequently, the best way how to avoid email server blacklisting is with an email filter that has malicious URL blocking to prevent end-users visiting malware-infested websites, with phishing protection to reject emails directing an end-user to fake website, and outbound scanning to identify potential spam and infections contained in – or attached to – outgoing emails.
Avoid Email Server Blacklisting with SpamTitan
Not all email filtering solutions have mechanisms to avoid email server blacklisting. However, SpamTitan has taken these factors into account in the design of SpamTitan Cloud and SpamTitan Gateway. Both of our solutions for email filtering use “URIBL” and “SURBL” protocols to compare links contained within inbound emails and their attachments against a global blacklist of known malicious and phishing sites.
The same protocols – along with several other mechanisms – are used in the scanning of outbound mail to ensure it is clear of viruses and could not be interpreted as having spammy content. Outbound scanning would also identify spam emails originating from a spambot or a compromised email account in order to prevent it from being sent and avoid email server blacklisting.
Naturally, you do not want your end-users to be under the impression that their emails have been sent when they are caught by the outbound filter. So SpamTitan Cloud and SpamTitan Gateway have comprehensive reporting features that advise of any problems in order that the problems can be rectified quickly and effectively – certainly more quickly than trying to get your organization´s IP address removed from a Realtime Block List.
Attackers are using the MS Office object linking and embedding (OLE) function to insert malicious scripts into spam emails. Social engineering techniques are also used to encourage users to double click on the malicious OLE embedded scripts.
The spam email messages used for these campaigns are simplistic, but effective. They appear to contain an invoice or receipt in the form of an attached Word document. However, the document contains a malicious JS script called Trojan:JS/Certor.A. Running the script will result in the users’ proxy settings being changed which will allow the attackers to steal authentication credentials and other sensitive data.
Opening the attached Word document will not automatically result in a user’s computer being compromised. The attached documents contain malicious OLE embedded scripts which are masked by text or icons. Typically, these embedded objects contain text asking the user to double click to view the invoice or receipt.
If the user double clicks as requested, they will receive a security warning on screen asking for confirmation that they want to open the file. The file will be identified as a Jscript Script file, but it will have an innocuous name. The user may not realize that the file is malicious. Although the names of the file are different for each campaign, they typically include terms such as PayPal, invoice, or receipt.
Allowing the file to be opened will see a range of malicious functions executed. Registry keys related to browser proxy settings will be modified, and a number of components will be dropped and executed. The malware even carries its own certificate.
The malware can be used to redirect users to malicious websites containing exploit kits, phishing campaigns, or ads. However, the malware will also enable the attackers to monitor HTTPS content and traffic and steal sensitive data such as login credentials entered on secure websites. The end user will be unaware that their computer has been compromised and that their actions online are being monitored.
To avoid infection, users have been told not to open attached files that are sent from unknown senders. Microsoft also says that this advice is all too often ignored by end users. For large businesses with many employees, preventing all users from running malicious OLE embedded scripts is a problem. There is always one employee that ignores security best practices. Unfortunately, all it takes for a network to be compromised is for one employee to run a malicious script.
The best step to take to ensure this doesn’t happen is to use a powerful spam filtering solution such as SpamTitan. SpamTitan stops 99.97% of spam emails from being delivered to end users’ inboxes.
Additionally, to prevent malicious OLE embedded scripts from being run, Microsoft offers the following advice:
“For added defense-in-depth, you can reduce the risk from this threat by following [Microsoft] guidance to adjust the registry settings to help prevent OLE Embedded Objects executing altogether or running without your explicit permission.”
Users of Apple devices have been warned about a new fake invoice email scam that attempts to get them to provide attackers with their bank details.
Another Email Scam Targets Apple Device Users
Criminals are sending spam emails in the millions in the hope that they will be received by owners of Apple devices. The spam emails contain a bogus invoice which indicates the user’s iTunes account has been used to download a number of videos, games, singles, and albums.
The fake invoice includes Apple logos and details of the amounts charged for each purchase. The email is intended to scare iTunes account holders into thinking their account has been compromised and used to make fraudulent purchases.
At the bottom of the invoice is a link for users to click if they did not authorize the purchases. The email recipient is told that they have 14 days to query purchases and receive refunds. However, clicking the “manage my refunds” link will not take the user to the Apple App Store website, but to a spoof site where they are asked to enter in their bank account information. The attackers claim that a refund will be given; however, divulging bank account details will enable the attackers to make fraudulent charges to the users’ accounts.
Both Apple and the FBI are investigating the latest fake invoice email scam. While Apple has not released a statement about this fake invoice email scam, after previous email spam campaigns Apple has told customers that they would not be asked to reveal sensitive information such as bank account details, passwords, and credit card numbers in emails.
When bank account information is required, such as to set up an iTunes account, the web address will be a subdomain of apple.com: store.apple.com for example. Apple advises customer never to reveal their sensitive information on any non-Apple website.
Fake Invoice Email Scam Targets Netflix Users
Criminals often spoof popular websites and attempt to phish for sensitive information such as credit card numbers and bank account details. Netflix it another popular target for scammers due to the number of subscribers to the service. A similar fake invoice email scam is also being used to fool Netflix account holders into disclosing their bank account information.
The spam emails contain an invoice for a subscription to Netflix claiming the user’s account will be charged to renew their subscription. The funds will be automatically taken from users’ accounts unless action is taken to change their auto-renew settings.
As with the Apple scam, a link is provided on the invoice which allows the email recipient to manage their subscription settings. The email appears to have been sent from Netflix, but clicking the link in the email will similarly take the user to a scam site. They are then taken through a series of steps to manage their subscription, which involves confirming their bank account details.
How to Avoid Becoming a Victim of Email Scams
These fake invoice email scam are designed to catch out the unwary and scare people into revealing sensitive information. However, by adopting some email security best practices it is easy to avoid scams such as these.
If you are sent an invoice in an email that claims to be from a web service, never click on the links in the email, no matter how realistic the email appears to be. Instead visit the official website and check account details or account charges directly on that website.
Cybercriminals often include links to spoofed websites in an attempt to obtain sensitive information, although the links can also direct the email recipient to a website hosting an exploit kit. Exploit kits probe for vulnerabilities in browsers and plugins that can be exploited to automatically download malware.
It is safest to assume that all attachments sent via email could be malicious. Never open an email attachment contained in an email unless you are 100% sure that it is genuine. Cybercriminals use email attachments to transmit malware and ransomware. Opening an attachment can potentially result in a malware infection.
Small business owners should use software solutions to prevent the downloading of malware. While anti-virus and anti-malware software can prevent malware from being installed, cybercriminals are developing highly sophisticated malware which is not detected by anti-virus software. By installing a spam filtering solution such as SpamTitan, small businesses can prevent these malicious emails from being delivered to end users’ inboxes. This reduces reliance of employees’ ability to identify phishing and scam emails.
A highly sophisticated PayPal email scam has been uncovered that is being used to deliver banking malware. Rather than promise the email recipient a sum of money or the opportunity to claim an inheritance from a long lost relative, this PayPal email scam claims a payment has been made to the victims account and that the money needs to be refunded.
The scam emails say that $100 has been fraudulently sent to the victims account and a refund is requested. The emails contain PayPal logos and appear to have been sent directly from PayPal. The emails appear to have been sent from the firstname.lastname@example.org email account. The message contains the subject line “You’ve got a money request”.
It is not clear how the attacker has managed to spoof the PayPal email account, or how the email manages to bypass the spam filter of Gmail.
If the victim responds to the email and makes the payment they will have lost $100; however, that is not all. The victim will also have malware loaded onto their computer. The malware will be loaded automatically regardless of whether the payment is made.
A link is contained in the email which the user must click to find out more about the transaction. The link contains a shortened URL and directs to a document detailing the transaction. The document has a goo.gl address and the link appears to be a jpeg image of the transaction details.
Chthonic Banking Malware Delivered via PayPal Email Scam
The malware that is installed is a variant of the infamous Zeus banking malware – Chthonic. This malware has been programmed to inject its own code and images into banking websites. When the victim visits their online banking website the malware captures login names, passwords, PIN numbers, and answers to security questions. Many banking malware variants target a small number of financial institutions; however, Chthonic is capable of recording information entered into more than 150 different banking websites. Victims are primarily in the UK, US, Russia, Japan, and Italy.
Chthonic isn’t the only malware delivered. Researchers at Proofpoint have determined that an additional previously unknown malware variant called AZORult is also installed onto victims’ computers. Little is known about this new malware variant.
As the sports spectacular fast approaches it is time to be on high alert for Rio Olympics email scams. The Olympics have not yet started, but the scammers have certainly been active. Many new Rio Olympics email scams have been spotted in recent weeks and the number will certainly increase as the opening ceremony draws closer.
Any large sporting event that attracts massive global media interest is a good opportunity for scammers. With sports fans hungry for news of the latest events, information about competitors, or the latest betting odds, it is all too easy for the guard to be let down. A scramble for last minute tickets sees scammers rake in hundreds of thousands of dollars.
Many scammers feel that the Olympics is shooting fish in a barrel season. Which sadly it is.
Kaspersky Lab has reported that the first Rio Olympics email scams were uncovered as early as 2015; however, as the opening ceremony draws closer activity has increased by several orders of magnitude. In the UK, Action Fraud – the National fraud reporting body – has already received reports of 47 cases of fraud relating to the Rio Olympics, which has resulted in attackers gaining more than £300,000 ($392,800) in funds.
Watch out for these Rio Olympics Email Scams
The Rio Olympics email scams are as diverse as the events being competed over the 17-day competition. It is therefore a time to be particularly cautious.
Criminals are after bank details for fraudulent transfers, credit card details to make purchases, personal data for identity theft, and login credentials for all manner of nefarious activities. It is a time for everyone to be on their guard. Be prepared for a barrage of Rio Olympics email scams over the next few weeks and keep your wits about you online.
Fake Tickets Scams
The price of a ticket to the opening ceremony will cost anywhere between $60 to $1,400, although touts are offering tickets at vastly inflated prices. Ticket prices to see the most popular events can cost several thousand dollars. If a scammer can get a victim to part with their hard earned cash it could potentially be a big payday. If you are still planning on attending and you haven’t yet purchased a ticket, only buy from official sellers.
Scammers have already registered a host of official-looking domain names to fool the unwary into purchasing tickets and parting with their credit card numbers. The websites use official logos that have been lifted from the Internet and appear genuine. Fake or cheap SSL certificates are also purchased making the connections appear secure, yet checks may not have been performed on the company. A SSL (website starting with https) does not guarantee it is genuine. Before parting with your money, at least perform a WHOIS search on the domain owner. Fake domains have usually been purchased in the past few weeks or months. Also perform some online checks to make sure the website is genuine.
Be aware that just because a website ranks highly in the search engines it doesn’t mean it is legitimate. Many scammers use search engine poisoning to increase the rank and position of their websites. They may even appear above those of official ticket vendors.
Many Rio Olympics email scams direct sports fans to unofficial ticket sellers and scam websites. You will at best pay over the odds for a ticket, but most likely you will just be giving your money to a scammer and no tickets will ever arrive in the post.
Congratulations! You Have Won!
If you receive an email informing you that you have won (insert amazing prize here), chances are it is a scam. If it sounds too good to be true, it most probably is. While many Rio Olympics email scams attempt to get individuals to disclose bank details and credit card information, a great deal attempt to obtain money by other means.
Many Rio Olympics email scams direct users to official looking scam websites. Be very careful about disclosing any information on any website during the Olympics.
Emails are sent with fake attachments which, if opened, will infect the email recipients’ computer with malware or ransomware. Malware can log keystrokes and obtain login credentials. Ransomware will encrypt files and a ransom must be paid in order to obtain decryption keys. Links contained in websites often direct users to malicious websites where drive-by malware downloads take place.
Olympics and Zika News
If you are a sports fan and you want to follow the latest news, search for sports sites online and bookmark the pages. Do not click links contained in emails that are delivered to your inbox or spam folder. Many people click on any links contained in emails that seem interesting. Doing so could prove very costly. Scammers are sending out fake news emails or links to legitimate stories. Those links do not direct the recipient to news websites, but to sites loaded with exploit kits which download malware and ransomware onto users’ computers.
Fake Prize Draws
Social media is awash with offers to enter prize draws to win tickets to the Olympics. Be exceptionally careful about disclosing any personal information on social media sites. Scammers often use fake prize draws to obtain sensitive personal data. Those data can be used for future email scams, or to gain access to online accounts. Phishing campaigns are rife during the Olympics.
Fake lottery scams are also commonplace. Emails are sent out in the millions telling recipients they have won a prize draw or lottery. To claim the winnings, it is necessary to pay an admin fee and disclose credit card details or provide bank details for the transfer along with other sensitive information. The golden rule is: If you have not entered the draw, you cannot have won it. If you are asked to make a payment in order to receive winnings it is likely a scam.
If in any doubt as to the legitimacy of an email, delete it. Chances are you have not won a competition you have not entered and you are not lucky enough to have won an all-expenses paid trip to Rio to see the Olympics. It is likely to be one of the many Rio Olympics email scams currently circulating cyberspace.
Protecting Employees and Networks from Attack
Businesses need to take care to protect their networks and prevent their employees from inadvertently downloading malware or giving attackers a foothold in their network. There are plenty of malicious actors that will be using the frenzy surrounding the Rio Olympics to conduct their nefarious activities.
One of the best defenses against Rio Olympics email scams – and other malicious email spam in general – is to use a robust email spam filter such as SpamTitan. SpamTitan blocks 99.97% of email spam, preventing malicious emails from being delivered to end users.
To find out how SpamTitan can help you improve your security posture and prevent malware, ransomware, and phishing emails from being delivered to your employees, give the TitanHQ sales team a call today.
Locky Ransomware Replaces Dridex as the Top Email Security Threat
Locky was first identified in February 2016 and is believed to have been released by the criminal gang behind the Dridex banking malware. In fact, Locky is distributed using the infamous Necurs botnet, one of the largest botnets currently in operation. Necurs was also used to deliver Dridex malware, which was the top email security threat in Q1. Figures from Proofpoint suggest Locky has been used in 69% of email attacks involving malicious documents in Quarter 2, 2016.
Not only is Locky now the top email security threat, malicious message volume also increased significantly in quarter 2. Proofpoint charted the rise in malicious email volume and the Quarterly Threat Summary shows volume has increased by 230% since Q1, 2016.
Bear in mind that the huge rise in malicious emails occurred even though the Necurs botnet went silent in early June and Locky emails essentially stopped being delivered. However, the botnet did not remain inactive for long. By the end of June it was back with a vengeance, with huge volumes of Locky emails delivered as part of a massive new campaign.
Exploit Kits Are Mostly Delivering CryptXXX Crypto-Ransomware
While Locky may be the top email security threat, exploit kits still pose a major risk to businesses and personal computer users. The Angler exploit kit may have died a death in early June, but Neutrino has now taken over as the EK of choice. Neutrino is targeting numerous vulnerabilities and CryptXXX crypto-ransomware is the main threat. The ransomware variant only appeared in Q2, but it has fast become a major problem and the most common EK threat.
CryptXXX may now be the most prevalent EK ransomware variant in use; however, there has been an explosion in the number of ransomware variants in 2016. Since the final quarter of 2015, the number of ransomware variants has increased by a factor of between 5 and 6 according to Proofpoint. The majority of ransomware is delivered via exploit kits, although many users are directed to malicious websites via links delivered by spam email.
Fortunately, EK activity has fallen considerably since April. Angler EK activity started to decline in late April and by the start of June EK activity had dropped by around 96%. Since the end of June, EK activity has started to increase with Neutrino the main EK now in use. Fortunately, EK activity has not returned to pre April levels. So far at least.
CryptXXX has fast become one of the most prevalent strains of ransomware, although until recently infection was only possible via malicious websites. Now researchers at Proofpoint have spotted CryptXXX ransomware emails. The group behind the attacks have added a new attack vector. CryptXXX ransomware emails contain a Word document containing a malicious macro. If the macro is allowed to run it will load a VB script into the memory which will use Powershell to make contact with the attackers’ command and control server. Once a connection has been made, CryptXXX will be downloaded onto the victim’s computer. Authors have realized the benefits to be gained from adopting an affiliate model to help infect machines and now a number of new players have entered the ransomware market.
If a “ransomware kit” is provided, individuals with little hacking skill can conduct their own ransomware campaigns. The ransomware authors can charge a nominal fee for supplying the kit, and can also take a cut on the back end. When an affiliate infects a computer and a ransom is paid, the authors receive a cut of the payment. This model works well and there is no shortage of individuals willing to try their hand at running ransomware campaigns. The CryptXXX ransomware emails are being sent by an affiliate (ID U000022) according to Proofpoint.
Identifying CryptXXX Ransomware Emails
The CryptXXX ransomware emails are being sent with a subject line of “Security Breach – Security Report #Randomnumber.” The emails contain only basic information about a supposed security breach that has occurred. The security report is supplied as an attached Word document. The body of the email contains the date, time of the attack, the provider, location, IP address, and port. The email recipient is instructed to open the file attachment to view details of the attack and find out about the actions that should be taken.
The file attachment is given a name such as “info12.doc” according to Proofpoint. If the attached Word file is opened, a Microsoft Office logo is displayed. The user is informed that the document has been created in a newer version of Microsoft Office. The content of the document will only be displayed if macros are enabled. Enabling the macros will result in the VB script being loaded. Then ransomware will then be downloaded and users’ files encrypted.
There is no fix if files are encrypted. The victim must pay the ransom or lose their files. Once an infection has occurred, files can only be recovered from backups if the victim does not pay the ransom.
CryptXXX Ransomware Still Being Delivered by Neutrino
Since the demise of the Angler exploit kit, CryptXXX was moved over to Neutrino. There was a dramatic fall in infections as activity temporarily stopped; however, Invincea recently reported a surge in activity via compromised business websites. The SoakSoak botnet is being used to scan the Internet for vulnerable websites. The websites being targeted run the WordPress Revslider slideshow plugin. Scripts are appended to the slideshow that redirect visitors to a malicious site containing Neutrino.
CryptXXX will only be downloaded if the endpoint lacks certain security tools that would detect an installation. If Wireshark, ESET, VMware, Fiddler, or a Flash debugging utility is present, the ransomware will not be downloaded.
The Tennessee Board of Professional Responsibility has issued an alert warning of a new phishing scam after a number of attorneys received a fake notification of action phishing email.
The notification of action phishing email appears to have been sent from attorney regulatory agencies and requests the recipient clicks on a link or opens an infected email attachment to view the details of a new legal complaint. If the attachment is opened or the link is clicked, crypto-ransomware will be installed on the email recipient’s device. Files will be locked and a ransom demand will appear demanding payment in exchange for a decryption key.
Alerts Issued After Spate of Phishing Emails Received by U.S Attorneys
The Center for Internet Security also issued a cyber-alert recently after becoming aware of new email scams that were targeting U.S lawyers. Lawyers in Alabama, California, Florida, Georgia, Nevada, and Tennessee have all been targeted.
Last month, more than 50 lawyers reported receiving fake emails about new discipline investigations. The emails appeared to come from state disciplinary bodies and bar associations. The emails were designed to cause concern and prompt the recipient to click on links to find out more information.
In contrast to many phishing emails, this campaign appears to be targeted. The emails contain personal information about the recipient which may fool some attorneys into thinking the messages are authentic. The emails are particularly well written, which makes it harder to identify them as phishing scams.
While personal information is included, that information is likely to have been taken from attorneys’ websites or social media websites such as LinkedIn.
Some of the emails indicate a complaint has been filed against the recipient, some claim that the individual’s bar membership has lapsed. The links contained in the emails direct users to a spoofed website where a drive-by malware download occurs.
How to Identify a Notification of Action Phishing Email
Since the latest emails have been personalized and are well written, identifying them as fake is a little harder than with standard phishing emails.
To prevent a drive-by download of malware it is important to ensure that browsers and plugins are kept up to date. Email links from unknown recipients should not be clicked, and even if the email appears to be genuine care should be exercised.
If a notification of action phishing email appears to have come from a regulatory body, the recipient should visit the appropriate website by entering in the URL directly into their browser. Hovering the mouse arrow over the link will show the real address that that the recipient will be directed to if the link is clicked. Oftentimes this will display an alternate URL.
Anti-spam email solutions such as SpamTitan offer an additional level of protection. SpamTitan blocks 99.97% of spam emails from being delivered.
A new, sophisticated Game of Thrones phishing scam has been uncovered which is targeting individuals who illegally download pirated copies of the HBO series. Game of Thrones is the most pirated TV show in history, with many individuals choosing to illegally download the latest episodes to get their GOT fix. This has not escaped the attention of scammers.
Game of Thrones Phishing Scam Emails Sent via ISPs
The scammers have used an innovative trick to make their scam more realistic. The emails claim to have been sent by IP-Echelon, the company that is used by HBO and other entertainment companies to enforce copyright claims. IP-Echelon has already sent many copyright infringement emails to illegal downloaders of movies and TV shows on behalf of a number of companies.
The Latest Game of Thrones phishing scam uses emails that appear to have been generated by IP-Echelon. The emails are extremely well written and contain the same language that is used by the organization when sending out legitimate notices to ISPs.
The ISPs, believing the copyright infringement notices to be genuine, then forward the emails to customers. Since the notice is sent by the ISP, the Game of Thrones phishing scam appears to be genuine.
The customer is told that they must settle the case promptly – within 72 hours – in order to avoid legal action. To settle the case, the customer must visit a link to review the settlement offer and make payment. Failure to do so will see that settlement offer withdrawn. The email says that the settlement about will increase as a result.
The scam has been run in the United States, although there have been a number of reports of individuals in Canada, Europe, and Australia also having been targeted with the same email scam.
A Convincing Phishing Scam That Has Fooled Many ISPs
It is unclear at this point whether the scammers are specifically targeting individuals who have accessed torrent sites and have downloaded torrent files, or whether the emails are being sent out randomly. Some individuals have taken to Internet forums to claim that they have not performed any illegal downloads, while others have been using torrent sites to illegally download TV shows and movies.
HBO has previously taken action over illegal downloaders and has used IP-Echelon to send out notices very similar to those being used by the scammers. Since the Game of Thrones phishing scam appears to be so realistic, many illegal downloaders may be fooled into making the payment. However, that payment will go directly to the scammers.
As is the case with all email requests such as this, the recipient should take steps to verify the authenticity of the email prior to taking any action. Contacting the company that sent the message – using the contact telephone number on the company’s official website – is the best way to confirm authenticity. Email recipients should never use any contact information that is sent in the email body.
Some ISPs have taken steps to confirm the authenticity of the emails and have discovered they are a scam, but not all. Many have been forwarded on by ISPs who believed the scam emails to be legitimate.
A new phishing scam has been discovered that is being used to steal the login credentials and phone numbers of employees. The new scam uses blurred images of invoices to lure victims into revealing sensitive information. In order to view the document or spreadsheet in higher resolution, the victim must supply their email address and password. It is not clear whether this blurred image phishing scam is being used for targeted attacks on businesses or whether the emails are being sent out randomly.
The Blurred Image Phishing Scam
A number of different versions of the same scam have been discovered by the Internet Storm Center, each of which uses a different document.
The initial email appears to have been sent from a legitimate company – a well-known company likely to be very familiar to most business users. HSBC for example. The emails contain corporate logos and are well written. They contain a link that must be clicked to view a purchase order or invoice.
Clicking the link will take the email recipient to a webpage where they are presented with what appears to be a legitimate document. The attackers use a screenshot of an excel spreadsheet (or word document) which appears blurred. The screenshot was taken on a low resolution yet is displayed in high resolution to ensure it cannot be read, although it is clear what the document is.
The login credentials are harvested and sent to the attacker along with the victim’s location and IP address. Users are subsequently directed to a fake Google authentication portal where they are asked to supply their phone number. If the victim enters their details and clicks to view the document, a PDF file will open.
The EU referendum that recently took place in the United Kingdom has sparked a spate of Brexit phishing attacks. Brexit – a contraction of British exit from the European Union – has caused considerable economic turmoil in the UK and a great deal of uncertainty about the future. It is not only the UK that has been affected. The decision of 52% of British voters to opt to leave the EU has had an impact on markets around the world.
Whenever a big news story breaks, criminals seek to take advantage. Cybercriminals have been quick to take advantage of the UK EU referendum result and have launched a wave of Brexit phishing attacks which trick people into downloading malware onto their computers.
The Brexit phishing attacks are being conducted using spam email messages. Attackers are sending out emails in the millions with subject lines relating to the Brexit result. The emails play on fears about the uncertainty of the financial markets, the economic turmoil that has been caused, and the political upheaval that has followed.
The emails contain malicious attachments which, if opened, install malware onto the victims’ computers. Many email messages contain links to malicious websites where drive-by malware downloads take place. Some of the emails offer victims help to keep their bank accounts and savings protected from currency fluctuations. In order to protect accounts, the victims are required to divulge highly sensitive information such as bank account details via scam websites.
The malware being sent is capable of logging keystrokes made on computers. These malicious software programs then relay sensitive information such as online banking login information to the attackers, allowing them to make fraudulent transfers.
All computer users should be extremely wary about unexpected email messages. Opening file attachments sent from unknown senders is risky and may result in malware being loaded onto computers. Ransomware can also be installed. The malicious software locks files until a ransom payment is made to the attackers.
Any email that contains a link to a news story should be deleted. The story will be covered by the usual news websites if it is genuine. Those sites should be accessed directly through the browser or via the search engines.
Organizations can protect their networks and users from Brexit phishing attacks and other malicious spam email campaigns by installing a spam filtering solution such as SpamTitan. SpamTitan captures more than 99% of spam email, preventing phishing emails from being delivered. This reduces reliance on employees being able to identify a phishing scam or malicious email.
Facebook phishing attacks are fairly common. The website has 1.65 billion active monthly users, a considerable number of which access the social media platform on a daily basis. With such a huge number of users, it is understandable that criminals often target users of the platform.
However, the latest phishing scam to target Facebook users is notable for the speed and scale of the attacks. Kaspersky Lab reports that the latest Facebook phishing attacks have been claiming a new victim every 20 seconds.
The Facebook phishing attacks took place over a period of two days, during which time more than 10,000 Facebook users had their computers infected with malware.
The phishing scam involves site users being sent a message from their ‘friends’. The messages say the user has been mentioned in a comment on a Facebook post. However, when they respond to the message they download a Trojan onto their computers and inadvertently install a malicious Chrome browser extension. In the second phase of the attack, the Trojan and the browser extension are enabled.
When the victim next logs into Facebook the login details are captured and sent to the attacker. This gave the attackers full control of the victims’ Facebook accounts. This allows them to make changes to the privacy settings, steal data, and send their own messages to all of the victims’ contacts on Facebook. The attacks were also used to register fraudulent likes and shares.
The attackers took steps to prevent the infections from being detected. The malware was capable of blocking access to certain websites which could potentially result in the victims discovering the malware infection. The websites of a number of cybersecurity sites were blocked, for instance.
The phishing attack mostly affected Facebook users on Windows computers, although Kaspersky Lab noted that Windows mobile phones were also compromised in the attacks. Individuals who accessed Facebook via Android and Apple phones were immune.
The attacks concentrated on users in South America, with Brazil the worst hit, registering 37% of the Facebook phishing attacks. Columbia, Ecuador, Mexico, Peru, and Venezuela were also heavily targeted. Attacks in Europe were mostly conducted on users in Poland, Greece, and Portugal, with Germany and Israel also hit hard.
The malware used in the latest Facebook phishing attacks is not new. It was first identified about a year ago. Kaspersky Lab reports that the attackers are most likely of Turkish origin, or at least Turkish-speaking.
What sets this phishing scam apart from the many others is the speed at which users were infected. However, the response to the attacks was also rapid. Users who discovered infections spread the news on Facebook, while the media response helped to raise awareness of the scam. Google has also taken action and has now blocked the malicious Chrome extension.
Cybercriminals are conducting CEO fraud scams with increasing frequency and many organizations have already fallen victim to these attacks. Many companies have lost tens of thousands of dollars as a result of these criminal attacks. In some cases, companies have lost hundreds of thousands or millions of dollars.
What are CEO Fraud Scams?
CEO fraud scams involve an attacker impersonating the CEO of an organization and sending an email to the CFO requesting a bank transfer to be made. The account details of the attacker are supplied, together with a legitimate reason for making the transfer. Oftentimes, these scams involve more than one email. The first requests the transfer, followed by a second email with details of the amount and the bank details for the transaction. By the time the fraudulent transfer is discovered, the funds have been withdrawn from the account and cannot be recovered.
The FBI has issued warnings in the past about these CEO fraud scams. A spate of attacks occurred in Arizona recently. The average transfer request was between $19,000 and $75,000. An April 2016 FBI warning indicated $2.3 billion in losses had been reported between October 2013 and February 2016, with CEO fraud scams increasing by 270% since January 2015.
By training all employees on the common identifiers of phishing emails and also to be more security aware, organizations can reduce the risk of attacks being successful. However, while training is often provided to employees, it is not always given to executives and the CEO. According to a recent survey conducted by Alien Vault, only 44% of IT security professionals said every person – including the CEO – received training on how to identify a phishing email.
Protecting Against CEO Fraud Scams
It is possible to take steps to prevent CEO fraud scams. Email security solutions – SpamTitan for example – can be configured to prevent emails from spoofed domains from being delivered; however, if the email comes from the account of a CEO, there is little that can be done to prevent that email from being delivered. It is therefore essential that training is provided to all members of staff – including executives – on phishing email identification techniques.
Alien Vault polled 300 IT security professionals at Info Security Europe 2016 to determine how prepared organisations were for phishing attacks and what steps had been taken to reduce risk. The results of the survey show that the majority of organisations now provide training to reduce risk, although almost one in five are not taking proactive steps to reduce the risk of phishing and CEO fraud scams.
Almost 45% of companies said they train every single person in the organization on phishing email identification techniques, while 35.4% said that most employees are trained how to identify malicious emails. 19.7% said they do not take proactive steps and deal with phishing problems as and when they occur.
37% of Executives Have Fallen for a Phishing Scam
Out of the 300 respondents, 37% reported that at least one executive had fallen for a phishing scam in the past, while 23.9% of respondents were unaware if they had. However, even though many had experienced phishing attacks, IT security professionals were not confident that such attacks would not happen again in the future.
More than half of respondents believed that company executives could fall for a scam, while nearly 30% said that if the scam was convincing, their executives may be fooled. Only 18.5% said that their executives had been thoroughly briefed and were well aware of the dangers and would not fall for such a scam.
CEO fraud scams can be extremely lucrative for attackers, and oftentimes a considerable amount of time is spent researching companies and crafting clever emails. A variety of social engineering techniques are used and the emails can be very convincing.
Training is important, but it is also vital that efforts are made to ensure the training has been effective. The best way to ensure that all individuals have understood the training is to conduct phishing exercises – Sending dummy phishing emails in an attempt to get a response. This allows IT departments to direct further training programs and ensure that weak links are addressed.
A new Microsoft Office 365 zero day vulnerability is being exploited by hackers to deliver Cerber ransomware. The latest attack is being conducted on a large scale and it has been estimated that millions of business users have already been impacted by the latest Cerber ransomware campaign.
It can be difficult to keep up to date with all of the ransomware variants currently being used by cybercriminals. The malicious file-encrypting software is constantly being tweaked and reinvented by cybercriminals. Cerber ransomware especially. The criminals behind Cerber frequently change its attack mode.
Cerber was first seen in February this year and has already been delivered using a variety of methods, most recently via the Dridex botnet. Spam emails containing malicious Word macros has been favored in the past. If allowed to run, the macros would download Cerber onto victims’ devices. Cerber would then proceed to encrypt documents, images, and a host of other file types.
Victims would be presented with a warning message on screen alerting them to the infection, and an audio file would be played to chilling effect. Cerber was unique in this respect, essentially speaking to its victims. Cerber has also been delivered using malvertising – advertisements placed in third party ad networks that direct web visitors to malicious webpages hosting exploit kits. Those exploit kits probe for browser and plugin vulnerabilities which are exploited to deliver the ransomware. That campaign mainly infected users that had failed to keep their Flash plugins up to date.
It is the rapid changes being made by the attackers that has made it so difficult to detect Cerber and prevent infections. Earlier this month, Invincea discovered that Cerber was able to manufacture new payload variants “on the fly”, allowing the attackers to bypass traditional signature-based anti-virus products. Unique hashes and payloads were being generated every 15 seconds! In tests, 40 unique hashes were discovered.
Cerber Ransomware is Now Infecting Users via Microsoft Office 365 Zero Day Vulnerability
The latest attack has bypassed many users’ anti-virus products according to security firm Avanan. It is unclear at this stage exactly how many organizations have been affected, although Avanan reports that 57% of its clients that use Office 365 have been hit.
Users who have not implemented additional email security controls have been infected via their cloud email accounts. The latest attack is bypassing the controls put in place by Microsoft and the spam emails are being delivered to end user accounts. Unfortunately, should Cerber ransomware be installed, the victims will have to recover the encrypted files from backups or pay the ransom.
The criminals behind the latest campaign may currently be exploiting the Microsoft Office 365 zero day vulnerability, but we can be sure that Cerber will continue to evolve.
To protect against Cerber ransomware attacks, business users must ensure that all patches and software updates are applied promptly.
Since ransomware is capable of infecting or deleting back up files, it is essential that backup devices are air gapped. When backups have been performed, the drives need to be disconnected.
Implementing an anti-spam solution – and not relying on Microsoft or Gmail anti-spam filters – can also help to keep businesses protected by reducing the risk of ransomware and other phishing emails from being delivered to end users.
After a period of quiet, the Necurs botnet is back in action. A number of security companies have reported a massive surge in botnet activity which started on June 21, 2016.
The Necurs botnet has previously been used to send out huge volumes of Dridex malware and Locky; a sophisticated ransomware variant that was first discovered in February 2016. It is too early to tell whether this is just a temporary spike in activity or whether the botnet will be sending emails at the levels seen before the recent lull.
Necurs botnet activity dropped off on May 31. The volume of malicious emails being sent using the botnet fell to as few as 3 million emails per day. However, the number of emails being sent surged on June 21, shooting up to around 80 million emails. 24 hours later the volume of malicious emails had doubled to 160 million. The surge in activity comes is linked to a massive spam email campaign that is delivering emails containing malicious attachments which install Locky ransomware.
It is unclear why there was a period of quiet. Security experts having been pondering this since the dramtic fall in activity on May 31.
The Necurs botnet is massive and is believed to contain approximately 1.7 million computers, spread over 7 separate botnets. It is clear that the botnet had not been taken down, although activity across all seven of the botnets stopped. In April and May of this year, spam email volume was regularly exceeding 150 million emails a day. Now the Necurs botnet appears to be back up to speed.
Around the same time as the pause in activity, Russia’s FSB security service conducted raids resulting in the arrests of approximately 50 hackers. The gang was using the Lurk Trojan to defraud banks and other targets in Russia. It is unclear whether some of those arrests resulted in a disruption to the botnet, or whether the pause was for some other reason. Numerous theories have been suggested for the three-week pause, including the sale or the botnet and issues the operators may have had with the C&C infrastructure. If the botnet has changed hands, a single organization would likely be in control as activity across all seven botnets resumed at the same time.
The resurrection of the Necurs botnet is bad news. According to Proofpoint, the resurrection of the botnet has been accompanied by a new Locky variant which has new capabilities. The latest form of Locky is better at evading detection and determining whether it is running in a sandbox. The new capabilities were detected by Proofpoint shortly before the Necurs botnet went dark.
A new Eir phishing scam has been uncovered which has prompted the Irish communications company to issue a warning to customers. Hundreds of customers received emails offering them a refund yesterday. To claim the refund, the email recipients have been instructed to login to their My Eir account. A fake link is supplied in the email which must be clicked to claim the refund.
Eir Phishing Scam Captures Credit Card Details of Customers
That link directs the email recipient to a fake webpage. The malicious website has been designed to look identical to the Eir website. Users are required to confirm their credit card details in order to obtain the refund. Those credentials are logged by the website and are sent to the criminals running the Eir phishing scam.
Eir has warned customers to be on the lookout for the fraudulent email messages and to delete them if they are received. Any individual who has fallen for the Eir phishing scam and has provided credit card details via the malicious website faces a high risk of credit/debit card fraud.
Phishing email campaigns such as this are commonplace. Attackers use a variety of social engineering techniques to get users to reveal sensitive information such as credit and debit card numbers, which are used by the attackers to make online purchases and rack up huge debts in the victims’ names.
The malicious emails can be extremely convincing. Criminals use legitimate imagery in the phishing emails to fool email recipients into believing the emails are genuine. The malicious spam messages usually contain a link that directs to victims to malicious websites where personal information must be disclosed in order to receive a refund, free gift, or to view important documents. The websites can look identical to the legitimate sites.
Spam Email Poses a Considerable Risk to Businesses
Email scams often direct victims to malicious websites containing exploit kits which probe for weaknesses in browsers and plugins and leverage those vulnerabilities to download malware.
The malware poses a considerable risk for businesses. Malware is used to gain a foothold in a computer network, which can be used to launch cyberattacks to steal valuable data or to gain access to corporate email and bank accounts.
To protect against such attacks, employees should be instructed never to use links sent in emails and to login to websites directly via their browsers. Employees should be provided with training to help them identify phishing emails and email and web spam.
Businesses should also use an anti-spam solution such as SpamTitan to capture spam and phishing emails. Preventing the messages from being delivered to end users is the best form of defense against such attacks, and reduces reliance of employees to identify phishing scams.
The FBI issued a new public service announcement which includes new business email compromise scam data. The new data indicates U.S. businesses have lost almost $960 million to business email compromise scams in the past three years, and the total losses from these scams is now almost $3.1 billion.
What is a Business Email Compromise Scam?
A business email compromise scam is a sophisticated attack on a company by scammers that attempt to trick individuals into wiring funds from corporate accounts to the bank accounts of the attackers. Businesses most commonly targeted are those that frequently make foreign transfers to international companies. The attackers must first gain access the email account of the CEO or another high level executive. Then an email is sent from that account to an individual in the accounts department requesting a bank transfer be made. Occasionally the scammer asks for checks to be sent, depending on which method the targeted organization most commonly uses to make payments.
A business email compromise scam does not necessarily require access to a corporate email account to be gained. Attackers can purchase an almost identical domain to that used by the targeted company. They then set up an email account in the name of the CEO using the same format as that used by the company. This can be enough to fool accounts department workers into making the transfer. Business email compromise scams use a variety of social engineering techniques to convince the targeted accounts department employee to make the transfer.
Business Email Compromise Scams are a Growing Problem
The FBI has previously warned businesses of the growing risk of business email compromise scams. In April this year, the FBI Phoenix Office issued a warning about a dramatic rise in BEC attacks. The data showed that between October 2013 and February 2016 there had been at least 17,642 victims of BEC attacks in the United States, and the losses had reached $2.3 billion.
New data from the FBI suggest that the problem is far worse. The FBI has now incorporated business email compromise scam data from the Internet Crime Complaint Center (IC3). 22,143 reports have now been received from business email compromise scam victims, which correspond to losses of $3,086,250,090.
Between October 2013 and May 2016, there have been 15,668 domestic and international victims, and losses of $1,053,849,635 have been reported. In the U.S. alone, there have been 14,032 victims. Since January 2015, there has been a 1,300% increase in losses as a result of BEC attacks. The majority of the funds have been wired to Asian bank accounts in China and Hong Kong.
The FBI warns of five scenarios that are used by criminals to commit fraud using BEC scams:
- Requests for W-2s or PII from the HR department – The data are used to file fraudulent tax returns in the names of employees
- Requests from foreign suppliers to wire money to new accounts – Attackers discover the name of a regular foreign supplier and send an email request for payment, including new bank details (their own).
- Request from the CEO for a new transfer – The CEO’s (or other executive) email account is compromised and a request for a new bank transfer is sent to an individual in the accounts department who is responsible for making bank transfers
- A personal email account of an employee of a business is compromised – That account is used to send payment requests to multiple vendors who have been identified from the employee’s contact list
- Impersonation of an attorney – Emails are sent from attackers claiming to be attorneys, or representatives of law firms, requesting urgent transfers of funds to pay for time-sensitive matters
To protect against BEC attacks, businesses are advised to use 2-factor authentication on all business bank transfers, in particular those that require payments to be sent overseas. Organizations should treat all bank transfer requests with suspicion if a request is sent via email and pressure is placed on an individual to act quickly and make the transfer.
The FBI recommends that businesses never use free web-based email accounts for business purposes. Organizations should also be careful about the information posted to social media accounts, in particular company information, job descriptions and duties, out of office details, and hierarchical information about the company.
The self-proclaimed Spam King, Sandford Wallace, has been sentenced to 30 months in jail for a Facebook spam campaign conducted between November 2008 and February 2009.
Wallace hacked approximately 550,000 Facebook accounts and used those accounts to post spam messages to users’ walls which directed their Facebook followers to webpages which harvested login credentials and other personal information.
For each account that was compromised, Wallace gathered details of the users’ friends and posted spam messages to their walls. Wallace used an automated script to sign into the hacked accounts and post spam messages. In total, more than 27 million spam messages were sent via those accounts. Wallace was allegedly paid for sending traffic to websites via the spam messages. Wallace’s activities earned him the nickname “Spamford” Wallace.
It has been widely reported that Wallace was a career spammer, having first made a business out of spamming in the 1990’s with a company called Cyber Promotions. The company was reportedly sending around 30 million spam emails a day.
Wallace had been found guilty of Internet offenses in civil cases in the past, resulting in a fine of $4 million in 2006 for use of malicious popup adverts and a fine of $230 million for phishing attacks via MySpace in 2008. This is the first time the spam king has received a criminal conviction for his online activities.
Wallace was indicted in 2011 for the improper accessing of Facebook accounts and for sending unsolicited adverts on three occasions, spread over a period of 4 days. He was banned from accessing Facebook, yet violated the court order resulting in a charge of criminal contempt of court. Wallace was released on a bond, and while he was due to be sentenced in December, the case had to be delayed after two of Wallace’s lawyers quit.
The Spam King’s campaigns have resulted in him being ordered to pay more than $1 billion in damages, although Wallace was unable to pay the civil fines.
Wallace was convicted of one count of fraud and related activity in connection with electronic mail and one count of criminal contempt. The Office of the United States Attorney for the Northern District of California recently announced the sentence, which was passed down by Judge Edward J. Davila.
In addition to the jail term, the spam king has been ordered to pay fines of over $310,000. Wallace could have received a maximum jail term of three years. Wallace will also be required to undergo 5 years of supervised release once the sentence has been served. That sentence begins on Sept, 7, 2016.
Spike in Spam Emails Containing Malicious Office Macros
The documents containing the shipping notices contained a malicious macro. In order to open the attached file, users were required to enable macros on their devices. Doing so would trigger a ransomware download. Email recipients who have their office settings configured to automatically allow macros to run are at particularly at risk, as simply opening the email attachment would result in Locky being downloaded onto their devices.
Proofpoint also recorded this spike in malicious spam emails, although the company put the total number of emails in the campaign at over 100 million, making this one of the largest spam email campaigns seen in recent years, and certainly one of the biggest campaigns of 2016.
The Amazon spam email campaign is being distributed using spam botnets on virtual machines and consumer devices. This campaign was notable because the attackers were able to manipulate the email headers. This made the messages appear legitimate to email recipients. Any email recipients who regularly use Amazon.com for purchases could easily be fooled into opening the file attachment.
The emails used the subject line: “Your Amazon.com order has dispatched” along with a code number, closely mimicking the emails sent up Amazon. The body of the email did not contain any text. If users want to find out which order the email refers to, they would need to open the file attachment. The emails also appear to have been sent from the Amazon.com domain, making it much harder for email recipients to determine that the messages are malicious spam.
Surge in Spam Email Highlights the Importance of Using Spam Filtering Solutions
SpamTitan captures 99.97% of spam email and prevents malicious spam emails from being delivered to inboxes. Since malicious actors are getting much better at masking their messages and making them appear legitimate, it is essential to limit the volume that are delivered to end users rather than rely on individuals to be able to identify emails as spam.
A recent report issued by the Anti-Phishing Working Group highlights worrying phishing activity trends. According to the Phishing Activity Trends Report, the number of new phishing websites is growing at an alarming rate.
A recent report published by PhishMe showed that email phishing activity has now reached unprecedented levels. Phishing email volume increased by 789% quarter over quarter. The APWG report shows that cybercriminals are also increasingly conducting web-borne attacks. Phishing websites increased by 250% from the last quarter of 2015 through the first quarter of 2016.
APWG expected to see an increase in the number of phishing websites created in the run up to the holiday season. Every year, criminals take advantage of the increased number of online purchases being made around Christmas. Many new phishing websites are created in November and December and online fraud always increases in December.
However, typically, there is a drop in spamming an online fraud in January. This year that fall did not occur. In fact, the number of new phishing websites continued to rise in January. There was a slight fall in February, before a major increase in March. According to the Phishing Activity Trends Report, in December 2015, 65,885 unique phishing websites were detected. In January 2016, the total had risen to 86,557. By March the total had reached a staggering 123,555 unique phishing websites.
Cybercriminals are most commonly targeting the retail sector and are spoofing websites in an attempt to defraud consumers. 42.71% of phishing websites target the retail sector, with the financial sector in second place with 18.67% of sites. Payment services accounted for 14.74% of sites, ISPs 12.01%, and multimedia sites 3.3%.
The phishing activity trends report indicates an increase in the targeting of cloud-based or SAAS companies, which it is claimed is driving the attacks on the retail sector.
More than 55% of phishing websites contain the name of the target brand somewhere in the URL. Attackers are concentrating the attacks on the most popular brands. By March 2016, APWG reported that 418 different brands were being targeted using phishing websites.
Phishing email campaigns are known to be sent extensively from outside the United States, although when it comes to phishing websites they are usually hosted in the United States. 75.62% of phishing websites are hosted in the US.
The United States also hosts the most phishing-based Trojans and downloaders – 62.36%. China is also being extensively targeted. China hosted 5% of phishing-based Trojans and downloaders in January. By March, the figure had risen to 13.71%.
More than 20 million new malware samples were detected at the start of 2016 – That’s an average of 227,000 new malware samples every day. The majority of new malware are Trojans, which account for 66.81% of new samples. Viruses were second (15.98%) and worms third (11.01%).
The massive rise in phishing websites highlights how important it is for caution to be exercised when purchasing online. Businesses should also take additional precautions. Web filters can be used to block phishing websites from being visited by employees. A web filtering solution – WebTitan for example – can also be used to prevent drive-by downloads of malware and ransomware.
The latest phishing email statistics released by the anti-phishing training company PhishMe show the extent to which the use of phishing has increased in recent months.
PhishMe compiles quarterly phishing email statistics and tracks the volume of phishing emails being sent. During the first three months of 2016, the volume of phishing emails increased by a staggering 789%. More than 6.3 million more phishing emails were sent in Q1, 2016 than in Q4, 2015.
According to the quarterly report, the biggest problem currently faced by personal and corporate computer users is ransomware. Ransomware emails now account for more than 93% of all phishing emails. Ransomware offers a quick payout for cybercriminals and the campaigns can be quickly developed and run. In fact, ransomware emails are being sent by criminals with little or no programming skill. They can simply purchase ransomware kits on darknet marketplaces and obtain a cut of the ransom payments that are made.
Targeted ransomware attacks are now being conducted on businesses of all sizes. Criminals are well aware that many organizations do not regularly perform backups of critical data. Even when backups are performed, many organizations do not unplug their backup devices. The latest ransomware variants are capable of deleting Windows shadow copies and encrypting backup files on connected storage devices. This gives organizations no alternative but to pay the ransom demand to recover files. The biggest threat is now Locky. Locky is delivered via spam email using JSDropper or malicious Word macros.
PhishMe’s phishing email statistics also show two other main trends. Cybercriminals are tending to concentrate on soft-targeted campaigns. Spear phishing emails target just one or two individuals, but the latest trend sees malicious emails messages sent to a group of individuals in an organization – the billing department for instance. The emails are targeting specific roles in an organization rather than specific individuals.
The increase in malicious spam email shows how important it is for organizations to employ a robust spam filtering solution – SpamTitan for example – and to also ensure that employees are informed of the high risk of phishing attacks occurring. Employees should also be instructed how to identify phishing emails and told how they should respond if they believe they have been sent a malicious email message.
A new report by anti-phishing training company PhishMe shows a marked rise in the volume of ransomware emails in March. The report shows that spam emails are now predominantly being used to deliver ransomware to unsuspecting victims. The spike in ransomware emails highlights how important it is to conduct anti-phishing training and to use anti-spam solutions to prevent the malicious file-encrypting software from being delivered to employee’s inboxes.
Spike in Ransomware Emails as Criminals Seek Easy Cash
Ransomware has been around for about a decade, yet it has not been favored by cybercriminals until recently. Throughout 2015, under 10% of phishing emails were being used to transmit ransomware. However, in December there was a major spike in ransomware emails, which accounted for 56% of all phishing emails in December. The upward trend has continued in 2016 and by March, 93% of phishing emails contained ransomware – or were used to infect users by directing them to malicious websites where drive-by downloads of the malicious software occurred.
Spam email volume has been in general decline, in no small part to the shutting down of major botnets in recent years. However, that does not mean that the threat of cyberattacks via email can be ignored. In fact, PhishMe’s figures show there has been a surge in the number of phishing emails being sent. In the first quarter of 2016, the number of detected phishing emails soared to 6.3 million, which represents a 789% increase from the volume captured in the last quarter of 2015.
Ransomware is increasingly being used by cybercriminals for a number of reasons. Ransomware is now easy to obtain and send out. Many ransomware authors offer ransomware-as-a-service to any criminal looking to make a quick buck. Not only can the ransomware be hired for next to nothing, instructions are supplied on how to use it and criminals are allowed to set their own ransoms and timescales for payment. All they need to do is pay a percentage of the ransoms they obtain to the authors.
What makes the use of ransomware even more attractive is the speed at which criminals can get paid. Time limits for paying ransoms are usually very short. Demands for payment within 48 hours are not uncommon. While phishing emails have commonly been used to obtain credit card details from victims, which then need to be sold on, criminals can run a ransomware campaign and rake in Bitcoin payments in just a few days.
The ransoms being demanded are also relatively low. This means that many individuals can afford to pay the ransom to obtain the decryption keys to unlock their files, and businesses are also likely to pay. The cost of recovering data and restoring systems, together with the lost revenue from the time that computer systems are down, is often less than the ransom being demanded.
Ransomware Is Becoming Much More Sophisticated
The latest forms of ransomware now being used – Locky, CryptXXX, TeslaCrypt, and Samas (Samsam) – are capable of spreading laterally. Not only can the ransomware infect files on a single computer, other networked computers can also be infected, as can network drives, servers, portable storage devices, and backup drives. Some forms are also capable of deleting Windows shadow copies and preventing the restoration of files from backups.
All that the criminals need is for one business computer to be infected in order to encrypt files throughout the network. That means only one end user needs to be fooled into opening an infected attachment or visiting a malicious webpage.
Ransomware emails often contain personal information to increase the likelihood of an individual clicking a malicious link or opening an infected attachment. Word files are now commonly being used to infect users. Embedded macros contain code that downloads the malicious payload.
The malicious software is sent out in spear phishing campaigns targeting one or two users in a company, such as accounts and billing department executives. Personal information is often used in the emails – names, addresses, and job titles for example – to increase the likelihood of attachments being opened and links being clicked.
As criminals get better at crafting phishing emails and the ransomware becomes more sophisticated, it is more important than ever to use anti-spam solutions such as SpamTitan to trap ransomware emails and prevent them from being delivered. SpamTitan traps 99.9% of spam emails, helping organizations protect their networks from ransomware attacks.
With 1.65 billion active Facebook accounts, the social media network is a big target for scammers, so it is no surprise that there is a new Facebook phishing scam currently doing the rounds. If the spammers behind the latest attacks can get even a tiny percentage of users to fall for the scam they could be in for a very big payday.
Latest Facebook Phishing Scam Warns of Violation of Terms of Service
The latest Facebook phishing scam threatens account holders by telling them that their accounts will be closed due to a violation of Facebook’s terms of service. The email claims that the account owner has been reported for irregularities of content and that action must be taken to correct the issue of the account will be permanently closed.
The message contains an ow.ly shortlink that users must click to verify that they are the actual owner of the account. The link contains the works “Verify” and “Facebook,” which may fool some message recipients into thinking the message is genuine.
The link included in the email is fake of course. It directs the victim to a phishing website where they are asked to supply their login credentials. If account holders are fooled into clicking the link they are likely to proceed and enter in their account login and password, which will not grant access to Facebook to remove the offending violations. It will simply give those credentials to the attackers. Victims are also asked to supply their date of birth and a security question.
Since many people often use the same passwords for multiple social media accounts, email accounts, and online banking, the potential losses could be considerable. Worse still, many individuals use the same passwords for their private accounts as they do for their work accounts. The fallout from this single scam could therefore be considerable.
With the login and password, the attackers could abuse the account and use it to send phishing messages to all of the account holder’s friends. However, the latest scam does not stop there. After supplying these details, the second phase of the scam starts. The victim is directed to a new page where they are asked for their credit card details to confirm their identity. If supplied, the details would be used to make purchases in the victim’s name
This latest Facebook phishing scam is fairly easy to spot as it contains many tell-tale signs that the notification is not real. The message starts with “Dear Customer” for a start. It would be reasonable to assume that Facebook would know the account holder’s name and would address the email to them personally. Not that Facebook sends out email notifications such as this, although many users would be unaware of that. The message also uses poor grammar, and an ow.ly link rather than a facebook.com hyperlink.
Suspected Page Forgery Facebook Scam Email Targets Business Users
Another version of this scam uses the same format as Facebook notifications sent to account holders via email. This email is harder to identify as a Facebook phishing scam. The link supplied appears to be a genuine Facebook link and the address supplied in the email also appear to be genuine. Correct English is used and the email has been very carefully crafted.
Clicking the link will take the user to a webpage that uses the Facebook logo and color scheme. The page explains there has been a violation of Facebook’s Terms of Service and that an unacceptable offer has been made using Facebook’s offer creation tool. Users are asked to secure their account if this is a mistake. To secure the account users must enter their username and password, and set a new security question. As with the other version, the account details will be used to hijack the account.
All Facebook users – businesses and individuals – should be particularly wary about Facebook emails and be wary of scams. If any Facebook messages are received, the account should be checked by logging in via the browser or using the Facebook App, never using the link supplied in the email. If there is a problem with the account, users will be informed of this when they login.
According to a recent report on spam email from anti-virus software developer Kaspersky Lab, the decline in spam email over the past few years appears to have reversed, with the first quarter of 2016 seeing a major increase in malicious spam email volume.
Major Increase in Malicious Spam Email Volume Reported by Kaspersky Lab
Over the past few years there has been a decline in the number of spam emails, as cybercriminals have sought other ways to deliver malware and defraud computer users. In 2015, the volume of spam emails being sent fell to a 12-year low. Spam email volume fell below 50% for the first time since 2003.
In June 2015, the volume of spam emails dropped to 49.7% and in July 2015 the figures fell further still to 46.4%, according to anti-virus software developer Symantec. The decline was attributed to the taking down of major botnets responsible for sending spam emails in the billions.
Malicious spam email volume has remained fairly constant during 2015. Between 3 million and 6 million malicious spam emails were detected by Kaspersky Lab throughout 2015; however, toward the end of the year, malicious spam email volume increased. That trend has continued in 2016.
Image source: Kasperky Lab
Wide Range of Malicious Files Being Sent in Spam Email
While it was common for virus-loaded executable files to be sent as email attachments, these are now commonly caught by email filters and are marked as spam. However, spammers have been developing new methods of getting past traditional webmail spam filters. The spam emails intercepted by Kaspersky Lab now contained a wide variety of malicious files.
One of the most common methods now used by spammers is to send office documents infected with malicious macros. Microsoft Word files with the extension DOC and DOCX are commonly used, as are rich text format files RTF, Adobe PDF files, and Microsoft Excel spreadsheets with the extensions XLS and XLSX.
These file formats are commonly opened as many end users are less suspicious of office documents than they are about ZIP, RAR, and EXE files. Most office workers would know not to open a EXE file that was emailed to them by a stranger, yet an office document – a file format they use on a daily basis – is less likely to arouse suspicion.
Instead of the emails containing the actual malware, virus, or ransomware payload, they contain Trojan downloaders that download JS scripts. Those scripts then perform the final stage of infection and download the actual malware or ransomware. This method of attack is used to bypass anti-virus protections.
Web Filters and Email Spam Filters Should be Used to Reduce the Risk of a Malware Infection
There has been an increase in drive-by downloads in recent years as attackers have lured victims to websites containing exploit kits that probe for vulnerabilities in browsers and browser plugins. Visitors are redirected to these malicious websites when visiting compromised webpages, via malvertising, and malicious social media posts. While drive-by downloads are still a major threat, the use of web filters and anti-virus software browser add-ons are blocking these malware downloads and malicious websites.
Email is still a highly effective way of getting past security defenses and getting end users to install malware on their devices. Carefully crafted emails that include unique text increase the likelihood of the scammers getting users to open malicious attachments. Oftentimes, the messages include personal information about the recipient such as their name or address. This has helped the spammers to get the victims to take the desired action and run malicious macros and install malware.
It may be too early to tell whether spam email volume has only temporarily spiked or if there is a reversal in the decline of spam, but organizations and individuals should remain vigilant. The increase in malicious spam email volume should not be ignored.
Staff members should receive regular training on how to identify malicious email messages and phishing scams. It is also a wise precaution to use a robust spam filter such as SpamTitan. SpamTitan blocks 99.97% of malicious spam email messages, dramatically reducing the probability of malware, ransomware, adware, and spyware being installed.
Scammers are constantly coming up with crafty ways to fool computer users into revealing login credentials and installing malware, with the latest speeding ticket email scam being used for the latter. Emails are being sent to individuals claiming they have been caught driving too fast and are sent a link to click to pay their speeding ticket.
If the targeted individual clicks on the link contained in the spam email they will be directed to a malicious website that will download malware onto their computer.
This particular scam has been used to target drivers in Philadelphia. While the majority of spam emails are sent out randomly in the millions in the hope of fooling some individuals into clicking on malicious links, this particular campaign is anything but random. Individuals are being targeted that are known to have exceed the speed limit.
Not only have the attackers obtained the email addresses of their targets, they have also send details of where the individual exceeded the speed limit. So how is this possible?
This particular speeding ticket email scam is understood to have been made possible by the attackers hacking a Smartphone app that has access to the GPS on the phone. The attackers use location data and the phones GPS to determine which individuals have exceeded the speed limit. They are then sent a speeding ticket scam email telling them to click on a link where they can see details of their vehicle license plate in the location where the infraction took place. They are also informed of the speed limit in that location together with speed that the individual was travelling. The speeding driver is told he or she has 5 days to pay the citation.
While this speeding ticket email scam could easily be used by the attackers to obtain credit card details or phish for other information, it appears to only be used to install malware. Clicking on the link in the email to view license plate details does not actually reveal the image. It silently installs malware.
The police department in Tredyffrin, PA, where drivers were targeted with this speeding ticket email scam, has not cited callers for their speeding violations when they have called to query the fine, even when they have confessed to speeding over the phone.
How to Protect Yourself Against Email Scams
This speeding ticket email scam is particularly convincing as it uses real data to fool users into clicking on the malicious link. Many spam email campaigns now use personal information – such as real names and addresses – to fool targets into opening infected email attachments or clicking on malicious links. This type of targeted spear phishing email is now all too common.
To protect against attacks such as this, there are a number of steps that should be taken.
- If contacted by email and asked to click a link, pay a fine, or open an attachment, assume it is a scam. Try to contact the individual or company to confirm, but do not use the contact information in the email. Perform a search on Google to obtain the correct telephone number to call.
- Carefully check the sender’s email. Does it look like it is genuine?
- Never open email attachments from someone you do not know
- If you receive an email offering you a prize or refund, stay safe and delete the email
- Ensure that anti-virus software is installed on your computer and is up to date.
File-encrypting ransomware is now one of the main UK cybersecurity threats. Rather than stealing sensitive corporate data, criminals have taken to locking it with powerful encryption to prevent businesses from performing day to day functions. Without access to data, business often grinds to a halt.
Ransomware is nothing new, but over the past few years it has become much more popular with cybercriminals who are increasingly targeting businesses. If criminals can succeed in breaching businesses’ security defenses and locking critical files, a ransom can be demanded in order to supply security keys to unlock the encryption. If no viable backup copy exists, businesses may be left with no alternative but to give in to attackers’ demands. Those demands include sizable payments in Bitcoin – A virtually anonymous currency.
Ransomware attacks in the United States have attracted the headlines, but across the pond, ransomware attacks on UK businesses have also been increasing. According to the latest research from ESET, ransomware is now one of the main UK cybersecurity threats accounting for more than a quarter of threats. In the week of April 19 to 26, 26.16% of threats involved ransomware.
How to Block Ransomware Infections
Unfortunately, there is no single method of blocking ransomware infections that is 100% effective, although by using a multi-layered approach, small to medium-sized businesses can greatly reduce the probability of ransomware being installed on their computers and networks.
Ransomware is installed via a number of different methods, although one of the most common methods of ransomware delivery is spam email. Spam email is used to send out malicious attachments that install malware, which in turn installs ransomware on computers. One of the most common methods of infection is Word documents containing malicious macros.
Attackers also use emails containing malicious links. End users are enticed to click those links using social engineering techniques. One click is often all that is required to install ransomware. While it is possible to train employees to be more security aware, all it takes is for one member of staff to install malware for a network to be encrypted. The latest strains of ransomware are capable of encrypting files on single computers, connected USB drives, and network drives. It is important to provide staff training, but a software solution should also be used to block spam emails and prevent them from being delivered.
SpamTitan can keep an organization well protected from malware and ransomware infections. SpamTitan uses two leading anti-virus engines – Kaspersky and ClamAV – to block the vast majority of spam email. SpamTitan detects and blocks 99.98% of spam email, which prevents end users’ spam and phishing email detection skills from being put to the test.
SpamTitan blocks malicious emails, infected email attachments, and links to phishing websites and sites where drive-by downloads of malware take place. This single software solution can help organization mitigate the risk from many of the main UK cybersecurity threats.
If you want to block ransomware and malware and reduce the time your employees spend sifting through spam email, contact the sales team today for further information or sign up for a free SpamTitan trial.
Businesses have been put on alert following the discovery of a new personalized phishing scam that attempts to trick users into installing malware on their company’s computers. These new personalized phishing scam emails are primarily being used to spread CryptoWall ransomware, although that is far from the only payload delivered.
New Personalized Phishing Scam Delivers Wide Range of Malware
The new scam is also being used to deliver the Arsnif/RecoLoad POS reconnaissance Trojan to organizations in the retail and hospitality industries, as well as the Ursnif ISFB banking Trojan.
The current attack does not target all employees. Instead it is used to try to install malware on the computers of users with elevated network privileges such as senior executives, CFO’s, senior vice presidents, CEO’s, heads of finance, and company directors. These individuals not only have access to a far greater range of data, they are also likely to have access to corporate bank accounts.
If the payload is delivered it can result in POS systems being infected, access to bank accounts being gained, as well as widespread data encryption with ransomware. Once single email could cause a considerable amount of damage. The emails are currently being used to target organizations in the financial services, although the retail, manufacturing, healthcare, education, business services, technology, insurance, and energy sectors have also received large volumes of these emails.
What makes this particular phishing campaign stand out is the fact that the emails have not been delivered to random individuals. Many spammers send out phishing emails in the millions in the hope that some individuals will respond. However, this is a personalized phishing scam targeting specific individuals. Those individuals have been researched and the emails include data specific to the target.
Each email refers to the recipient by name and includes their job title, address, and phone number in the body of the email. The subject is specific, the email crafted for a particular industry, and the attached files and links have been named to make them appear genuine. The emails have also been well written and do not contain the spelling and grammar mistakes typical of spam email.
A personalized phishing scam such as this is not usually conducted on such a large scale. Spear phishing emails are usually send to just a handful of individuals, but this personalized phishing scam is being sent to many thousands of people, in particular those in the Unites States, United Kingdom, and Australia.
The data used in the email body could have been harvested from a social media site such as LinkedIn, although the scale of the attack suggests data has been obtained from elsewhere, such as a previous cyberattack on another company such as a supplier or an Internet site. Companies that do not use a robust spam filter such as SpamTitan are particularly at risk.
Eastern European hackers may only have had access to GozNym banking malware for a few days, but they have already used the malicious software to make fraudulent bank transfers from more than two dozen bank accounts. The new malware is primarily being used to target banks and credit unions, although the attackers have also used the malware to attack e-commerce platforms. 22 attacks have been conducted on financial institutions in the United States with a further 2 attacks in Canada. So far the attackers behind the GozNym banking malware have managed to steal at least $4 million from U.S and Canadian banks.
GozNym Banking Malware Combines Gozi ISFB with Nymaim Source Code
As the name suggests, GozNym banking malware was developed by combining two different malware strains – Nymaim and Gozi ISFB.
IBMs X-Force Research team believe the new malware is the work of the team behind Nymaim malware, as the source code of Nymaim is understood to be only held by the original developers of the malware. The source code for Gozi ISFB malware has previously been leaked on two occasions. X-Force analysts think the Nymaim malware developers obtained that source code and used the best parts to form the new hybrid Trojan.
Nymaim malware has previously been used almost exclusively as a method of ransomware delivery, although the group behind the malware started using it as a banking Trojan late last year. Nymaim malware is a two stage malware dropper that is loaded onto computers using an exploit kit.
Links to a website containing the Blackhole Exploit Kit are sent via spam email. Once Nymaim has been loaded onto a computer, the second payload is deployed. In the case of GozNym banking malware the second stage is the running of Gozi ISFB code.
GozNym banking malware is stealthy and persistent. The malware remains dormant on a computer until the user logs into their bank account. When account details are entered, GozNym records the login credentials and silently sends them to the attackers’ command and control server. If GozNym banking malware is installed, the user will be unaware that their banking sessions have been compromised.
IBM recommends using adaptive malware detection solutions to reduce the risk of an attack. Anti-spam solutions such as SpamTitan can prevent emails containing the malicious links from being delivered, while WebTItan web filtering solutions can be used to block websites containing malicious code and exploit kits.
With new malware constantly being developed – around 1,000,000 new malware samples are now being released every day according to Symantec – organizations now need to implement sophisticated multi-layered defenses to protect their networks from malware infections.
Over the past three years business email compromise scams have been conducted with increasing regularity. However, over the past year the number of business email compromise scams reported to the Federal Bureau of Investigation (FBI) have increased dramatically.
Since January 2015, the FBI reports there has been a 270% increase in BEC attacks. FBI figures suggest the total losses from business email compromise scams since October 2013 has risen to $2.3 billion. Reports of successful BEC scams have been sent to the FBI from over 79 different countries around the world, which have affected more than 17,642 businesses.
Business email compromise scams involve the attacker gaining access to a corporate email account, such as that of the CEO, and requesting a bank transfer be made to their account. An email is sent from the CEO’s account to an accounts department employee, and all too often the transfer is made without question.
Unfortunately for U.S Businesses, BEC attacks are likely to increase as more cybercriminals get in on the act. Security experts have warned that the situation is likely to get a lot worse before it gets better. With the average fraudulent bank transfer between $25,000 and $75,000 and considerable potential to obtain much higher sums, criminals are more than willing to conduct the attacks.
A recent report from Dell SecureWorks indicates some hackers are selling their services on underground marketplaces and are offering access to corporate email accounts for just $250. Since cybercriminals could buy access to corporate email accounts, even relatively unskilled criminals could pull off a BEC scam and potentially have a million dollar+ payday. A number of large corporations have been fooled by these scams and have recorded losses of well over $1 million.
Business Email Compromise Scams Can Be Highly Convincing
BEC scams are convincing because even with security training, staff members tend to assume attacks will come from outside their organization. Employees are suspicious about emails that request the disclosure of login credentials, and a request to make a bank transfer that has not come from within an organization is likely to be immediately flagged as a scam.
However, when the CEO sends an email to a member of the accounts department requesting a bank transfer, many employees would not think to question the request. The person arranging the transfer would be unlikely to call the CEO to confirm payment. The transfer may go unnoticed for a number of days, by which time the funds would have been withdrawn from the attackers account and would be impossible to recover.
To conduct this type of attack the attacker would need to gain access to the email account of the CEO or an executive in the company who usually sends bank transfer requests to the accounts department. Once access has been gained, the attacker can read emails and learn the terminology typically used by that member of staff.
An email can then be written in the same language used by that individual. This ensures that the email does not rouse suspicions. Attackers research the transfer requests that are typically made and set the dollar amounts accordingly.
Since the account transfers are made to bank accounts outside the United States, the companies most frequently targeted are those that often make International payments. To the targeted accounts department employee, the request would seem perfectly normal.
How to Reduce the Risk of Employees Falling for BEC Scams
There are a number of ways that organizations can reduce the risk of employees falling for business email compromise scams. SpamTitan could not block a request sent from a compromised email account, but oftentimes attackers spoof email addresses. They purchase a domain that looks very similar to the targeted company, often transposing two letters. Oftentimes a domain is purchased replacing a letter “i” or an “L” with a “1”. If the email address of the sender is not carefully checked, this could well go unnoticed. SpamTitan can be configured to automatically block these spoofed email addresses to prevent these emails from being delivered.
To prevent employees from falling for business email compromise scams sent from compromised email accounts, policies and procedures should be introduced that require all account transfers to be verified by two individuals. Large transfers should also, where possible, be confirmed by some means other than email. A quick call to sender of the email for instance.
Organizations that choose to do nothing could regret failing to take precautions. Take the Austrian Airline parts company FACC for example. It reportedly lost approximately $55 million to such a scam.
Vulnerabilities in Adobe Flash Player are discovered with such regularity that news of another raises few eyebrows, but the latest critical vulnerability – discovered in Adobe Flash Player 188.8.131.52 and earlier versions – is a cause for concern. It is already being exploited by hackers and is being used to infect users with ransomware.
Any device that is running Adobe Flash Player 184.108.40.206 (or earlier) is at risk of the vulnerability being exploited and malicious file-encrypting software being installed. The latest vulnerability can be used to attack Windows, Macs, Linux systems and Chromebooks, according to ProofPoint, although Adobe reports that the vulnerability only affects Windows 10 and earlier versions running the vulnerable versions.
Flash vulnerabilities are usually exploited by visiting malicious websites or webpages that have been compromised and infected with exploit kits. Those exploit kits probe for a range of weaknesses, such vulnerabilities in Adobe Flash Player, and exploit them to download malware or ransomware to the user’s device.
These drive-by attacks occur without users’ knowledge, as the downloaded file is not displayed in the browser and is not saved to the download folder. It is also difficult to determine whether a website has been compromised or is malicious in nature without software solutions that analyze the website content.
Vulnerabilities in Adobe Flash Player Exploited to Deliver Cerber and Locky Ransomware
The latest attack uses the Magnitude exploit kit. The fact that it is Magnitude suggests the latest ransomware attacks are the work of an individual cybercriminal gang. That gang has acted quickly to include the latest Flash vulnerability into Magnitude.
According to Trend Micro, the vulnerability is being used to deliver Locky ransomware – the malicious file-encrypting software that has been used to attack hospitals in the United States in recent weeks. Locky was reportedly the ransomware used in the attack on Hollywood Presbyterian Medical Center in February. That infection cost the healthcare organization $17,000 to remove, not to mention the cost of attempting to remove the infection and restore backup files prior to the ransom being paid.
ProofPoint suggests the vulnerability is being used to deliver Cerber ransomware. Cerber is a new ransomware that has was released in the past month. It can be used to encrypt files on all Windows versions, although not those in Russian.
Cerber and Locky are being downloaded via malicious websites, although these are typically not visited by the vast majority of Internet users. In order to get traffic to these sites the attackers are using spam email containing malicious attachments.
In contrast to many malicious spam emails that install malware using executable files and zip files, the attackers are using Word documents containing malicious macros. The macros do not download the ransomware directly, instead they direct the victim, via a number of redirects, to a malicious site where the drive-by download takes place.
The vulnerability, named as CVE-2016-1019, will crash Adobe Flash when it is exploited. Adobe reports that the vulnerability exists in 220.127.116.11. Trend Micro says the exploit will not work on versions 18.104.22.168 and 22.214.171.124, only on Flash 126.96.36.1996 and earlier versions due to mitigations put in place by Adobe.
ProofPoint’s Ryan Kalember said that the exploit has been engineered to only work on earlier versions of Flash and that attacks have been degraded to evade detection. All versions of Flash could potentially be used for the attack should the criminals behind the Magnitude exploit kit so wish.
Of course, this is just one of many vulnerabilities in Adobe Flash Player that can be exploited and used to deliver ransomware or other forms of malware. To prevent attacks, sysadmins should ensure that all devices are updated to the latest version of the software. Adobe said it was releasing a security update to address the vulnerability on April 7, 2016.
Vulnerabilities in Adobe Flash Player are addressed with updates, although there are two software solutions that can help to protect users from attack. Anti-spam solutions such as SpamTitan can be used to prevent spam email from being delivered, reducing the risk of end users opening Word documents infected with malicious macros.
WebTitan products tackle these attacks by blocking malicious websites, preventing users from visiting sites where drive-by downloads take place. There is usually a wait while vulnerabilities in Adobe Flash Player are addressed, and these two solutions can help keep devices malware free until updates are applied.
The past two months have seen a number of healthcare organizations attacked by cybercriminals; however, the MedStar Health ransomware attack discovered on Monday this week must rank as one of the most severe.
The MedStar Health ransomware attack is the latest in a string of attacks on U.S. healthcare organizations, as hackers up the ante and go for much bigger targets where the potential rewards are greater. It would appear that the 10-hospital health system will not need to pay a ransom to regain access to its data, but for three days MedStar Health has been forced to work without access to some of its computer systems after they were shut down to prevent the spread of the infection.
MedStar Health Ransomware Attack Affects 10 Hospitals and More than 250 Outpatient Facilities
MedStar Health is a large U.S health system operating more than 250 outpatient facilities and ten hospitals in the Washington D.C., area. On Monday morning, a virus was discovered to have been installed. The infection triggered emergency IT procedures and rapid action taken to limit the spread of the virus. Three clinical information systems were shut down, including email and the electronic health record system used to record and view patient data.
Without access to email and patient data, services at the hospital were slowed although business continued as close to normal as possible. No facilities closed their door to patients. However, in the 48 hours since the virus was discovered, IT security teams have been working around the clock to bring systems back online. Yesterday, MedStar Health reported that systems were being brought back online with enhanced functionality added bit by bit.
MedStar Health has kept the media and patients notified of progress via social media. The health system reported that “The malicious malware attack has created many inconveniences and operational challenges for our patients and associates.”
While no information was initially released on the exact nature of the computer virus that was discovered to have infiltrated its systems, a number of sources indicate the malicious software was ransomware. It has since emerged that the MedStar Health ransomware attack involved a ransomware from the Samsam family. The ransomware is also known as MSIL and Samas. The attack occurred at the Union Memorial Hospital in Baltimore.
Some computer users were presented with a message demanding a ransom to unlock files. The Baltimore Sun reported that the MedStar Health ransomware attack saw attackers demand a ransom of 45 Bitcoin (approximately $18,500) to unlock all 18 computers that were infected, with an offer to unlock one machine for 3 Bitcoin (approximately $1233).
FBI Issued Warning About Samsam Ransomware on March 25
The FBI reached out to businesses for assistance dealing with the latest ransomware threat from Samsam. While many ransomware infections use email as the vector, Samsam is installed via a tool called JexBoss. JexBoss is used to discover a vulnerability that exists in JBOSS systems. This attack is not conducted using phishing or website exploit kits, instead it works by compromising servers and spreading the infection laterally.
The vulnerability exploited is in the default configuration of the Boss Management Console (JMX) which is used to control JBoss application servers. In its default state, JMX allows unsecured access from external parties and this is used to gain shell access to install the ransomware.
Once a web application server has been infected, the ransomware does not communicate with a command and control server, but will spread laterally and to infect Windows machines, hence the need to shut down systems. The MedStar Health ransomware attack could have been much more severe had rapid action not been taken.
This attack highlights just how important it is to ensure that all systems are patched and default software configurations are changed. Other attacks recently reported by healthcare organizations in the United States have involved Locky ransomware, which is spread via exploit kits on compromised websites and via email spam. Healthcare organizations can protect against those attacks by using web filtering and anti-spam solutions. However, it is also essential to train staff never to open email attachments from unknown sources.
It is getting harder for cybercriminals to deliver malware via email, so attack methods have had to become more sophisticated; the latest attempt uses a malicious PNG file to deliver a banking Trojan.
Simply sending malware as an attachment in a spam email is certain to result in some unsuspecting users’ computers being infected, but cybercriminals are now having to use more advanced techniques to evade detection and get past spam filters and antivirus software. The latest attack method is an example of how attackers are using much more sophisticated methods to evading detection.
Malicious PNG File Used to Infect Windows, OS X, and Linux Machines
A new campaign has been discovered by SecureList which is being used, at present, to attack computers in Brazil. However, while the majority of victims are located in Brazil, the malware is also being used to attack users in Spain, Portugal, the United States and beyond.
To evade detection, the attackers have encrypted a malicious payload in a malicious PNG file – a common image format many people do not usually associate with malware.
The image file is not attached to an email and sent in a spam message, instead the initial attack takes place using a PDF file containing a malicious link. The PDF file is sent out in spam emails which use social engineering techniques to fool users into opening the attachment. The PDF file does not contain any malicious code, instead it uses a link to infect users. Clicking the link in the PDF file initiates the infection process.
The link is used to get users to download a malicious Java JAR file, which in turn downloads an infected ZIP file. The zip file contains a number of other files, including a malicious PNG file, or file with a PNG header. Researchers analyzed the binary file and determined that the PNG file size was much larger than it should be for the size of the image.
Further analysis showed how the malicious PNG file was loaded to the memory – using a technique called RunPE which is used by hackers to hide malicious code behind a legitimate process. In this case that process is iexplore.exe.
The malicious PNG file cannot infect a user on its own, as a launcher is required to decrypt the contents of the file. The attackers send the PDF file to start the infection process. Since the zip file contains the PDF extension, users downloading the file are likely to double click to open, thus infecting their systems. Since the malicious code in the PDF file is encrypted, it is not picked up by antivirus software. However, SecureList points out that the malicious files used in this attack are picked up by Kaspersky Lab products.
A new wave of spam email has prompted antivirus companies to issue a warning about emails infected with Nemucod malware. The emails are rapidly spreading around the globe, with Japan currently the worst hit; however, the prevalence of infected spam email is also particularly high in Europe, Australia, Canada, and the United States.
Nemucod Malware Used to Infect Devices with Teslacrypt and Locky Ransomware
Nemucod malware is a Trojan downloader that is used to install a payload of ransomware. Currently Nemucod malware is being spread via spam email and is being used to download Locky and Teslacrypt ransomware onto the devices of anyone who opens the infected email attachments.
In contrast to many malware-infected emails which contain numerous grammatical and spelling mistakes, the emails being used to spread this nasty malware are well written and convincing. The emails claim the attachment is an invoice or an official document such as a notice requiring the target to appear in court.
As we have previously reported, Teslacrypt and Locky ransomware are particularly nasty ransomware. On download they search the user’s computer for a wide variety of file types and lock all of those files with powerful encryption. They will also search for files on attached portable storage devices, virtual devices, and network drives. Locky is also capable of removing volume shadow copies (VSS) making it impossible for infected users to restore their devices to a point before the ransomware infection.
Documents, images, spreadsheets, system files, and data backups are all encrypted. Locky has been programmed to encrypts hundreds of file types. Fortunately, there are a number of steps that can be taken to prevent malware and ransomware infections.
How to Prevent a Ransomware Infection
Steps can be taken to reduce the risk of ransomware being installed, but even the best defenses can be breached. It is therefore also essential to ensure that all critical data files are backed up regularly. If a daily backup is performed, at worst, an organization should only lose a maximum of 24 hours of data.
It is essential that once backups are made, the drive uses to store the backup files is disconnected. Some ransomware variants are capable of scanning network drives and can encrypt backup files on connected backup devices.
Simply receiving a malicious spam email that has been infected with malware will not result in a device being infected. A device will only be infected if an end user opens the infected attachment.
The best way to defend against ransomware is never to open email attachments that have been sent from unknown individuals. While this is straightforward for individual users, for businesses it is harder to ensure that no member of staff will be fooled into opening an infected email attachment.
It is therefore essential to provide all members of staff with security training to ensure they are aware about best practices to adopt to reduce the risk of installing ransomware. However, all it takes is for one member of staff to open a malicious email attachment for the network to be infected. For peace of mind, a robust spam filtering solution for businesses should be implemented. SpamTitan blocks 99.9% of all spam email, drastically reducing the risk of ransomware and other malicious emails from being delivered to end users.
Locky ransomware may be a relatively new threat for IT security professionals to worry about, but it has not taken long for the malicious malware to make its mark. It has already claimed a number of high profile victims and is fast becoming one of the most prevalent forms of ransomware.
Early last month Hollywood Presbyterian Hospital in California experienced a ransomware attack that took some of its systems out of action for a week until a ransom demand of $17,000 was paid and the hospital’s EHR was decrypted. During that week, staff at the hospital were forced to record data on paper, were unable to check medical records, and X-Ray, CT scans and other medical imaging files were inaccessible. The hospital was not targeted, instead it was the victim of a random attack. That attack was linked to Locky ransomware.
Locky Ransomware Capable of Encrypting Files Stored on Network Drives
Locky ransomware infections occur via spam email messages and it appears that Hollywood Presbyterian hospital’s systems were infected via an email campaign. Locky ransomware is not delivered via spam email directly, instead infection occurs via a malicious Word macro.
When the macro is run, the malicious code saves a file to the disk and downloads the ransomware from a remote server. Upon download the malware searches for a range of file types located on the device on which it is saved, as well as searching portable drives, virtual devices, and network drives to which the computer is connected. Volume Snapshot Service (VSS) files are also removed, removing the option of restoring via Windows backup files.
Staff training on malicious file detection often covers common file types used to mask malicious software such as screensaver files (SCR), executables (EXE), and batch files (BAT). In the case of Locky ransomware, users are more likely to be fooled as infections occur as a result of Word document (DOC) macros. Any user who receives and opens an infected Word document will automatically download Locky to their computer if they have macros set to run automatically. Since users are instructed to enable macros upon opening the infected document, many may do so in order to read the contents of the file.
According to Trustwave SpiderLabs, 18% of the spam emails it had collected over the course of the past week were ransomware, and Locky is believed to comprise a large percentage of those emails. The ransomware is being delivered by the same botnet that was used to send out Dridex malware last year. While the mastermind behind the Dridex banking malware, Moldovan Andrey Ghinkul, has now been apprehended and extradited to the U.S, the botnet infrastructure is being used for this much simpler attack.
The attacks may be simpler but they are providing to be effective. According to Fortinet, over three million hits have been recorded from the Command and Control server used to communicate with Locky.
The infections are unlikely to end until the botnet is taken down. In the meantime, it is essential to exercise caution. While the ransomware does not attack Russian systems, all other users are at risk. Businesses in particular should take action to reduce risk, such as advising staff of the threat of infection via Word files and Zip files. Using a spam filtering solution such as SpamTitan to block malicious attachments is also strongly advisable to prevent malicious emails from being delivered to staff inboxes.
A number of new tax season scams have been uncovered in recent weeks, with one in particular causing concern due to the sheer number of victims it has already claimed. Over the past three weeks, four healthcare providers in the United States have been added to the list of victims. The four healthcare providers have recently announced members of staff have fallen for a W-2 phishing scams and have emailed lists of employees to scammers. Names, Social Security numbers and details of employee earnings have been disclosed.
Healthcare Providers Targeted by New Tax Season Scams
Healthcare HR and payroll staff are being targeted by scammers attempting to gain access to the names, contact details, and Social Security numbers of hospital employees with a view to using the data to commit tax fraud. The latest tax season scams are convincing. The scammers find out the names of staff working in the HR and payroll departments who are likely to have access to employee W-2 forms. A spear phishing email is then sent to the employees requesting a list of W2 copies of employee wage and tax statements for the previous year. They are instructed to compile the lists and enter them in a spreadsheet or PDF and email them as soon as possible.
What makes the scams convincing, and employees likely to respond, is the requests appear to come from within the organization and appear to have been sent by either the CEO or a senior executive. The emails appear to have been sent from the correct email address of the CEO or executive, leading the employees to believe the requests are genuine.
The “From” email address is usually masked so that it appears genuine; although it is not. A reply to the email will be sent outside of the company to an email account being monitored by the scammers. In some cases, domains have been purchased that are very similar to those of the target organizations. Usually two letters have been transposed making the domains appear genuine. An email account is then set up with the same format as used by the company. A quick glance at the email address may not rouse any suspicion.
It may take days or weeks before these tax season scams are detected. By that time, fake tax returns are likely to have been filed in the names of the victims.
HR and payroll staff must be particularly vigilant at this time of year as tax season scams are rife. However, the rise in number of successful phishing attacks suggests that payroll and HR staff have not received refresher training on the dangers of phishing. With attacks still taking place, now is a good time to issue an email bulletin to all staff with access to employee data to warn them of the risk, and to advise them to exercise extreme caution and not send any employee data without checking and double checking the validity of the email request.
IRS Issues New Warning About W-2 Phishing Scams
At the start of February, the IRS issued a warning about the sharp rise in tax season scams this year. Just over a month into tax season and record number of phishing scams and tax season-related malware had been discovered. In January, 1,026 reports of tax-related incidents had been reported, which is an increase of 254 over the previous year.
The incidents continued to increase throughout February, with last year’s total of 1,361 already having been exceeded in the first two weeks of the month. The high volume of tax season scams reported in February prompted the IRS to issue another warning on February 29, with the W-2 phishing scams causing particular concern. So far this tax season, reported tax-related malware and phishing attacks have increased 400% year on year.
Last week a healthcare provider had its electronic health record system locked by ransomware; now a Zika virus email scam has been uncovered, showing the depths that some hackers and cybercriminals will stoop to in order to make a quick buck.
The latest email scam takes advantage of the public interest in the Zika virus epidemic in Brazil. Since April last year, the number of reported cases of Zika fever has grown. Zika fever is caused by the transmission of the Zika virus by Aedes mosquitos. Zika fever produces similar symptoms to Dengue fever, although the symptoms are often milder.
Scientists have also been alerted to a rise in the number of cases of microcephaly reported in Brazil. Microcephaly is a birth defect resulting in babies being born with a smaller than average head as well as other poor pregnancy outcomes. The rise in microcephaly has been linked to the increase in cases of Zika virus.
While no concrete evidence has been uncovered to suggest that pregnant women contracting Zika are likely to give birth to babies with microcephaly, there is concern that Zika can cause the birth defect. The World Health Organization (WHO) reports the virus has now spread to 23 countries. People are naturally worried. Women in Brazil and Columbia have been told to avoid becoming pregnant and hold off having children, while the government in El Salvador has told women not to get pregnant until 2018.
A potentially global health issue such as Zika is naturally a worry for any woman looking to start a family, and understandably the latest news about the virus is likely to be read. Scammers have been quick to take advantage of the media interest, and a scam has been developed to take advantage and infect computers with malware
Zika Virus Email Scam Delivers JS.Downloader Malware
The Zika virus email scam is currently doing the rounds in Brazil and is being sent in Portuguese. The Zika virus email scam appears to have been sent from Saúde Curiosa (Curious Health), which is a legitimate health and wellness website in Brazil. The email contains an attachment infected with JS.Downloader. JS. Downloader is a malware that is used to download malicious malware to infected users’ devices.
The subject line of the email is “ZIKA VIRUS! ISSO MESMO, MATANDO COM ÁGUA!” which translates as Zika Virus! That’s Right, killing it with water!” The email tells the recipient to click on the link contained in the email to find out how to kill the mosquitos that carry the virus, although the email also contains a file attachment which the email recipient is urged to open. Doing so will install the malware onto the user’s device. The link directs the user to Dropbox with the same outcome.
Anyone receiving an unsolicited email with advice about the Zika virus, regardless of the language it is written in, should treat the email with suspicion. This is unlikely to be the only Zika virus email scam sent by cybercriminals this year. With the Olympics taking place in Brazil in the summer, criminals are likely to use topics such as the Zika virus to spread malware.
If you want information about Zika, check the WHO website. If you receive an Zika virus email, delete it and do not click on any links in the email or open any attachments.
Over the past 12 months, cybercriminals have used ransomware with increasing frequency to extort money out of businesses, leading some security experts to predict that healthcare ransomware infections would become a major problem in 2016.
Would cybercriminals stoop so low and attack the providers of critical medical care? The answer is yes. This week a U.S. hospital has taken the decision to pay a ransom to obtain the security keys necessary to unlock data that had been encrypted by ransomware. The attack does not appear to have been targeted, but the ransom still needed to be paid to unlock the hospital’s electronic medical record system.
Last year, Cryptowall infections were regularly reported that required individuals to pay a ransom of around $500 to get the security key to recover files. However, when businesses accidentally install ransomware the ransom demand is usually far higher. Cybercriminals can name their price and it is usually well in excess of $500.
Healthcare Ransomware Infection Results in Hospital Paying $16,664 to Unlock EHR
While businesses have been targeted by cybercriminal gangs and have had their critical data locked by ransomware, it is rare for healthcare providers to be attacked. The latest healthcare ransomware infection does not appear to have been targeted, instead a member of staff inadvertently installed malware which locked the hospital’s enterprise-wide electronic health record system (EHR): The system that houses patient health records and critical medical files.
The EHR of Southern California’s Hollywood Presbyterian Medical Center was locked on February 5, 2016., with physicians and other members of the hospital staff unable to access the EHR to view and log patient health information. An investigation into the IT issue was immediately launched and it soon became apparent that the database had been locked by ransomware.
No one wants to have to pay cybercriminals for security keys, and the hospital took steps to try to recover without having to give in to ransom demands. The Police and FBI were contacted and started an investigation. Computer experts were also brought in to help restore the computer system but all to no avail.
The news of the healthcare ransomware attack broke late last week, with early reports suggesting the hospital had received a ransom demand of 9,000 Bitcoin, or around $3.4 million. The EHR was taken out of action for more than a week while the hospital attempted to recover and unlock its files.
Eventually, the decision had to be taken to pay the ransom. While it may have been possible for patient health data to be restored from backups, the time it would take, the resources required to do that, and the disruption it would likely cause was not deemed to be worth it. Allen Stefanek, CEO of Hollywood Presbyterian Medical Center, took the decision to pay the ransom to obtain the security key to unlock the data.
In a statement posted on the company’s website he confirmed that the reports of a ransom demand of 9,000 Bitcoin were untrue. The attackers were asking for 40 Bitcoin, or $16,664, to release the security key to unlock the hospital’s data.
Stefanek said, “The quickest and most efficient way to restore our systems and administrative functions was to pay the ransom and obtain the decryption key. In the best interest of restoring normal operations, we did this.”
Fortunately, healthcare ransomware attacks are relatively rare, as many healthcare providers in the United States already have controls in place to reduce the likelihood of an attack being successful. Staff are trained to be vigilant and not to install software on healthcare devices or open suspicious email attachments. Many use a spam filter to quarantine suspect emails. The latter being an essential protection against healthcare ransomware attacks.
The Importance of a Robust Spam Filter to Prevent Healthcare Ransomware Attacks
A healthcare ransomware attack does not just have a financial impact; it has potential to cause actual harm to patients. The delivery of healthcare services is slowed as a result of the inability to access and share healthcare data, and not being able to view patient health records could delay the delivery of critical patient care or result in incorrect medications being prescribed. That could be a life or death matter. Preventing healthcare ransomware attacks is therefore essential. A technological solution should be employed for maximum protection.
TitanHQ’s SpamTitan software has been developed to keep businesses protected from malware and ransomware attacks. SpamTitan uses two anti-malware engines to maximize the probability of spam emails and malicious attachments being caught and prevented from being delivered to end user inboxes. SpamTitan catches 99.9% of Spam email and quarantines emails with suspicious attachments to prevent them from being delivered.
If you want to reduce the risk of a suffering a ransomware attack and having to pay cybercriminals to unlock critical data, using a robust, powerful anti-spam solution such as SpamTitan is the best way to protect computers and networks from attack. Along with staff training to improve understanding of healthcare ransomware and other malware, it is possible to prevent attacks from being successful.
For further information on SpamTitan anti-spam solutions, contact the TitanHQ team today:
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