Our spam news section provides up to date news on the latest threats that are likely to hit the inboxes of your employees. Cybercriminals are constantly changing tactics with new spam email campaigns, different social engineering techniques and new methods of installing malware and ransomware. By keeping up to date on the latest spam news, organizations can take timely action to mitigate risk.
In that regard, a spam filtering solution is essential. All it takes is for one employee to click on a malicious link or open an infected email attachment for an entire network to be compromised. A spam filter will check all incoming email messages and search for common spam signatures in addition to checking senders’ email accounts against blacklists of known spammers. Email attachments will be checked for virus signatures and hyperlinks compared to blacklists of known malicious domains.
Armed with the latest spam news, information security teams can send email alerts to their employees warning of pertinent threats that they need to be aware of.
This section also includes news on industry-specific attacks, in particular those that are being used to target the healthcare, education, financial services, legal and hospitality sectors.
SpamTitan, TitanHQ’s business email security solution, has been named leader in the Spring G2 Crowd Grid Report for Email Security Gateways.
G2 Crowd is a peer-to-peer review platform for business solutions. G2 Crowd aggregates user reviews of business software and the company’s quarterly G2 Crowd Grid Reports provide a definitive ranking of business software solutions.
The amalgamated reviews are read by more than 1.5 million site visitors each month, who use the reviews to inform software purchases. To ensure that only genuine reviews are included, each individual review is subjected to manual review.
The latest G2 Crowd Grid Report covers email security gateway solutions. Gateway solutions are comprehensive email security platforms that protect against email-based attacks such as phishing and malware. The email gateway is a weak point for many businesses and it is one that is often exploited by cybercriminals to gain access to business networks. A powerful and effective email gateway solution will prevent the vast majority of threats from reaching end users and will keep businesses protected.
To qualify for inclusion in the report, email gateway solutions needed to scan incoming mail to identify spam, malware, and viruses, securely encrypt communications, identify and block potentially malicious content, offer compliant storage through archiving capabilities, and allow whitelisting and blacklisting to control suspicious accounts.
For the report, 10 popular email security gateway solutions were assessed from Cisco, Barracuda, Barracuda Essentials, Proofpoint, Mimecast, Symantec, McAfee, Solarwinds MSP, MobileIron, and TitanHQ. Customers of all solutions were required to give the product a rating in four areas: Quality of support, ease of use, meets requirements and ease of administration.
TitanHQ the leader in business email security, today announced it has been recognized as a leader in the G2 Crowd Grid? Spring 2019 Report for Email Security.
TitanHQ’s SpamTitan was named leader based on consistently high scores for customer satisfaction and market presence. 97% of users of SpamTitan awarded the solution 4 or 5 stars out of 5 and 92% said they would recommend SpamTitan to others.
SpamTitan scored 94% for quality of support and meeting requirements. The industry average in these two areas was 84% and 88% respectively. The solution scored 92% for ease of use against an industry average of 82%, and 90% for ease of admin against an average value of 83%.
“TitanHQ are honored that our flagship email security solution SpamTitan has been named a leader in the email security gateway category,” said Ronan Kavanagh, CEO, TitanHQ. “Our customers value the uncompromised security and real-time threat detection. The overwhelmingly positive feedback from SpamTitan users on G2 Crowd is indicative of our commitment to ensuring the highest levels of customer success.”
If you want to improve email security without breaking the bank and want a solution that your IT staff will like using, SpamTitan is the ideal choice.
SpamTitan is available on a 100% free trial to allow you to try before committing to a purchase; however, if you have any questions about the solution, contact the TitanHQ team who will be happy to help and can schedule a product demonstration.
Emotet malware was first identified in 2014 and its original purpose was to obtain banking credentials and other sensitive information; however, the malware is regularly updated and new functionality is added. Emotet malware is now one of the most prevalent and dangerous malware threats faced by businesses.
The malware can detect whether it is running in a virtual environment and will generate false indicators in such cases. The malware is polymorphic, which means it changes every time it is downloaded. That makes it difficult to detect using the signature-based detection methods employed by standard anti-virus software.
The malware also has worm-like features which allows it to rapidly spread to other networked computers. Emotet is also capable of spamming and forwarding itself to email contacts. As if infection with Emotet is not bad enough, it can also download other malware variants onto infected devices.
Emotet malware is one of the most destructive malware variants currently in use and cleaning up Emotet attacks can be incredibly costly. The Department of Homeland Security has reported that some attacks on state, local, tribal, and territorial governments have cost more than $1 million to resolve.
Emotet malware is primarily distributed via spam email, either through malicious attachments or hyperlinks to websites where the malware is silently downloaded. The lures used in the messages are highly varied and include most of the commonly used phishing lures such as shipping notifications, fake invoices, payment requests, PayPal receipts.
Now the threat actors behind the malware have adopted a new tactic to increase infection rates. Once installed on a device, the malware accesses email conversation threads and forwards the message to individuals named in the thread.
The original email conversation is unaltered, but a hyperlink is added to the top of the message. The link directs the recipient to a webpage where a file download is triggered. Opening the document and enabling macros will see Emotet downloaded. Email attachments may also be added to previous conversation threads in place of hyperlinks.
Since the messages come from a known individual with whom an email conversation has taken place in the past, the probability of the document being opened is greater than if messages come out of the blue or are sent from an unknown individual.
Several cybersecurity firms have identified a campaign using this tactic, including phishing intelligence provider Cofense and security researcher Marcus Hutchins (MalwareTech).
The current campaign uses revived conversations from before November 2018, although more recent conversations may be revived in further campaigns. Any revived old email conversation that contains a link or an attachment could indicate a user has been targeted and that at least one member of the email exchange has been infected with Emotet.
The current campaign is not only extensive, it is also proving to be extremely successful. Spamhaus reports that there have been 47,000 new infections in the past two months alone, while Cofense reports that it has identified more than 700,000 infections in the past 12 months.
Protecting against this dangerous malware requires a powerful anti-spam solution and good security awareness training for staff. SpamTitan’s new features can help to detect malicious emails spreading Emotet malware to better protect businesses from attack.
To find out more about SpamTitan and how the solution can protect your business, give TitanHQ a call today.
Monday April 15 is Tax Day in the United States – the deadline for submitting 2018 tax returns. Each year in the run up to Tax Day, cybercriminals step up their efforts to obtain users’ tax credentials. In the past few weeks, many tax-related phishing scams have been detected which attempt to install information stealing malware.
One of the main aims of these campaigns is to obtain tax credentials. These are subsequently used to file fraudulent tax returns with the IRS. Tax is refunded to accounts controlled by the attackers, checks are redirected, and a range of other methods are used to obtain the payments.
Attacks on tax professionals are commonplace. If access can be gained to a tax professional’s computer, the tax credentials of clients can be stolen, and fraudulent tax returns can be filed in their names. A single successful attack on a tax professional can see the attacker obtain many thousands of dollars in tax rebates.
There has been the usual high level of tax-related phishing scams during the 2019 tax season and businesses of all types have been targeted. It is not only tax credentials that cybercriminals are after. Many tax-themed phishing scams have been conducted which attempt to install malware and ransomware such as the TrickBot banking Trojan.
The TrickBot banking Trojan is a powerful malware variant which, once installed, can give an attacker full control of an infected computer. The malware is primarily an information stealer. A successful installation on one business computer can allow the attackers to move laterally and spread the malware across the whole network.
The primary purpose of the TrickBot trojan is to steal banking credentials which can be used to make fraudulent wire transfers: however, TrickBot is regularly updated with new features. In addition to stealing banking credentials, the malware can steal VNC. RDP, and PuTTY credentials.
The threat actors behind TrickBot are highly organized and well resourced. More than 2,400 command and control servers are used by the cybercriminal gang and that number continues to grow.
The three new TrickBot malware campaigns were detected since late January by IBM X-Force researchers. Spam email messages are carefully crafted to appear legitimate and look innocuous to business users and appear to have been sent by well-known accounting and payroll firms such as ADP and Paychex.
Spoofed email addresses are commonly used, although in these campaigns, the attackers have used domain squatting. They have registered domains that are very similar to those used by the accounting firms. The domains have transposed letters and slight misspellings to make the email appear to have been sent from a legitimate source. The domains can be highly convincing and, in some cases, are extremely difficult to identify as fake.
The emails are well written and claim to include tax billing records, which are included as attached spreadsheets. The spreadsheets contain malicious macros which, if allowed to run, will download the TrickBot Trojan.
To prevent attacks, several steps should be taken. Macros should be disabled by default on all devices. Prompt patching is required to keep all software and operating systems up to date to prevent vulnerabilities from being exploited.
End users should receive security awareness training and should be taught cybersecurity best practices and how to identify phishing emails. An advanced spam and anti-phishing solution should also be implemented to ensure phishing emails are identified and prevented from reaching end users inboxes. Further, all IoCs and IPs known to be associated with the threat actors should be blocked through spam filtering solutions, firewalls, and web gateways.
The latter is made easy with SpamTitan and WebTitan – TitanHQ’s anti-phishing and web filtering solutions for SMBs.
Current users of the SpamTitan email security solution and SMBs and MSPs that are considering implementing SpamTitan or offering it to their clients are invited to join a webinar in which TitanHQ will explains the exciting new features that have recently been incorporated into the anti-phishing and anti-spam solution.
SpamTitan has recently received a major update that has seen the incorporation of DMARC email authentication to better protect users from email impersonation attacks and the addition of a new Bitdefender-powered sandbox. The sandbox allows users to safely assess email attachments for malicious actions, to better protect them against zero-day malware and other malicious software delivered via email.
The webinar will explain these and other features of SpamTitan in detail and the benefits they offer to customers, including how they better protect SMBs and SMEs from phishing, spear phishing, spoofing, ransomware, malware, and zero-day attacks.
The webinar will also explain why SpamTitan is the leading email security solution for managed service providers serving the SMB and SME market and how the solution can help to enhance security for their clients and can easily be slotted into their service stacks.
The webinar will be taking place on Thursday April 4, 2019 at 12pm, EST and will last approximately 30 minutes.
This week, TitanHQ has rolled out two new features for its award-winning email security solution SpamTitan: Sandboxing and DMARC email authentication.
TitanHQ developed the technology behind its email security solution more than 20 years ago and over the past two decades SpamTitan has received many updates to improve features for end users and increase detection rates.
SpamTitan already blocks more than 99.9% of spam and malicious emails to prevent threats from reaching end users’ inboxes. The level of protection SpamTitan provides against email attacks has made it the gold standard in email security for the SMB market and managed service providers serving SMBs.
In order to provide even greater protection against increasingly sophisticated email threats, TitanHQ added a new sandboxing feature. The next-generation sandboxing feature, powered by Bitdefender, provides SpamTitan customers with a safe environment to run in-depth analyses of suspicious programs and files that have been delivered via email.
New SpamTitan Sandboxing Service
The sandbox is a powerful virtual environment totally separate from other systems. When programs are run in the sandbox, they behave as they would on an ordinary endpoint and can be assessed for suspicious behavior and malicious actions without causing harm.
Prior to being sent to the sandbox, files are first analyzed using SpamTitan’s anti-malware technologies. Only files that require further analysis make it to the sandbox where they are safely detonated. Tactics used by malware to evade detection and avoid analysis are logged and flagged. Purpose-built, advanced machine learning algorithms they assess the files and check their actions against an extensive array of known threats from a range on online repositories in a matter of minutes.
If the file is confirmed as benign, it can be released. If the file is determined to be malicious, the sandboxing service automatically sends a report to the Bitdefender’s Global Protective Network and all further instances of the threat will then be blocked globally to ensure the file does not need to be analysed again.
The sandbox provides advanced protection against zero-day exploits, polymorphic threats, APTs, malicious URLs, new malware samples that have yet to be identified as malicious, and new threats that have been developed for undetectable targeted attacks.
Incorporation of this feature into SpamTitan gives customers advanced emulation-based malware analysis capabilities without having to purchase a separate sandboxing solution and ensures customers are protected against rapidly evolving advanced threats.
DMARC Email Authentication Added to SpamTitan
Email spoofing is the term given to the use of a forged sender address. Email spoofing is used to increase the likelihood of an email being delivered and opened by an end user. The email address of a known contact, well known company, or government organization is usually spoofed to abuse trust in that individual, brand, or organization.
DMARC authentication is now essential for all businesses and is a powerful control to prevent spoofing attacks. DMARC is used to check email headers to provide further information about the true sender of an email. Through DMARC, the message is authenticated as having been sent from the organization that owns the domain. If authentication fails, the message is rejected.
While SPF provides a certain degree of protection against email spoofing, DMARC is far more dependable. SpamTitan now incorporates DMARC authentication to provide even greater protection against email spoofing attacks.
Both of these new features have been added in the latest update to SpamTitan and are available to users at no extra cost.
“We have listened to requests from customers to have new features added to SpamTitan, and by far the most requested improvements are anti-spoofing technology and sandboxing,” said Ronan Kavanagh, CEO, TitanHQ. “I’m delighted to say that both of these new features have now been added to provide enhanced security for customers at no extra cost.”
During tax season, tax phishing scams are rife. If cybercriminals can steal personal information such as the information contained on W2 forms, they can use the information to file fraudulent tax returns. Each set of credentials can net cybercriminals thousands of dollars. Attacks on businesses can be even more profitable. If an attack results in the theft of the tax credentials of a company’s entire workforce, hundreds of fraudulent tax returns can be filed.
The IRS works hard to combat fraud, but even so, many of these attacks are successful and fraudulent tax refunds are issued. This week, as part of its efforts to combat tax fraud, the IRS has launched its 2019 Dirty Dozen campaign. The campaign raises awareness of the threat of tax fraud and encourages taxpayers, businesses, and tax professionals to be vigilant.
The campaign features 12 common tax scams that attempt to obtain personal information or access to systems that contain such information. The campaign will see a different scam highlighted for 12 consecutive days. The campaign was launched on March 4 with the biggest threat in tax season: Tax phishing scams.
Common Tax Phishing Scams
Tax phishing scams are constantly evolving and each year several new tax phishing scams are identified. The most common scams and attacks are:
Business Email Compromise (BEC) attacks
Business Email Spoofing (BES) attacks
Email impersonation attacks
BEC attacks involve the use of a genuine business email account to send messages to employees requesting the W2 form information of employees, changes to business account information, requests to reroute direct deposits and make fraudulent wire transfers. The attackers often gain access to a high-level executive’s email account through a spear phishing campaign. BEC is one of the most common business tax phishing scams.
BES attacks are similar, except that no email account has been compromised. The email address of an executive or other employee is spoofed so that emails appears to have been sent from within an organization.
Email impersonation attacks are common during tax season. Scammers impersonate the IRS and use a variety of lures to obtain personal information. Common lures are threats of legal action or fines for outstanding taxes and offers of tax refunds. They often direct users to a website where they are required to enter their personal information. These phishing webpages are also linked to on social media websites. The clients of tax professionals may also be impersonated. Emails often request changes be made to direct deposit accounts or contain requests for sensitive information.
Malware is often used to gain access to the computers of tax professionals, and employees in the payroll and HR departments. Keyloggers are commonly used as they allow the attackers to steal login credentials. Malware can also transfer files containing sensitive information to the attackers’ servers. Malware is often installed via scripts in email attachments – malicious macros for instance – or via drive-by downloads from malicious websites.
New Phishing Scam Targeting Tax Professionals
One of the new tax phishing scams to emerge this year targets tax professionals. First the attackers gain access to tax professionals’ computers, either through spear phishing campaigns or by installing malware. Client tax information is then stolen and fraudulent tax returns are files in the clients’ names. When the IRS processes the refunds, payments are sent to taxpayers’ bank accounts. Those taxpayers then receive a call or an email demanding the return of the funds which have been paid in error. The attackers claim to be from a debt collection agency used by the IRS or the IRS itself.
Don’t Become a Victim of a Tax Phishing Scam
Many taxpayers and businesses fall victim to tax phishing scams each year, especially during tax season when attacks increase; however, by taking some simple steps and being vigilant it is possible to identify scams and keep financial and personal data secure.
Any email, text, or telephone call that requests personal/tax information should be treated as a potential scam. If an email or text message is received that claims to be from the IRS demanding payment of outstanding taxes, an offer of a tax refund, or a threat of legal action, bear in mind that the IRS does not initiate contact via email or text message asking for personal information. If such a message is received, forward the email to firstname.lastname@example.org and contact the IRS or check your online tax account to find out if there is a genuine problem. Never use the contact information or links in an email and do not open an email attachment in an email that appears to have been sent by the IRS.
Businesses can include information about tax phishing scams in their security awareness training sessions, but departments that are likely to be targeted by cybercriminals – payroll, human resources, finance and accounting Etc.) should receive specific training ahead off the start of tax season. Sending monthly reminders about phishing attacks and other tax scams each month via email is also a good best practice.
Since most attacks start with a phishing email, businesses should ensure that they have an advanced spam filtering solution in place to block phishing and other emails at the gateway before they can be delivered to end users. SpamTitan is an ideal anti-spam solution for businesses and tax professionals to protect against tax phishing scams. The solution blocks more than 99.9% of spam and phishing emails and includes outbound email scanning to ensure that compromised email accounts cannot be used for spamming.
To protect against internet phishing scams, a web filtering solution is ideal. WebTitan prevents end users from visiting phishing websites, including blocking visits to malicious websites via hyperlinks in scam emails. The solution also blocks drive-by malware downloads and other web-based threats.
If you are a tax professional or you run a business and are unhappy with your current anti-spam or web filtering solution provider, or you have yet to implement either of these solutions, give the TitanHQ team a call today for further information on how these solutions can protect your business, details of pricing, and to book a product demonstration.
It doesn’t take long after the release of a patch for hackers to take advantage, especially when the vulnerability potentially impacts 500 million users. It is therefore not surprising that at least one hacker is taking advantage of a recently disclosed WinRAR vulnerability.
Oftentimes, vulnerabilities are found in certain versions of software, but this vulnerability affects all WinRAR users and dates back 19 years. The WinRAR vulnerability was identified by researchers at Check Point. WinRAR was alerted and confirmed the vulnerability existed, and promptly issued an updated version of the file compression tool with the vulnerability removed. Details of the vulnerability were disclosed in a Check Point blog post on February 20, 2019.
The WinRAR vulnerability in question was present in a third-party DLL file which was included in WinRAR to allow ACE archive files to be uncompressed. The researchers found that by renaming a .rar archive to make it appear that the compressed file was an ACE archive, it was possible to extract a malicious file into the startup folder unbeknown to the user. That file would then run on boot, potentially giving an attacker full control of the device. The malicious file would continue to load on startup until discovered and removed.
All an attacker would need to do to exploit the WinRAR vulnerability is to convince a user to open a specially crafted .rar archive file attached to an email. Compressed files are often used in malspam campaigns to hide malicious executable files. Since .rar and .zip files are commonly used by businesses to send large files via email, they are likely to be recognized and may be opened by end users.
In this case, if the archive contents are extracted, the user would likely be unaware that anything untoward had happened, as the executable is loaded into the startup folder without giving any indication the file has been extracted. Due to the location of extraction, no further actions are required by the user.
In this case, the executable installs a backdoor, although only if the user has User Account Control (UAC) disabled. That said, this is unlikely to be the only campaign exploiting the WinRAR vulnerability. Other threat actors may develop a way to exploit the vulnerability for all users that have yet to update to the latest WinRAR version.
Many users will have WinRAR installed on their computer but will rarely use the program, so may not be aware that there is an update available. It is possible that a large percentage of users with the program installed have yet to update to the latest version and are vulnerable to attack.
This campaign illustrates just how important it is to patch promptly. As soon as a patch is released for a popular software program it is only a matter of time before that vulnerability is exploited, even just a few days.
Patching all devices in use in an organization can take time. It is therefore important to make sure that all employees receive security awareness training and are taught email security best practices and how to identify potentially malicious emails.
Unfortunately, social engineering techniques can be highly convincing, and many users may be fooled into opening email attachments, especially when the attacker spoofs the sender’s email address and the email appears to come from a known individual. It is therefore essential to have an advanced spam filtering solution in place that is capable of detecting malicious attachments at source, including malicious files hidden inside compressed files, and stop the messages from being delivered to inboxes.
The 2019 Cybersecurity Survey conducted by the Healthcare Information and Management Systems Society (HIMSS) has highlighted healthcare email security weaknesses and the seriousness of the threat of phishing attacks.
HIMSS conducts the survey each year to identify attack trends, security weaknesses, and areas where healthcare organizations need to improve their cybersecurity defenses. This year’s survey confirmed that phishing remains the number one threat faced by healthcare organizations and the extent that email is involved in healthcare data breaches.
This year’s study was conducted on 166 healthcare IT leaders between November and December 2018. Respondents were asked questions about data breaches and security incidents they had experienced in the past 12 months, the causes of those breaches, and other cybersecurity matters.
Phishing attacks are pervasive in healthcare and a universal problem for healthcare providers and health plans of all sizes. 69% of significant security incidents at hospitals in the past 12 months used email as the initial point of compromise. Overall, across all healthcare organizations, email was involved in 59% of significant security incidents.
The email incidents include phishing attacks, spear phishing, whaling, business email compromise, and other email impersonation attacks. Those attacks resulted in network breaches, data theft, email account compromises, malware infections, and fraudulent wire transfers.
When asked about the categories of threat actors behind the attacks, 28% named ‘online scam artists’ and 20% negligence by insiders. Online scam artists include phishers who send hyperlinks to malicious websites via email. It was a similar story the previous year when the survey was last conducted.
Given the number of email-related breaches it is clear that anti-phishing defenses in healthcare need to be improved. HIPAA requires all healthcare employees to receive security awareness training, part of which should include training on how to identify phishing attacks. While this is a requirement for compliance, a significant percentage (18%) of healthcare organizations do not take this further and are not conducting phishing simulations, even though they have been shown to improve resilience against phishing attacks by reinforcing training and identifying weaknesses in training programs.
The continued use of out of date and unsupported software was also a major concern. Software such as Windows Server and Windows XP are still extensively used in healthcare, despite the number of vulnerabilities they contain. 69% of respondents admitted still using legacy software on at least some machines. When end users visit websites containing exploit kits, vulnerabilities on those devices can easily be exploited to download malware.
It may take some time to phase out those legacy systems, but improving healthcare email security is a quick and easy win. HIMSS recommends improving training for all employees on the threat from phishing with the aim of decreasing click rates on phishing emails. That is best achieved through training, phishing simulations, and better monitoring of responses to phishing emails to identify repeat offenders.
At TitanHQ, we can offer two further solutions to improve healthcare email security. The first is an advanced spam filtering solution that blocks phishing emails and prevents them from being delivered to inboxes. The second is a solution that prevents employees from visiting phishing and other malicious websites such as online scams.
SpamTitan is an advanced anti-phishing solution that scans all incoming emails using a wide range of methods to identify malicious messages. The solution has a catch rate in excess of 99.9% with a false positive rate of just 0.03%. The solution also scans outbound messages for spam signatures to help identify compromised email accounts.
WebTitan Cloud is a cloud-based web filtering solution that blocks attempts by employees to visit malicious websites, either through web surfing or responses to phishing emails. Should an employee click on a link to a known malicious site, the action will be blocked before any harm is caused. WebTitan also scans websites for malicious content to identify and block previously known phishing websites and other online scams. Alongside robust security awareness training programs, these two solutions can help to significantly improve healthcare email security.
For further information on TitanHQ’s healthcare email security and anti-phishing solutions, contact TitanHQ today.
A new Office 365 phishing scam has been detected that attempts to get users to part with their Office 365 credentials with a request for collaboration via SharePoint.
The campaign was first detected in the summer of 2018 by researchers at cybersecurity firm Avanan. The Office 365 phishing scam is ongoing and has proven to be highly effective. According to Kaspersky Lab, the phishing campaign has been used in targeted attacks on at least 10% of companies that use Office 365.
This Office 365 phishing scam abuses trust in SharePoint services that are often used by employees. An email is sent to an Office 365 user that contains a link to a document stored in OneDrive for Business. In contrast to many phishing campaigns that spoof links and fool users into visiting a website other than the one indicated by the link text, this link actually does direct the user to an access request document on OneDrive.
A link in the document then directs users to a third-party website where they are presented with a Microsoft Office 365 login page that is a perfect copy of the official Office 365 login page. If login credentials are entered, they are given to the scammers. Once obtained, it is possible for the scammers to gain access to the Office 365 account of the user, including email and cloud storage.
The email accounts can be used for further phishing campaigns on the user’s contacts. Since those messages come from within the organization, they are more likely to be trusted. Email accounts can also contain a wealth of sensitive information which is of great value to competitors. In healthcare, email accounts can contain patient information, including data that can be used to steal identities. The attackers can also use the compromised credentials to spread malware. Employees may know not to open attachments from unknown individuals, but when they are sent from a colleague, they are more likely to be opened.
Businesses that use Microsoft’s Advanced Threat Protection (APT) service may mistakenly believe they are protected from phishing attacks such as this. However, since the links in the email are genuine OneDrive links, they are not identified as malicious. It is only the link in those documents that is malicious, but once the document is opened, Microsoft’s APT protection has already been bypassed.
Finding Office 365 users is not difficult. According to a 2017 Spiceworks survey, 83% of enterprises use Office 365 and figures from 2018 suggest 56% of organizations globally have adopted Office 365. However, a basic check can easily identify Office 365 users as it is broadcast on public DNS MX records. If one user can be found in an organization, it is highly likely that every other user will be using Office 365.
Businesses can take steps to avoid Office 365 phishing scams such as this.
Ensure that all employees are made aware of the threat from phishing, and specifically this Office 365 phishing scam. They should be told to exercise caution with offers to collaborate that have not been preceded by a conversation.
Conduct phishing email simulations to test defenses against phishing and identify individuals that require further security awareness training.
Activate multifactor authentication to prevent stolen credentials from being used to access Office 365 accounts from unknown locations/devices.
Change from APT anti-phishing controls to a third-party spam filter such as SpamTitan. This will not only improve catch rates, it will also not broadcast that the organization uses Office 365.
Use an endpoint protection solution that is capable of detecting phishing attacks.
Implement a web filter to prevent users from visiting known phishing websites and other malicious web pages.
A new email campaign is being conducted in the run up to Valentine’s Day which attempts to get users to open email attachments by fooling them into thinking they are love letters. The love letter email scam includes enticing subject lines such as ‘Love Letter’, ‘I Love You’, ‘This is my love letter to you’, ‘Always thinking about you’, and other love and love letter themes.
These types of scams are common in the run up to Valentine’s Day, and as the day draws closer, the likelihood of the scams succeeding grows.
A further four malware variants are subsequently downloaded to the victim’s device: The Phorpiex spambot, a Monero cryptocurrency miner (XMRig), a further malware downloader, and the latest version of GandCrab ransomware: A particularly nasty combination of malware.
The malspam campaign was detected by SANS ISC researcher Brad Duncan who determined the campaign has been running since at least November 2018. Several different subject lines and attachments have been identified and multiple spoofed sending addresses are used in this campaign.
To prevent email scams such as this from succeeding, businesses should ensure that their employees receive ongoing security awareness training. Regular email security alerts should be sent to the workforce to keep them abreast of the latest techniques that are being used by scammers to install malware and phish for sensitive information.
It is also essential for an advanced spam filter to be implemented. This will ensure the majority of malicious messages are blocked and not delivered to end users. SpamTitan scans all incoming and outgoing messages and uses a variety of techniques to identify spam and malicious messages. Those controls ensure a block rate in excess of 99.9%, while dual antivirus engines provide total protection against all known malware variants.
SpamTitan is available on a free trial with options to suit all businesses and managed service providers. For further information, to register for the no-obligation free trial, or to book a product demonstration, contact TitanHQ today.
The last weekend of 2018 has seen a major newspaper cyberattack in the United States that has disrupted production of several newspapers produced by Tribune Publishing.
The attacks were malware-related and affected the Saturday editions of the Los Angeles Times, the San Diego Union-Tribune, the Chicago Tribune, the New York Times, the Wall Street Journal, and others. The malware attack occurred on Thursday, December 27, and caused major problems throughout Friday.
All of the affected newspapers shared the same production platform, which was disrupted by the malware infection. While the type of malware used in the attack has not been publicly confirmed, several insiders at the Tribune have reported that the attack involved Ryuk ransomware.
Ransomware is a form of malware that encrypts critical files preventing them from being accessed. The primary goal of attackers is usually to obtain ransom payments in exchange for the keys to decrypt the encrypted files. It is also common for ransomware to be deployed after network access has been gained and sensitive information has been stolen, either to mask a data breach or in an attempt to make an attack even more profitable. It is also not unknown for ransomware attacks to be conducted to cause disruption. It is suspected that this newspaper cyberattack was conducted primarily to disable infrastructure.
The type of ransomware used in an attack is usually easy to identify. After encrypting files, ransomware changes file extensions to an (often) unique extension. In the case of Ryuk ransomware, extensions are changed to .ryk.
The Los Angeles Times has attributed it to threat actors based outside the United States, although it is unclear which group was behind the cyberattacks. If the attack was conducted to disable infrastructure it is probable that this was a nation-state sponsored attack.
The first Ryuk ransomware cyberattacks occurred in August. Three U.S. companies were attacked, and the attackers were paid at least $640,000 for the keys to unlock the data. An analysis of the ransomware revealed it shared code with Hermes malware, which had previously been linked to the Lazarus Group – An APT group with links to North Korea.
While many ransomware campaigns used mass spamming tactics to distribute the ransomware and infect as many end users as possible, the Ryuk ransomware attacks were much more targeted and involved considerable reconnaissance and extensive network mapping before the ransomware is finally deployed. As is the case with SamSam ransomware attacks, the campaign is conducted manually.
Several methods are used to gain access to networks, although earlier this year a warning about Ryuk ransomware was issued by the U.S. Department of Health and Human Services claiming email to be one of the main attack vectors, highlighting the importance of email security and end user training to help employees recognize email-based threats.
A new Netflix phishing scam has been detected that attempts to fool Netflix subscribers into disclosing their login credentials and other sensitive information such as Social Security numbers and bank account numbers.
This Netflix phishing scam is similar to others that have been intercepted over the past few months. A major campaign was detected in October and another in November. The latest Netflix phishing scam confirms that the threat actors are now launching large-scale phishing attacks on a monthly basis.
The number of recent Netflix scams and the scale of the campaigns has prompted the U.S. Federal Trade Commission (FTC) to issue a warning to raise awareness of the threat.
The latest campaign was detected by an officer in the Ohio Police Department. As with past campaigns, the attackers use a tried and tested method to get users to click on the link in the email – The threat of account closure due to issues with the user’s billing information.
In order to prevent closure of the user’s Netflix account a link in the email must be clicked. That will direct the user to the Netflix site where login credentials and banking information must be entered. While the web page looks genuine, it is hosted on a domain controlled by the attackers. Any information entered on that web page will be obtained by the threat actors behind the scam.
The emails appear genuine and contain the correct logos and color schemes and are almost identical to the official emails sent to users by Netflix. Netflix also includes links in its emails, so unwary users may click without first checking the authenticity of the email.
Image Source: FTC via Ohio Police Department
There are signs that the email is not what it seems. The email is incorrectly addressed “Hi Dear”; British English is used, even though the email is sent to U.S. citizens; the email is sent from a domain that is not used by Netflix; and the domain to which the email directs users is similarly suspect. However, the scam is sure to fool many users who fail to carefully check emails before taking any action.
Consumers need to exercise caution with email and should carefully check messages before responding, no matter how urgent the call for action is. It is a good best practice to always visit a website directly by entering in the domain into the address bar of a web browser, rather than clicking a link in an email.
If the email is determined to be a scam, it should be reported to the appropriate authorities in the country in which you reside and also to the company the scammers are impersonating. In the case of Netflix phishing scams, emails should be sent to email@example.com.
While this Netflix phishing scam targets consumers, businesses are also at risk. Many similar scams attempt to get users to part with business login credentials and bank account information. Businesses can reduce the risk of data and financial losses to phishing scams by ensuring all members of the company, from the CEO down, are given regular security awareness training and are taught cybersecurity best practices and are made aware of the latest threats.
An advanced spam filtering solution is also strongly recommended to ensure the vast majority of these scam emails are blocked and do not reach inboxes. SpamTitan for instance, blocks more than 99.9% of spam and phishing emails and 100% of known malware.
For further information on anti-phishing solutions for businesses, contact the TitanHQ team today.
A major San Diego School District phishing attack has been discovered. The phishing attack stands out from the many similar phishing attacks on schools due to the extent of accounts that were compromised, the amount of data that was potentially obtained, and the length of time it took for the data breach to be detected.
According to a recent breach announcement, the login credentials of around 50 district employees were obtained by the attacker. It is not unusual for multiple accounts to be breached in school phishing attacks. Once access is gained to one account, it can be used to send internal phishing emails to other staff members. Since those emails come from within, they are more likely to be trusted and less likely to be detected. Investigations into similar phishing attacks often reveal many more email accounts have been compromised than was initially thought, although 50 sets of compromised credentials is particularly high.
Those accounts were compromised over a period of 11 months. The San Diego School District phishing attack was first detected in October 2018 after staff alerted the district’s IT department to phishing emails that had been received. Multiple reports tipped off the IT department that an ongoing cyberattack was occurring and there may have been a data breach.
The investigation revealed the credentials obtained by the attacker provided access to the district’s network services, which included access to the district’s database of staff and student records. The school district is the second largest in California and serves over 121,000 students each year. The database contained records going back to the 2008/2009 school year. In total, the records of more than 500,000 individuals were potentially obtained by the hacker. Given the length of time that the hacker had access to the network, data theft is highly probable.
The data potentially obtained was considerable. Student information compromised included names, addresses, dates of birth, telephone numbers, email addresses, enrollment and attendance information, discipline incident information, health data, legal notices on file, state student ID numbers, emergency contact information, and Social Security numbers. Compromised staff information also included salary information, health benefits data, paychecks and pay advices, tax data, and details of bank accounts used for direct deposits.
Data could be accessed from January 2018 to November 2018. While it is typical for unauthorized access to be immediately blocked upon discovery of a breach, in this case the investigation into the breach was conducted prior to shutting down access. This allowed the identity of the suspected hacker to be determined without tipping off the hacker that the breach had been detected. The investigation into the breach is ongoing, although access has now been blocked and affected individuals have been notified. Additional cybersecurity controls have now been implemented to block future attacks.
School district phishing attacks are commonplace. School districts often lack the resources of large businesses to devote to cybersecurity. Consequently, cyberattacks on school districts are much easier to pull off. Schools also store large volumes of sensitive data of staff and students, which can be used for a wide range of malicious purposes. The relative ease of attacks and a potential big payday for hackers and phishers make schools an attractive target.
The San Diego School District phishing attack is just one of many such attacks that have been reported this year. During tax season at the start of 2018, many school districts were targeted by phishers seeking the W-2 forms of employees. It is a similar story every year, although the threat actors behind these W-2 phishing attacks have been more active in the past two years.
In December this year, Cape Cod Community College suffered a different type of phishing attack. The aim of that attack was to convince staff to make fraudulent wire transfers. At least $800,000 was transferred to the attackers’ accounts in that attack.
These attacks clearly demonstrate the seriousness of the threat of phishing attacks on school districts and highlights the importance of implementing robust cybersecurity protections to protect against phishing.
If you want to improve your defenses against phishing, contact the TitanHQ team today for further information on anti-phishing solutions for schools.
campaign is to obtain users’ Office 365 passwords.
The phishing campaign was detected by ISC Handler Xavier Mertens and the campaign appears to still be active.
The phishing emails closely resemble legitimate Office 365 non-delivery notifications and include Office 365 branding. As is the case with official non-delivery notifications, the user is alerted that messages have not been delivered and told that action is required.
The Office 365 phishing emails claim that “Microsoft found Several Undelivered Messages” and attributes the non-delivery to “Server Congestion.” The emails ask the sender to retype the recipient’s email address and send the message again, although conveniently they include a Send Again button.
If users click the Send Again button, they will be directed to a website that closely resembles the official Office 365 website and includes a login box that has been auto-populated with the user’s email address.
While the Office 365 phishing emails and the website look legitimate, there are signs that all is not what it seems. The emails are well written and the sender’s email – firstname.lastname@example.org – looks official but there is irregular capitalization of the warning message: Something that would not occur on an official Microsoft notification.
The clearest sign that this is a phishing scam is the domain to which users are directed if they click on the Send Again button. It is not an official Microsoft domain (agilones.com).
While the error in the email may be overlooked, users should notice the domain, although some users may proceed and enter passwords as the login box is identical to the login on the official Microsoft site.
The campaign shows just how important it is to carefully check every message before taking any action and to always check the domain before disclosing any sensitive information.
Scammers use Office 365 phishing emails because so many businesses have signed up to use Office 365. Mass email campaigns therefore have a high probability of reaching an Outlook inbox. That said, it is easy to target office 365 users. A business that is using Office 365 broadcasts it through their public DNS MX records.
Businesses can improve their resilience to phishing attacks through mandatory security awareness training for all employees. Employees should be told to always check messages carefully and should be taught how to identify phishing emails.
Businesses should also ensure they have an advanced spam filtering solution in place. While Microsoft does offer anti-phishing protection for Office 365 through its Advanced Threat Protection (APT) offering, businesses should consider using a third-party spam filtering solution with Office 365.
SpamTitan provides superior protection against phishing and zero-day attacks, an area where APT struggles.
According to a recent Irish phishing study, as many as 185,000 office workers in the country have fallen victim to phishing scams.
Phishing is a method used by cybercriminals to obtain sensitive information such as login credentials, financial information, and other sensitive data. While phishing can take place over the phone, via messaging platforms or by text message, email is most commonly used.
Messages are sent in bulk in the hope that some individuals will respond, or campaigns can be much more targeted. The latter is referred to as spear phishing. With spear phishing attacks, cybercriminals often research their victims and tailor messages to maximize the probability of them eliciting a response.
A successful phishing attack on employees can see them disclose their email credentials which allows their accounts to be accessed. Then the attackers can search emails accounts for sensitive information or use the accounts to conduct further phishing attacks on other employees. When financial information is disclosed, business bank accounts can be emptied.
Businesses can suffer major financial losses as a result of employees responding to phishing emails, the reputation of the business can be damaged, customers can be lost, and there is also a risk of major regulatory fines.
Irish Phishing Study Findings
The Irish phishing study was conducted on 500 Irish office workers by the survey consultancy firm Censuswide. Respondents to the Irish phishing study were asked questions about phishing, whether they had fallen for a phishing scam in the past, and how they rated their ability to identify phishing attacks.
In line with findings from surveys conducted in other countries, 14% of respondents said they had been a victim of a phishing attack. There were also marked differences between different age groups. Censuswide analyzed three age groups: Millennials, Gen X, and baby boomers. The latter two age groups were fairly resistant to phishing attempts. Gen X were the most phishing-savvy, with just 6% of respondents in the age group admitting to having been fooled by phishing emails in the past, closely followed by the baby boomer generation on 7%. However, 17% of millennials admitted having fallen for a phishing scam – The generation that should, in theory, be the most tech-savvy.
Interestingly, millennials were also the most confident in their ability to recognize phishing attempts. 14% of millennials said they would not be certain that they could detect fraud, compared to 17% of Gen X, and 26% of baby boomers.
It is easy to be confident about one’s ability to spot standard phishing attempts, but phishing attacks are becoming much more sophisticated and very realistic. Complacency can be very dangerous.
Phishing Protection for Businesses
The results of the Irish phishing study make it clear that businesses need to do more to protect themselves from phishing attacks. Naturally, an advanced spam filtering solution is required to ensure that employees do not have their phishing email identification skills put to the test constantly. SpamTitan, for instance, blocks more than 99.9% of spam and phishing emails, thus reducing reliance on employees’ ability to identify scam emails.
The Irish phishing study also highlights the importance of providing security awareness training to employees. The study revealed 44% of the over 54 age group had opened an attachment or clicked on a link in an email from an unknown sender, as had 34% of millennials and 26% of the Gen X age group. Alarmingly, one in five respondents said that their employer had not provided any security awareness training whatsoever.
Employees need to learn how to identify scams, so security awareness training must be provided. Since cybercriminals’ tactics are constantly evolving, training needs to be continuous. Annual or biannual training sessions should be provided, along with shorter refresher training sessions. Businesses should also consider conducting phishing email simulations to test resilience to phishing attacks and highlight weak links.
To be effective, anti-phishing training needs to be provided to all employees and requires buy-in from all departments. Unless that happens, it will be difficult to develop a culture of security awareness.
A U.S. school system had Office 365 spam filtering controls in place and other cybersecurity solutions installed, but still experienced a costly 6-week malware infection. In this post we explore what went wrong and how you can improve security in your organization.
Multi-Layered Defenses Breached
If you want to mount a solid defense and prevent hackers from gaining access to your networks and data, multi-layered cybersecurity defenses are required, but for one Georgia school district that was not enough. On paper, their defenses looked sound. Office 365 spam filtering controls had been applied to protect the email system, the school district had a firewall appliance protecting the network, and a web filter had been installed to control what users could do online. Endpoint security had also been installed.
The school district was also updating its desktops to Windows 10 and its servers to Windows Server 2012 or later. Everything looked nice and secure.
However, the transportation department delayed the upgrades. The department was still sharing files on a local Windows 2003 server and some of the desktops were still running Windows XP, even though support for the OS had long since ended. The outdated software and lack of patching was exploited by the attackers.
How Was the Malware Installed?
The investigation has not yet determined exactly how the attack was initiated, but it is believed that it all started with an email. As a result of the actions of an end user, a chain of events was triggered that resulted in a 6-week struggle to mitigate the attack, the cost of which – in terms of time and resources – was considerable.
The attack is believed to have started on a Windows XP machine with SMBv1 enabled. That device had drives mapped to the Windows 2003 server. The malware that was installed was the Emotet Trojan, which used the EternalBlue exploit to spread across the network to other vulnerable devices. The attackers were able to gain control of those devices and installed cryptocurrency mining malware.
The cryptocurrency mining slowed the devices to such an extent that they were virtually unusable, causing many to continually crash and reboot. The network also slowed to a snail’s pace due to the streams of malicious traffic. While the upgraded Windows 10 machines were not affected initially, the attackers subsequently downloaded keyloggers onto the compromised devices and obtained the credentials of an IT support technician who had domain administration rights. The attackers then used those privileges to disable Windows Defender updates on desktops, servers, and domain controllers.
Over the course of a week, further Trojan modules were downloaded by creating scheduled tasks using the credentials of the IT support worker. A spam module was used to send malicious messages throughout the school district and several email accounts were compromised as a result and had malware downloaded. Other devices were infected through network shares. The TrickBot banking Trojan was downloaded and was used to attack the systems used by the finance department, although that Trojan was detected and blocked.
Remediation Took 6 Weeks
Remediating the attack was complicated. First the IT department disabled SMBv1 on all devices as it was not known what devices were vulnerable. Via a Windows Group Policy, the IT team then blocked the creation of scheduled tasks. Every device on the network had Windows Defender updates downloaded manually, and via autoruns for Windows, all processes and files run by the Trojan were deleted. The whole process of identifying, containing, and disabling the malware took 6 weeks.
The attack was made possible through an attack on a single user, although it was the continued use of unsupported operating systems and software that made the malware attack so severe.
The attack shows why it is crucial to ensure that IT best practices are followed and why patching is so important. For that to happen, the IT department needs to have a complete inventory of all devices and needs to make sure that each one is updated.
While Microsoft released a patch to correct the flaw in SMBv1 that was exploited through EternalBlue, the vulnerable Windows XP devices were not updated, even though Microsoft had released an update for the unsupported operating system in the spring of 2017.
Additional Protection is Required for Office 365 Inboxes
The attack also shows how the actions of a single user can have grave repercussions. By blocking malicious emails at source, attacks such as this will be much harder to pull off. While Office 365 spam filtering controls block many email-based threats, even with Microsoft’s Advanced Threat Protection many emails slip through and are delivered to inboxes.
Hackers can also see whether Office 365 is being used as it is broadcast through DNS MX records, which allows them to target Office 365 users and launch attacks.
Due to the additional cost of APT, the lack of flexibility, and the volume of malicious emails that are still delivered to inboxes, many businesses have chosen to implement a more powerful spam filtering solution on top of Office 365.
One such solution that has been developed to work seamlessly with Office 365 to improve protection against email threats is SpamTitan.
Sextortion scams have proven popular with cybercriminals this year. A well written email and an email list are all that is required. The latter can easily be purchased for next to nothing via darknet marketplaces and hacking forums. Next to no technical skill is required to run sextortion scams and as scammers’ Bitcoin wallets show, they are effective.
Many sextortion scams use the tried and tested technique of threatening to expose a user’s online activities (pornography habits, dating/adultery site usage) to all their contacts and friends/family unless a payment is made. Some of the recent sextortion scams have added credibility by claiming to have users’ passwords. However, new sextortion scams have been detected in the past few days that are using a different tactic to get users to pay up.
The email template used in this scam is similar to other recent sextortion scams. The scammers claim to have a video of the victim viewing adult content. The footage was recorded through the victim’s webcam and has been spliced with screenshots of the content that was being viewed at the time.
In the new campaign the email contains the user’s email account in the body of the email, a password (Most likely an old password compromised in a previous breach), and a hyperlink that the victim is encouraged to click to download the video that has been created and see exactly what will soon be distributed via email and social media networks.
Clicking the link in the video will trigger the downloading of a zip file. The compressed file contains a document including the text of the email along with the supposed video file. That video file is actually an information stealer – The Azorult Trojan.
This form of the scam is even more likely to work than past campaigns. Many individuals who receive a sextortion scam email will see it for what it really is: A mass email containing an empty threat. However, the inclusion of a link to download a video is likely to see many individuals download the file to find out if the threat is real.
If the zip file is opened and the Azorult Trojan executed, it will silently collect information from the user’s computer – Similar information to what the attacker claims to have already obtained: Cookies from websites the user has visited, chat histories, files stored on the computer, and login information entered through browsers such as email account and bank credentials.
However, it doesn’t end there. The Azorult Trojan will also download a secondary payload: GandCrab ransomware. Once information has been collected, the user will have their personal files encrypted: Documents, spreadsheets, digital photos, databases, music, videos, and more. Recovery will depend on those files having been backed up and not also encrypted by the ransomware. Aside from permanent file loss, the only other alternative will be to pay a sizeable ransom for the key to decrypt the files.
If the email was sent to a business email account, or a personal email account that was accessed at work, files on the victim’s work computer will be encrypted. Since a record of the original email will have been extracted on the device, the reason why the malware was installed will be made clear to the IT department.
The key to not being scammed is to ignore any threats sent via email and never click links in the emails nor open email attachments.
Businesses can counter the threat by using cybersecurity solutions such as spam filters and web filters. The former prevents the emails from being delivered while the latter blocks access to sites that host malware.
The search for Christmas gifts can be a difficult process. All too often that search proves to be unfruitful and consumers opt to buy gift cards instead. At least with a gift card you can be sure that your friends and family members will be able to buy a gift that they want; however, beware of holiday season gift card scams. Many threat actors are using gift cards as the lure to fool end users into installing malware or parting with sensitive information.
Holiday Season Sees Marked Increase Gift Card Phishing Scams
Holiday season gift card scams are commonplace, and this year is no exception. Many gift card-themed scams were detected over Thanksgiving weekend that offered free or cheap gift cards to lure online shoppers into parting with their credit card details.
Everyone loves a bargain and the offer of something for nothing may be too hard to resist. Many people fall for these scams which is why threat actors switch to gift card scams around this time of year.
Consumers can be convinced to part with credit card details, but businesses too are at risk. Many of these campaigns are conducted to gain access to login credentials or are used to install malware. If an end user responds to such a scam while at work, it is their employer that will likely pay the price.
This year has seen many businesses targeted with gift card scams. Figures from Proofpoint suggest that out of the organizations that have been targeted with email fraud attacks, almost 16% had experienced a gif card-themed attack: Up from 11% in Q2, 2018.
This year has also seen an increase in business email compromise (BEC) style tactics, with emails appearing to have been sent from within a company. The emails claim to have been sent from the CEO (or another executive) requesting accounts and administration staff purchase gift cards for clients or ask for gift cards be purchased to be used for charitable donations.
To reduce the risk from gift card scams and other holiday-themed phishing emails, businesses need to ensure they have powerful spam filtering technology in place to block the emails at source and prevent them from being delivered to inboxes.
Advanced Anti-Phishing protection for Office 365
Many businesses use Office 365, but even Microsoft’s anti-phishing protections see many phishing emails slip through the net, especially at businesses that have not paid extra for advanced phishing protection. Even with the advanced anti-phishing controls, emails still make it past Microsoft’s filters.
To block these malicious messages, an advanced third-party spam filter is required. SpamTitan has been developed to work seamlessly with Office 365 to improved protection against malware, phishing emails, and more sophisticated phishing attacks.
SpamTitan blocks more than 99.9% of spam email, while dual anti-virus engines block 100% of known malware. What really sets SpamTitan in a different class is the level of protection it offers against new threats. A combination of Bayesian analysis, greylisting, machine learning, and heuristics help to identify zero-day attacks, which often slip past Office 365 defenses.
If you want to improve protection from email-based attacks and reduce the volume of spam and malicious messages that are being delivered to Office 365 inboxes, give TitanHQ a call today and book a product demonstration to see SpamTitan in action. You can sign up for a free trial of SpamTitan to test the solution in your own environment and see for yourself the difference it makes.
There has been an increase in phishing attacks on retailers, supermarket chains, and restaurants in recent weeks. The aim of the phishing attacks is to deliver remote access Trojans and remote manipulator software to gain persistent access to computers and, ultimately, obtain banking credentials and sensitive customer data on POS systems.
Several new campaigns have been detected in recent weeks targeting retail and food sector companies, both of which are well into the busiest time of the year. With employees working hard, it is likely that less care will be taken opening emails which gives cybercriminals an opportunity.
PUB Files Used in Phishing Attacks on Retailers
Over the past few weeks, security researchers have noted an uptick in phishing attacks on retailers, with one threat group switching to using.pub files to install malware. Many phishing attacks use Word documents containing malicious macros. The use of macros with .pub files is relatively uncommon. The change to this new attachment type may fool employees, as they will be less likely to associate these files with cyberattacks.
Social engineering techniques are used to fool end users into opening the files, with the .pub files masquerading as invoices. Many emails have been intercepted that appear to have been sent from within a company, which helps to make the files appear genuine.
If opened, the .pub files, via malicious macros, run Microsoft Installer (MSI) files that deliver a remote access Trojan. Since these installers will most likely be familiar to end users, they may not realize the installers are malicious. Further, the MSI files are time delayed so they do not run immediately when the .pub files are opened, increasing the probability that the RAT downloads will go unnoticed.
The TA505 threat group is using this tactic to install the FlawedAmmy remote access Trojan and other malicious payloads such as Remote Manipulator System (RMS) clients.
The phishing emails used to deliver these malicious files are targeted and tailored to a specific business to increase the likelihood of success. These targeted spear phishing attacks are now becoming the norm, as threat actors move away from the spray and pray tactics of old.
Cape Cod Community College Phishing Attack Results in Theft of More Than $800,000
Phishing attacks on retailers have increased, but other industries are also at risk. Educational institutions are also prime targets, as has been highlighted by a recent phishing attack on Cape Cod Community College.
The Cape Cod Community College phishing attack involved sophisticated messages that delivered malware capable of evading the college’s anti-virus software. The malware was used to obtain the banking credentials of the college, and once those credentials had been obtained, the hackers proceeded to make fraudulent transfers and empty bank accounts. Transfers totaling $807,130 were made, and so far, the college and its bank have only been able to recover $278,887.
All too often, fraudulent transfers are not detected quickly enough to recover any funds. Once the transfers have cleared the attacker-controlled bank accounts are emptied, after which the probability of recovering funds falls to near zero.
Defense in Depth the Key to Phishing Protection
Email is the primary vector used to phish for sensitive information and deliver malware to businesses. Regardless of whether businesses use local email systems or cloud-based email services such as Office 365, advanced spam filtering controls are required to block threats. For instance, SpamTitan blocks more than 99.9% of spam email and 100% of known malware. SpamTitan also uses heuristics, machine learning, and Bayesian analysis to identify previously unseen threats – One of the areas of weakness of Office 365’s anti-phishing defenses.
Network segmentation is also essential. Critical services must be separated to ensure that the installation of malware or ransomware on one device will not allow the attackers to gain access to the entire network. This is especially important for retailers and other businesses with POS systems. Network segmentation will help to keep POS systems and the financial data of customers secure.
Advanced endpoint protection solutions offer far greater protection than standard antivirus solutions and are less reliant on malware signatures. Standard AV solutions will only block known malware. With standard AV solutions, new malware variants can easily slip through the net.
End user security awareness training should be mandatory for all employees and training needs to be a continuous process. A once a year training session is no longer sufficient. Regular training throughout the year is required to ensure employees are made aware of the latest threats and tactics being used to gain access to login credentials and install malware.
For further information on improving email security to improve protection against phishing attacks, contact the TitanHQ team today.
Adobe has issued an unscheduled update to correct flaws in Adobe Flash Player, including a zero-day vulnerability that is currently being exploited in the wild by an APT threat group on targets in Russia. One target was a Russian healthcare facility that provides medical and cosmetic surgery services to high level civil servants of the Russian Federation.
The zero-day flaw is a use-after-free vulnerability – CVE-2018-15982 – which allows arbitrary code execution and privilege execution in Flash Player. A malicious Flash object runs malicious code on a victim’s computer which gives command line access to the system.
The vulnerability was discovered by security researchers at Gigamon ATR who reported the flaw to Adobe on November 29. Researchers at Qihoo 360 identified a spear phishing campaign that is being used to deliver a malicious document and associated files that exploit the flaw. The document used in the campaign was a forged employee questionnaire.
The emails included a .rar compressed file attachment which contained a Word document, the vulnerability, and the payload. If the .rar file is unpacked and the document opened, the user is presented with a warning that the document may be harmful to the computer. If the content is enabled, a malicious command is executed which extracts and runs the payload – A Windows executable file named backup.exe that is disguised as an NVIDIA Control Panel application. Backup.exe serves as a backdoor into a system. The malicious payload collects system information which is sent back to the attackers via HTTP POST. The payload also downloads and executes shell code on the infected device.
Qihoo 360 researchers have named the campaign Operation Poison Needles due to the identified target being a healthcare clinic. While the attack appears to be politically motivated and highly targeted, now that details of the vulnerability have been released it is likely that other threat groups will use exploits for the vulnerability in more widespread attacks.
It is therefore important for businesses that have Flash Player installed on some of their devices to update to the latest version of the software as soon as possible. That said, uninstalling Flash Player, if it is not required, is a better option given the number of vulnerabilities that are discovered in the software each month.
The vulnerability is present in Flash Player 18.104.22.168 and all earlier versions. Adobe has corrected the flaw together with a DLL hijacking vulnerability in version 22.214.171.124.
A new module has been added to TrickBot malware that adds point-of-sale (POS) data collection capabilities.
TrickBot is a modular malware that is being actively developed. In early November, TrickBot was updated with a password stealing module, but the latest update has made it even more dangerous, especially for hotels, retail outlets, and restaurants: Businesses that process large volumes of card payments.
The new module was identified by security researchers at Trend Micro who note that, at present, the module is not being used to record POS data such as credit/debit card numbers. Currently, the new TrickBot malware module is only collecting data about whether an infected device is part of a network that supports POS services and the types of POS systems in use. The researchers have not yet determined how the POS information will be used, but it is highly likely that the module is being used for reconnaissance. Once targets with networks supporting POS systems have been identified, they will likely be subjected to further intrusions.
The new module, named psfin32, is similar to a previous network domain harvesting module, but has been developed specifically to identify POS-related terms from domain controllers and basic accounts. The module achieves this by using LDAP queries to Active Directory Services which search for a dnsHostName that contains strings such as ‘pos’, ‘retail’, ‘store’, ‘micros’, ‘cash’, ‘reg’, ‘aloha’, ‘lane’, ‘boh’, and ‘term.’
The timing of the update, so close to the holiday period, suggests the threat actors are planning to take advantage of the increase in holiday trade and are gathering as much information as possible before the module is used to harvest POS data.
The recent updates to TrickBot malware have been accompanied by a malicious spam email campaign (identified by Brad Duncan) which is targeting businesses in the United States. The malspam campaign uses Word documents containing malicious macros that download the TrickBot binary.
Protecting against TrickBot and other information stealing malware requires a defense-in-depth approach to cybersecurity. The main attack vector used by the threat actors behind TrickBot is spam email, so it is essential for an advanced anti-spam solution to be deployed to prevent malicious messages from being delivered to end users’ inboxes. End user training is also essential to ensure employees are made aware of the danger of opening emails from unknown senders, launching suspicious email attachments, and clicking hyperlinks in those messages.
Antivirus solutions and endpoint security controls should also be deployed to identify and quarantine potentially malicious files in case malware makes it past perimeter defenses.
A California wildfire scam is circulating that requests donations to help the victims of the recent wildfires. The emails appear to come from the CEO of a company and are directed at its employees in the accounts and finance department.
It should come as no surprise that cybercriminals are taking advantage of yet another natural disaster and are attempting to con people into giving donations. Scammers often take advantage of natural disasters to pull on the heart strings and defraud businesses. Similar scams were conducted in the wake of the recent hurricanes that hit the United States and caused widespread damage.
The California wildfire scam, identified by Agari, is a form of business email compromise (BEC) attack. The emails appear to have been sent by the CEO of a company, with his/her email address used to send messages to company employees. This is often achieved by spoofing the email address although in some cases the CEO’s email account has been compromised and is used to send the messages.
The California wildfire scam contains one major red flag. Instead of asking for a monetary donation, the scammers request money in the form of Google play gift cards. The messages request the redemption codes be sent back to the CEO by return.
The emails are sent to employees in the accounts and finance departments and the emails request that the money be sent in 4 x $500 denomination gift cards. If these are sent back to the CEO, he/she will then forward them on to company clients that have been affected by the California wildfires.
The reason Google play gift cards are requested is because they can easily be exchanged on darknet forums for other currencies. The gift cards are virtually impossible to trace back to the scammer.
The messages are full of grammatical errors and spelling mistakes. Even so, it is another sign that the messages are not genuine. However, scams such as this are sent because they work. Many people have been fooled by similar scams in the past.
Protecting against scams such as this requires a combination of technical controls, end user training, and company policies. An advanced spam filtering solution should be used – SpamTitan for instance – to prevent messages such as these from reaching inboxes. SpamTitan checks all incoming emails for spam signatures and uses advanced techniques such as heuristics, machine learning, and Bayesian analysis to identify advanced and never-before-seen phishing attacks.
End user training is essential for all employees, especially those with access to corporate bank accounts. Those individuals are often targeted by scammers. Policies should be introduced that require all requests for changes to bank accounts, atypical payment requests, and wire transfers above a certain threshold to be confirmed by phone or in person before they are authorized.
A combination of these measures will help to protect businesses from BEC attacks and other email scams.
A previously unseen malware variant, dubbed the Cannon Trojan, is being used in targeted attacks on government agencies in the United States and Europe. The new malware threat has been strongly linked to a threat group known under many names – APT28, Fancy Bear, Sofacy, Sednet, Strontium – that has links to the Russian government.
The Cannon Trojan is being used to gather information on potential targets, collecting system information and taking screenshots that are sent back to APT28. The Cannon Trojan is also a downloader capable of installing further malware variants onto a compromised system.
The new malware threat is stealthy and uses a variety of tricks to avoid detection and hide communications with its C2. Rather than communicating over HTTP/HTTPS, like other malware variants used by APT28, the Cannon Trojan communicates via email over SMTPs and POP3S.
Once installed, an email is sent over SMTPS through port 465 and a further two email addresses are obtained through which the malware communicates with its C2 using the POP3S protocol to receive instructions and send back data. While the use of email for communicating with a C2 is not unknown, it is relatively rare. One advantage offered by this method of communication is it is more difficult to identify and block that HTTP/HTTPS.
The Cannon Trojan, like the Zebrocy Trojan which is also being used by APT28, is being distributed via spear phishing emails. Two email templates have been intercepted by Palo Alto Networks’ Unit 42 team, one of which takes advantage of interest in the Lion Air plane crash in Indonesia.
The Lion Air spear phishing campaign appears to provide information on the victims of the crash, which the email claims are detailed in an attached Word document titled Crash List (Lion Air Boeing 737).docx. The user must Enable Content to view the contents of the document. It is claimed that the document was created in an earlier version of Word and content must be enabled for the file to be displayed. Opening the email and enabling content would trigger the macro to run, which would then silently download the Cannon Trojan.
Rather than the macro running and downloading the payload straightaway, as an anti-analysis mechanism, the attackers use the Windows AutoClose tool to delay completion of the macro routine until the document is closed. Only then is the Trojan downloaded. Any sandbox that analyzes the document and exits before closing the document would be unlikely to identify it as malicious. Further, the macro will only run if a connection with the C2 is established. Even if the document is opened and content is enabled, the macro will not run without its C2 channel open.
The techniques used by the attackers to obfuscate the macro and hide communications make this threat difficult to detect. The key to preventing infection is blocking the threat at source and preventing it from reaching inboxes. The provision of end user training to help employees identify threats such as emails with attachments from unknown senders is also important.
Enhance Protection Against Zero-Day Malware and Spear Phishing
TitanHQ has developed a powerful anti-phishing and anti-spam solution that is effective at blocking advanced persistent threats and zero-day malware, which does not rely on signature-based detection methods. While dual anti-virus engines offer protection against 100% of known malware, unlike many other spam filtering solutions, SpamTitan uses a variant of predictive techniques to identify previously unseen threats and spear phishing attacks.
Greylisting is used to identify domains used for spamming that have yet to be blacklisted. All incoming emails are subjected to Bayesian analysis, and heuristics are used to identify new threats.
To further protect against phishing attacks, URIBL and SURBL protocols are used to scan embedded hyperlinks. SpamTitan also scans outbound mail to prevent abuse and identify attempted data theft.
For further information on SpamTitan, to book a product demonstration, or to sign up for a free trial of the full product, contact the TitanHQ team today.
There has been an increase in malspam campaigns spreading Emotet malware in recent weeks, with several new campaigns launched that spoof financial institutions – the modus operandi of the threat group behind the campaigns.
The Emotet malware campaigns use Word documents containing malicious macros. If macros are enabled, the Emotet malware payload is downloaded. The Word documents are either sent as email attachments or the spam emails contain hyperlinks which direct users to a website where the Word document is downloaded.
Various social engineering tricks have been used in these campaigns. One new tactic that was identified by Cofense is the wrapping of malicious hyperlinks in Proofpoint’s (PFPT) TAP URL Defense wrapping service to make the email appear benign.
According to Cofense, the campaign delivers Emotet malware, although Emotet in turn downloads a secondary payload. In past campaigns, Emotet has been delivered along with ransomware. First, Emotet steals credentials, then the ransomware is used to extort money from victims. In the latest campaign, the secondary malware is the banking Trojan named IcedID.
A further campaign has been detected that uses Thanksgiving themed spam emails. The messages appear to be Thanksgiving greetings for employees, and similarly contain a malicious hyperlink or document. The messages claim the document is a Thanksgiving card or greeting. Many of the emails have been personalized to aid the deception and include the user’s name. In this campaign, while the document downloaded appears to be a Word file, it is actually an XML file.
Emotet malware has been updated recently. In addition to stealing credentials, a new module has been added that harvests emails from an infected user. The previous 6 months’ emails – which include subjects, senders, and message content – are stolen. This new module is believed to have been added to improve the effectiveness of future phishing campaigns, for corporate espionage, and data theft.
The recent increase in Emotet malware campaigns, and the highly varied tactics used by the threat actors behind these campaigns, highlight the importance of adopting a defense in depth strategy to block phishing emails. Organizations should not rely on one cybersecurity solution to provide protection against email attacks.
Phishing campaigns target a weak link in security defenses: Employees. It is therefore important to ensure that all employees with corporate email accounts are taught how to recognize phishing threats. Training needs to be ongoing and should cover the latest tactics used by cybercriminals to spread malware and steal credentials. Employees are the last line of defense. Through security awareness training, the defensive line can be significantly strengthened.
As a frontline defense, all businesses and organizations should deploy an advanced spam filtering solution. While Office 365 email includes a basic level of protection against phishing attacks, a powerful third-party anti-phishing and spam filtering solution is required to provide protection against more sophisticated email attacks.
SpamTitan is an advanced email filtering solution that uses predictive techniques to provide superior protection against phishing attacks, zero-day attacks, and new malware variants that bypass signature-based defenses.
In addition to scanning message content, headers, attachments, and hyperlinks for spam and malware signatures, SpamTitan uses heuristics, machine learning, and Bayesian analysis to identify emerging threats. Greylisting is used to identify and block large scale spam campaigns, such as those typically conducted by the threat actors spreading banking Trojans and Emotet malware.
How SpamTitan Protects Businesses from Email Threats
A web filter – such as WebTitan – adds an additional layer of protection against web-based attacks by preventing end users from visiting malicious websites where malware is downloaded. A web filter assesses all attempts to access web content, checks sites against blacklists, assesses the domain, scans web content, and blocks access to sites that violate its policies.
For further information on how you can improve your defenses against web-based and email-based attacks and block malware, ransomware, botnets, viruses, phishing, and spear phishing attacks, contact TitanHQ today.
A new Dharma ransomware variant has been developed that is currently evading detection by the majority of antivirus engines. According to Heimdal Security, the latest Dharma ransomware variant captured by its researchers was only detected as malware by one of the 53 AV engines on VirusTotal.
Dharma ransomware (also known as CrySiS) first appeared in 2006 and is still being developed. This year, several new Dharma ransomware variants have been released, each using new file extensions for encrypted files (.bip, .xxxxx, .like, java, .arrow, .gamma, .arena, .betta, and .tron to name but a few). In the past two months alone four new Dharma ransomware variants have been detected.
The threat actors behind Dharma ransomware have claimed many victims in recent months. Successful attacks have been reported recently by Altus Baytown Hospital in Texas, the Arran brewery in Scotland, and the port of San Diego.
While free decryptors for Dharma ransomware have been developed, the constant evolution of this ransomware threat rapidly renders these decryptors obsolete. Infection with the latest variants of the ransomware threat only give victims three options: pay a sizeable ransom to recover files, restore files from backups, or face permanent file loss.
The latter is not an option given the extent of files that are encrypted. Restoring files from backups is not always possible as Dharma ransomware can also encrypt backup files and can delete shadow copies. Payment of a ransom is not advised as there is no guarantee that files can or will be decrypted.
Protecting against ransomware attacks requires a combination of policies, procedures, and cybersecurity solutions. Dharma ransomware attacks are mostly conducted via two attack vectors: The exploitation of Remote Desktop protocol (RDP) and via email malspam campaigns.
The latest Dharma ransomware variant attacks involve an executable file being dropped by a .NET file and HTA file. Infections occur via RDP-enabled endpoints using brute force attempts to guess passwords. Once the password is obtained, the malicious payload is deployed.
While it is not exactly clear how the Arran brewery attack occurred, a phishing attack is suspected. Phishing emails had been received just before file encryption. “We cannot be 100 percent sure that this was the vector that infection occurred through, but the timing seems to be more than coincidental,” said Arran Brewery’s managing director Gerald Michaluk.
To protect against RDP attacks, RDP should be disabled unless it is absolutely necessary. If RDP is required, access should only be possible through a VPN and strong passwords should be set. Rate limiting on login attempts should be configured to block login attempts after a set number of failures.
Naturally, good backup policies are essential. They will ensure that file recovery is possible without payment of a ransom. Multiple copies of backups should be made with one copy stored securely off site.
To protect against email-based attacks, an advanced spam filter is required. Spam filters that rely on AV engines may not detect the latest ransomware variants. Advanced analyses of incoming messages are essential.
SpamTitan can improve protection for businesses through combination of two AV engines and predictive techniques to block new types of malware whose signatures have not yet been uploaded to AV engines.
For further information on SpamTitan and protecting your email gateway from ransomware attacks and other threats, speak to TitanHQ’s security experts today.
Phishing is the number one security threat faced by businesses. In this post we explore why phishing is such as serious threat and the top phishing lures that are proving to be the most effective at getting employees to open malicious attachments and click on hyperlinks and visit phishing websites.
Phishing is the Biggest Security Threat Faced by Businesses
Phishing is a tried and tested social engineering technique that is favored by cybercriminals for one very simple reason. It is very effective. Phishing emails can be used to fool end users into installing malware or disclosing their login credentials. It is an easy way for hackers to gain a foothold in a network to conduct further cyberattacks on a business.
Phishing works because it targets the weakest link in security defenses: End users. If an email is delivered to an inbox, there is a relatively high probability that the email will be opened. Messages include a variety of cunning ploys to fool end users into taking a specific action such as opening a malicious email attachment or clicking on an embedded hyperlink.
Listed below are the top phishing lures of 2018 – The messages that have proven to be the most effective at getting end users to divulge sensitive information or install malware.
Top Phishing Lures of 2018
Determining the top phishing lures is not straightforward. Many organizations are required to publicly disclose data breaches to comply with industry regulations, but details of the phishing lures that have fooled employees are not usually made public.
Instead, the best way to determine the top phishing lures is to use data from security awareness training companies. These companies have developed platforms that businesses can use to run phishing simulation exercises. To obtain reliable data on the most effective phishing lures it is necessary to analyze huge volumes of data. Since these phishing simulation platforms are used to send millions of dummy phishing emails to employees and track responses, they are useful for determining the most effective phishing lures.
In the past few weeks, two security awareness training companies have published reports detailing the top phishing lures of 2018: Cofense and KnowBe4.
Top Phishing Lures on the Cofense Platform
Cofense has created two lists of the top phishing lures of 2018. One is based on the Cofense Intelligence platform which collects data on real phishing attacks and the second list is compiled from responses to phishing simulations.
Both lists are dominated by phishing attacks involving fake invoices. Seven out of the ten most effective phishing campaigns of 2018 mentioned invoice in the subject line. The other three were also finance related: Payment remittance, statement and payment. This stands to reason. The finance department is the primary target in phishing attacks on businesses.
The list of the top phishing lures from phishing simulations were also dominated by fake invoices, which outnumbered the second most clicked phishing lure by 2 to 1.
Number of Reported Emails
New Message in Mailbox
Online Order (Attachment)
Secure Message (MS Office Macro)
Online Order (Hyperlink)
Confidential Scanned document (Attachment)
Conversational Wire transfer (BEC Scam)
Top Phishing Lures on the KnowBe4 Platform
KnowBe4 has released two lists of the top phishing lures of Q3, 2018, which were compiled from responses to simulated phishing emails and real-world phishing attempted on businesses that were reported to IT security departments.
The most common real-world phishing attacks in Q3 were:
You have a new encrypted message
IT: Syncing Error – Returned incoming messages
HR: Contact information
FedEx: Sorry we missed you.
Microsoft: Multiple log in attempts
IT: IMPORTANT – NEW SERVER BACKUP
Wells Fargo: Irregular Activities Detected on Your Credit Card
LinkedIn: Your account is at risk!
Microsoft/Office 365: [Reminder]: your secured message
Coinbase: Your cryptocurrency wallet: Two-factor settings changed
The most commonly clicked phishing lures in Q3 were:
% of Emails Clicked
Password Check Required Immediately
You Have a New Voicemail
Your order is on the way
Change of Password Required Immediately
De-activation of [[email]] in Process
UPS Label Delivery 1ZBE312TNY00015011
Revised Vacation & Sick Time Policy
You’ve received a Document for Signature
Spam Notification: 1 New Messages
[ACTION REQUIRED] – Potential Acceptable Use Violation
The Importance of Blocking Phishing Attacks at their Source
If login credentials to email accounts, Office 365, Dropbox, and other cloud services are obtained by cybercriminals, the accounts can be plundered. Sensitive information can be stolen and Office 365/email accounts can be used for further phishing attacks on other employees. If malware is installed, cybercriminals can gain full control of infected devices. The cost of mitigating these attacks is considerable and a successful phishing attack can seriously damage a company’s reputation.
Due to the harm that can be caused by phishing, it is essential for businesses of all sizes to train staff how to identify phishing threats and implement a system that allows suspicious emails to be reported to security teams quickly. Resilience to phishing attacks can be greatly improved with an effective training program and phishing email simulations. It is also essential to deploy an effective email security solution that blocks threats and ensures they are not delivered to inboxes.
SpamTitan is a highly effective, easy to implement email filtering solution that blocks more than 99.9% of spam and phishing emails and 100% of known malware through dual anti-virus engines (Bitdefender and ClamAV). With SpamTitan protecting inboxes, businesses are less reliant on their employees’ ability to identify phishing threats.
SpamTitan subjects each incoming email to a barrage of checks to determine if a message is genuine and should be delivered or is potentially malicious and should be blocked. SpamTitan also performs checks on outbound emails to ensure that in the event that an email account is compromised, it cannot be used to end spam and phishing emails internally and to clients and contacts, thus helping to protect the reputation of the business.
Improve Office 365 Email Security with SpamTitan
There are more than 135 million subscribers to Office 365, and such high numbers make Office 365 a big target for cybercriminals. One of the main ways that Office 365 credentials are obtained is through phishing. Emails are crafted to bypass Office 365 defenses and hyperlinks are used to direct end users to fake Office 365 login pages where credentials are harvested.
Businesses that have adopted Office 365 are likely to still see a significant number of malicious emails delivered to inboxes. To enhance Office 365 security, a third-party email filtering control is required. If SpamTitan is installed on top of Office 365, a higher percentage of phishing emails and other email threats can be blocked at source.
To find out more about SpamTitan, including details of pricing and to register for a free trial, contact the TitanHQ team today. During the free trial you will discover just how much better SpamTitan is at blocking phishing attacks than standard Office 365 anti-spam controls.
A new Office 365 threat has been detected that stealthily installs malware by hiding communications and downloads by abusing legitimate Windows components.
New Office 365 Threat Uses Legitimate Windows Files to Hide Malicious Activity
The attack starts with malspam containing a malicious link embedded in an email. Various themes could be used to entice users into clicking the link, although one recent campaign masquerades as emails from the national postal service in Brazil.
The emails claim the postal service attempted to deliver a package, but the delivery failed as there was no one in. The tracking code for the package is included in the email and the user is requested to click the link in the email to receive the tracking information.
In this case, clicking the link will trigger a popup asking the user to confirm the download of a zip file, which it is alleged contains the tracking information. If the zip file is extracted, the user is required to click on a LNK file to receive the information. The LNK file runs cmd.exe, which executes a Windows Management Instrumentation (WMI) file: wmic.exe. This legitimate Windows file will be used to communicate with the attacker’s C2 server and will create a copy of another Windows file – certutil.exe in the %temp% folder with the name certis.exe. A script then runs which instructs the certis.exe file to connect to a different C2 server to download malicious files.
The aim of this attack is to use legitimate Windows files to download the malicious payload: A banking Trojan. The use of legitimate Windows files for communication and downloading files helps the attackers bypass security controls and install the malicious payload undetected.
These Windows files have the capability to download other files for legitimate purposes, so it is hard for security teams to identify malicious activity. This campaign targets users in Brazil, but this Office 365 threat should be a concern for all users as other threat actors have also adopted this tactic to install malware.
Due to the difficultly distinguishing between legitimate and malicious wmic.exe and certutil.exe activity, blocking an office 365 threat such as this is easiest at the initial point of attack: Preventing the malicious email from being delivered to an inbox and providing security awareness training to employees to help them identify this Office 365 threat. The latter is essential for all businesses. Employees can be turned into a strong last line of defense through security awareness training. The former can be achieved with a spam filtering solution such as SpamTitan. SpamTitan will prevent the last line of defense from being tested.
How to Block this Office 365 Threat with SpamTitan and Improve Email Security
Microsoft uses several techniques to identify malspam and prevent malicious messages from reaching users’ inboxes; however, while efforts have been made to improve the effectiveness of the spam filtering controls of Office 365, many malicious messages are still delivered.
To improve Office 365 security, a third-party spam filtering solution should be used. SpamTitan has been developed to allow easy integration into Office 365 and provides superior protection against a wide range of email threats.
SpamTitan uses a variety of methods to prevent malspam from being delivered to end users’ inboxes, including predictive techniques to identify threats that are misidentified by Office 365 security controls. These techniques ensure industry-leading catch rates in excess of 99.9% and prevent malicious emails from reaching inboxes.
How SpamTitan Protects Businesses from Email Threats
Security Solutions for MSPs to Block Office 365 Threats
Many MSPs resell Office 365 licenses to their customers. Office 365 allows MSPs to capture new business, but the margins are small. By offering additional services to enhance Office 365 security, MSPs can make their Office 365 offering more desirable to businesses while improving the profitability of Office 365.
TitanHQ has been developing innovative email and web security solutions for more than 25 years. Those solutions have been developed from the ground up with MSPs for MSPs. Three solutions are ideal for use with Office 365 for compliance ad to improve security – SpamTitan email filtering, WebTitan web filtering, and ArcTitan email archiving.
By incorporating these solutions into Office 365 packages, MSPs can provide clients with much greater value as well as significantly boosting the profitability of offering Office 365.
To find out more about each of these solutions, speak to TitanHQ. The MSP team will be happy to explain how the products work, how they can be implemented, and how they can boost margins on Office 365.
Hackers have been going back to school and entering higher education. Quite literally in fact, although not through conventional channels. Entry is gained through cyberattacks on universities, which have increased over the course of the past 12 months, according to figures recently released by Kaspersky Lab.
Cyberattacks on Universities on the Rise
Credit cards information can be sold for a few bucks, but universities have much more valuable information. As research organizations they have valuable proprietary data. The results of research studies are particularly valuable. It may not be possible to sell data as quickly as credit cards and Social Security numbers, but there are certainly buyers willing to pay top dollar for valuable research. Nation state sponsored hacking groups are targeting universities and independent hacking groups are getting in on the act and conducting cyberattacks on universities.
There are many potential attack vectors that can be used to gain access to university systems. Software vulnerabilities that have yet to be patched can be exploited, misconfigured cloud services such as unsecured S3 buckets can be accessed, and brute force attempts can be conducted to guess passwords. However, phishing attacks on universities are commonplace.
Phishing is often associated with scams to obtain credit card information or login credentials to Office 365 accounts, with businesses and healthcare organizations often targeted. Universities are also in the firing line and are being attacked.
The reason phishing is so popular is because it is often the easiest way to gain access to networks, or at least gain a foothold for further attacks. Universities are naturally careful about guarding their research and security controls are usually deployed accordingly. Phishing allows those controls to be bypassed relatively easily.
A successful phishing attack on a student may not prove to be particularly profitable, at least initially. However, once access to their email account is gained, it can be used for further phishing attacks on lecturers for example.
Spear phishing attacks on lecturers and research associates offer a more direct route. They are likely to have higher privileges and access to valuable research data. Their accounts are also likely to contain other interesting and useful information that can be used in a wide range of secondary attacks.
Email-based attacks can involve malicious attachments that deliver information stealing malware such as keyloggers, although many of the recent attacks have used links to fake university login pages. The login pages are exact copies of the genuine login pages used by universities, the only difference being the URL on which the page is located.
More than 1,000 Phishing Attacks on Universities Detected in a Year
According to Kaspersky Lab, more than 1,000 phishing attacks on universities have been detected in the past 12 months and 131 universities have been targeted. Those universities are spread across 16 countries, although 83/131 universities were in the United States.
Preventing phishing attacks on universities, staff, and students requires a multi layered approach. Technical controls must be implemented to reduce risk, such as an advanced spam filter to block the vast majority of phishing emails and stop them being delivered to end users. A web filtering solution is important for blocking access to phishing websites and web pages hosting malware. Multi-factor authentication is also essential to ensure that if account information is compromised or passwords are guessed, an additional form of authentication is required to access accounts.
As a last line of defense, staff and students should be made aware of the risk from phishing. Training should be made available to all students and cybersecurity awareness training for researchers, lecturers, and other staff should be mandatory.
Police in Iceland have said a highly sophisticated phishing attack is the largest ever cyberattack the country has ever experienced. The campaign saw thousands of messages sent that attempted to get Icelanders to install a remote access tool that would give the attackers full access to their computers.
The software used in this campaign is a legitimate remote access tool called Remcos. Remcos is used to allow remote access to a computer, often for the purpose of providing IT support, for surveillance, or as an anti-theft tool for laptop computers. However, while it was developed for legitimate use, because it gives the administrator full control over the computer once installed, it has significant potential to be used for malicious purposes. Unsurprisingly, Remcos has been used by cybercriminals in several malware campaigns in the past, often conducted via spear phishing campaigns. One notable attack involved the spoofing of the Turkish Revenue Administration, Turkey’s equivalent of the IRS, to get the RAT installed to provide access to victim’s computers.
The use of Remcos for malicious purposes violates the terms and conditions of use. If discovered, the developer can block the customer’s license to prevent use of the software. However, during the time that Remcos is present on a system, considerable harm can be caused – sabotage, theft of sensitive information, installation of malicious software, and file encryption with ransomware to name but a few.
As was the case in Turkey, the phishing campaign in Iceland attempted to fool end users into installing the program through deception. In this case, the emails claimed to have come from the Icelandic Police. The emails used fear to get recipients of the message to click a link in the email and download the remote access tool.
The emails informed the recipients that they were required to visit the police for questioning. Urgency was added by informing the recipient of the message that an arrest warrant would be issued if they failed to respond. Clicking the link in the email directed the user to what appeared to be the correct website of the Icelandic police. The website was a carbon copy of the legitimate website and required the visitor to enter their Social Security number along with an authentication code sent in the email to find out more information about the police case.
In Iceland, Social Security numbers are often required on websites to access official services, so the request would not appear unusual. On official websites, Social Security numbers are checked against a database and are rejected if they are not genuine. In this case, the attacker was also able to check the validity of the SSN, which means access to a database had been gained, most likely an old database that had been previously leaked or the attacker may have had legitimate access and misused the database.
After entering the information, a password protected archive was downloaded which allegedly contained documents with details of the case. The webpage provided the password to unlock the password protected archive, which contained a .scr file disguised as a Word document.
In this case, the RAT was augmented with a VBS script to ensure it ran on startup. The RAT had keylogging and password stealing capabilities and was used to steal banking credentials. After gaining access to banking credentials, the information was sent back to command and control servers in Germany and the Netherlands.
While the campaign looked entirely legitimate, a common trick was used to fool recipients of the email, which number in the thousands. The domain used in the attack closely resembled the official police website, logreglan.is but contained a lower case i instead of the second l – logregian.is. A casual glance at the sender of the email or the domain name in the address bar would unlikely reveal the domain was not genuine. Further, the link in the email replaced the lower case i with a capital I, which is almost impossible to distinguish from a lower-case L.
The Icelandic police responded quickly to the attack and the malicious domain was taken down the following day. It is unknown how may people fell for the scam.
A new sextortion scam has been detected that attempts to fool the recipient of the message into believing their email account has been compromised and that their computer is under full control of the attacker.
The scammers spoof the user’s email address so that it appears that the message has been sent from the user’s email account – The sender and the recipient names are identical.
A quick and easy check that can be performed to determine whether the sender name displayed is the actual account that has been used to send the email is to click forward. When this is done, the display name is shown, but so too is the actual email address that the message has been sent from. In this case, that check fails making it seem that the user’s email account has actually been compromised.
The messages used in this campaign attempt to extort money by suggesting the hacker has gained access to the user’s computer by means of a computer virus. It is claimed that the virus gives the attacker the ability to monitor the user’s internet activities in real time and use the computer’s webcam to record the user.
The attacker claims that the virus was downloaded to the computer as a result of the user visiting an adult website and that while viewing internet pornography the webcam was active and recording. “Your tastes are so weird,” states the scammer in the email.
The scammer claims that they will synch the webcam footage with the content that the user was viewing and send a copy of the video to all the user’s partner, friends, and relatives. It is claimed that all the user’s accounts have been compromised. The message also includes an example of one of the user’s passwords.
While it is extremely unlikely that the password supplied in the email is valid for any of the user’s account, the message itself will still be chilling for some individuals and will be enough to get them to make the requested payment of $800 to have the footage deleted.
However, this is a sextortion scam where the attackers have no leverage as there is no virus and no webcam footage. However, it is clear that at least some recipients were not willing to take a chance.
According to security researcher SecGuru, who received a version of the email in Dutch and found a similar English language version, the Bitcoin account used by the scammer had received payments of 0.37997578 Bitcoin – $3,500 – in the first two days of the campaign. Now 7 days after the first payment was made, the earnings have risen to 1.1203 Bitcoin – $6,418 – with 15 individuals having paid.
This scam will no doubt be familiar to viewers of Black Mirror, a recent episode of which covered a very similar sextortion scam.
This tactic is nothing new. Many similar scams have been conducted in the past and many more will be in the future. What makes this campaign more chilling is the apparent hijacking of the email account and the highly effective spoofing.
A similar sextortion scam was conducted in the summer which also had an interesting twist. It used an old password for the account that had been obtained from a data dump. In that case, the password was real, at least at some point in the past, which made the scam seem genuine.
Office 365 phishing attacks are commonplace, highly convincing, and Office 365 spam filtering controls are easily being bypassed by cybercriminals to ensure messages reach inboxes. Further, phishing forms are being hosted on webpages that are secured with valid Microsoft SLL certificates to convince users the websites are genuine.
Office 365 Phishing Attacks Can Be Difficult to Identify
In the event of a phishing email making it past perimeter defenses and arriving in an inbox, there are several tell-tale signs that the email is not genuine.
There are often spelling mistakes, incorrect grammar, and the messages are sent from questionable senders or domains. To improve the response rate, cybercriminals are now spending much more time carefully crafting their phishing emails and they are often virtually indistinguishable from genuine communications from the brand they are spoofing. In terms of formatting, they are carbon copies of genuine emails complete with the branding, contact information, sender details, and logos of the company being spoofed. The subject is perfectly believable and the content well written. The actions the user is requested to take are perfectly plausible.
Hyperlinks are contained in emails that direct users to a website where they are required to enter their login credentials. At this stage of the phishing attack there are usually further signs that all is not as it seems. A warning may flash up that the website may not be genuine, the website may start with HTTP rather than the secure HTTPS, or the SSL certificate may not be owned by the company that the website is spoofing.
Even these tell-tale signs are not always there, as has been shown is several recent Office 365 phishing attacks, which have the phishing forms hosted on webpages that have valid Microsoft SSL certificates or SSL certificates that have been issued to other cloud service providers such as CloudFlare, DocuSign, or Google.
Microsoft Azure Blog Storage Phishing Scam
One recent phishing scam uses Azure blob storage to obtain a valid SSL certificate for the phishing form. Blob storage can be used for storing a variety of unstructured data. While it is possible to use HTTP and HTTPS, the phishing campaign uses the latter, which will show a signed SSL certificate from Microsoft.
In this campaign, end users are sent an email with a button that must be clicked to view the content of a cloud-hosted document. In this case, the document appears to be from a Denver law firm. Clicking the button directs the user to an HTML page hosted on Azure blog storage that requires Office 365 credentials to be entered to view the document. Since the document is hosted on Azure blob storage, a Microsoft service, it has a valid SSL certificate that was issued to Microsoft adding legitimacy to the scam.
Entering login credentials into the form will send them to the attackers. The user will then be directed to another webpage, most likely unaware that they have been phished.
CloudFlare IPFS Gateway Abused
A similar campaign has been detected that abuses the CloudFlare IPFS gateway. Users can access content on the IPFS distributed file system through a web browser. When connecting to this gateway through a web browser, the HTML page will be secured with a CloudFlare SSL certificate. In this case, the login requires information to be entered including username, password, and recovery email address and phone number – which will be forwarded to the attacker, while the user will be directed to a PDF file unaware that their credentials have been stolen.
Office 365 Phishing Protections are Insufficient
Office 365 users are being targeted by cybercriminals as they know Office 365 phishing controls can be easily bypassed. Even with Microsoft’s Advanced Threat Protection for Office 365, phishing emails are still delivered. A 2017 study by SE Labs showed even with this additional anti-phishing control, Office 365 anti-phishing measures were only rated in the low-middle of the market for protection. With only the basic Exchange Online Protection, the protection was worse still.
Whether you run an SMB or a large enterprise, you are likely to receive high volumes of spam and phishing emails and many messages will be delivered to end users’ inboxes. Since the emails can be virtually impossible for end users to identify as malicious, it is probable that all but the most experienced, well trained, security conscious workers will be fooled. What is therefore needed is an advanced third-party spam filtering solution that will work alongside Office 365 spam filtering controls to provide far greater protection.
How to Make Office 365 More Secure
While Office 365 will block spam emails and phishing emails (Osterman Research showed it blocks 100% of known malware), it has been shown to lack performance against advanced phishing threats such as spear phishing.
Office 365 does not have the same level of predictive technology as dedicated on-premises and cloud-based email security gateways which are much better at detecting zero-day attacks, new malware, and advanced spear phishing campaigns.
To greatly improve protection what is needed is a dedicated third-party spam filtering solution for Office 365 such as SpamTitan. SpamTitan focuses on defense in depth, and provides superior protection against advanced phishing attacks, new malware, and sophisticated email attacks to ensure malicious messages are blocked or quarantined rather than being delivered to end users’ inboxes. Some of the additional protections provided by SpamTitan against Office 365 phishing attacks are detailed in the image below:
To find out more about making Office 365 more secure and how SpamTitan can benefit your company, contact TitanHQ. Our highly experienced sales consultants will be able to advise you on the full range of benefits of SpamTitan, the best deployment option, and can offer you a free trial to allow you to personally evaluate the solution before committing to a purchase.
With the largest economy, the United States is naturally a major target for cybercriminals. Various studies have been conducted on the cost of cybercrime in the United States, but little data is available on cybercrime losses in Germany – Europe’s largest economy.
The International Monetary Fund produces a list of countries with the largest economies. In 2017, Germany was ranked fourth behind the United States, China, and Japan. Its GDP of $3,68 trillion represents 4.61% of global GDP.
A recent study conducted by Germany’s federal association for Information Technology – BitKom – has placed a figure on the toll that cybercrime is taking on the German economy.
The study was conducted on security chiefs and managers at Germany’s top 503 companies in the manufacturing sector. Based on the findings of that survey, BitKom estimated cybercrime losses in Germany to be €43 billion ($50.2 billion). That represents 1.36% of the country’s GDP.
Extrapolate those cybercrime losses in Germany and it places the global cost of cybercrime at $1 trillion, substantially higher than the $600 billion figure estimate from cybersecurity firm McAfee and the Center for Strategic and International Studies (CSIS) in February 2018. That study placed the global percentage of GDP lost to cybercrime at between 0.59% and 0.80%, with GDP losses to cybercrime across Europe estimated to be between 0.79 to 0.89% of GDP.
Small to Medium Sized Businesses Most at Risk
While cyberattacks on large enterprises have potential to be highly profitable for cybercriminals, those firms tend to have the resources available to invest heavily in cybersecurity. Attacks on large enterprises are therefore much more difficult and time consuming. It is far easier to target smaller companies with less robust cybersecurity defenses.
Small to medium sized businesses (SMBs) often lack the resources to invest heavily in cybersecurity, and consequently are far easier to attack. The BitKom study confirmed that these companies, which form the backbone of the economy in Germany, are particularly vulnerable to cyberattacks and have been extensively targeted by cybercriminals.
It is not only organized cybercriminal groups that are conducting these attacks. Security officials in Germany have long been concerned about attacks by well-resourced foreign spy agencies. Those agencies are using cyberattacks to gain access to the advanced manufacturing techniques developed by German firms that give them a competitive advantage. Germany is one of the world’s leading manufacturing nations, so it stands to reason that the German firms are an attractive target.
Cybercriminals are extorting money from German firms and selling stolen data on the black market and nation-state sponsored hackers are stealing proprietary data and technology to advance manufacturing in their own countries. According to the survey, one third of companies have had mobile phones stolen and sensitive digital data has been lost by a quarter of German firms. 11% of German firms report that their communications systems have been tapped.
Attacks are also being conducted to sabotage German firms. According to the study, almost one in five German firms (19%) have had their IT and production systems sabotaged through cyberattacks.
Businesses Must Improve Their Defenses Against Cyberattacks
“With its worldwide market leaders, German industry is particularly interesting for criminals,” said Achim Berg, head of BitKom. Companies, SMBs in particular, therefore need to take cybersecurity much more seriously and invest commensurately in cybersecurity solutions to prevent cybercriminals from gaining access to their systems and data.
According to Thomas Haldenweg, deputy president of the BfV domestic intelligence agency, “Illegal knowledge and technology transfer … is a mass phenomenon.”
Preventing cyberattacks is not straightforward. There is no single solution that can protect against all attacks. Only defense-in-depth will ensure that cybercriminals and nation-state sponsored hacking groups are prevented from gaining access to sensitive information.
Companies need to conduct regular, comprehensive organization-wide risk analyses to identify all threats to the confidentiality, integrity, and availability of their data and systems. All identified risks must then be addressed through a robust risk management process and layered defenses implemented to thwart attackers.
One of the main vectors for attack is email. Figures from Cofense suggest that 91% of all cyberattacks start with a malicious email. It stands to reason that improving email security should be a key priority for German firms. This is an area where TitanHQ can help.
TitanHQ is a provider of world-class cybersecurity solutions for SMBs and enterprises that block the most commonly used attack vectors. To find out more about how TitanHQ’s cybersecurity solutions can help to improve the security posture of your company and block email and web-based attacks, contact the TitanHQ sales team today.
A new Python-based form of ransomware has been detected that masquerades as Locky, one of the most widely used ransomware variants in 2016. The new ransomware variant has been named PyLocky ransomware by security researchers at Trend Micro who have observed it being used in attacks in Europe, particularly France, throughout July and August.
The spam email campaigns were initially sent in relatively small batches, although over time the volume of emails distributing PyLocky ransomware has increased significantly.
Various social engineering tactics are being used by the attackers to get the ransomware installed, including fake invoices. The emails intercepted by Trend Micro have included an embedded hyperlink which directs users to a malicious webpage where a zip file is downloaded. The zip file contains PyLocky ransomware which has been compiled using the PyInstaller tool, which allows Python applications to be converted to standalone executable files.
If installed, PyLocky ransomware will encrypt approximately 150 different file types including Office documents, image files, sound files, video files, databases, game files, archives, and program files. Files stored on all logical drives will be encrypted and the original copies will be overwritten. A ransom note is then dropped on the desktop which has been copied from the note used by the threat actors behind Locky, although the two cryptoransomware threats are unrelated. Ransom notes are written in French, English, Korean, and Italian so it is probable that the attacks will become more widespread over the coming weeks.
While Python is not typically used to create ransomware, PyLocky is not the only Python-based ransomware variant to have been created. Pyl33t was used in several attacks in 2017, and CryPy emerged in 2016. What makes the latest ransomware variant stand out is its anti-machine learning capabilities, which help to prevent analysis using standard static analysis methods.
The ransomware abuses Windows Management Instrumentation (WMI) to determine the properties of the system on which it is installed. If the total visible memory of a system is 4GB or greater, the ransomware will execute immediately. If it is lower than 4GB, the ransomware will sleep for 11.5 days – an attempt to determine if it is in a sandbox environment.
Preventing attacks requires a variety of cybersecurity measures. An advanced spam filtering solution such as SpamTitan will help to prevent the spam emails being delivered to end users’ inboxes. A web filter, such as WebTitan, can be employed to control the websites that can be accessed by end users and block malicious file downloads. Security awareness training will help to ensure that end users recognize the threat for what it is. Advanced malware detection tools are required to identify the threat due to its anti-machine learning capabilities.
There is no free decryptor for PyLocky. Recovery without paying the ransom will depend on a viable backup copy existing, which has not also been encrypted in the attack.
A spam email campaign is being conducted targeting corporate email accounts to distribute Loki Bot malware. Loki Bot malware is an information stealer capable of obtaining passwords stored in browsers, obtaining email account passwords, FTP client logins, cryptocurrency wallet passwords, and passwords used for messaging apps.
In addition to stealing saved passwords, Loki Bot malware has keylogging capabilities and is potentially capable of downloading and running executable files. All information captured by the malware is transferred to the attacker’s C2 server.
Kaspersky Lab researchers identified an increase in email spam activity targeting corporate email accounts, with the campaign discovered to be used to spread Loki Bot malware. The malware was delivered hidden in a malicious email attachment.
The intercepted emails included an ICO file attachment. ICO files are copies of optical discs, which are usually mounted in a virtual CD/DVD drive to open. While specialist software can be used to open these files, most modern operating systems have the ability to access the contents of the files without the need for any additional software.
In this case, the ICO file contains Loki Bot malware and double clicking on the file will result in installation of the malware on operating systems that support the files (Vista and later).
It is relatively rare for ICO files to be used to deliver malware, although not unheard of. The unfamiliarity with ICO files for malware delivery may see end users attempt to open the files.
The campaign included a wide range of lures including fake purchase orders, speculative enquiries from companies containing product lists, fake invoices, bank transfer details, payment requests, credit notifications, and payment confirmations. Well-known companies such as Merrill Lynch, Bank of America, and DHL were spoofed in some of the emails.
A separate and unrelated spam email campaign has been identified that is using IQY files to deliver a new form of malware known as Marap. Marap malware is a downloader capable of downloading a variety of different payloads and additional modules.
Upon installation, the malware fingerprints the system and gathers information such as username, domain name, IP address, hostname, language, country, Windows version, details of Microsoft .ost files, and any anti-virus solutions detected on the infected computer. What happens next depends on the system on which it is installed. If the system is of particular interest, it is earmarked for a more extensive compromise.
Four separate campaigns involving millions of messages were detected by researchers at Proofpoint. One campaign included an IQY file as an attachment, one included an IQY file within a zip file and a third used an embedded IQY file in a PDF file. The fourth used a Microsoft Word document containing a malicious macro. The campaigns appear to be targeting financial institutions.
IQY files are used by Excel to download web content directly into spreadsheets. They have been used in several spam email campaigns in recent weeks to install a variety of different malware variants. The file type is proving popular with cybercriminals because many anti-spam solutions fail to recognize the files as malicious.
Since the majority of end users would not have any need to open ICO or IQY files, these file types should be added to the list of blocked file types in email spam filters to prevent them from being delivered to end users’ inboxes.
While the majority of phishing attempts are conducted via email, there has been a significant rise in the use of other communications platforms such messaging services, with WhatsApp phishing scams now increasing in popularity amongst phishers.
WhatsApp phishing attacks are common for two main reasons. First is the sheer number of people that are on the platform. In January 2018, the number of monthly users of WhatsApp worldwide reached 1.5 billion, up from 1 billion users six months previously. Secondly, is the lack of anti-phishing measures to prevent malicious messages from being delivered.
Many businesses have implemented spam filtering solutions such as SpamTitan, while personal users are benefiting by significant improvements to spam filtering on webmail services such as Gmail. Spam filtering solutions are highly effective at identifying phishing emails and other malicious messages and send them to the spam folder rather than delivering them to inboxes.
Messaging services often lack spam filtering controls. Therefore, malicious messages have a much greater chance of being delivered. Various tactics are used to entice recipients to click the links in the messages, usually an offer of a free gift, an exceptionally good special offer on a product – the new iPhone for instance – or a money off voucher or gift card is offered.
The messages contain a link that directs the recipient to the phishing website. The link usually contains a preview of the website, so even if a shortlink is used for the URL, the recipient can see some information about the site. A logo may be displayed along with the page title. That makes it much more likely that the link will be clicked.
Further, the message often comes from a known individual – A person in the user’s WhatsApp contact list. When a known individual vouches for the site, the probability of the link being clicked is much greater.
To add further legitimacy to the WhatsApp phishing scams, the websites often contact fake comments from social media sites confirming that a gift card has been won or a reward has been received. Some of those comments are positive, and some are neutral, as you would expect from a real prize draw where not everyone is a winner.
The websites used in WhatsApp phishing scams often use HTTPS, which show a green tick next to the URL to show that the site is ‘secure.’ Even though the green tick is no guarantee of the legitimacy of a site, many people believe the green tick means the site is genuine.
Gift cards are often given out for taking part in legitimate surveys, so the offer of either a gift card or entry into a free draw is not out of the ordinary. In return, the visitor to the site is required to answer some standard questions and provide information that would allow them to be contacted – their name, address, phone number, and email address for instance.
The information gathered through these sites is then used for further phishing attempts via email, telephone, or snail mail which aim to obtain even more personal information. After completing the questions, the website may claim that the user has one, which requires entry of bank account information or credit card details… in order for prize money to be paid or for confirmation of age.
These WhatsApp phishing scams often have another component which helps to spread the messages much more efficiently to other potential victims. Before any individual can claim their free prize or even submit their details for a prize draw, they must first agree to share the offer with some of their WhatsApp contacts.
If you receive an unsolicited link from a contact that offers a free gift or money-off voucher, there is a high chance it may not be genuine and is a WhatsApp phishing scam. If an offer seems too good to be true, it most likely is.
Hotels, restaurants, and telecommunications companies are being targeted with a new spam email campaign that delivers a new form of malware called AdvisorsBot. AdvisorsBot is a malware downloader which, like many malware variants, is being distributed vis spam emails containing Microsoft Word attachments with malicious macros.
Opening an infected email attachment and enabling macros on the document will see Advisorsbot installed. Advisorsbot’s primary role is to perform fingerprinting on an infected device. Information will be gathered on the infected device is then communicated to the threat actors’ command and control servers and further instructions are provided to the malware based on the information gathered on the system. The malware records system information, details of programs installed on the device, Office account details, and other information. It is also able to take screenshots on an infected device.
AdvisorsBot malware is so named because the early samples of the malware that were first identified in May 2018 contacted command and control servers that contained the word advisors.
The spam email campaign is primarily being conducted on targets in the United States, although infections have been detected globally. Several thousands of devices have been infected with the malware since May, according to the security researchers at Proofpoint who discovered the new malware threat. The threat actors believed to be behind the attacks are a APT group known as TA555.
Various email lures are being used in this malware campaign to get the recipients to open the infected attachment and enable macros. The emails sent to hotels appear to be from individuals who have been charged twice for their stay. The campaign on restaurants uses emails which claim that the sender has suffered food poisoning after eating in a particular establishment, while the attacks on telecommunications companies use email attachments that appear to be resumes from job applicants.
AdvisorsBot is written in C, but a second form of the malware has also been detected that is written in .NET and PowerShell. The second variant has been given the name PoshAdvisor. PoshAdvisor is executed via a malicious macro which runs a PowerShell command that downloads a PowerShell script which executes shellcode that runs the malware in the memory without writing it to the disk.
These malware threats are still under development and are typical of many recent malware threats which have a wide range of capabilities and the versatility to be used for many different types of attack such as information stealing, ransomware delivery, and cryptocurrency mining. The malicious actions performed are determined based on the system on which the malware has been installed. If that system is ideally suited for mining cryptocurrency, the relevant code will be installed. If the business is of particular interest, it will be earmarked for a more extensive compromise.
The best form of defense against this campaign is the use of an advanced spam filtering solution to prevent the emails from being delivered and security awareness training for employees to condition them how to respond when such a threat arrives in their inbox.
A new sextortion phishing threat has been detected that is proving to have the desired effect. Many recipients of the emails have paid up to avoid being exposed.
On the face of it, this sextortion phishing scam is as simple as it gets. A threat actor claims to have taken control of the target’s computer and recorded them via their webcam while they were visiting an adult website. A threat is made to publicly release the video of them viewing pornography unless a payment is made.
For some recipients of such an email, such a threat would be enough to get them opening their Bitcoin wallet and making the payment without a second’s hesitation. Most people would likely see the email for what it really is. A scam and an empty threat.
However, a second variant of the email is being used that is a lot more personalized and includes a snippet of information to add credibility to the scam. The message includes the user’s password as ‘confirmation’ that it is not an empty threat. The attacker also claims, through compromising the target’s computer, to have obtained all the victim’s contacts including contacts in their social media accounts.
While the threat actor claims to have control of the user’s computer, that is not the case. The password has been obtained from a previous data breach and a list has likely been purchased on the darknet.
For many of the email recipients, the password will be old and will have been changed long ago. That may be enough in some cases to see payment made. However, for those who are still using that password, the threat may seem very real.
This is in reality a very simple scam that in many cases only works because despite the risk of failing to change passwords frequently, recycling old passwords, and reusing passwords on multiple sites, the practice is still commonplace.
It is not known how many emails have been sent by the scammers – most likely millions – but it only takes a handful of people to respond and make payment for the scheme to be profitable.
So far, at least 151 people have responded to the sextortion phishing scam and made a payment to one of 313 Bitcoin addresses known to be used by the scammers. So far, at least 30.08 BTC had been raised – Approximately $250,000 – from the scam as of July 26 and it has only been running for a few weeks. The researcher tracking the payments (SecGuru) pointed out that the attackers have made three times as much as the individuals behind the WannaCry ransomware attacks last year.
Even without the password, the sextortion phishing scam has proved effective. Payments have been made in both versions of the scam. The standard scam asks for a payment of a few hundred dollars, although the inclusion of a password sees the payment rise considerably. Some individuals have been told it will cost them $8,000 to prevent the release of the video. Some individuals have paid thousands to the scammers.
Given the widespread coverage of the scam, and its success rate, it is probable that many more similar schemes will be conducted. Variations along the same theme could direct recipients to a phishing website where they are enticed into disclosing their current password, to an exploit kit that downloads malware, or to another scam site.
Protecting against a scam such as this is easiest by using strong passwords, regularly changing them, and never reusing passwords on multiple sites. It is also worthwhile periodically checking to find out if their credentials have been exposed in a data breach on HaveIBeenPwned.com and immediately changing passwords if they have.
Anyone receiving a sextortion phishing email such as this should be aware that this is a scam. If the password included is currently being used, it is essential to change it immediately across all sites. And of course, set a strong, unique password for each account.
The past year has seen a steady increase in the number of reported email account compromises, with the healthcare industry one of the main targets for hackers.
Some of those breaches have seen the protected health information of thousands of patients compromised, with the largest phishing attack in 2018 – The phishing attack on Boys Town National Research Hospital – seeing more than 105,000 patients’ healthcare information exposed. Due to reporting requirements under HIPAA, healthcare phishing attacks are highly visible, although email account compromises are occurring across all industry sectors and the problem is getting worse.
284% Increase in Email Account Compromises in a Year
The increase in successful phishing attacks has been tracked by Beazley, a provider of specialist insurance services. The company’s research shows the number of reported phishing attacks increased every quarter since Q1, 2017 when there were 45 reported breaches that involved email accounts being compromised. In Q2, 2018, there were 184 email account compromises reported. Between Q1, 2017 and Q1, 2018, the number of reported data breaches involving compromised email accounts increased by 284%.
Why are email account compromises increasing? What do hackers gain from accessing email accounts rather than say, gaining access to networks which store vast amounts of data?
It can take a significant amount of time and effort to identify a vulnerability such a missed patch, an exposed S3 bucket, or an unsecured medical device, and exploit it.
By comparison, gaining access to an email account is relatively easy. Once access is gained, accessing further email accounts becomes easier still. If a hacker can gain access to an email account with the right level of administrative privileges, it may be possible for the entire mail system of an organization to be accessed.
If a hacker can gain access to a single email account, the messages in the account can be studied to gain valuable information about a company, its employees, and vendors. The hackers can identify further targets within an organization for spear phishing campaigns – termed Business Email Compromise (BEC) attacks – and attacks on contractors and suppliers.
Once One Account is Breached, Others Will Follow
If an executive’s email account is compromised, it can be used to send requests for wire transfers to the accounts department, HR can be emailed requesting W2-Forms that contain all the information necessary for filing fake tax returns and for identity theft. Requests can be sent via email to redirect employees’ paychecks and phishing emails can be sent to other employees directing them to websites where they have to divulge their email credentials.
Figures from the FBI show just how lucrative these Business Email Compromise (BEC) phishing attacks can be. Since October 2013, more than $12.5 billion has been lost to BEC attacks, up from $5.3 billion in December 2016.
Once access to the email system is gained, it is much easier to craft highly convincing spear phishing emails. Past email conversations can be studied, and an individual’s style of writing emails can be copied to avoid raising any red flags.
Email Account Compromises Are Costly to Resolve
Beazley also notes that email account compromises are some of the costliest breaches to resolve, requiring many hours of painstaking work to manually checking each email in a compromised account for PII and PHI. One example provided involved a programmatic search of compromised email accounts to identify PHI, yet that search uncovered 350,000 documents that required a manual check. The cost of checking those documents alone was $800,000.
Beazley also notes that when investigating breaches, the breached entity often discovers that only half of the compromised email accounts have been identified. The data breaches are usually much more extensive than was initially thought.
Unfortunately, once access to a single email account is gained, it is much harder to prevent further email compromises as technological controls are not so effective at identifying emails sent from within a company. However, it is relatively easy to block the initial phishing attempt.
How to Prevent Email Account Compromises
Many companies fail to implement basic controls to block phishing attacks. Even when a phishing-related breach is experienced, companies often remain susceptible to further breaches. The Ponemon Institute/IBM Security Cost of a Data Breach study showed there is a 27.9% probability of a company experiencing a further breach in the 24 months following a data breach.
To prevent phishing attacks, companies need to:
Deploy an advanced spam filtering solution that blocks the vast majority of malicious messages
Provide ongoing security awareness training to all staff and teach employees how to identify phishing emails
Conduct regular phishing simulation exercises to reinforce training and condition employees to be more security aware
Implement two-factor authentication to prevent attempts to access email accounts remotely
Implement a web filter as an additional control to block the accessing of phishing websites
Use strong, unique passwords or passphrases to make brute force and dictionary attacks harder
Limit or prevent third party applications from connecting to Office 365 accounts, which makes it harder for PowerShell to be used to access email accounts for reconnaissance.
In recent weeks, several large healthcare data breaches have been reported that have seen cybercriminals gain access to employees’ email accounts and sensitive data, although the recently disclosed UnityPoint Health phishing attack stands out due to the huge number of individuals that have been impacted and the extent of sensitive data exposed.
UnityPoint Health is one of the largest healthcare systems serving Iowa residents. The Des Moines-based healthcare provider recently discovered that its employees have been targeted in a phishing campaign that has seen several email accounts compromised. Those email accounts contained the sensitive information of approximately 1.4 million patients.
That not only makes this the largest phishing incident to have been suffered by a U.S. healthcare provider in 2018, it is also the largest healthcare data breach of 2018 and one of the most serious phishing attacks and data breaches ever reported.
The UnityPoint Health phishing attack has seen highly sensitive data compromised, including names, addresses, health insurance information, medical record numbers, diagnoses, treatment information, lab test results, medications, providers, dates of service, Social Security numbers, driver’s license numbers and, for a limited number of patients, their payment card information.
The phishing emails were sent to employees between March 14 and April 3, 2018, although the breach was not detected until May 31. As is common in phishing attacks on businesses, access to email accounts was gained through the impersonation of a senior executive.
A series of spoofed emails were sent to employees that appeared to have come from a trusted executive’s email account. Employees who opened the email were instructed to click a link that required them to enter their email login information. That information was captured by the attackers who were then able to gain access to the employees’ email accounts.
The UnityPoint Health phishing attack potentially gave the hackers access to all the information stored in the compromised email accounts – Information that could be used for identity theft and fraud. It is unclear whether mailboxes were downloaded, although UnityPoint Health said its forensic investigation suggests that the primary goal was to divert payroll payments and to use account access to fool accounts department staff into making fraudulent wire transfers. It is unclear if any of those attempts succeeded.
This is also not the only UnityPoint Health phishing attack to be reported this year. In March, UnityPoint Health announced that 16,400 patients had been affected by a separate phishing attack that saw multiple email accounts compromised.
The latest incident has prompted the healthcare provider to implement new technology to detect phishing and BEC attacks, multi-factor authentication has been implemented, and additional security awareness training has been provided to employees. Credit monitoring and identify theft monitoring services have been offered to patients whose driver’s license or Social Security number has been exposed, and all patients have been notified by mail.
As the Ponemon Institute’s 2018 Cost of a Data Breach Study showed, the cost of these million-record+ data breaches is considerable. The average cost of such a breach was estimated to be around $40 million.
There has been a major increase in cryptojacking attacks in recent months. Many cybercriminal gangs now favoring this method of attack over ransomware and other forms of malware and are taking advantage of the high value of cryptocurrencies.
As with ransomware attacks, cybercriminals need to install malicious code on computers. Instead of encrypting files like ransomware, the code is used to mine for cryptocurrency. Mining cryptocurrencies involves a computers CPU being used to solve complex computational problems, which are necessary for verifying cryptocurrency transactions and adding to the blockchain. In exchange for verifying transactions, the miner is paid a small amount for the effort.
Devoting one computer to the task of cryptocurrency mining could generate a few dollars a day. Using multiple computers for the task can generate a substantial return. The more computers that are used, the more blocks can be added to the blockchain and the greater the profits. When a network of cryptocurrency mining slave computers can be amassed, the profits can be considerable. According to Kaspersky Lab, one cryptojacking gang that focusses on infecting enterprise servers and spreading the malicious code using NSA exploits, has generated around 9,000 Monero, which equates to $2 million.
Not all computers are suitable for mining cryptocurrency. One cybercriminal gang has got around this by developing malware that can decide whether to deploy a cryptocurrency miner or ransomware, with the decision based on the processing power of the computer. If its not suitable for use mining cryptocurrency, ransomware is deployed. This tactic helps maximize profits after compromising a device.
The use of cryptocurrency miners increased sharply last year as the value of cryptocurrencies started to soar. The price of those cryptocurrencies may have fallen, but cryptojacking attacks are still on the rise. The volume of new cryptojacking malware variants has also increased considerably over the past few months. Figures from McAfee indicate the number of cryptojacking malware variants increased by a staggering 1,189% in the first three months of 2018 alone, rising from around 400,000 malware variants to more than 2.9 million.
Over the same time frame, there has been a fall in the number of ransomware attacks. In Q1, ransomware attacks fell by around 32%, indicating threat actors who previously used ransomware to make money have changed their tactics and are now using cryptocurrency miners.
Ransomware attacks falling by a third is certainly good news, although the threat from ransomware cannot be ignored. Steps must be taken to prevent the installation of the file encrypting code and good backup practices are essential to ensure files can be recovered in the event of an attack. Certain industries face a higher risk of ransomware attacks than others, such as the healthcare industry, where attacks are still rife.
Cryptojacking attacks are more widespread, although the education sector has proven to be a major target. Many mining operations have been discovered in the education sector, although it is unclear whether these mining operations are legitimate, computers are being used by students to mine cryptocurrency, or if educational institutions are being targeted.
One thing is clear. As the value of cryptocurrencies rose, the number of mining attacks increased. That suggests that should prices fall, cybercriminals will switch to other types of attacks, and there could be a resurgence in ransomware attacks.
It could be argued that the installation of cryptocurrency mining malware on a computer is far less of a problem than ransomware or other forms of malware. When the CPU is mining cryptocurrency, the user is likely to find their computer somewhat sluggish. This can result in a drop in productivity. Heavy processing can also cause computers to overheat and hardware damage can result.
Cryptojacking malware is usually installed by a downloader, which can remain on a computer. If the profits from mining cryptocurrency fall, new malware variants could easily be downloaded in its place. Cryptocurrency mining malware can also be bundled with other malware variants that steal sensitive information. Cryptojacking attacks are therefore a major threat.
Protecting against cryptojacking attacks involves the same security controls that are used to block other forms of malware. Cryptojacking malware can be installed by exploiting vulnerabilities so good patch management is essential. Spam and phishing emails are used to install malware downloaders, so an advanced spam filtering solution is a must. Web filters can prevent web-based mining attacks and malware downloads and offer an important extra layer of protection. It is also important not to neglect end users. Security awareness training can help to eradicate risky behaviors.
Additionally, security audits should be conducted, first to scan for the presence of cryptojacking malware, which includes searching for anomalies that could indicate the presence of the malware. Those audits should include servers, end points, POS systems, and all other systems. Any system connected to the network could potentially be used for mining cryptocurrency.