Spam Software

What are the advantages and disadvantages of email sandboxing?

Malicious File Sandbox for Email

by G Hunt | November 5, 2023 | Network Security, Spam Software

Multiple layers of security are required to protect against increasingly sophisticated email attacks. A malicious file sandbox for email should be one of those layers to ensure your business is protected against zero-day and stealthy malware threats.

Email: The Most Common Initial Access Vector Used by Cybercriminals

There are many ways that cybercriminals can attack businesses, but email is the most common initial access vector. Most employees have email accounts which means they can be easily reached, and social engineering techniques are used to trick employees into opening malicious attachments or visiting links in emails. Cybercriminals have become adept at exploiting human weaknesses in defenses.

One of the main aims of email campaigns is to deliver malware to provide persistent access to victims’ networks. Executable files may be attached to emails and hidden using double file extensions to make the files appear to be legitimate documents, PDF files, or spreadsheets. Office files may be attached that have malicious macros which, if allowed to run, trigger the download of a first-stage malware payload. The problem for businesses is these campaigns are becoming much more sophisticated, they often bypass standard email security defenses, and they land in inboxes where they can be opened by employees.

Defending against sophisticated email attacks requires a defense-in-depth approach, which should include a spam filter/secure email gateway, a web filter, multifactor authentication, an endpoint detection and response solution, and security awareness training for employees. To improve protection further and defend against new and stealthy malware threats, it is important to have a malicious file sandbox for email.

What is a Malicious File Sandbox?

A malicious file sandbox is an isolated virtual environment where untrusted, suspicious files can be detonated securely without risking network or data security. The sandbox is used for analyzing emails, documents, application files, and other executable files to determine their true nature. When an email is received, it must first pass through a spam filter which looks for the common signatures of spam and phishing emails, performs reputation checks on the sender, analyzes the message content, and scans email attachments using antivirus software. The spam filter will filter out the majority of spam and phishing emails and all known malware variants using the antivirus software.

The problem is many email attacks are stealthy and have been developed to be undetectable, and cyber actors are skilled at getting their emails past email defenses and into inboxes. One way this is achieved is by using polymorphic malware, which cannot be detected by standard email security solutions and antivirus software. A malicious file sandbox is needed to protect against these novel threats.

When suspicious files are received that pass the front-end checks, they are sent to the sandbox for in-depth analysis of their behavior. The malicious file sandbox is configured to look like a real target environment to ensure that when an email is sent to the sandbox any malware acts as it would in the wild and is tricked into determining that it has landed on the endpoint of its intended target. No harm can be caused in the sandbox as the environment is isolated and not set up locally. If malware is detected, a report is generated of any malicious intent or unexpected actions, and actionable insights are provided to allow the threat to be blocked.

The SpamTitan Malicious File Sandboxing Service

SpamTitan is an award-winning anti-spam and anti-phishing solution from TitanHQ that is used by thousands of businesses and managed service providers to protect against email-based attacks. The solution leverages artificial intelligence and machine learning algorithms to detect novel threats and predict new attacks, reputation checks are conducted using SPF, DKIM, and DMARC, users are protected from malicious links in emails, and the solution has dual antivirus engines that scan for known malware.

SpamTitan also includes a Bitdefender-powered malicious file sandbox for blocking zero-day malware threats. The sandbox analyzes a broad range of targets, including emails, documents, application files, and other executable files, and leverages purpose-built, advanced machine-learning algorithms, aggressive behavior analysis, anti-evasion techniques, and memory snapshot comparison to detect sophisticated threats and delivers advanced threat protection and zero-day exploit detection. The sandbox also extracts, analyzes, and validates URLs within files.

The sandbox is not located on the endpoint so there are no performance implications, and strong machine learning and behavior detection technologies ensure that only files that require further analysis are sent to the Sandbox. If a malicious file is detected, the sandbox informs Bitdefender’s cloud threat intelligence service to ensure the threat is instantly blocked globally and will not need to be set to the sandbox for analysis again. The sandbox allows businesses to identify and block malicious files such as polymorphic malware and other threats that have been developed for use in undetectable attacks.

The SpamTitan malicious file sandbox delivers best-in-class detection, advanced anti-evasion technologies, innovative pre-filtering, and MITRE ATT&CK framework support. If you want the best protection from dangerous malware, you need a malicious file sandbox for email, and with SpamTitan you get that and more at a very affordable price. For more information on the capabilities of SpamTitan and details of pricing, give the TitanHQ team a call. SpamTitan is also available on a free 14-day trial to allow you to test the product in your own environment before making a purchasing decision.

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What are the advantages and disadvantages of email sandboxing?

What is Message Sandboxing?

by G Hunt | October 28, 2023 | Spam Advice, Spam Software

Message sandboxing is a security feature of spam filters, secure email gateways, and other email security solutions where inbound messages are sent to a secure and isolated environment where the messages are subjected to behavioral analysis. File attachments are detonated and analyzed for malicious properties and actions, such as attempted file downloads from the Internet, command-and-control center callbacks, and attempts to write code to the memory.

What is a Sandbox?

In the technology sense, a sandbox is a contained virtual environment that is separate and isolated from other applications, operating systems, data, and internal networks. Sandboxes have several uses. In software development, a sandbox is used for testing new code, where it can be observed for unexpected compatibility issues, allowing software developers to troubleshoot the code without causing any harm to live systems and data.

In cybersecurity, a sandbox is used to open untrusted files, follow potentially malicious links, and analyze suspicious code and malware. If malware was installed and executed on a standard machine, the threat actor would be given remote access, malware may exfiltrate sensitive data, or in the case of ransomware, encrypt files. Since the sandbox is a secure environment, any malicious action has no consequences, and files can be studied in safety.

A sandbox is a virtual environment that is often configured to mimic a genuine endpoint. One of the first actions taken by malware is to explore the environment it is in to check whether it is on a genuine device. If not, it is likely not to run any malicious routines and may self-delete to prevent analysis. By configuring the sandbox to mirror a genuine endpoint, the malware can be tricked into performing its malicious routines, which are detected and logged. The intelligence gathered is fed into the email security solution, and all users of that solution, locally and globally, will be protected from that malware sample in the future.

Why is Message Sandboxing Necessary?

Traditional email security solutions check message headers, perform reputation checks of senders, scan email attachments with antivirus engines, follow embedded hyperlinks, and examine the content of the message for known spam and phishing signatures. For many years, these checks alone have been sufficient and ensure that more than 99% of spam and phishing emails are detected and blocked along with all known malware.

Email attacks have been getting much more sophisticated in recent years and new malware variants are being released at never-before-seen rates. A malware phishing campaign, for instance, will not just use one iteration of malware, but many, with each sample differing sufficiently to defeat signature-based detection mechanisms. Cybercriminals are using automation to spin up masses of samples and AI is being used to develop novel phishing methods.

AI and machine learning capabilities are now required in email security for blocking these zero-day threats, and email message sandboxing is necessary for detecting novel malware threats. Advanced email security solutions leverage AI, machine learning, and email sandboxing and protect against the rapidly evolving threat landscape. Without these features, many malicious messages will be delivered.

How to Set Up Message Sandboxing

The easiest way to get started and set up message sandboxing is to use SpamTitan Email Security. SpamTitan has been developed to be easy to set up and use by businesses of all sizes, from small offices and coffee shops to small and medium-sized businesses and large enterprises. Being cloud-based, there is no software to install, just a small configuration change to your MX record (information on how to do this is provided). The solution can be accessed through a web-based interface, and the solution can be configured in just a few minutes.

Users benefit from spam and phishing detection rates of more than 99.99%, a very low false positive rate and a Bitdefender-powered email sandbox. The email sandbox leverages advanced machine learning algorithms, aggressive behavior analysis, anti-evasion techniques, and memory snapshot comparison to detect zero-day threats.

Without an email sandbox, you are likely to be exposed to many malicious messages. With sandbox email protection, you have much better control of the content that reaches user inboxes.

How to Sandbox Email Attachments

by G Hunt | October 15, 2023 | Phishing & Email Spam, Spam Software

Do you know how to sandbox email attachments? If you have yet to start using a sandbox for email, you will be exposed to advanced malware and phishing threats. The good news is it is quick and easy to improve protection with a sandbox, and it requires no advanced techniques or skills, but before presenting an easy email sandboxing solution, we should explain why email sandboxing is now a vital part of email security

Email Sandboxing Detects Advanced and Sophisticated Threats

A hacker writes the code for a new malware variant or generates the code using an AI tool, and then sends that malware via email. A traditional email security solution will not block that malware, as it has not detected it before and it doesn’t have the malware signature in its definition list. The email would most likely be delivered, and the intended recipient could open it and infect their device with malware. From there, the entire network could be compromised and ransomware could be deployed.

How could a new, previously unseen threat be blocked? The answer is email sandboxing. When a file passes initial checks, such as AV scans, the attachment is sent to an email sandbox where its behavior is analyzed. It doesn’t matter if the malware has not been seen before. If the file performs any malicious actions, they will be detected, the threat will be blocked, and if that threat is encountered again, it will be immediately neutralized.

Email sandboxing is now an essential part of email security due to the sheer number of novel malware variants now being released. That includes brand new malware samples, malware with obfuscated code, polymorphic malware, and known malware samples that differ just enough to avoid signature-based detection mechanisms. Without behavioral analysis in a sandbox, these threats will be delivered.

The Easy Way to Sandbox Email Attachments

Setting up an email sandbox need not be complicated and time-consuming. All you need to do is sign up for an advanced cloud-based email security solution such as SpamTitan Email Security. SpamTitan is a 100% cloud-based email security solution that requires no software downloads or complex configurations. Just point your MX record to the SpamTitan Cloud and use your login credentials to access the web-based interface. You can adjust the settings to suit your needs, and the setup process is quick, easy, and intuitive, and generally takes around 20-30 minutes.

The solution is fed threat intelligence from a global network of more than 500 million endpoints, ensuring it is kept up to date and can block all known and emerging threats. You will be immediately protected from known malware and ransomware threats, phishing emails, spam, BEC attacks, and spear phishing, and you will benefit from email sandboxing, where suspicious emails are sent for deep analysis to identify zero-day phishing and malware threats.

The SpamTitan email sandbox is powered by Bitdefender and has purpose-built, advanced machine learning algorithms, decoys and anti-evasion techniques, anti-exploit, and aggressive behavior analysis. If a file is analyzed in the sandbox and found to be malicious, SpamTitan updates Bitdefender’s Global Protective Network, ensuring that the new threat is blocked globally.

Email sandboxing doesn’t need to be complicated. Just use SpamTitan from TitanHQ. SpamTitan is available on a free trial, with customer support provided throughout the 14-day trial to help you get the most out of the solution. We are sure you will love it for the level of protection provided and how easy it is to use.

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What are the advantages and disadvantages of email sandboxing?

How Does a Sandbox Work?

by G Hunt | October 5, 2023 | Phishing & Email Spam, Spam Software

Sandboxing is a security feature that protects against malicious code. Rather than execute potentially unsafe code in a standard environment, it is sent to the sandbox – an isolated environment where no harm can be caused.

How Does a Sandbox Work?

A sandbox is an important cybersecurity tool for protecting host devices, operating systems, and data from being exposed to potential threats. The sandbox is a highly controlled system that is used to analyze untrusted applications, files, or code. The sandbox is isolated from the network and real data, and there are only essential resources that are authorized for use. It is not possible for a sandboxed file to access other parts of the network, resources, or the file system, only those specifically set up for the sandbox.

Sandboxes can have different environments. One of the most common implementations uses virtualization. A virtual machine (VM) is set up specifically to examine suspicious programs and code. Some sandboxes include emulation of operating systems to mimic a standard endpoint. Some malware samples perform checks of their environment before executing malicious routines to make sure they are not in a VM. If a VM is detected, the malware will not execute malicious routes and may self-delete to prevent analysis. By emulating a standard endpoint, these checks can be passed to allow analysis. Some sandboxes have full system emulation, which includes the host machine’s physical hardware as well as its operating system and software. These sandboxes provide deeper visibility into the behavior and impact of a program.

In email security, files, attachments, URLs, and programs are sent to the sandbox to check whether they are benign or malicious. The analyses can take between a few seconds to a few minutes, and if any malicious activity is detected, the file will be either quarantined and made available for further study or it will be deleted. Any other instances of that file will be removed from the email system, and any future encounters will see the file, attachment, URL, or program deleted.

SpamTitan Email Sandboxing

SpamTitan Email Security includes a Bitdefender-powered email sandbox to ensure users are protected against zero-day threats. All emails are subjected to a barrage of checks and tests, including scans using two different antivirus engines. SpamTitan features strong machine learning, static analysis, and behavior detection technologies to ensure that only files that require deep analysis get sent to the sandbox. This is important, as deeper analysis may take several minutes, so verified clean and safe messages will not be unduly delayed.

Files that are sent to the sandbox for deep analysis are executed and monitored for signs of malicious activity, with self-protection mechanisms in place to ensure every evasion attempt by a piece of malware is properly marked. The sandbox has purpose-built, advanced machine learning algorithms, decoys and anti-evasion techniques, anti-exploit, and aggressive behavior analysis. All results are checked across known threats in an extensive array of online repositories. If a malicious file is detected, the sandbox updates the Bitdefender’s cloud threat intelligence service – the Bitdefender Global Protective Network – and the sandbox will never have to analyze that threat again as it will be blocked globally.

If you want to improve protection against zero-day threats, give the TitanHQ team a call to find out more about SpamTitan. SpamTitan is available on a free trial to allow you to test it out in your own environment before making a purchase decision.

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What are the advantages and disadvantages of email sandboxing?

Email Sandboxing is the Key to Blocking More Malware Threats

by G Hunt | September 27, 2023 | Phishing & Email Spam, Spam Software

https://www.spamtitan.com/blog/email-sandboxing-key-blocking-malware-threats/Email security solutions with email sandboxing block more malware threats than traditional spam filters, even novel malware variants that have yet to be identified as malicious. Without this important feature, emails with malicious attachments will likely be delivered to inboxes where they can be opened by employees. All it takes is for one employee to open a malicious file for malware to be installed that gives a threat actor the foothold they need for a comprehensive attack on the network.

What is an Email Sandbox?

In cybersecurity terms, a sandbox is an isolated, virtual machine where potentially unsafe code can be executed in safety, files can be subjected to deep analysis, and URLs can be visited without risk. In the sandbox, the behavior of files, code, and URLs is inspected, and since the sandbox is not networked and there is no access to real data or applications, there is no risk of causing any damage. Email sandboxing is used to identify malicious code and URLs in emails. The email sandbox mirrors standard endpoints to trick malicious actors into thinking that they have reached their intended target. Emails may pass front-end tests that look at the reputation of the sender, email headers, the content of the messages, and subject attachments to signature-based anti-virus tests, but there is no guarantee that the emails are safe without sandbox-based behavioral analysis.

Why is Email Sandboxing Important?

Cyber threat actors have been developing techniques for bypassing standard email security solutions such as embedding malicious URLs in PDF attachments, hiding malicious content in compressed files, using multiple redirects on hyperlinks, and including links to legitimate cloud-based platforms such as SharePoint for distributing malware. Traditional email security solutions can filter out spam and phishing emails, but they often fail to block more sophisticated threats, especially zero-day malware threats. Email sandboxing provides an extra layer of protection against sophisticated threats such as spear-phishing emails, advanced persistent threats (APTs), and novel malware variants.

A few years ago, new malware variants were released at a fairly slow pace; however, threat actors are now using automation and artificial intelligence to generate new malware variants at an alarming rate. Malware samples are used that deviate sufficiently from a known threat to be able to bypass signature-based detection mechanisms, ensuring they reach their intended targets. Rather than just using one version of malware in their email campaigns, dozens of versions are created on a daily basis. While security awareness training will help employees identify and avoid suspicious emails, threat actors have become adept at social engineering and often hoodwink employees.

The SpamTitan Email Sandbox

The SpamTitan email sandbox is a powerful next-generation security feature with award-winning machine-learning and behavioral analysis technologies. Powered by Bitdefender, the SpamTitan sandbox for email allows files to be safely detonated where they can do no harm. Email attachments that pass the barrage of checks performed by SpamTitan are sent to the sandbox for deep analysis. The sandbox is a virtual environment that is configured to appear to be a typical endpoint and incorporates purpose-built, advanced machine learning algorithms, decoys and anti-evasion techniques, anti-exploit, and aggressive behavior analysis. Files are also subjected to checks across an extensive array of online repositories, with the sandbox checks taking just a few minutes. That ensures that genuine emails are not unduly delayed. If malicious properties are detected in the sandbox, the threat intelligence is passed to Bitdefender’s Global Protective Network (cloud threat intelligence service). If the threat is encountered again, it will be detected and blocked without having to be analyzed again in the sandbox.

The SpamTitan sandbox is used for a wide range of attachments, including office documents to check for malicious URLs, macros, and scripts, and all executable and application files. The sandbox allows SpamTitan to detect polymorphic malware and other threats that have been designed for use in undetectable targeted attacks. If a malicious file is detected, the email is not sent to a spam folder where it could be opened by an end user, it is quarantined in a directory on the local email server which only an administrator can access. Administrators may wish to conduct further investigations to gain insights into how their organization is being targeted.

Threat actors are conducting increasingly sophisticated attacks, so email security solutions need to be deployed that are capable of detecting these advanced threats. With zero-day threats on the rise, now is the ideal time to improve your email defenses with SpamTitan. Why not sign up for a free trial of SpamTitan today to put the solution to the test to see the difference the advanced threat detection capabilities make to your security posture? Product demonstrations can also be requested by contacting TitanHQ, and our friendly sales team will be more than happy to discuss SpamTitan with you and the best deployment options to meet the needs of your business.

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What are the advantages and disadvantages of email sandboxing?

Commonly Asked Questions About Email Sandboxing

by G Hunt | September 15, 2023 | Phishing & Email Spam, Spam Software

Commonly asked questions about email sandboxing so you know what to expect from an email security solution with a sandbox, and why this advanced feature is vital for email security.

What is an Email Sandbox?

One of the commonly asked questions about email sandboxing is what is an email sandbox? Like the children’s equivalent, it is a safe space for building, destroying, and experimenting. In cybersecurity terms, it is an isolated environment where harm cannot be caused to anything outside of that environment. An email sandbox is an isolated virtual machine that is used for performing risky actions, such as opening unknown attachments and analyzing files and URLs in depth, rather than using a real machine where there is a risk of harm being caused such as file encryption by ransomware, theft of sensitive information, or wiping of data.

Why is an Email Sandbox Important?

Email is the most common vector used in cyberattacks. Through emails, cyber threat actors can gain initial access to a protected network from where they can steal sensitive data or move laterally for a more comprehensive attack. One of the most common ways of gaining remote access is through malware. Once malware is downloaded, an attacker can remotely perform commands and gain full control of an infected device. While businesses use antivirus software to detect and remove malware, these solutions are signature-based. In order to detect malware, the signature of the malware must be in the definition list used by the anti-virus solution, which means the malware must have previously been encountered. Novel malware variants that have not yet been determined to be malicious will not be identified as such and will therefore be delivered to inboxes where they can be executed by employees. An email sandbox is used to safely detonate suspicious files and inspect their behaviors. The behavioral analysis allows previously unknown malware samples can be identified and blocked. This is important due to the volume of new malware samples that are now being released.

How Does an Email Sandbox Protect Against Malware?

Email security solutions with sandboxing perform the same front-end checks as traditional email security solutions and will identify and block many malicious messages. If the initial checks are passed, and the messages are determined to potentially pose a risk, they will be sent to the sandbox for behavioral analysis. Once inside the safety of the sandbox, the attachments will be opened and subjected to various tests. The sandbox is configured to appear to be a normal endpoint, so any malware will be tricked into running malicious commands as it would if it had reached its intended target. The actions of the file are assessed, and if they are determined to be malicious they will be sent to a quarantine folder. By performing these checks, new malware variants can be identified and blocked before any harm is caused.

Will Sandboxing Delay Message Delivery?

Performing standard checks of messages is a quick process, often causing imperceptible delays in mail delivery. Performing in-depth analysis takes longer, so there will be a delay in message delivery. Many emails will not need to be sent to the sandbox and will be delivered immediately, but if sandboxing is required, there will be a delay while the behaviors of the email and attachments are analyzed. Some malware has built-in anti-analysis capabilities and will delay any malicious processes to combat sandboxing. Time is therefore required to ensure full analysis. With SpamTitan, the delay will be no longer than 20 minutes.

How Can I Avoid Message Delivery Delays?

SpamTitan incorporates artificial intelligence and machine learning capabilities which minimize the number of emails that are sent to the sandbox, and SpamTitan will check every 15 seconds to ensure that emails are delivered as soon as the sandbox analysis is complete. SpamTitan’s sandbox is part of Bitdefender’s Global Protective Network, which ensures rapid checks of suspicious messages. To avoid delays, certain email addresses and domains can be added to a whitelist, which means they will not be sent to the sandbox for analysis, ensuring rapid delivery.

What are the Benefits of Email Sandboxing?

The sandbox provides an important extra layer of protection against malware threats and malicious links. It will detect advanced attacks early and prevent breaches, reduce incident response costs and efforts, reduce the threat-hunting burden, and increase the detection rate of elusive threats in the pre-execution stage, including APTs, targeted attacks, evasion techniques, obfuscated malware, custom malware, ransomware.

How Does the SpamTitan Sandbox Work?

SpamTitan will subject all inbound emails to a battery of front-end tests, and if these are passed but the email is still suspicious, the message and attachment will be sent to the sandbox and the user will be informed that the message is in the sandbox for review. The email and attachments will then be opened in an isolated cloud platform or a secure customer virtual environment. If malware is detected, the email is blocked and assigned ATP.Sandbox and will be listed under “Viruses” in the relevant quarantine report and the intelligence gathered will be used to protect all users from that threat in the future. After twenty minutes of interrogation, if no malicious actions are identified, the file is marked clean and the email is passed onto the recipient.

How Can I Find Out More About Email Security and Sandboxing?

If you have unacceptable numbers of spam and malicious messages being delivered to inboxes, are receiving large numbers of queries about suspicious emails from your employees, or if you have experienced a malware infection via email recently, you should speak with TitanHQ about improving email security with SpamTitan.

SpamTitan has artificial intelligence and machine learning capabilities, a next-gen email sandbox, and a 99.99% detection rate with a very low false positive rate. Further, SpamTitan is very competitively priced, easy to use, and requires little maintenance. The solution is also available on a 100% free trial, with full product support provided for the duration of the trial.

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What are the advantages and disadvantages of email sandboxing?

Email Sandboxing and Message Delivery Delays

by G Hunt | September 10, 2023 | Phishing & Email Spam, Spam Software

Email sandboxing is important for security, as it will block threats that traditional email filters fail to detect. While sandboxing is now considered to be an essential element of email security, one disadvantage is that it will delay the delivery of emails. In this post, we will explain why that is and how email delivery delays can be minimized or avoided altogether.

What Does Queued for Sandbox Mean?

If you use SpamTitan or another email security solution with email sandboxing, you may see the message “email queued for sandbox” from time to time. The queued for sandbox meaning is the message has been determined to warrant further inspection and it has been sent to the sandbox for deeper analysis. This is most likely because the email includes an attachment that is determined to be risky, even though it has passed the initial antivirus scans.

While email sandboxing is important for security, there is a downside, and that is processing messages in a sandbox and conducting behavioral inspection takes a little time. That means there will be a delay in delivering messages that have been sandboxed while behavioral checks are performed. Messages will only be delivered once all sandbox checks have been passed. If a large volume of suspicious emails are received at the same time, messages will be queued for analysis, hence the queued for sandbox message being displayed.

Sandbox Delays for Inbound Emails

The processing of messages in a sandbox can take a little time. Cyber threat actors do not want their malware and malicious code analyzed in a sandbox, as it will allow their malware to be identified. Further, once a malware sample has been identified, details will be shared with all other users of that security solution, which means no user will have that malicious file delivered to their inbox. SpamTitan’s email sandbox is powered by Bitdefender, so all members of the Bitdefender network who subscribe to its feeds will also be protected.

Many malware samples now have anti-sandbox technologies to prevent this. When the malware is dropped on a device it will analyze the environment it is in before launching any malicious actions. If it senses it is in a sandbox it will terminate and may attempt to self-delete to prevent analysis. One technique often seen is delaying any malicious processes for a set time after the payload is delivered. Many sandboxes will only analyze files for a short period, and the delay may be sufficient to trick the sandbox into releasing the file. It is therefore necessary to give the sandbox sufficient time for a full analysis.

Are Your Sandbox Delays Too Long?

Conducting analyses of emails in a sandbox is resource-intensive and can take several minutes and there may be delays to email delivery that are too long for some businesses. There are ways to avoid this, which we will discuss next, but it may be due to the email security solution you are using. The SpamTitan email sandbox is part of Bitdefender’s Global Protective Network, which was chosen not only for cutting-edge threat detection but also the speed of analysis. If you are experiencing long delays receiving emails, you should take advantage of the free trial of SpamTitan to see the difference the solution makes to the speed of email delivery for emails that require sandbox analysis.

How the SpamTitan Sandbox for Email Minimizes Delays

SpamTitan does not send all messages to the sandbox to avoid unnecessary email delays. If a message is suspicious and the decision is taken to send it to the sandbox for analysis, SpamTitan will check to see if the analysis has been completed every 15 seconds to ensure it is released in the shortest possible time frame. Employees will be aware that they have received a message that has been sent to the sandbox as the message delivery status is displayed in their history. Provided all sandbox checks are passed, the email will be delivered. This process will take no longer than 20 minutes. If a file is determined to be legitimate, details are retained by SpamTitan so if the attachment or message is encountered again, it will not be subjected to further analysis in the sandbox.

How to Avoid Sandbox Delays to Message Delivery

There are ways to avoid messages being placed in the queue for sandbox inspection. While it is not always advisable for security reasons, it is possible to whitelist specific email addresses and domains. This will ensure that emails from important clients that need a rapid response will be delivered without delay and will not be sent to the sandbox. The problem with this approach is that if a whitelisted email address or a domain is compromised and used to send malicious messages, they will be delivered.

What Happens if a Message is Misclassified as Malicious?

False positives do occur with spam and phishing emails as email filtering is not an exact science. While this is rare with SpamTitan, any misclassified emails will not be deleted as they will be sent to a quarantine folder. That folder can be configured to be accessible only by an administrator. The administrator can then check the validity of the quarantined messages and release any false positives. Since SpamTitan has artificial intelligence and machine learning capabilities, it will learn from any false positives, thus reducing the false positive rate in the future.

Talk with TitanHQ About Improving Email Security

If you are not currently using an email security solution with sandboxing or if your current email security solution is not AI-driven, contact TitanHQ to find out more about how SpamTitan can improve protection against sophisticated email threats. SpamTitan is available on a free trial to allow you to put the product to the test before deciding on a purchase, and product demonstrations can be arranged on request. If you proceed with a purchase, you will also benefit from TitanHQ’s industry-leading customer service. If you ever have a problem or a query, help is rapidly at hand.

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What are the advantages and disadvantages of email sandboxing?

How Does an Email Sandbox Block Malware?

by G Hunt | September 5, 2023 | Phishing & Email Spam, Spam Software

You may have heard that email sandboxing is an important security feature, but how does an email sandbox block malware and why is this security feature necessary? In this post, we explain what an email sandbox is, why it is now an important element of email security, and how email sandboxes work.

An email sandbox is a secure and isolated environment where emails and their attachments are subjected to behavioral analysis. In the sandbox, malicious files and code can be safely detonated where no harm can be caused. Say an email is received that contains malicious code that is used to drop and execute ransomware on a device. Executing that code on a standard machine would initiate the process that ends with file encryption. Execute that code in an email sandbox and the malicious behavior would be detected and no harm would be caused. The email and code will then be eradicated from the email system, and the threat intelligence gathered will be sent to a global network to ensure that if the email or code is encountered again it will be immediately blocked.

Many Email Security Solutions Fail to Detect the Most Serious Threats

Traditional email security solutions perform many tests on emails to determine the likelihood of them being spam or malicious. DMARC and SPF are used to check the legitimacy of the sender, checks are performed on the reputation of an IP address/domain, and the subject, title, and body of a message are analyzed for signs of phishing and spam. Email attachments are also subject to anti-virus checks, which will identify and block all known malware variants. The result? Filtered emails contain no known spam, no known malicious hyperlinks, and no known malware.

The problem with traditional email security solutions is they are unable to detect unknown spam, phishing attempts, and malware. If a threat actor uses a previously unseen phishing email, which includes either a link to a fresh URL or a site with a good reputation, that email will most likely be delivered. If a new malware variant is sent via email, its signature will not be present in any virus or malware definition list and will similarly be delivered to an end user’s inbox. Threat intelligence is shared with email security solutions and they are constantly updated as new threats are found but there is a lag, during which time these threats will be delivered to inboxes. That is why an email sandbox is needed.

How an Email Sandbox Works

Antivirus scans will block the majority of malware, but not novel (zero-day) malware threats. When an email security solution has email sandboxing, the same checks are initially performed, and if they are passed, emails are sent to the sandbox for further analysis. The email sandbox is an isolated environment on a virtual machine that is configured to look like a genuine endpoint. As far as the threat actor is concerned, their email will have reached their intended target and the file should execute as it would on a standard machine.

In the sandbox, emails and attachments are opened and links are followed and behavior is analyzed in detail to determine if any malicious or suspicious actions occur such as a command-and-control center callbacks, attempted file encryption, or scans for running processes. If a Word document is opened that contains no hyperlinks, no macros, and no malicious scripts, and nothing suspicious occurs in the time it is present in the sandbox, the file will be determined as benign and the email will then be delivered to the intended recipient. If any malicious actions are detected, the file will be sent to a local quarantine directory where it can only be accessed by the administrator. The intelligence gathered will be sent to the global network and all users will be protected almost instantly. All copies of that message and the attachment will also be removed from the entire mail system.

Email Sandboxing and AI-Driven Threat Detection are Now Vital

Email sandboxing is now vital for email security as new malware variants are being released at an incredible rate and signature-based detection methods cannot detect new malware threats. In addition to email sandboxing, artificial intelligence must be leveraged to look for novel phishing messages, as phishing attempts are also increasing in sophistication. These AI-based checks look for messages that deviate from the typical messages received by a company, and greatly reduce the volume of spam and phishing emails that reach inboxes.

The threat landscape is constantly changing so advanced email defenses are now essential. If you are still using an email security solution without email sandboxing and AI-driven threat detection, your company is at risk. Speak to the team at TitanHQ to find out more about SpamTitan and how the award-winning email security solution can enhance your company’s security posture.

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Email Sandboxing, Pattern Filtering, and Other Much-Loved SpamTitan Features

by G Hunt | September 1, 2023 | Network Security, Spam Software

SpamTitan is a next-generation anti-spam, anti-phishing, and anti-malware solution for businesses that incorporates AI-based threat detection, email sandboxing, and many other advanced email security features. Some of the most important and best-loved features of SpamTitan are explained below:

Email Sandboxing in SpamTitan

Email sandboxing is a vital element of email security, yet many email security solutions lack this feature. An email sandbox is a secure, virtual machine where links can be followed and attachments opened where they cannot cause any harm. A malicious link that leads to an automatic malware download can be followed in safety, and even the nastiest piece of malware can be executed without risk as the sandbox is isolated, not connected to any network, and contains no real data.

The sandbox is configured to appear to be a genuine endpoint in order to trick malicious actors into thinking malware has reached its intended target. When a file is opened in the sandbox it is subject to deep analysis, and any malicious or suspicious actions are detected. Emails are subject to a battery of front-end checks, including scans using two anti-virus engines, and any emails that pass these checks but are determined to potentially pose a risk are sent to the sandbox for behavioral analysis. That includes emails along with any attached documents, spreadsheets, and executable files.

Sandboxing for email is important because of the speed at which novel malware samples are used in attacks. Rather than just use one version of a keylogger in a campaign, a threat actor will use dozens of versions of that keylogger, each differing slightly to evade signature-based detection mechanisms. AI and automation are used by threat actors to churn out new malware variants rapidly, and signature-based detection alone is no longer good enough. With sandboxing, email protection is greatly improved against these zero-day threats which would otherwise be delivered to end users’ inboxes.

Pattern Filtering in SpamTitan

One of the most loved features of SpamTitan is Pattern Filtering. It saves IT security teams a considerable amount of their precious time by ensuring spammy and phishy emails are not delivered. The Pattern Filtering feature allows administrators to use their own terminology to block inbound emails. Simply set a word or phrase through Pattern Filtering, and SpamTitan will search the subject line and message body and can be configured to generate a warning or quarantine the email if the word or phrase is found.

An example of where this can be useful is combating the Nigerian scam/419 fraud, a type of advanced fee fraud. The 419 comes from Section 419 of the Nigerian Criminal Code which prohibits this kind of scam. While the scam is common with Nigerian cybercriminals, cybercriminal groups in many different countries also conduct this type of scam. While the themes of the emails vary, they all have the same aim. An example would be a prominent person who has substantial funds in their account has been unable to transfer the funds out of the country due to unfair restrictions. They offer to transfer these funds to the user’s account to get the money out of the country in exchange for a percentage of those funds as payment, which may be as high as 20%, which is a life-changing amount of money. The catch? In order to proceed, charges need to be covered and they must be paid in advance. The Pattern Filtering option can be used to block these emails by incorporating phrases commonly used in these emails.

Geo-Filtering in SpamTitan

SpamTitan also incorporates geo-filtering, which allows users to block emails from specific countries. If you never do business with countries in Africa, for example, you can simply block all emails coming from African IP addresses with a few clicks of a mouse, rather than manually blocking IP addresses from which you get a lot of spam emails. This feature saves IT teams a considerable amount of time. One user who has benefited greatly from this feature is Benjamin Jeffrey, IT manager at M&M Golf Cars. His company was receiving many requests from countries that the company does not do business with and was getting flooded with spam emails from a specific IP subnet in a country. He configured the geo-filtering and instantly blocked all those messages. When he checked 6 months after configuring that feature, around 12,000 emails had been blocked. Geo-blocking is also useful for blocking malware quickly. Malware distribution campaigns are often launched from a handful of countries, and geo-filtering can be used to block those messages with ease.

AI and Machine Learning in SpamTitan

SpamTitan has AI and machine learning capabilities to improve the detection of spam and phishing emails. These technologies learn about the emails that are typically received by a company and create a baseline against which new emails can be measured. When emails deviate from the norms, they are flagged as risky and are subjected to more stringent security checks or are quarantined for manual inspection. These technologies greatly improve spam and phishing email catch rates and allow SpamTitan to improve day-by-day. These technologies are a vital defense against zero-day phishing threats – new threats that have not been encountered on the 500+ million endpoints from which threat intelligence is gathered.

Find out More About SpamTitan

These are just some of the most loved and most beneficial features of SpamTitan. In addition to having a high catch-rate and low false positive rate, SpamTitan is one of the most affordable email security solutions on the market, it’s quick and easy to set up, and requires little maintenance. The features, price, and ease of use are why it is loved by thousands of small- and medium-sized businesses, enterprises, and managed service providers. To find out more, give the TitanHQ team a call. The product is available on a 100% free trial if you want to put it to the test, and product demonstrations can be arranged on request.

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