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     SafeBridge® AI: Revolutionizing Zero-Trust Security with Large Language Models Visibility

    January 27, 2025

    Target: IT (Elementary)

    Tags: Isolation, Safe Workspace®, Zero-day, Safe Browser, Protection By Containment™, SafeBridge®, NoCloud®, Prevention

    In an era where cyber threats grow increasingly sophisticated, traditional security measures are often inadequate to handle evasive, file-based attacks. SafeBridge® AI, part of the BUFFERZONE® Safe Workspace® suite, steps up to the challenge by combining advanced Content Disarm and Reconstruction (CDR) technology with the power of Large Language Models (LLMs) running directly on the endpoint. This innovation not only provides unparalleled protection but also enhances visibility into potential attack vectors embedded in untrusted files.

    What Is CDR and Why Does It Matter?

    Content Disarm and Reconstruction (CDR) is a proactive approach to file security. Unlike traditional detection-based systems that rely on identifying known threats, CDR works by analyzing, sanitizing, and reconstructing files to ensure that only safe, clean content reaches the end user.

    Here’s how CDR works:

    1. Analyze: The file is inspected for potential malicious elements such as macros, scripts, and embedded links.
    2. Disarm: Any potentially harmful content is removed or neutralized. In the following figure, we can observe the different active components and embedded objects that may obscure evasive code or actively damage the user.
    3. Reconstruct: The file is rebuilt in its original format but stripped of all risky elements.

    This makes CDR a critical component in mitigating zero-day attacks, ransomware, and file-based exploits that bypass signature-based detection and evade the trust-based detection approach.

    How CDR Stops the Next Evasive Threat

    Modern attackers use sophisticated techniques to evade traditional detection mechanisms. Fileless malware, steganographic attacks, and polymorphic payloads are designed to slip through defenses unnoticed. CDR is based on the prevention approach, not the trust-based detection approach. CDR sanitizes all files regardless of whether they are flagged malicious or suspicious. By un-trusting files, we make sure all files are neutralized and secure before damage occurs. While this approach was inspired by the high-security needs of critical networks, it is relevant for enterprises and Small and Medium Business (SMB) due to its high level of security and simplicity.

    Introducing SafeBridge® AI: The Next Level of Zero-Trust CDR

    SafeBridge® AI takes CDR to new heights by incorporating an LLM-based analysis engine on the endpoint. This innovative solution enhances file protection by not only disarming untrusted files but also providing users with a detailed explanation of the potential attack vectors present in the file. It uses NoCloud® technology to run LLM locally without sending sensitive data to the cloud and protect the user’s privacy.

    Key Features of SafeBridge® AI:

    1. Real-time threat visibility: Using LLM, SafeBridge® AI offers contextual insights into the nature of detected threats, helping security teams understand and mitigate risks more effectively.
    2. Endpoint integration: The solution runs entirely on the, including running LLM locally, ensuring compliance with data privacy regulations by eliminating the need to transfer files to external servers for analysis.
    3. Zero-trust foundation: SafeBridge® AI seamlessly integrates with the BUFFERZONE® Safe Workspace® suite, ensuring every untrusted file, no matter the source, is processed with zero-trust principles.

    Connecting the BUFFERZONE® Safe Workspace® Suite

    BUFFERZONE® Safe Workspace® is a comprehensive solution suite designed to deliver robust endpoint security using Protection By Containment™ technology. This technology isolates external threats originating from web browsing, removable media (USB/ CD/ DVD), and email links and attachments. To safely transfer untrusted files out of the isolated environment, SafeBridge® is employed to sanitize files through advanced security mechanisms, which can be performed automatically or manually.

    Why Data Privacy and Security Matter More Than Ever

    The rise of remote work and cloud collaboration has increased the volume of file-based interactions, making file security a top priority. At the same time, privacy concerns are at an all-time high. Users demand solutions that protect their data without exposing it to third-party servers or violating compliance frameworks.

    SafeBridge® AI meets these needs by:

    • Keeping all file analysis and threat detection on-device, ensuring that sensitive data never leaves the user’s control.
    • Supporting compliance with regulations like GDPR, CCPA, and industry-specific standards.

    How SafeBridge® AI’s LLM Enhances Threat Visibility

    Threat visibility is a critical aspect of modern security. Traditional CDR tools often lack the ability to explain why a file was sanitized or what risks were mitigated. SafeBridge® AI changes that by leveraging LLM to:

    • Analyze and describe attack vectors: Users and security teams gain insights into file vulnerabilities, such as embedded macros, executable payloads, or phishing links.
    • Educate users: Providing easy-to-understand explanations helps users become more aware of the tactic’s attackers use and how to avoid risky behaviors.

    Conclusion

    SafeBridge® AI is more than just a file protection tool—it is a game-changer in zero-trust security. By combining state-of-the-art CDR with LLM-powered visibility, it protects users from the most advanced file-based threats while ensuring data privacy and offering unprecedented threat visibility.

    Integrated into the BUFFERZONE® Safe Workspace® suite, SafeBridge® AI delivers a cohesive, robust solution that keeps users safe, productive, and informed. With SafeBridge® AI, the future of endpoint security is here—and it is smarter, safer, and more transparent than ever before.

     

     

    Securing Emails from Image-based Phishing Attacks

    November 25, 2024

    Target: IT (Elementary)

    Tags: Isolation, Safe Workspace®, Zero-day, Safe Browser, Protection By Containment™, SafeBridge®,NoCloud®, Prevention, Email Security

    In the evolving landscape of cyber threats, attackers constantly adapt to evade detection. One of the latest tactics involves using SVG (Scalable Vector Graphics) files as a vector for phishing attacks. These lightweight, vector-based images can include embedded JavaScript or hyperlinks that redirect victims to malicious sites, bypassing traditional email security filters. A recent report by BleepingComputer highlights the growing prevalence of such attacks.

    This blog explores how BUFFERZONE® SafeBridge® leverages Content Disarm and Reconstruction (CDR) technology to neutralize these threats, providing an unparalleled layer of security for organizations and keeping the IT safe.

    The Threat: How SVG Files Evade Detection

    Many systems inherently trust SVG files due to their standard web design and graphics use. Unfortunately, cybercriminals exploit this trust, embedding malicious scripts or links within SVG attachments. Common attack scenarios include:

    • Embedding clickable links that lead to phishing websites.
    • Using encoded JavaScript to redirect victims to fake login pages.
    • Evading antivirus solutions by leveraging the innocuous appearance of SVG files.

    Traditional defenses like antivirus software and email filters struggle to detect these threats because the SVG structure appears legitimate, making them an ideal phishing tool.

    The attacks occur when the victim receives a phishing email with an attached SVG file, often disguised with an innocent name like Invoice.SVG or Document.svg. The email might contain enticing or urgent language, prompting the user to open the attachment.

    When the victim opens the SVG file, it may appear harmless. SVG files are standard web graphic files trusted by many email systems and users. However, the SVG file may contain malicious embedded code in the form of:

    • JavaScript: Encoded within the SVG file, capable of executing redirections or other harmful actions.
    • Hyperlinks: Clickable links embedded directly into the SVG file, designed to look legitimate.
    • For more detailed information, we recommend reading our previous blog posts:
      • The Beginners Guide – Preventing the Invisible Malware How Steganography Works (Part-1) [Link]
      • The Beginners Guide – Preventing the Invisible Malware What Is Steganalysis and How CDR can improve. Our Security (Part-2) [Link]

    Make IT Simple with Safe Workspace®

    BUFFERZONE® Safe Workspace® is a comprehensive security suite of solutions powered by two advanced technologies: Protection By Containment™ and NoCloud® AI security.  Protection By Containment™ isolates external threats, while NoCloud® addresses risks that extend beyond containment. The suite includes Safe Mail, a Microsoft Outlook plugin that leverages SafeBridge® to perform Content Disarm and Reconstruction (CDR) on all incoming email.  Links and attachments are opened within a secure virtual containment environment, ensuring threats are neutralized in the virtual container. For web browsing threats, BUFFERZONE® Safe Browser operates within the containment environment, preventing potential attacks from escaping into the trusted user space.

    BUFFERZONE® SafeBridge® leverages advanced on-host Content Disarm and Reconstruction (CDR) technology to neutralize phishing threats before they reach end-users. This proactive solution eliminates malicious content while ensuring business continuity remains unaffected.

    Organizations can dramatically reduce risks by adopting a zero-trust prevention strategy that combines containment with SafeBridge® CDR, providing users with a safer environment.

    Unlike traditional detection-based methods that rely on signature matching or behavioral analysis, CDR takes a prevention-first approach. It proactively removes malicious elements from files, making it highly effective against novel or polymorphic threats designed to bypass conventional defenses.

    BUFFERZONE® SafeBridge® is not about detection—it is about proper prevention. Through CDR and containment, phishing emails and their attachments are effectively neutralized.  For suspicious links, BUFFERZONE® leverages NoCloud® anti-phishing technology, powered by the Neural Processing Unit (NPU) to accelerate AI-driven detection directly on the host – ensuring sensitive data remains secure without relying on the cloud.

    Enhancing Endpoint Security: A New Direction with Application Containment

    November 14, 2024

     Target: IT (Elementary)

    Tags: Isolation, Safe Workspace®, Zero-day, Safe Browser, Protection By Containment™, SafeBridge®, NoCloud®, Prevention

    In today’s world, ransomware attacks are a significant concern for businesses globally. Google’s “Ransomware Protection and Containment Strategies” report provides valuable insights
    into the most effective methods for strengthening network defenses. As ransomware evolves and becomes more sophisticated, traditional security measures often fall short.
    The report outlines various containment strategies organizations can implement to minimize damage and respond quickly to attacks. In this summary, we will highlight the key insights
    from the report, address the challenges it covers, and suggest a new approach utilizing the BUFFERZONE® Safe Workspace® solution suite. The suite is based on two technologies:
    advanced Protection by Containment™ technology and NoCloud® AI technology to prevent attacks beyond the container. Together, Safe Workspace® enhances endpoint security by
    isolating potential threats at the application level and using advanced AI on the endpoint to solve security issues beyond external threat containment.

    Understanding the Problem: Ransomware’s Rapid Evolution

    Ransomware attacks are not only increasing in number but are also evolving in complexity. Attackers use more innovative methods to infiltrate networks, spread laterally, and encrypt
    critical data before detection. Google’s report identifies several effective containment strategies that organizations can use, focusing on:

    1. Limiting Exposure and Reducing Attack Surface: Minimizing the scope of ransomware’s reach is essential. This includes restricting access to critical resources and reducing
      user privileges to prevent ransomware from accessing sensitive areas.
    2. Network Segmentation: Dividing the network into segments can confine ransomware to a smaller network section, minimizing impact and allowing IT teams to manage
      incidents without significant disruptions.
    3. Continuous Monitoring and Incident Response Plans: A robust monitoring system and pre-prepared incident response strategy are critical to detecting and addressing
      ransomware in real time, reducing the chance of widespread damage.
    4. Automated Backup Systems: To mitigate the damage caused by data encryption, having an automated backup system enables faster recovery without succumbing to ransom
      demands.

    While effective in providing a foundational layer of security, these strategies still face limitations. In many cases, ransomware can evade detection or bypass traditional security controls
    by exploiting application vulnerabilities, file-sharing mechanisms, and human errors. This gap is where the Safe Workspace® Protection by Containment™ model takes endpoint
    security to the next level.

    The Prevention Based Approach: Application Containment

    While traditional containment strategies focus on limiting ransomware access post-infiltration, the Safe Workspace® zero-trust prevention approach isolates external threats
    from the start
    . Safe Workspace® is based on an application containment solution that proactively contains potential threats before they enter the endpoint and network, minimizing the
    chance of infection and ensuring threats are neutralized in a secure, isolated environment.

    How BUFFERZONE® containment technology enhances endpoint security:

    1. Isolation of External Threats Based on Air-gapped Networks: BUFFERZONE® draws from air-gapped network concept, where the air-gapped network concept, where
      users typically rely on separate computers for external and internal communications. Users typically rely on separate computers for external and internal communications.
      While this approach ensures security, it comes with high costs and poor user experience. BUFFERZONE® addresses this with t’s Protection By Containment technology™, which
      creates a virtual container for untrusted external activities, including web browsing, file download, removable media, email links, and attachments. This approach keeps untrusted
      activities fully isolated from the trusted user environment, enhancing security without sacrificing convenience.
    2. Protection Against Diverse Attack Vectors: BUFFERZONE® Safe Workspace® safeguards against various threats, including malicious email attachments, phishing links, and
      infected USB drives. By isolating these potential risks, BUFFERZONE® ensures that malware cannot compromise the organization’s trusted environment, containing all external
      threats within its Safe Workspace® virtual container.
    3. Enhanced Browsing and Download Security: BUFFERZONE® containment extends to browsing exploits, where risky downloads and web-based malware are kept in a separate virtual environment, stopping them from accessing essential data or other networked systems.
    4. Streamlined Incident Response and Cleanup: Since BUFFERZONE’s containment model isolates and contains potential threats at the application level, cleanup and remediation become straightforward. When an incident is contained within a virtual environment, it’s easier to analyze, address, and remove without disrupting network operations. In one click,
      the entire virtual environment is destroyed and re-created. Furthermore, third-party detection can actively scan BUFFERZONE® virtual container.
    5. Zero-trust file security: The SafeBridge® zero-trust file security acts as an advanced file handler, performing on-host Content Disarm and Reconstruction (CDR) to thoroughly sanitize potential attack vectors within files and create a newly reconstructed, secure version.

    The Takeaway: Protection by Containment as the Future of Endpoint Security

    The containment strategies in Google’s report address the significant risk posed by ransomware, emphasizing the importance of limiting the ransomware’s impact post-infiltration.
    However, BUFFERZONE’s Protection by Containment™ technology offers an additional layer of proactive defense. By isolating and containing threats from the moment they enter the environment, BUFFERZONE minimizes the risk of an attack ever taking hold within your network.

    With ransomware and other cyber threats growing increasingly sophisticated, organizations must evolve their defenses. Safe Workspace® approach to endpoint containment technology
    offers an advanced and effective solution to the modern cybersecurity landscape, ensuring a stronger and more resilient defense against the most pressing threats.

    References

    [1] Ransomware Protection and Containment Strategies, Google, https://services.google.com/fh/files/misc/ransomware-protection-and-containment-strategies-report-en.pdf

    Stop Worrying and Start Isolating – Prevent Mass WordPress Hacking Damages

    October 31, 2024

    Target: IT (Elementary)

    Tags: Isolation, Safe Workspace®, Safe Browser, Zero-day, Safe Browser, Protection By Containment™

    Recent cyberattacks have compromised over 6,000 WordPress sites using rogue plugins to install information stealers. These plugins quietly collect sensitive data from visitors, highlighting
    how easily even trusted sites can become threats. This alarming trend indicates that traditional security solutions are insufficient, especially as threats evolve. The GoDaddy Security team discovered this attack [2] and is now tracked under the new threat, ClickFix.

    Detection Is not Enough

    As web browsers increasingly become prime targets for attackers, vulnerabilities are exploited in new and complex ways [3], steadily increasing browser-based threats.
    Detection-based solutions struggle to keep up with these evolving attacks because they rely on identifying known patterns and signatures that sophisticated exploits can easily bypass.
    Moreover, browsers frequently release updates to patch newly discovered vulnerabilities. While regularly updating the browser and implementing attack detection measures helps, it
    does not limit the attackers’ new capabilities. Therefore, a different approach is needed. Application isolation is a powerful method for reducing threat exposure by confining web interactions within a secure, contained environment. When a user accesses a potentially compromised site, application isolation can prevent malicious scripts and plugins from interacting with the rest
    of the system. This effectively traps threats before they can cause damage, blocking malware from infiltrating beyond the browser.

    Protection By Containment™ Technology

    The BUFFERZONE® Safe Workspace® is a comprehensive security suite designed to protect endpoints through BUFFERZONE®’s patented Protection By Containment™ isolation technology. Unlike traditional virtual machines, it creates a lightweight, isolated environment for running applications with minimal resource consumption and intuitive user experience.
    This suite effectively safeguards against prominent endpoint attack vectors and includes several key components: Safe Browser, which secures web browsing and file downloads;
    SafeBridge®, a zero-trust file security solution that uses Content Disarm and Reconstruction (CDR) to neutralize evasive malware; Safe Removables, which isolates USBs, CDs, and DVDs, allowing files and media to be viewed and edited within a secure container; and Safe Mail, a Microsoft Outlook plugin that applies CDR to emails, enabling safe opening of links and attachments within the virtual container.

    If users visit a compromised WordPress site, such as in a  ClickFix attack, the BUFFERZONE® Safe Browser’s containment solution confines any malware within the container, preventing
    it from accessing sensitive data outside the isolated environment.

    In today’s threat landscape, where even reputable websites are frequent targets of mass hacks, application isolation and advanced solutions like BUFFERZONE® Safe Browser are essential
    for proactive cybersecurity. As hackers increasingly exploit plugins to distribute infostealers, robust prevention measures are crucial to shield individuals and organizations from the escalating
    risk of data breaches.

    Conclusion

    In an era where cyber threats are more sophisticated than ever, relying on outdated methods is a recipe for disaster. Organizations can create a resilient defense against external threats
    based on containment technology and keep their IT safe. This prevention approach, grounded in Zero Trust principles, offers a proactive way to mitigate risk and ensure the highest level
    of security. So, stop worrying about browsing attacks and start isolating—your digital assets depend on it.

    References

    [1] Lawrence Abrams, Over 6,000 WordPress sites hacked to install plugins pushing infostealers, https://www.bleepingcomputer.com/news/security/over-6-000-wordpress-sites-hacked-to-install-plugins-pushing-infostealers/

    [2] Denis Sinegubko, Threat Actors Push ClickFix Fake Browser Updates Using Stolen Credentials, https://www.godaddy.com/resources/news/threat-actors-push-clickfix-fake-browser-updates-using-stolen-credentials

    [3] BUFFERZONE, Stop Worrying and Start Isolating – 4th Zero-Day Exploit Discovered in May 2024, https://bufferzonesecurity.com/stop-worrying-and-start-isolating-4th-zero-day-exploit-discovered-in-may-2024/

     

     

     

     

     

    Stop Worrying and Start Isolating – Combining Phishing Detection and Zero-Trust Prevention

    August 19, 2024

    Target: IT (Elementary)

    Tags: Isolation, Safe Workspace®, Safe Browser, Zero-day, Anti-Phishing, NoCloud®, Protection by containment™

    In today’s rapidly evolving digital landscape, the sophistication of cyber threats continues to grow. Among the most prevalent and dangerous threats is mail phishing, which remains alarmingly effective despite widespread awareness. Phishing attacks have evolved, becoming increasingly targeted and difficult to detect with traditional methods. So, how do we protect ourselves? The answer lies in a powerful combination of phishing detection and application isolation, bolstered by Zero Trust principles.

    The Dangers of Mail Phishing Attacks

    Phishing attacks are a form of social engineering where attackers deceive users into providing sensitive information or executing malicious code. Typically, an unsuspecting user receives an email that appears legitimate, often mimicking trusted institutions like banks or government agencies. The email may contain a link to a fake website or an attachment loaded with malware. Once clicked or opened, the consequences can be devastating—data breaches, financial loss, and unauthorized access to critical systems.

    Despite advancements in email security, phishing remains a potent threat. Attackers constantly adapt, using sophisticated tactics such as spear-phishing, targeting specific individuals or organizations with tailored content. Even the most vigilant user can be tricked, and traditional email filters or signature-based detection methods often fail to catch these attacks before it’s too late.A recent attack executed a spear-phishing campaign codenamed EastWind [1]. Spear phishing is a highly targeted phishing attack where attackers personalize their fraudulent emails or messages to a specific individual, organization, or group. Unlike general phishing attacks, which cast a wide net hoping to catch as many victims as possible, spear phishing is more precise and often more dangerous.

    EastWind attack [1] started with a spear-phishing email with malicious RAR archive attachments containing a Windows shortcut (LNK) file that, upon opening, activates the infection sequence. However, email phishing attacks may contain other attack vectors, such as phishing links, malware download links, or other file attachments targeted to trick users.

    The Power of Isolation as a Prevention Strategy

    Given the limitations of conventional defenses, it’s time to rethink our approach to phishing prevention. One of the most effective strategies is application isolation, which can significantly reduce the risks of opening email attachments and links.

    What is Application Isolation?

    Application isolation involves running potentially dangerous content in a virtual container separate from the primary operating system. When a user clicks on a link or opens an attachment, the content is executed within this isolated environment, preventing malicious code from affecting the host system.

    Benefits of Isolation

    The critical advantage of isolation is its ability to contain threats. Even if an attachment or link is malicious, the damage is confined to the virtual container, protecting the rest of the system from harm. This approach drastically reduces the risk of infection from phishing attacks and provides an additional layer of security that complements existing defenses.

    Real-World Impact

    Consider a scenario where a user unknowingly opens a phishing email containing a malware attachment. In a traditional setup, the malware could spread throughout the system, compromising sensitive data and causing significant damage. However, with application isolation, the malware is trapped within the virtual container, unable to impact the broader environment. The user’s data remains safe, and the organization avoids a potentially costly breach.

    Combining Isolation with Phishing Detection

    While isolation provides robust protection, combining it with advanced phishing detection technology creates an even stronger defense. Modern anti-phishing tools use artificial intelligence and machine learning to analyze links and attachments, identifying potential threats before they can cause harm.

    Staying Safe With BUFFERZONE®

    To defend against new browser threats, individuals and organizations must implement proactive security measures, as detecting abnormal behavior is often too late when dealing with zero-day attacks. That is why we developed BUFFERZONE® Safe Workspace®, a set of zero-trust solutions including Safe Mail,NoCloud® Artificial Intelligence (AI) Anti-Phishing, SafeBridge® Content Disarm and Reconstruction (CDR), and Safe Browser. Safe Browser is a secure browsing solution that separates your existing Browser from trusted enterprise resources, providing isolation and protection.

    Safe Mail is a Microsoft Outlook plugin that utilizes BUFFERZONE® Safe Workspace® that  it’s strategic concept is Protection by containment™ to open links and attachments safely within a secure virtual container. This container isolates browsing and file activity, safeguarding your computer from evasive attacks. This sophisticated Zero-day exploit attack is contained and will not be able to penetrate the organization and steal sensitive data. Furthermore, the isolation restricts lateral movement within the organization, and your existing security controls can scan the isolated zone, adding extra layers of protection.

    Conclusion

    In an era where cyber threats are more sophisticated than ever, relying on outdated methods is a recipe for disaster. Organizations can create a resilient defense against mail phishing attacks by combining phishing detection with application isolation. This approach, grounded in Zero Trust principles, offers a proactive way to mitigate risk and ensure the highest level of security. So, stop worrying about phishing attacks and start isolating—your digital assets depend on it.

    References

    [1] Ravie Lakshmanan, EastWind Attack Deploys PlugY and GrewApacha Backdoors Using Booby-Trapped LNK Files, https://thehackernews.com/2024/08/russian-government-hit-by-eastwind.html

     

     

     

     

     

    HTML Smuggling Phishing Attacks Targeting Banks

    July 30, 2024

    Target: Tech User

    Tags: Isolation, Safe Workspace®, Safe Browser, Zero-day, AI Anti-Phishing, NoCloud®, Protection by containment™

    Introduction

    In the constantly changing world of cyber threats, phishing attacks remain a persistent and severe risk, especially for financial institutions. Among the different methods attackers use, HTML smuggling has become a sophisticated way to bypass traditional security measures. This blog examines the concept of HTML smuggling, its use in phishing attacks against banks, and ways to reduce these risks and presents BUFFERZONE® research lab’s new finding of a smuggling attack targeting Wells Fargo Bank users.

    What is HTML Smuggling?

    HTML smuggling is a sophisticated technique attackers use to embed malicious payloads within benign HTML content. Unlike traditional phishing methods that rely on attaching malicious files or providing direct links to harmful content, HTML smuggling involves crafting HTML documents that conceal or obfuscate malicious elements. This approach allows attackers to bypass email filters, web proxies, and other security controls that typically do not perform deep inspection of HTML files.

    The technique leverages data encapsulation to disguise malicious data within legitimate-looking files. Web applications can use HTML5 and JavaScript capabilities to create and manipulate files directly in the browser. Attackers exploit these features to embed harmful scripts within innocuous-appearing files, effectively evading conventional security measures, such as Firewalls, Intrusion Detection Systems (IDS), and other next-generation phishing detection. The adaptability and versatility of HTML smuggling make it a potent method for delivering a variety of malicious payloads.

    Wells Fargo Phishing Attack

    While browsing to the original link the unsuspected user will view a copy of Wells Fargo website.

    However, this page is a sophisticated scheme that hosted on Cloudflare servers and not on Wells Fargo website as can be seen from the URL that in a blink of an eye is replaced instead of HTTPS with blob:https. Threat actors use an HTML5 Binary Large Object (Blob) to encapsulate a harmful script within an innocuous-looking HTML page.

    HTML Blob is a data structure used to store binary data, such as images, audio, or other multimedia files, as well as text data. Blobs are commonly used in web development to handle large amounts of data efficiently and to manipulate file data within the browser without needing to interact with a server.

    This is the result of the HTML smuggling attack as can be seen in the resulting URL.

    To understand the attack steps, we can navigate to: “view-source:<URL>”

    The output is the following script:

    The variable “encodedStringAToB” contains a BASE64 string decoded using the atob() function. Next in the script, a Blob object is created. Window.URL.createObjectURL(myBlob) generates a URL pointing to that object’s data and window.URL.revokeObjectURL(URL) revokes the previously created URL object using URL.createObjectURL().

    Phishing Attackers Targeting Banks

    Banks and financial institutions are prime targets for HTML smuggling phishing attacks due to their valuable financial data and the sensitivity of the information they handle. Attackers often use the following strategies:

    • Impersonation: Crafting HTML files that mimic legitimate bank communications, such as account statements or security alerts, to deceive recipients into opening the malicious content.
    • Exploiting Trust: Utilizing familiar bank branding and terminology to create a sense of urgency or legitimacy, prompting targets to act without questioning the authenticity of the content.
    • Social Engineering: Leveraging social engineering tactics to create convincing scenarios that encourage targets to open or interact with the malicious HTML file.

    How BUFFERZONE Can Help?

    BUFFERZONE® Safe Workspace®, a set of zero-trust solutions including: Protection by containment™, Safe Mail, NoCloud® Artificial Intelligence (AI) Anti-Phishing, SafeBridge® Content Disarm and Reconstruction (CDR), and Safe Browser.

    Safe Browser is a secure browsing solution that separates your existing Browser from trusted enterprise resources, providing isolation and protection.

    Safe Removables efficient isolation of USB, CD and DVD while enabling to open files in a secure virtual container.

    Safe Mail is a Microsoft Outlook plugin that utilizes BUFFERZONE® Safe Workspace® that is based on Protection by containment™ to open links and attachments safely within a secure virtual container. This container isolates browsing and file activity, safeguarding your computer from evasive attacks. This sophisticated Zero-day exploit attack is contained and will not be able to penetrate the organization and steal sensitive data. Furthermore, Protection by containment™, isolation restricts lateral movement within the organization, and your existing security controls can scan the isolated zone, adding extra layers of protection.

    BUFFERZONE NoCloud® AI detect advanced phishing attacks originated from browsing in the web or from your email throw Safe Mail solution. By leveraging Deep Learning engine, we detect and prevent sophisticated phishing attacks.

    Conclusion

    HTML smuggling poses an evolving and sophisticated threat in phishing attacks against banks and enterprises. Organizations can safeguard against sophisticated threats using prevention-based isolation and advanced anti-phishing detection strategies.