security researchers

Tech Optimizer
April 16, 2026
Security researchers at Huntress discovered adware signed by Dragon Boss Solutions LLC that primarily displayed unwanted advertisements and redirected users to various sites. The malware included a sophisticated update mechanism that disabled antivirus programs. The primary update domain and its backup were not registered, making them exploitable. Tens of thousands of endpoints were compromised, affecting universities, operational technology networks, government agencies, and Fortune 500 firms.
Winsage
April 15, 2026
A sophisticated fake Windows update site has emerged, designed to mimic Microsoft’s branding to distribute malware, specifically targeting individuals seeking early access to Windows 11 version 24H2. The fraudulent site resembles a legitimate cumulative update download page, using familiar design elements to evade detection. The malware operates as an information-stealing entity, targeting saved passwords and browser sessions, potentially bypassing two-factor authentication. It transmits stolen credentials through encrypted channels to external servers. The installer uses legitimate packaging tools to minimize detection and employs obfuscated scripts within legitimate software components. The campaign modifies system startup entries and creates disguised shortcuts to maintain persistence. Researchers noted the use of a typosquatted domain and meticulously spoofed file properties. As of April 2026, Microsoft has not released Windows 11 version 24H2 to the public, and legitimate updates are only available through Windows Update. Users are advised to obtain updates exclusively through official channels and keep security features updated.
Tech Optimizer
April 14, 2026
A recent discovery by Malwarebytes has identified a cyber threat involving a typosquatted domain that mimics official Microsoft support pages. This site uses authentic branding and KB-style reference numbers to deceive users into downloading what appears to be a legitimate cumulative update. The malware, once installed, operates stealthily, stealing passwords from browsers and active sessions, which allows attackers to bypass two-factor authentication. The stolen data is sent to external servers through encrypted channels. Initial scans showed zero detections by multiple antivirus engines due to the malware's obfuscated scripts. It also modifies system startup entries and creates disguised shortcuts for persistence. Microsoft has not yet released Windows 11 version 24H2 to general users, and updates should only be obtained through official channels to avoid potential threats.
Winsage
April 13, 2026
David Plummer, a veteran Microsoft engineer, created the original Windows Task Manager (Taskmgr.exe) in the 1990s, which had a file size of only 80KB. This small size was crucial for its functionality during system freezes. Plummer used a mutex to check if another instance of the program was running, allowing for efficient operation without complex process lists or loops. His recent reflections in early 2026 have sparked discussions about the evolution of software, particularly criticizing Windows 11 for straying from its foundational purpose and emphasizing resource efficiency. The 1990s hardware constraints forced developers to innovate, contrasting with today's environment where abundant resources allow for less efficient applications. Plummer's mutex technique is now seen as a benchmark in application design, highlighting a generational shift in development practices. The discourse around his 80KB Task Manager raises questions about the future of software procurement and the importance of memory footprint in purchasing decisions.
AppWizard
April 11, 2026
Security researchers discovered 213 vulnerabilities in Max, Russia's state-backed messaging app, during a bug bounty initiative. This information was shared by Alexei Batyuk, CTO of Positive Technologies, at the Svyaz-2026 exhibition. The bug bounty program has been active since July 1, 2025, resulting in 288 accepted vulnerability reports and total payouts of nearly 22 million rubles. Common vulnerabilities could allow unauthorized access to user data through the manipulation of object identifiers. Max's press service claimed that user data is "reliably protected" and emphasized the importance of independent white-hat hackers in identifying vulnerabilities. Max was launched by VK in March 2025 and is being promoted by Russian authorities amid efforts to block other messaging platforms like Telegram and WhatsApp. The app has faced criticisms regarding user surveillance and security vulnerabilities.
Winsage
March 31, 2026
Microsoft will eliminate default trust for kernel drivers signed through the outdated cross-signed root program with the April 2026 Windows update. All new kernel drivers must be certified via the Windows Hardware Compatibility Program (WHCP). This change will affect Windows 11 builds 24H2, 25H2, and 26H1, as well as Windows Server 2025, with future versions following the same standards. The update will begin in evaluation mode, monitoring driver loads for compliance before transitioning to enforcement mode. An allow list of reputable drivers will be maintained for legacy hardware, and enterprises can use Application Control for Business policies to authorize specific drivers. Users with older hardware may face compatibility issues if their drivers are not WHCP-certified.
Tech Optimizer
March 30, 2026
Security researchers have identified a new macOS information stealer called Infiniti Stealer, which extracts sensitive information from Mac users using a social engineering tactic known as ClickFix. This method involves a counterfeit Cloudflare human verification page that prompts users to enter a command in their Mac Terminal, allowing the malware to bypass security measures. The infection process consists of three stages: 1. A Bash dropper script downloads and decodes a hidden payload. 2. A Nuitka loader, designed for Apple Silicon Macs, complicates detection by compiling Python code into a native application. 3. The final payload, Infiniti Stealer, harvests personal data such as browser passwords, macOS Keychain entries, cryptocurrency wallets, and captures screenshots. Indicators of Compromise (IOCs) associated with Infiniti Stealer include: - MD5 Dropper: da73e42d1f9746065f061a6e85e28f0c - SHA256 Stage-3: 1e63be724bf651bb17bcf181d11bacfabef6a6360dcdfda945d6389e80f2b958 - C2 Domain: update-check[.]com - C2 URL: https://update-check[.]com/m/7d8df27d95d9 - Panel: Infiniti-stealer[.]com - Packer Magic: 4b 41 59 28 b5 2f fd (KAY + zstd) - Debug Log: /tmp/.bs_debug.log
Winsage
February 26, 2026
Security researchers have developed a working Proof of Concept (PoC) exploit for a vulnerability in the Windows kernel, identified as CVE-2026-2636, which allows low-privileged users to induce a Blue Screen of Death (BSoD), resulting in a Denial of Service. This vulnerability is linked to the Windows Common Log File System (CLFS) driver, specifically the CLFS.sys component, and arises from improper handling of invalid or special elements within CLFS (CWE-159). The PoC demonstrates that a non-administrative user can trigger the bug by executing a crafted ReadFile operation on a handle linked to an opened .blf log file without the expected I/O Request Packet (IRP) flags set. This leads to a critical inconsistency in the driver, causing Windows to invoke the kernel routine KeBugCheckEx, which results in a BSoD. The CVE-2026-2636 has a CVSS score of 5.5 (Medium) and poses a high impact on availability, allowing any authenticated user to crash the host reliably. Microsoft addressed this vulnerability in the September 2025 cumulative update, protecting systems running Windows 11 2024 LTSC and Windows Server 2025 by default. However, older or unpatched builds remain vulnerable. Organizations are advised to verify the deployment of the September 2025 updates, prioritize patching multi-user systems, and monitor for unusual spikes in BSoD events.
Search