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Sun, 6 Sept 2026

  1. Four REVSTEALER-Linked Modules Disable Windows Update and Defender to Run a Crypto Miner

    Elastic Security Labs has documented four previously unreported programs associated with REVSTEALER, an emerging Windows information stealer, that remain on an infected machine after the stealer deletes itself. One of them switches off Windows Update and Microsoft Defender before running a cryptocurrency miner. The company named the four programs ProManager, WinUpdate, SoftManager, and

    The Hacker NewsMicrosoft, Windows

Fri, 4 Sept 2026

  1. Microsoft says some users can’t open the Teams desktop client

    Microsoft is working to resolve a known issue that causes delays or blocks some users from opening the Microsoft Teams desktop client on Windows systems.

    BleepingComputerMicrosoft, Windows
  2. New CrowdStrike 'FalconFlank' zero-day grants SYSTEM privileges

    An anonymous security researcher who uses the "Nightmare Eclipse" handle released a CrowdStrike Falcon zero-day exploit named "FalconFlank" that lets attackers escalate privileges on up-to-date Windows systems.

    BleepingComputerWindows

Thu, 3 Sept 2026

  1. BraZetsu Malware Turns Compromised Windows Hosts Into Criminal Marketplace Inventory

    Cybersecurity researchers have disclosed details of a sophisticated Python-based Windows malware framework called BraZetsu that fuels an underground marketplace commercializing access to compromised hosts. "Unlike the standard infostealer model, BraZetsu is a comprehensive master toolkit that empowers Initial Access Brokers (IABs) by turning compromised systems into highly valuable commercial

    The Hacker NewsWindows

Wed, 2 Sept 2026

  1. Fake Software Installers Disable Windows Update and Weaken Microsoft Defender

    An active malware campaign is using bogus software-download websites to impersonate trusted vendors and distribute malicious installers. "The campaign has targeted users looking to download popular software and has resulted in compromises across multiple organizations and industries, primarily affecting China-based operations of multinational organizations and Chinese-speaking users," Microsoft

    The Hacker NewsMicrosoft, Windows

Fri, 14 Aug 2026

  1. Metasploit Wrap Up: Lot of summer shells and fit http profiles

    This wrap-up brings a full-on shell parade. Thirteen shiny new modules landed, starting with a buffet of RCEs. WordPress WP2Shell, Ghost CMS, Joomla JCE, Langflow, OpenCATS, Pterodactyl Panel, SonicWall SMA1000, Ray Dashboard, a Pix-for-WooCommerce, and for those who like their exploits closer to the bare-metal, the Fragnesia Linux kernel LPE (CVE-2026-46300). Metasploit also got the glow-up of the summer with the new http malleable profiles, MCP functionality and linux multi fetch payloads (more details on the [official 6.5 release blog post](https://www.rapid7.com/blog/post/pt-metasploit-framework-6-5-released/)!). Windows on ARM confirm to be the new first-class citizenship thanks to brand-new AArch64 reverse-TCP shells (both inline and staged), so your Snapdragon boxes can join the party too. Last but not least, an important message: *Nyan Nyan Nyan Nyan Nyan Nyan.* New module content (13) Ray Dashboard Logs API Path Traversal Author: Richard Howe Type: Auxiliary Pull request: #21681 contributed by rmhowe425 Path: `gather/ray_dashboard_logs_api_path_traversal` Description: This adds an auxiliary module that leverages a path traversal vulnerability in Ray to list the contents of

    Rapid7 BlogWindows, SonicWall, Linux
  2. APT group HoneyMyte upgrades CoolClient: the backdoor gets a kernel-level Windows rootkit

    Our experts discovered a new CoolClient backdoor variant with a kernel-mode rootkit driver that hides malicious processes, files, and network connections from security tools and threat analysts.

    SecurelistWindows

Wed, 12 Aug 2026

  1. Lazarus Used Post-Quantum Key Exchange to Deliver Zero-Day

    Lazarus malware used post-quantum key exchange to protect delivery of a Windows zero-day exploit

    Infosecurity MagazineWindows, Exchange

Tue, 11 Aug 2026

  1. Microsoft Plugs Nearly 400 Security Holes

    Microsoft today released updates to remedy at least 398 security vulnerabilities in its Windows operating systems and supported software, including one weakness that is already being actively exploited and two others that were publicly detailed prior to today.

    Krebs on SecurityMicrosoft, Windows

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