Tag: windows
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Ransomware Uses ChaCha20 and Curve25519 to Encrypt Windows Files
Payload ransomware is a new Windows ransomware family that combines ChaCha20 stream encryption with per-file Curve25519 ECDH key exchange, making victim data effectively unrecoverable without the attackers’ private key. It also implements strong anti-forensics, including ETW patching, VSS deletion, event log wiping, and aggressive process/service termination to hinder detection and recovery. Payload first appeared publicly…
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APT Group Patches termsrv.dll to Enable Multiple RDP Sessions
A sustained cyber espionage campaign attributed to the Cloud Atlas advanced persistent threat (APT) group has introduced a stealthy technique that modifies the Windows termsrv.dll library to enable multiple Remote Desktop Protocol (RDP) sessions on compromised systems. Observed throughout 2025 and continuing into 2026, the activity primarily targets government and commercial entities in Russia and…
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Zentrale Analyse und Betriebs-Monitoring für hybride Serverlandschaften – Lokale Windows-Server aus der Cloud überwachen mit Azure Arc
First seen on security-insider.de Jump to article: www.security-insider.de/lokale-windows-server-aus-der-cloud-ueberwachen-mit-azure-arc-a-3652952f07d88f470e3f3620ffe1ffb4/
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Zentrale Analyse und Betriebs-Monitoring für hybride Serverlandschaften – Lokale Windows-Server aus der Cloud überwachen mit Azure Arc
First seen on security-insider.de Jump to article: www.security-insider.de/lokale-windows-server-aus-der-cloud-ueberwachen-mit-azure-arc-a-3652952f07d88f470e3f3620ffe1ffb4/
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Organizations knowingly ship vulnerable code amid shrinking exploit windows
First seen on scworld.com Jump to article: www.scworld.com/brief/organizations-knowingly-ship-vulnerable-code-amid-shrinking-exploit-windows
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New Telecom Espionage Campaign Tied to China
Researchers Trace Linux and Windows Toolsets to Suspected PRC Espionage Activity. Newly discovered malware tied to China-linked actors breached telecom providers across Asia and the Middle East, highlighting growing efforts to gain persistent access into interconnected communications infrastructure. First seen on govinfosecurity.com Jump to article: www.govinfosecurity.com/new-telecom-espionage-campaign-tied-to-china-a-31763
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Microsoft Warns: Windows Zero-Day ‘YellowKey’ Can Bypass BitLocker
Microsoft has released a temporary mitigation for YellowKey, a Windows zero-day that can reportedly bypass BitLocker protections. The post Microsoft Warns: Windows Zero-Day ‘YellowKey’ Can Bypass BitLocker appeared first on TechRepublic. First seen on techrepublic.com Jump to article: www.techrepublic.com/article/news-microsoft-yellowkey-bitlocker-bypass-mitigation/
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Microsoft addresses Windows Update failures in restricted environments
First seen on scworld.com Jump to article: www.scworld.com/brief/microsoft-addresses-windows-update-failures-in-restricted-environments
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Trend Micro warns of Apex One zero-day exploited in the wild
Japanese cybersecurity software company Trend Micro has addressed an Apex One zero-day vulnerability exploited in attacks targeting Windows systems. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/trend-micro-warns-of-apex-one-zero-day-exploited-in-attacks/
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Making Vulnerable Drivers Exploitable Without Hardware – The BYOVD Perspective
1 IntroductionThis article provides a technical analysis of how many Windows kernel mode drivers can be interacted with from user mode without the hardware they were developed for. This work was motivated by driver-oriented vulnerability research and the need to evaluate the exploitability of individual findings, which frequently affect code whose reachability is hardware-gated. The…
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U.S. CISA adds Trend Micro Apex One and Langflow to its Known Exploited Vulnerabilities catalog
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Trend Micro Apex One and Langflow flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA)added Windows Shell and ConnectWise ScreenConnect flaws to its Known Exploited Vulnerabilities (KEV) catalog. Below are the flaws added to the catalog: CVE-2025-34291(CVSS score of 9.4) is…
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U.S. CISA adds Microsoft and Adobe flaws to its Known Exploited Vulnerabilities catalog
Tags: adobe, cisa, cve, cybersecurity, exploit, flaw, infrastructure, kev, microsoft, vulnerability, windowsU.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Microsoft and Adobe flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Windows Shell and ConnectWise ScreenConnect flaws to its Known Exploited Vulnerabilities (KEV) catalog. Below are the flaws added to the catalog: CVE-2008-4250 (CVSS v3.1 score of 9.8) is a…
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Windows Privilege Escalation: Bypass UAC
Overview This article delivers a complete, hands-on walkthrough of User Account Control (UAC) bypass techniques against a default-configured Windows 10 host. The walkthrough begins with First seen on hackingarticles.in Jump to article: www.hackingarticles.in/windows-privilege-escalation-bypass-uac/
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Chinese hackers target telcos with new Linux, Windows malware
A Chinese cyber-espionage campaign has been targeting telecommunications providers with newly discovered Linux and Windows malware dubbed Showboat and JFMBackdoor, respectively. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/chinese-hackers-target-telcos-with-new-linux-windows-malware/
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Google Chrome Security Flaws Could Let Attackers Execute Code Remotely
Google has released a critical security update for its Chrome browser, addressing multiple vulnerabilities that could allow attackers to execute arbitrary code on affected systems. The update, now rolling out to users globally, upgrades Chrome to version 148.0.7778.178/179 for Windows and macOS, and 148.0.7778.178 for Linux. According to the official Chrome Releases blog, the latest…
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When Identity is the Attack Path
Consider a cached access key on a single Windows machine. It got there the way most cached credentials do – a user logged in, and the key stored itself automatically. Standard AWS behavior. No one misconfigured anything or violated a policy. Yet that single key, which was easily accessible to a minor-league attacker, could have…
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Microsoft’s Retired IE Tool MSHTA Now Being Used in Fileless Malware Attacks
Despite Internet Explorer’s retirement, hackers are abusing the legacy MSHTA utility in stealthy fileless malware attacks targeting Windows users. First seen on hackread.com Jump to article: hackread.com/microsoft-retired-ie-tool-mshta-fileless-malware-attack/
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Microsoft warnt: Hacker attackieren Windows-Nutzer über Lücken im Defender
Angreifer können über den Microsoft Defender unter anderem Schadcode einschleusen und sich Systemrechte verschaffen. Erste Attacken laufen bereits. First seen on golem.de Jump to article: www.golem.de/news/microsoft-warnt-hacker-attackieren-windows-nutzer-ueber-luecken-im-defender-2605-208918.html
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New GhostTree Attack Causes EDR Tools to Hang, Leaving Files Unscanned
A newly disclosed attack technique dubbed “GhostTree” is raising concerns among defenders after researchers demonstrated how it can disrupt endpoint detection and response (EDR) tools and bypass file scanning mechanisms on Windows systems. The technique, discovered by Varonis Threat Labs, abuses NTFS junctions to create recursive directory structures that can cause security tools to hang indefinitely. New…
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Fake Tax Assessment Pages Spread Windows Malware
Hackers are actively targeting Windows users with fake Indian Income Tax assessment pages in a campaign tracked as TAX#TRIDENT. The campaign begins with fraudulent tax assessment or penalty pages designed to create urgency. Victims are prompted to download what appears to be an official document, often packaged as a ZIP archive. Once opened, the archive…
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Microsoft Releases Mitigation for YellowKey BitLocker Bypass CVE-2026-45585 Exploit
Microsoft on Tuesday released a mitigation for a BitLocker bypass vulnerability named YellowKey following its public disclosure last week.The zero-day flaw, now tracked as CVE-2026-45585, carries a CVSS score of 6.8. It has been described as a BitLocker security feature bypass.”Microsoft is aware of a security feature bypass vulnerability in Windows publicly referred to as…
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Microsoft shares mitigation for YellowKey Windows zero-day
Microsoft has shared mitigations for YellowKey, a recently disclosed Windows BitLocker zero-day vulnerability that grants access to protected drives. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/microsoft/microsoft-shares-mitigation-for-yellowkey-windows-zero-day/
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Hackers Exploit MSHTA to Deploy LummaStealer and Amatera Malware
Hackers are increasingly abusing the legacy Microsoft HTML Application Host (MSHTA) utility to deliver commodity malware such as LummaStealer and Amatera. Despite being tied to Internet Explorer, which was retired in 2022, MSHTA remains default in Windows, making it an attractive Living-off-the-Land binary (LOLBIN) for stealthy attacks. MSHTA allows execution of VBScript and JavaScript from…
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Hackers Exploit MSHTA to Deploy LummaStealer and Amatera Malware
Hackers are increasingly abusing the legacy Microsoft HTML Application Host (MSHTA) utility to deliver commodity malware such as LummaStealer and Amatera. Despite being tied to Internet Explorer, which was retired in 2022, MSHTA remains default in Windows, making it an attractive Living-off-the-Land binary (LOLBIN) for stealthy attacks. MSHTA allows execution of VBScript and JavaScript from…
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Windows Zero-Day Barrage Continues After Patch Tuesday
YellowKey, GreenPlasma, and MiniPlasma add to the growing list of vulnerabilities a security researcher disclosed over the past six weeks. First seen on darkreading.com Jump to article: www.darkreading.com/cyberattacks-data-breaches/windows-zero-day-barrage-continues-after-patch-tuesday
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Microsoft Confirms Windows Update Bug Blocking Security Fixes
Microsoft confirmed that KB5089549 can fail with error 0x800f0922 on Windows 11 devices with low EFI partition space, and shared workarounds are available. The post Microsoft Confirms Windows Update Bug Blocking Security Fixes appeared first on TechRepublic. First seen on techrepublic.com Jump to article: www.techrepublic.com/article/news-windows-update-rollout-bug/
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Microsoft plans to improve Windows 11 driver quality in 2026
Microsoft plans to raise the quality bar of Windows 11 drivers, as drivers “sit at the heart of every Windows experience” and connect the OS to the “silicon, components, and peripherals.” First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/microsoft/microsoft-plans-to-improve-windows-11-driver-quality-in-2026/
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Malware-Kampagnen in Windows über das Legacy-Internet-Tool MSHTA von Microsoft
Cyberkriminelle nutzen legitime und mit Vorliebe veraltete Betriebssystemtools, um sie für ihre Zwecke zu missbrauchen und Angriffe zu tarnen. Je vertrauenswürdiger ein Dienstprogramm, umso besser. So beobachten die Bitdefender Labs den kontinuierlichen Exploit des Microsoft-HTML-Application-Host (MSHTA) und verzeichneten in den letzten Monaten eine höhere Frequenz von Angriffsketten, in denen die ausführbare Datei mshta.exe eine Rolle…
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Legacy Microsoft Utility Fuels New Wave of Malware
Researchers Link MSHTA Windows Utility to Lumma Stealer, ClickFix Campaigns. Cybercriminals continue abusing Microsoft’s legacy MSHTA utility to deliver malware, with researchers saying that the default-enabled Windows component remains a favored living-off-the-land tool for PowerShell attacks, info stealers and multi-stage malware loaders. First seen on govinfosecurity.com Jump to article: www.govinfosecurity.com/legacy-microsoft-utility-fuels-new-wave-malware-a-31716
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Internet Explorer may be dead, but its ghost still runs malware
A legacy Windows tool that refuses to die: Bitdefender’s findings suggest MSHTA remains attractive because it checks several boxes attackers like. These include it being Microsoft-signed, preinstalled on Windows, capable of in-memory execution, and still implicitly trusted in many environments.Other sophisticated campaigns picked it up too. Bitdefender detailed PurpleFox using MSHTA to launch ‘msiexec’ commands…