Gentlemen ransomware disables Defender, deletes backups and spreads
Acronis describes a Go-based RaaS from 2025 that also targets Linux, NAS and BSD, with more than 800 claimed victims.
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7 stories, newest first · one card per story
Stories tagged #windows-defender
NightmareEclipse's latest zero-day leaves Microsoft Defender stuck in the past
NightmareEclipse released BigDiskBuster, a PoC that blocks Microsoft Defender platform and signature updates by exhausting disk space.
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Chaotic Eclipse Released BigDiskBuster, A PoC For Windows Defender Update DoS Zero-Day
Researcher Chaotic Eclipse published BigDiskBuster, a PoC that blocks Microsoft Defender signature and platform updates.
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MSNightmare has Released a Windows Defender Update DoS Vulnerability Called BigDiskBuster
Researcher MSNightmare released BigDiskBuster, a PoC that exhausts disk space and locks MRT.exe to stop Windows Defender security updates from installing.
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Nightmare-Eclipse Strikes Again with 'ShieldCrash' Windows Exploit
A researcher known as Nightmare-Eclipse published another zero-day exploit, dubbed ShieldCrash, targeting Windows Defender.
Serial Microsoft 0-day hunter drops yet another Defender exploit
Researcher Nightmare Eclipse released ShieldCrash, a Microsoft Defender zero-day PoC that bypasses September patches and reads files as SYSTEM.
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Cybercriminals Turn GTA VI Leaks Into Malware Bait
Attackers spread fake 113GB GTA VI builds whose 50KB payload whitelists the entire C: drive in Windows Defender, alongside credential phishing and infostealer campaigns.
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