'BigDiskBuster' Leaves Microsoft Defender Running While Blocking Updates
BigDiskBuster proof of concept keeps Microsoft Defender running while blocking updates and opening a detection gap.
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Malware
BigDiskBuster
- Mentions · 7d0
- Mentions · 30d0
- All mentions3
- First seenSep 22, 2026
- Last mentionedOct 6, 2026
Timeline
3 articles · newest firstResearcher Drops BigDiskBuster Zero-Day PoC That Blocks Microsoft Defender Updates
Researcher publishes unpatched BigDiskBuster PoC that can block Microsoft Defender signature and platform updates.
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Nightmare Eclipse Drops New Microsoft Defender Exploit After Revealing Identity
Nightmare Eclipse released a new Windows Defender PoC exploit called BigDiskBuster to prevent Defender from completing platform and signature updates.
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Related CVEs
by mentions- CVE-2026-4549863%7.5Denial-of-Service Vulnerability in Microsoft Defender Antimalware Platform
Appears with
- Microsoftorganization · 3
- Microsoft Defenderproduct · 2
- Microsoftvendor · 2
- UnDefendmalware · 1
- BlueHammermalware · 1
- OpenCutai model · 1
- CISAorganization · 1
- Windowsproduct · 1
- Nightmare Eclipseorganization · 1
- PixAIai model · 1
- DaVinci Resolveai model · 1
- Windows Defenderproduct · 1
- GPT-6 Astraai model · 1
- RedSunmalware · 1
Entities are extracted by the model from each article. First seen , last mentioned . Watching keeps it in this browser only (no account); the watchlist page and dashboard alerts use it.