Russia-Aligned Hackers Use GuardBreaker Prompt Injection to Disrupt AI Malware Analysis
Russia-aligned group UAC-0099 embeds GuardBreaker prompt injection in a VBScript comment to make AI malware scanners refuse analysis of a MATCHBOIL loader.
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Product
MATCHBOIL
- Mentions · 7d0
- Mentions · 30d0
- All mentions4
- First seenAug 31, 2026
- Last mentionedSep 11, 2026
Timeline
4 articles · newest firstHackers Weaponize AI Safety Guardrails to Hide Malware From LLM-Powered Security Scanners
ESET says Russia-aligned actor UAC-0099 hid guardrail-triggering comments in VBScript to derail LLM-based malware scanners in Ukraine.
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Russia-Aligned UAC-0099 Plants Nuclear Weapon Prompt in Malware to Disrupt AI Analysis
Russia-aligned UAC-0099 planted a nuclear-weapon prompt inside malicious VBS scripts to derail LLM-based malware analysis targeting Ukraine.
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Russian hackers plant nuclear weapon prompt in malware to trip AI safety guardrails
ESET reports Russian group UAC-0099 hid a prompt in VBS malware comments to trip AI safety filters and disrupt automated malware analysis in Ukraine.
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Appears with
- MATCHBOILmalware · 4
- UAC-0099threat actor · 4
- ESETvendor · 4
- ESETorganization · 3
- CERT-UAorganization · 3
- LUNCHPOKEmalware · 1
- CERT-UAthreat actor · 1
- Sandwormthreat actor · 1
- Step Securityvendor · 1
- MATCHWOKmalware · 1
- TeamPCPthreat actor · 1
- Flarevendor · 1
- Notepad++product · 1
- GRUthreat actor · 1
- BURNYBEARmalware · 1
- LUNCHPOKEproduct · 1
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