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S9039malware

LazyWiper

LazyWiper is a destructive malware observed targeting a manufacturing sector company during the 2025 Poland Wiper Attacks. LazyWiper is a native Windows PowerShell script that is believed to have been generated by a large language model (LLM). LazyWiper overwrites files on the system using the C# function WriteRandomBytes() and can target multiple specific file types by their extensions.

Platforms: Windows

MITRE ATT&CK ↗

Linked entities · 8

usesT1083File and Directory Discovery usesT1679Selective Exclusion usesT1685Disable or Modify Tools usesT1059.001PowerShell usesT1480Execution Guardrails usesT1082System Information Discovery usesT1485Data Destruction usesT1588.007Artificial Intelligence