S9039 LazyWiper

malwareEnterprise

platformsWindows

also known asLazyWiper

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.

techniques used (8)

ATT&CK techniques this enables or maps to.

T1059.001PowerShell
T1082System Information Discovery
T1083File and Directory Discovery
T1480Execution Guardrails
T1485Data Destruction
T1588.007Artificial Intelligence
T1679Selective Exclusion
T1685Disable or Modify Tools

used by campaigns (1)

Campaigns that use this.

C00632025 Poland Wiper Attacks

source

Where this definition is published.

view on ATT&CK

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