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First known AI-powered ransomware uncovered by ESET Research

ID: be7e7b71-8b8c-523a-bda8-0e6a093322d6

STIX ID: report--be7e7b71-8b8c-523a-bda8-0e6a093322d6

Feed Name: WeLiveSecurity (ESET Research)

Threat Score
35/100

Date Published: 2025-08-26

Date Updated: 2026-05-01

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ESET researchers discovered PromptLock, described as the first known AI-powered ransomware proof-of-concept that uses a local gpt-oss-20b model via the Ollama API to generate and execute Lua scripts for filesystem enumeration, data exfiltration, and encryption; Golang Windows and Linux samples were uploaded to VirusTotal and several SHA-1 IoCs are provided, but the malware has not been observed in active attacks.

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