Ransomware Group
Ms13089
MS13089 is a newly emerged ransomware group (first observed December 2025) that named itself after a 2013 Microsoft Security Bulletin, claiming a handful of victims including a law firm, operating primarily as a double-extortion actor.
Known victims5
Threat level
LOW
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Known infrastructure
The following Tor hidden services have been associated with this group:
MS13-089 Blog
These sites are malicious. Open them only from an isolated environment.
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