Bert
BERT is a newly emerged ransomware group first identified in mid-2025, targeting Windows and Linux platforms across healthcare, technology, and event services sectors in Asia, Europe, and the US, with ransomware derived from a Linux variant of REvil using AES encryption and multi-threaded file locking.
Threat level
LOW
Get an alert if one of your domains is named on a ransomware leak site.
Indicators of Compromise (IOCs)
IP addresses
2- 185.100.157.74
- 169.254.169.254
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Known infrastructure
The following Tor hidden services have been associated with this group:
BERT
These sites are malicious. Open them only from an isolated environment.
Check if you’re affected
Look up your domain to see whether it appears on Bert’s victim list.
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