RansomwareUnknown
Bert
Bert is a ransomware group, tracked by Brandefense. It targets the Business Services sector in the United States and Malaysia.
- Techniques
- 0
- Exploited CVEs
- No CVE data
- Record updated
Who They Target.
Sectors · 1
Countries · 2
About 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.
Last updated Sep 29, 2026. Compiled by Brandefense technologies from structured threat intelligence and reviewed by Brandefense analysts. Techniques follow the MITRE ATT&CK framework.