Ransomware Research
BaN Ransomware
BaN is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- BaN
- First Seen
- December 1, 2023
How BaN Ransomware Works
File Encryption Patterns
BaN modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..BaNRansom Note and Payment Demands
After encrypting files, BaN displays ransom notes demanding payment for file recovery:
HOW TO DECRYPT FILES.txtRansom message:
notes/HOW TO DECRYPT FILES.txt
Note locations:
EveryFolderRansom message:
notes/note.txt
Note locations:
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About This Analysis
This BaN ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like BaN.
Last updated: July 30, 2025