Ransomware Research
B-Panther Ransomware
B-Panther is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- B-Panther
- First Seen
- September 1, 2023
How B-Panther Ransomware Works
Targeted Files
Ransom note written in Portuguese
File Encryption Patterns
B-Panther modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..B-PantherRansom Note and Payment Demands
After encrypting files, B-Panther displays ransom notes demanding payment for file recovery:
HOW TO DECRYPT FILES.txtRansom message:
notes/HOW TO DECRYPT FILES.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with B-Panther ransomware:
RmmwbOJ5aO6Z33A.exe
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About This Analysis
This B-Panther 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 B-Panther.
Last updated: July 30, 2025