Ransomware Research
The Brotherhood Ransomware
The Brotherhood is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2018, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- The Brotherhood
- First Seen
- June 1, 2018
How The Brotherhood Ransomware Works
Targeted Files
https://app.any.run/tasks/9e8d1a22-b942-4dc5-a9b0-7b186faeab1f/# Encrypts Documents folder only
File Encryption Patterns
The Brotherhood modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..ransomcryptRansom Note and Payment Demands
After encrypting files, The Brotherhood displays ransom notes demanding payment for file recovery:
Ransom message:
notes/RansomNote.jpg
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with The Brotherhood ransomware:
RansomWare.exe
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About This Analysis
This The Brotherhood 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 The Brotherhood.
Last updated: July 30, 2025