Ransomware Research
FuckTheSystem Ransomware
FuckTheSystem is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- FuckTheSystem
- First Seen
- May 1, 2017
How FuckTheSystem Ransomware Works
File Encryption Patterns
FuckTheSystem modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..anonRansom Note and Payment Demands
After encrypting files, FuckTheSystem displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
OnceOnCompletionTechnical Indicators
Associated Executable Files
The following executable files are associated with FuckTheSystem ransomware:
Crypto.exe
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About This Analysis
This FuckTheSystem 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 FuckTheSystem.
Last updated: July 30, 2025