Ransomware Research
FSociety Ransomware
FSociety is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2016, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- FSociety
- First Seen
- August 1, 2016
How FSociety Ransomware Works
Targeted Files
Requires C&C to receive keys
File Encryption Patterns
FSociety modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..lockedRansom Note and Payment Demands
After encrypting files, FSociety displays ransom notes demanding payment for file recovery:
Ransom message:
notes/PNZaSrX.jpg
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with FSociety ransomware:
eda2.exefsociety.exe
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About This Analysis
This FSociety 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 FSociety.
Last updated: July 30, 2025