Ransomware Research
Fun Ransomware
Fun 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
- Fun
- First Seen
- December 1, 2023
How Fun Ransomware Works
File Encryption Patterns
Fun modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..funny
Ransom Note and Payment Demands
After encrypting files, Fun displays ransom notes demanding payment for file recovery:
readme.txt
Ransom message:
notes/readme.txt
Note locations:
EveryFolder
Ransom message:
notes/pflt8bq46.jpg
Note locations:
Desktop
Technical Indicators
Associated Executable Files
The following executable files are associated with Fun ransomware:
ransom.fun.exe
20231208bea34c8a69222a2780cefa45263eba5bwannacry.exe
svchost.exe
Elastio Can Help You
Don't let Fun ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This Fun 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 Fun.
Last updated: July 30, 2025