Ransomware Research
UwU Ransomware
UwU is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2024, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- UwU
- First Seen
- November 1, 2024
How UwU Ransomware Works
File Encryption Patterns
UwU modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..MOONMANRansom Note and Payment Demands
After encrypting files, UwU displays ransom notes demanding payment for file recovery:
READTHISNOW.txtRansom message:
notes/READTHISNOW.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with UwU ransomware:
Windows.exe
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About This Analysis
This UwU 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 UwU.
Last updated: July 30, 2025