Ransomware Research
MonaLisa Ransomware
MonaLisa is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2022, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- MonaLisa
- First Seen
- February 1, 2022
How MonaLisa Ransomware Works
File Encryption Patterns
MonaLisa modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..barrel..nekochanRansom Note and Payment Demands
After encrypting files, MonaLisa displays ransom notes demanding payment for file recovery:
info.txtRansom message:
notes/info.txt
Note locations:
Desktopinfo.htaRansom message:
notes/info.hta
Note locations:
StartUpTechnical Indicators
Associated Executable Files
The following executable files are associated with MonaLisa ransomware:
3.exe4.exesetup_55612.exe
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About This Analysis
This MonaLisa 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 MonaLisa.
Last updated: July 30, 2025