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