Ransomware Research
Retch Ransomware
Retch is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Retch
- First Seen
- August 1, 2023
How Retch Ransomware Works
File Encryption Patterns
Retch modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..RetchRansom Note and Payment Demands
After encrypting files, Retch displays ransom notes demanding payment for file recovery:
HOW TO RECOVER YOUR FILES.txtRansom message:
notes/HOW TO RECOVER YOUR FILES.txt
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with Retch ransomware:
teste25.exe
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About This Analysis
This Retch 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 Retch.
Last updated: July 30, 2025