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