Ransomware Research
CrazyHunter Ransomware
CrazyHunter 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
- CrazyHunter
- First Seen
- April 1, 2025
How CrazyHunter Ransomware Works
File Encryption Patterns
CrazyHunter modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..Hunted3Ransom Note and Payment Demands
After encrypting files, CrazyHunter displays ransom notes demanding payment for file recovery:
Decryption Instructions.txtRansom message:
notes/Decryption Instructions.txt
Note locations:
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About This Analysis
This CrazyHunter 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 CrazyHunter.
Last updated: July 30, 2025