Ransomware Research
JosepCrypt Ransomware
JosepCrypt is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2018, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- JosepCrypt
- First Seen
- May 1, 2018
How JosepCrypt Ransomware Works
Targeted Files
Encrypts first 1024 kb
File Encryption Patterns
JosepCrypt modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..josep..karneRansom Note and Payment Demands
After encrypting files, JosepCrypt displays ransom notes demanding payment for file recovery:
RECOVERY.txtRansom message:
notes/RECOVERY.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with JosepCrypt ransomware:
JoseptCrypt.exeJosepCrypt.exedrweb32.exeJosepCrypt Ransomware.exe
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About This Analysis
This JosepCrypt 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 JosepCrypt.
Last updated: July 30, 2025