Ransomware Research
Crypt38 Ransomware
Crypt38 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2016, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Crypt38
- First Seen
- June 1, 2016
How Crypt38 Ransomware Works
File Encryption Patterns
Crypt38 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..crypt38Ransom Note and Payment Demands
After encrypting files, Crypt38 displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
LoginTechnical Indicators
Associated Executable Files
The following executable files are associated with Crypt38 ransomware:
1.exe___.doc.exe
Recovery and Decryption Tools
Good news! Decryption tools are available for Crypt38 ransomware:
0
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About This Analysis
This Crypt38 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 Crypt38.
Last updated: July 30, 2025