Ransomware Research
CryptGh0st Ransomware
CryptGh0st is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- CryptGh0st
- First Seen
- March 1, 2017
How CryptGh0st Ransomware Works
Targeted Files
Files renamed with base64 Fake (doesn't encrypt files)
File Encryption Patterns
CryptGh0st modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..cryptgh0st..FileEncrypted..kvllyatprotonmaildotch..rencryptedRansom Note and Payment Demands
After encrypting files, CryptGh0st displays ransom notes demanding payment for file recovery:
READ_TO_DECRYPT.htmlRansom message:
notes/READ_TO_DECRYPT.html
Technical Indicators
Associated Executable Files
The following executable files are associated with CryptGh0st ransomware:
ransomware.exe
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About This Analysis
This CryptGh0st 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 CryptGh0st.
Last updated: July 30, 2025