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notes/note.txt
Location: OnceOnCompletion
Ransomware Research
C0hen Ransomware
C0hen is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2019, this ransomware has been actively targeting systems worldwide.
Quick facts
- Ransomware Family
- C0hen
- First Seen
- December 1, 2019
How C0hen ransomware works
File modification behavior
C0hen updates file modification timestamps after encryption.
File encryption patterns
C0hen modifies encrypted files using specific patterns to mark them as encrypted:
Extensions added after encryption
- .c0hen
Ransom note and payment demands
After encrypting files, C0hen displays ransom notes demanding payment for file recovery:
Technical indicators
Associated executable files
The following executable files are associated with C0hen ransomware:
- c0hen locker.exe
About this analysis
This C0hen ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like C0hen.
Detection coverage
Elastio detects C0hen inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify C0hen across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a hunt against your recovery points to confirm.