Ransomware Research
Cipher Ransomware
Cipher is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2024, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Cipher
- First Seen
- September 1, 2024
How Cipher Ransomware Works
File Encryption Patterns
Cipher modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..cipherRansom Note and Payment Demands
After encrypting files, Cipher displays ransom notes demanding payment for file recovery:
#Read-for-recovery.txtRansom message:
notes/#Read-for-recovery.txt
Note locations:
EveryFolderRansom message:
notes/wp.png
Note locations:
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About This Analysis
This Cipher 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 Cipher.
Last updated: July 30, 2025