Ransomware Research
Crypto Ransomware
Crypto is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Crypto
- First Seen
- October 1, 2023
How Crypto Ransomware Works
File Encryption Patterns
Crypto modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..crypto1317Ransom Note and Payment Demands
After encrypting files, Crypto displays ransom notes demanding payment for file recovery:
How_to_back_files.htmlRansom message:
notes/How_to_back_files.html
Note locations:
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About This Analysis
This Crypto 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 Crypto.
Last updated: July 30, 2025