Ransomware Research
CryptoDemo Ransomware
CryptoDemo is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- CryptoDemo
- First Seen
- October 1, 2017
How CryptoDemo Ransomware Works
Targeted Files
Encrypts C:\\Demo\\Crypt only
File Encryption Patterns
CryptoDemo modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..encryptedRansom Note and Payment Demands
After encrypting files, CryptoDemo displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
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About This Analysis
This CryptoDemo 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 CryptoDemo.
Last updated: July 30, 2025