Ransomware Research
CryptoMix-Backup Ransomware
CryptoMix-Backup is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2018, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- CryptoMix-Backup
- First Seen
- March 1, 2018
How CryptoMix-Backup Ransomware Works
File Encryption Patterns
CryptoMix-Backup modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..BACKUPRansom Note and Payment Demands
After encrypting files, CryptoMix-Backup displays ransom notes demanding payment for file recovery:
_HELP_INSTRUCTION.TXTRansom message:
notes/_HELP_INSTRUCTION.TXT
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with CryptoMix-Backup ransomware:
backup.exe
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About This Analysis
This CryptoMix-Backup 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 CryptoMix-Backup.
Last updated: July 30, 2025