Ransomware Research
CryptoMix-Error Ransomware
CryptoMix-Error is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Error.
Quick Facts
- Ransomware Family
- CryptoMix-Error
- First Seen
- August 1, 2017
- Known Aliases
- Error
How CryptoMix-Error Ransomware Works
Targeted Files
Encrypts filenames -> magic.mgc -> B568618D045C0645F0982A1507A0E9E5.EMPTY
File Encryption Patterns
CryptoMix-Error modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..ERRORRansom Note and Payment Demands
After encrypting files, CryptoMix-Error 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-Error ransomware:
Golf
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About This Analysis
This CryptoMix-Error 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-Error.
Last updated: July 30, 2025