Ransomware Research
CryptoMix-x1881 Ransomware
CryptoMix-x1881 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. Security researchers also track this malware under the aliases: x1881.
Quick Facts
- Ransomware Family
- CryptoMix-x1881
- First Seen
- October 1, 2017
- Known Aliases
- x1881
How CryptoMix-x1881 Ransomware Works
Targeted Files
Encrypts filenames magic.mgc -> AF6BF1BA1B14C86208D437EF1F19AC92.x1881
File Encryption Patterns
CryptoMix-x1881 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..x1881Ransom Note and Payment Demands
After encrypting files, CryptoMix-x1881 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-x1881 ransomware:
Ripple1.exe
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About This Analysis
This CryptoMix-x1881 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-x1881.
Last updated: July 30, 2025