Ransomware Research
X3M Ransomware
X3M is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- X3M
- First Seen
- March 1, 2017
How X3M Ransomware Works
Targeted Files
Full extension -> .id-1931379070_[contact-support@elude.in].firex3m https://www.bleepingcomputer.com/forums/t/635859/crypton-ransomware-support-help-topic-id-number-x3m-locked-r9oj/page-9 https://app.any.run/tasks/e89228c1-3dac-42bc-a2df-2802769fdc91/#
File Encryption Patterns
X3M modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..x3m..firex3m..mf8y3Ransom Note and Payment Demands
After encrypting files, X3M displays ransom notes demanding payment for file recovery:
### HOW TO DECRYPT FILES ###.htmlRansom message:
notes/### HOW TO DECRYPT FILES ###.html
Note locations:
EveryFolderDECRYPT MY FILE.txtRansom message:
notes/DECRYPT MY FILE.txt
!!! DECRYPT MY FILES !!!.txtRansom message:
notes/!!! DECRYPT MY FILES !!!.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with X3M ransomware:
x3m.binsvchost.exeRan.x3m.exe
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About This Analysis
This X3M 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 X3M.
Last updated: July 30, 2025