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..mf8y3

Ransom Note and Payment Demands

After encrypting files, X3M displays ransom notes demanding payment for file recovery:

file### HOW TO DECRYPT FILES ###.html

Ransom message:

notes/### HOW TO DECRYPT FILES ###.html

Note locations:

EveryFolder
fileDECRYPT MY FILE.txt

Ransom message:

notes/DECRYPT MY FILE.txt
file!!! DECRYPT MY FILES !!!.txt

Ransom message:

notes/!!! DECRYPT MY FILES !!!.txt

Note locations:

EveryFolder

Technical Indicators

Associated Executable Files

The following executable files are associated with X3M ransomware:

  • x3m.bin
  • svchost.exe
  • Ran.x3m.exe

Elastio Can Help You

Don't let X3M ransomware take over your data

Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.

Learn MoreRequest a Demo

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

Recent Ransomware

Explore other threats in our database

View all ransomware