M142 HIMARS Ransomware
M142 HIMARS is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2025, this ransomware has been actively targeting systems worldwide.
Quick facts
How M142 HIMARS ransomware works
File encryption patterns
M142 HIMARS modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, M142 HIMARS displays ransom notes demanding payment for file recovery:
notes/READ_NOTE.html
notes/output.png
Technical indicators
Associated executable files
The following executable files are associated with M142 HIMARS ransomware:
- !!!m142.zip
- M142.exe
About this analysis
This M142 HIMARS ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like M142 HIMARS.
Last updated: December 30, 2025
Elastio detects M142 HIMARS inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify M142 HIMARS across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a scan against your recovery points to confirm.
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