Ransomware Research

ZENEX Ransomware

ZENEX is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2024, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
ZENEX
First Seen
February 1, 2024

How ZENEX Ransomware Works

File Encryption Patterns

ZENEX modifies encrypted files using specific patterns to mark them as encrypted:

File extensions added after encryption:

..ZENEX

Ransom Note and Payment Demands

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

file#Zenex-Help.txt

Ransom message:

notes/#Zenex-Help.txt

Note locations:

EveryFolder
screenshot

Ransom message:

notes/BB0464F7E92B832596A76EF03D527698.bmp

Note locations:

Desktop

Technical Indicators

Associated Executable Files

The following executable files are associated with ZENEX ransomware:

  • BD30FF44EF5C225496A76EF03D527698.exe
  • D997A6BB89E365E296A76EF03D527698.exe

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About This Analysis

This ZENEX 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 ZENEX.

Last updated: July 30, 2025

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