Ransomware Research

AgentX Ransomware

AgentX is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2025, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
AgentX
First Seen
December 1, 2025

How AgentX ransomware works

File modification behavior

AgentX updates file modification timestamps after encryption.

File encryption patterns

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

Extensions added after encryption
  • .agent

Ransom note and payment demands

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

fileRECOVER_YOUR_FILES.txt
notes/RECOVER_YOUR_FILES.txt

Location: UserFolders

Technical indicators

Associated executable files

The following executable files are associated with AgentX ransomware:

  • g7id2so.exe
  • nmc3nwjm.exe
  • polymorphic_agent.exe

About this analysis

This AgentX 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 AgentX.

Last updated: February 18, 2026

Detection coverage

Elastio detects AgentX inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify AgentX across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a hunt against your recovery points to confirm.