Ransomware Research

ADMON Ransomware

ADMON is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2023, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
ADMON
First Seen
May 1, 2023

How ADMON ransomware works

File encryption patterns

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

Extensions added after encryption
.ADMON

Ransom note and payment demands

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

fileRESTORE_FILES_INFO.txt
notes/RESTORE_FILES_INFO.txt
Location: Desktop, Temp

Technical indicators

Associated executable files

The following executable files are associated with ADMON ransomware:

About this analysis

This ADMON 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 ADMON.

Last updated: December 30, 2025

Detection coverage

Elastio detects ADMON inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify ADMON 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.

See How the Hunt Engine WorksRequest a Demo

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