Ransomware Research

Meduza24 Ransomware

Meduza24 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2023, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
Meduza24
First Seen
September 1, 2023

How Meduza24 ransomware works

File encryption patterns

Meduza24 modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.meduza24

Ransom note and payment demands

After encrypting files, Meduza24 displays ransom notes demanding payment for file recovery:

fileHow_to_back_files.html
notes/How_to_back_files.html
Location: EveryFolder

About this analysis

This Meduza24 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 Meduza24.

Last updated: December 30, 2025

Detection coverage

Elastio detects Meduza24 inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Meduza24 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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