Ransomware Research

MIRROR Ransomware

MIRROR 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
MIRROR
First Seen
February 1, 2024

How MIRROR Ransomware Works

File Encryption Patterns

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

File extensions added after encryption:

..Mr

Ransom Note and Payment Demands

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

fileinfo-MIRROR.txt

Ransom message:

notes/info-MIRROR.txt

Note locations:

RootDirectoryDesktop
fileInfo.hta

Ransom message:

notes/Info.hta

Note locations:

StartUpRoaming

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About This Analysis

This MIRROR 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 MIRROR.

Last updated: October 30, 2025

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