Ransomware Research

Motocos Ransomware

Motocos is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2021, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
Motocos
First Seen
May 1, 2021

How Motocos Ransomware Works

Targeted Files

need access to network contains anti-vm (sleep 60sec)

File Encryption Patterns

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

File extensions added after encryption:

..mo2

Ransom Note and Payment Demands

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

fileReadme.txt

Ransom message:

notes/Readme.txt

Note locations:

RootDiscsDesktop
fileMotocos_Readme.txt

Ransom message:

notes/Motocos_Readme.txt

Note locations:

RootDiscsDesktop
fileRansomware_Readme.txt

Ransom message:

notes/Ransomware_Readme.txt

Note locations:

RootDiscsDesktop

Technical Indicators

Associated Executable Files

The following executable files are associated with Motocos ransomware:

  • taskhos.exe

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About This Analysis

This Motocos 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 Motocos.

Last updated: July 30, 2025

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