Ransomware Research

Ordinal Ransomware

Ordinal is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2017, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
Ordinal
First Seen
October 1, 2017

How Ordinal Ransomware Works

Targeted Files

Should create "READ Me To Get Your Files Back.txt.Ordinal" on the Desktop but contains error in code Contains anti-debug, anti-vm, anti-emulation

File Encryption Patterns

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

File extensions added after encryption:

..Ordinal

Ransom Note and Payment Demands

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

message

Ransom message:

notes/note.txt

Note locations:

Login

Technical Indicators

Associated Executable Files

The following executable files are associated with Ordinal ransomware:

  • Main.exe

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About This Analysis

This Ordinal 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 Ordinal.

Last updated: July 30, 2025