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
File Encryption Patterns
Ordinal modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..OrdinalRansom Note and Payment Demands
After encrypting files, Ordinal displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
LoginTechnical 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: October 30, 2025
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