Ransomware Research
Tianrui Ransomware
Tianrui is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2025, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Tianrui
- First Seen
- March 1, 2025
How Tianrui Ransomware Works
File Encryption Patterns
Tianrui modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..tianruiRansom Note and Payment Demands
After encrypting files, Tianrui displays ransom notes demanding payment for file recovery:
README.TXTRansom message:
notes/README.TXT
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with Tianrui ransomware:
fxirqlof.exe
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About This Analysis
This Tianrui 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 Tianrui.
Last updated: October 30, 2025
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