Ransomware Research
Strix Ransomware
Strix is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Null.
Quick Facts
- Ransomware Family
- Strix
- First Seen
- August 1, 2017
- Known Aliases
- Null
How Strix Ransomware Works
Targeted Files
Thers is placeholder for READ_THIS!!!.txt note on the Desktop but not used
File Encryption Patterns
Strix modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..nullRansom Note and Payment Demands
After encrypting files, Strix 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 Strix ransomware:
strix.exe
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About This Analysis
This Strix 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 Strix.
Last updated: July 30, 2025