Ransomware Research
Trigona Ransomware
Trigona is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Trigona
- First Seen
- January 1, 2023
How Trigona Ransomware Works
Targeted Files
https://www.zscaler.com/blogs/security-research/technical-analysis-trigona-ransomware
File Encryption Patterns
Trigona modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
.._lockedPrefixes added to encrypted files:
available_for_trial.Ransom Note and Payment Demands
After encrypting files, Trigona displays ransom notes demanding payment for file recovery:
how_to_decrypt.htaRansom message:
notes/how_to_decrypt.hta
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with Trigona ransomware:
bb.exe
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About This Analysis
This Trigona 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 Trigona.
Last updated: July 30, 2025