Ransomware Research
ITSA Ransomware
ITSA is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2025, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- ITSA
- First Seen
- May 1, 2025
How ITSA Ransomware Works
File Encryption Patterns
ITSA modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..itsaRansom Note and Payment Demands
After encrypting files, ITSA displays ransom notes demanding payment for file recovery:
Decryption Instructions.txtRansom message:
notes/Decryption Instructions.txt
Note locations:
EveryFolderElastio Can Help You
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About This Analysis
This ITSA 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 ITSA.
Last updated: July 30, 2025