Ransomware Research
Tortoise Ransomware
Tortoise is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2021, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Tortoise
- First Seen
- February 1, 2021
How Tortoise Ransomware Works
Targeted Files
Written in Python 3.6 (PyInstaller) Encrypts first 1 Mb
File Encryption Patterns
Tortoise modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..TORTOISERansom Note and Payment Demands
After encrypting files, Tortoise displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
OnceOnCompletionTechnical Indicators
Associated Executable Files
The following executable files are associated with Tortoise ransomware:
tort2.exea.exe123.exeRansomware Tortoise.exe
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About This Analysis
This Tortoise 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 Tortoise.
Last updated: July 30, 2025