Ransomware Research
SHTORM Ransomware
SHTORM is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- SHTORM
- First Seen
- February 1, 2023
How SHTORM Ransomware Works
Targeted Files
Full extension -> .id[C63F241F-3351].[mjk20@tutanota.com].SHTORM
File Encryption Patterns
SHTORM modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..SHTORM
Ransom Note and Payment Demands
After encrypting files, SHTORM displays ransom notes demanding payment for file recovery:
info.txt
Ransom message:
notes/info.txt
Note locations:
RootDiscs
Desktop
info.hta
Ransom message:
notes/info.hta
Note locations:
RootDiscs
Desktop
Technical Indicators
Associated Executable Files
The following executable files are associated with SHTORM ransomware:
SHTORM
executable.exe
AntiR.exe
Elastio Can Help You
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About This Analysis
This SHTORM 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 SHTORM.
Last updated: July 30, 2025