Ransomware Research
PyWindowsHelper Ransomware
PyWindowsHelper is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2025, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- PyWindowsHelper
- First Seen
- June 1, 2025
How PyWindowsHelper Ransomware Works
Targeted Files
PyInstaller (Python 3.13) Ransom note and target folder ->Windows/System32/
File Encryption Patterns
PyWindowsHelper modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..encRansom Note and Payment Demands
After encrypting files, PyWindowsHelper displays ransom notes demanding payment for file recovery:
ransom_note.txtRansom message:
notes/ransom_note.txt
Technical Indicators
Associated Executable Files
The following executable files are associated with PyWindowsHelper ransomware:
main.exe
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About This Analysis
This PyWindowsHelper 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 PyWindowsHelper.
Last updated: September 30, 2025
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