Ransomware Research
PyPayroll Ransomware
PyPayroll is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2021, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- PyPayroll
- First Seen
- November 1, 2021
How PyPayroll Ransomware Works
Targeted Files
Written in Python 3.10 (PyInstaller) needs access to C&C 198.18.103.21
Ransom Note and Payment Demands
After encrypting files, PyPayroll 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 PyPayroll ransomware:
$RLDCHN0.exePayroll_2021.exe
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About This Analysis
This PyPayroll 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 PyPayroll.
Last updated: July 30, 2025