Ransomware Research
PyLock Ransomware
PyLock is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2019, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: PyCrypter.
Quick Facts
- Ransomware Family
- PyLock
- First Seen
- September 1, 2019
- Known Aliases
- PyCrypter
How PyLock Ransomware Works
Targeted Files
Written in Python (PyInstaller)
File Encryption Patterns
PyLock modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..lockedRansom Note and Payment Demands
After encrypting files, PyLock displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
LoginTechnical Indicators
Associated Executable Files
The following executable files are associated with PyLock ransomware:
10.exe
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About This Analysis
This PyLock 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 PyLock.
Last updated: July 30, 2025