PyLocky Ransomware
PyLocky is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2018, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: LockyLocker.
Quick facts
How PyLocky ransomware works
File encryption patterns
PyLocky modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, PyLocky displays ransom notes demanding payment for file recovery:
notes/LOCKY-README.txt
notes/LOCKY-README.txt
Technical indicators
Associated executable files
The following executable files are associated with PyLocky ransomware:
- PyLocky.exe
- Facture_25.07.2018_991030.exe
- 652fd0ab346d99a3d436157d04b8f3657b49c90b
- pythonSigned.exe
- BulBa Setup.exe
- facture_4739149_08.26.2018.exe
- Pylocky.exe
- rsa.exe
- myfile.exe
- PyRan Ver2.exe
- locky.exe
- zbetcheckin_tracker_rsa.exe
Recovery and decryption tools
Decryption tools may be available for PyLocky. Review the resources below:
About this analysis
This PyLocky ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like PyLocky.
Last updated: December 30, 2025
Elastio detects PyLocky inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify PyLocky across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a scan against your recovery points to confirm.
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