BitPyLock Ransomware
BitPyLock is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2018, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: BitPyLock Doxware.
Quick facts
How BitPyLock ransomware works
File encryption patterns
BitPyLock modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, BitPyLock displays ransom notes demanding payment for file recovery:
notes/# HELP_TO_DECRYPT_YOUR_FILES #.html
Technical indicators
Associated executable files
The following executable files are associated with BitPyLock ransomware:
- out
- Program.exe
- 274011aaa97fd1.exe
- Network.exe
- agent.exe
- easy.exe
About this analysis
This BitPyLock 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 BitPyLock.
Last updated: December 30, 2025
Elastio detects BitPyLock inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify BitPyLock 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.
Recent ransomware
Explore other threats in our database