Ransomware Research
PyL33T Ransomware
PyL33T is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- PyL33T
- First Seen
- January 1, 2017
How PyL33T Ransomware Works
Targeted Files
Written in Python Requires C&C to receive RSA key
File Encryption Patterns
PyL33T modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..d4nkRansom Note and Payment Demands
After encrypting files, PyL33T displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
OnceOnCompletionTechnical Indicators
Associated Executable Files
The following executable files are associated with PyL33T ransomware:
Zipped File ArchiveZipped.zipRansomware.exeRuntime BrokerBadRansomware.exeRuntime Broker.exe
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About This Analysis
This PyL33T 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 PyL33T.
Last updated: July 30, 2025