Ransomware Research
PYAS Ransomware
PYAS is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- PYAS
- First Seen
- February 1, 2023
How PYAS Ransomware Works
File Encryption Patterns
PYAS modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..PYASRansom Note and Payment Demands
After encrypting files, PYAS displays ransom notes demanding payment for file recovery:
README.txtRansom message:
notes/README.txt
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with PYAS ransomware:
PYAS.exe
Recovery and Decryption Tools
Good news! Decryption tools are available for PYAS ransomware:
0
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About This Analysis
This PYAS 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 PYAS.
Last updated: July 30, 2025