Ransomware Research
Panther Ransomware
Panther is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2020, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Panther
- First Seen
- June 1, 2020
How Panther Ransomware Works
File Encryption Patterns
Panther modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..pantherRansom Note and Payment Demands
After encrypting files, Panther displays ransom notes demanding payment for file recovery:
LOCKED_README.txtRansom message:
notes/LOCKED_README.txt
Note locations:
EveryFolderRansom message:
notes/LOCKED_README.bmp
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with Panther ransomware:
ransom_subpe.exeransom_loader.vmp.exe
Recovery and Decryption Tools
Good news! Decryption tools are available for Panther ransomware:
0
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About This Analysis
This Panther 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 Panther.
Last updated: July 30, 2025