Ransomware Research
Java NotDharma Ransomware
Java NotDharma is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on April 1, 2018, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Java NotDharma
- First Seen
- April 1, 2018
How Java NotDharma Ransomware Works
Targeted Files
Uses tcp sockets to communicate with C&C https://www.bleepingcomputer.com/forums/t/675417/java-notdharma-java-extension;-decrypt-instructionstxt/page-2
File Encryption Patterns
Java NotDharma modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..javaRansom Note and Payment Demands
After encrypting files, Java NotDharma displays ransom notes demanding payment for file recovery:
Decrypt Instructions.txtRansom message:
notes/Decrypt Instructions.txt
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About This Analysis
This Java NotDharma 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 Java NotDharma.
Last updated: July 30, 2025