Ransomware Research
Basilisque Ransomware
Basilisque is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2019, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Basilisque
- First Seen
- July 1, 2019
How Basilisque Ransomware Works
Targeted Files
NOSAMPLE
File Encryption Patterns
Basilisque modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..basilisque@protonmail_comRansom Note and Payment Demands
After encrypting files, Basilisque displays ransom notes demanding payment for file recovery:
HOW_TO_DECRYPT.txtRansom message:
notes/HOW_TO_DECRYPT.txt
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About This Analysis
This Basilisque 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 Basilisque.
Last updated: July 30, 2025