Ransomware Research
Hyj Ransomware
Hyj is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Hyj
- First Seen
- October 1, 2023
How Hyj Ransomware Works
File Encryption Patterns
Hyj modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..hyjRansom Note and Payment Demands
After encrypting files, Hyj displays ransom notes demanding payment for file recovery:
КАК РАСШИФРОВАТЬ ФАЙЛЫ.txtRansom message:
notes/КАК РАСШИФРОВАТЬ ФАЙЛЫ.txt
Note locations:
EveryFolderElastio Can Help You
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About This Analysis
This Hyj 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 Hyj.
Last updated: July 30, 2025