Ransomware Research
Hazard Ransomware
Hazard 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
- Hazard
- First Seen
- October 1, 2023
How Hazard Ransomware Works
File Encryption Patterns
Hazard modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..hazard18Ransom Note and Payment Demands
After encrypting files, Hazard displays ransom notes demanding payment for file recovery:
HOW_TO_BACK_FILES.htmlRansom message:
notes/HOW_TO_BACK_FILES.html
Note locations:
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About This Analysis
This Hazard 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 Hazard.
Last updated: July 30, 2025