Ransomware Research
Root4 Ransomware
Root4 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2024, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Root4
- First Seen
- October 1, 2024
How Root4 Ransomware Works
File Encryption Patterns
Root4 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..root4Ransom Note and Payment Demands
After encrypting files, Root4 displays ransom notes demanding payment for file recovery:
How_to_back_files.htmlRansom message:
notes/How_to_back_files.html
Note locations:
DesktopRootDiscsElastio Can Help You
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About This Analysis
This Root4 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 Root4.
Last updated: July 30, 2025