Ransomware Research
Anti-us Ransomware
Anti-us is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Anti-us
- First Seen
- June 1, 2023
How Anti-us Ransomware Works
Targeted Files
Base-64 encoded contents
File Encryption Patterns
Anti-us modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..anti-usRansom Note and Payment Demands
After encrypting files, Anti-us displays ransom notes demanding payment for file recovery:
read-itRansom message:
notes/read-it
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with Anti-us ransomware:
rufus-3.22.exe834946267a02b3a15d426efe1.exeupdate1.exe
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About This Analysis
This Anti-us 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 Anti-us.
Last updated: July 30, 2025