Ransomware Research
AnonFive Ransomware
AnonFive is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: D3vilH0rn.
Quick Facts
- Ransomware Family
- AnonFive
- First Seen
- March 1, 2017
- Known Aliases
- D3vilH0rn
How AnonFive Ransomware Works
Targeted Files
Test sample (encrypt test folder on the Desktop)
File Encryption Patterns
AnonFive modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..anonfiveRansom Note and Payment Demands
After encrypting files, AnonFive displays ransom notes demanding payment for file recovery:
READ_IT.txtRansom message:
notes/READ_IT.txt
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with AnonFive ransomware:
hidden-tear.exekey.rsa
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About This Analysis
This AnonFive 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 AnonFive.
Last updated: July 30, 2025