Ransomware Research
Annoy Ransomware
Annoy 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
- Annoy
- First Seen
- October 1, 2024
How Annoy Ransomware Works
Targeted Files
Full extension -> .{7F7682D6-21A9-1F51-BAAA-BCC19668745C}.annoy
File Encryption Patterns
Annoy modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..annoyRansom Note and Payment Demands
After encrypting files, Annoy displays ransom notes demanding payment for file recovery:
README.TXTRansom message:
notes/README.TXT
Note locations:
EveryFolderElastio Can Help You
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About This Analysis
This Annoy 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 Annoy.
Last updated: July 30, 2025