Ransomware Research
AnonTsugumi Ransomware
AnonTsugumi is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- AnonTsugumi
- First Seen
- September 1, 2023
How AnonTsugumi Ransomware Works
File Encryption Patterns
AnonTsugumi modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..anontsugumiRansom Note and Payment Demands
After encrypting files, AnonTsugumi displays ransom notes demanding payment for file recovery:
README.txtRansom message:
notes/README.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with AnonTsugumi ransomware:
anon.exesvchost.exeJJoIMcbu9pOmnpU.exe
Elastio Can Help You
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About This Analysis
This AnonTsugumi 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 AnonTsugumi.
Last updated: July 30, 2025