Ransomware Research
Japan Ransomware
Japan is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2022, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Japan
- First Seen
- May 1, 2022
How Japan Ransomware Works
File Encryption Patterns
Japan modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..japanRansom Note and Payment Demands
After encrypting files, Japan displays ransom notes demanding payment for file recovery:
how to decrypt.txtRansom message:
notes/how to decrypt.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with Japan ransomware:
svchost.exeJapan.exe
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About This Analysis
This Japan 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 Japan.
Last updated: July 30, 2025