Ransomware Research
SanwaiCrypt Ransomware
SanwaiCrypt is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2021, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- SanwaiCrypt
- First Seen
- August 1, 2021
How SanwaiCrypt Ransomware Works
Targeted Files
sample doesn't work properly on some WIN10 machines
File Encryption Patterns
SanwaiCrypt modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..sanwaiRansom Note and Payment Demands
After encrypting files, SanwaiCrypt displays ransom notes demanding payment for file recovery:
IMPORTANT.txtRansom message:
notes/IMPORTANT.txt
Note locations:
EveryFolderIMPORTANT.htmlRansom message:
notes/IMPORTANT.html
Note locations:
TempTechnical Indicators
Associated Executable Files
The following executable files are associated with SanwaiCrypt ransomware:
gerjjkrkjjk33.exe
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About This Analysis
This SanwaiCrypt 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 SanwaiCrypt.
Last updated: July 30, 2025