Ransomware Research
Zsszyy Ransomware
Zsszyy is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2025, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Zsszyy
- First Seen
- March 1, 2025
How Zsszyy Ransomware Works
Targeted Files
0bf91eba6d40137e17ade8bfa49c39d606c2453233e35e022e5293878ca0f6f6 -> for linux ESXI Full extension -> .{A4EDA8CF-78F3-ADF1-914B-5F2CBAAA094E}.zsszyy
File Encryption Patterns
Zsszyy modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..zsszyyRansom Note and Payment Demands
After encrypting files, Zsszyy 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 Zsszyy ransomware:
encrypter.7zencrypter-linux-esxi-x64.runbnsnsilm.exeencrypter-windows-gui-x86.exe
Elastio Can Help You
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About This Analysis
This Zsszyy 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 Zsszyy.
Last updated: July 30, 2025