Ransomware Research
Zenis Ransomware
Zenis is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2018, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Zenis
- First Seen
- March 1, 2018
How Zenis Ransomware Works
Targeted Files
9730e03ca9d052875895b4ad7ba7914f69009fd5fb58d324ee35d3e45f90d768 -> should be named iis_agent32.exe Changes encrypted filenames by template ^Zenis-[\w]{2}\.\w{12}$
Ransom Note and Payment Demands
After encrypting files, Zenis displays ransom notes demanding payment for file recovery:
Zenis-Instructions.htmlRansom message:
notes/Zenis-Instructions.html
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with Zenis ransomware:
IIS_Agent32.exeZenis.exe97.exe
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About This Analysis
This Zenis 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 Zenis.
Last updated: July 30, 2025