Ransomware Research
Ziver Ransomware
Ziver is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2025, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Ziver
- First Seen
- July 1, 2025
How Ziver Ransomware Works
File Encryption Patterns
Ziver modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..ziverRansom Note and Payment Demands
After encrypting files, Ziver displays ransom notes demanding payment for file recovery:
+README-WARNING+.txtRansom message:
notes/+README-WARNING+.txt
Note locations:
EveryFolderRansom message:
notes/2C66.tmp.png
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with Ziver ransomware:
ziver_visual.exe
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About This Analysis
This Ziver 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 Ziver.
Last updated: July 30, 2025