Ransomware Research
Zyka Ransomware
Zyka is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Zyka
- First Seen
- January 1, 2017
How Zyka Ransomware Works
File Encryption Patterns
Zyka modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..lockRansom Note and Payment Demands
After encrypting files, Zyka displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
OnceOnCompletionTechnical Indicators
Associated Executable Files
The following executable files are associated with Zyka ransomware:
DO NOT OPEN THE FUCKIN RANSOMWARE.exe
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About This Analysis
This Zyka 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 Zyka.
Last updated: July 30, 2025