Ransomware Research
ZFX Ransomware
ZFX is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- ZFX
- First Seen
- January 1, 2023
How ZFX Ransomware Works
File Encryption Patterns
ZFX modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..ZFXRansom Note and Payment Demands
After encrypting files, ZFX displays ransom notes demanding payment for file recovery:
+README-WARNING+.txtRansom message:
notes/+README-WARNING+.txt
Note locations:
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About This Analysis
This ZFX 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 ZFX.
Last updated: July 30, 2025