Ransomware Research

Zilla Ransomware

Zilla is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2017, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
Zilla
First Seen
June 1, 2017

How Zilla Ransomware Works

Targeted Files

Requires C&C to send password

File Encryption Patterns

Zilla modifies encrypted files using specific patterns to mark them as encrypted:

File extensions added after encryption:

..zilla..Atom

Ransom Note and Payment Demands

After encrypting files, Zilla displays ransom notes demanding payment for file recovery:

fileOkuBeni.txt

Ransom message:

notes/OkuBeni.txt

Note locations:

EveryFolder
fileReadMeNow.txt

Ransom message:

notes/ReadMeNow.txt

Note locations:

EveryFolder
file@@BurayaBak.txt

Ransom message:

notes/@@BurayaBak.txt

Note locations:

EveryFolder

Technical Indicators

Associated Executable Files

The following executable files are associated with Zilla ransomware:

  • ConsoleApplication1.exe
  • Zilla.exe
  • JAtom.exe
  • love.exe

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About This Analysis

This Zilla 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 Zilla.

Last updated: July 30, 2025

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