Ransomware Research

ApolloLocker Ransomware

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

Quick Facts

Ransomware Family
ApolloLocker
First Seen
September 1, 2017

How ApolloLocker Ransomware Works

File Encryption Patterns

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

File extensions added after encryption:

..locked

Ransom Note and Payment Demands

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

file/^DOSYALARI-KURTAR [0-2{1}]\.txt$/

Ransom message:

notes/DOSYALARI-KURTAR 0.txt

Note locations:

Desktop
file/^DOSYALARI-KURTAR [0-2{1}]\.url$/

Ransom message:

notes/DOSYALARI-KURTAR 0.url

Note locations:

Desktop

Technical Indicators

Associated Executable Files

The following executable files are associated with ApolloLocker ransomware:

  • ApolloLocker.exe
  • 1.exe

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About This Analysis

This ApolloLocker 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 ApolloLocker.

Last updated: July 30, 2025

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