Ransomware Research

OnyxLocker Ransomware

OnyxLocker is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2019, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
OnyxLocker
First Seen
October 1, 2019

How OnyxLocker Ransomware Works

Targeted Files

Replaces original extensions -> 13-using_powerpoint.ppt -> 13-using_powerpoint.onx

File Encryption Patterns

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

File extensions added after encryption:

..onx

Ransom Note and Payment Demands

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

file/^RECOVERY INSTRUCTIONS [0-9]{1} \.txt$/

Note locations:

Desktop
file/^Read-me!!! [0-9]{1,2} \.txt$/

Ransom message:

notes/Read-me!!! 10 .txt

Note locations:

Desktop
file/^Прочти меня! [0-9]{1} \.txt$/

Ransom message:

notes/Прочти меня! 0 .txt

Note locations:

Desktop

Technical Indicators

Associated Executable Files

The following executable files are associated with OnyxLocker ransomware:

  • goload_1008_1569853988.doc
  • OnyxLocker.exe
  • LTE.exe
  • lte.exe

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About This Analysis

This OnyxLocker 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 OnyxLocker.

Last updated: July 30, 2025

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