Ransomware Research

ShellLocker Ransomware

ShellLocker is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2016, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
ShellLocker
First Seen
November 1, 2016

How ShellLocker Ransomware Works

Targeted Files

https://www.hybrid-analysis.com/sample/5e27ab7ef30ea964c8c2c72c3af1de46899c83cb8756a5be12dc6a3d6d34d913?environmentId=100 #TEAM-UINA on the lockscreen (maybe discord contact) Random filenames -> o83A=$.L0cked 3=yeoen0I.x0lzs3c

File Encryption Patterns

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

File extensions added after encryption:

..L0cked..x0lzs3c

Ransom Note and Payment Demands

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

screenshot

Ransom message:

notes/BackgroundImage.jpeg

Note locations:

Desktop
message

Ransom message:

notes/note.txt

Note locations:

Login

Technical Indicators

Associated Executable Files

The following executable files are associated with ShellLocker ransomware:

  • Document.exe
  • svchost.exe
  • RiFHLKNIxz
  • Documents.cmd
  • Shell.exe
  • ShellLocker.exe
  • aadh.exe
  • ShellLocker..exe
  • MicrosoftGenuineAdvantage.exe
  • VBRansomware.exe
  • Ohayo.exe

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About This Analysis

This ShellLocker 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 ShellLocker.

Last updated: July 30, 2025

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