Ransomware Research

Alcatraz Locker Ransomware

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

Quick Facts

Ransomware Family
Alcatraz Locker
First Seen
October 1, 2016

How Alcatraz Locker Ransomware Works

Targeted Files

Base-64 encoded content

File Encryption Patterns

Alcatraz Locker modifies encrypted files using specific patterns to mark them as encrypted:

File extensions added after encryption:

..Alcatraz

Ransom Note and Payment Demands

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

fileransomed.html

Ransom message:

notes/ransomed.html

Note locations:

Desktop

Technical Indicators

Associated Executable Files

The following executable files are associated with Alcatraz Locker ransomware:

  • AlcatrazLocker
  • demo01.exe
  • alcatraz.exe
  • c5kvE3yL2I
  • Ransomware.exe
  • ransomware (20).exe
  • aa
  • wBERn.xlt

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About This Analysis

This Alcatraz Locker 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 Alcatraz Locker.

Last updated: July 30, 2025

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