Ransomware Research

InfinityLock Ransomware

InfinityLock 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. Security researchers also track this malware under the aliases: InfinityCrypt.

Quick Facts

Ransomware Family
InfinityLock
First Seen
September 1, 2017
Known Aliases
InfinityCrypt

How InfinityLock Ransomware Works

File Encryption Patterns

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

File extensions added after encryption:

./\.[A-F0-9]{64}$/

Ransom Note and Payment Demands

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

fileInfinityLock_Recover_Instructions.txt

Ransom message:

notes/InfinityLock_Recover_Instructions.txt

Note locations:

Desktop
message

Ransom message:

notes/note.txt

Note locations:

OnceOnCompletion
screenshot

Ransom message:

notes/InfinityLock_Recover_Instructions.png

Note locations:

Desktop

Technical Indicators

Associated Executable Files

The following executable files are associated with InfinityLock ransomware:

  • PremiereCrack.exe
  • samples_05_10_2017 (67)
  • Endermanch@InfinityCrypt.exe
  • GOOD (4).EXE
  • Ransomware.InfinityCrypt.exe
  • EndermanchInfinityCrypt.exe
  • InfinityCrypt.exe
  • kazik last by stef.exe
  • InfinityLock.exe
  • binary
  • freevbucks.exe
  • endermanch@infinitycrypt.exe
  • EndermanchInfinityCrypt[1].exe
  • shrek game 2 leak not premier pro or virus.exe
  • Ransomware InfinityCrypt.exe
  • ran5.exe
  • tmpp7mkkfbj
  • Infinite.exe
  • infinite.exe
  • 692.json
  • RansomWin32Crystalcrypt.A.exe
  • Sqyousi.exe
  • file.exe
  • Infinity.exe

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About This Analysis

This InfinityLock 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 InfinityLock.

Last updated: October 30, 2025

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