Ransomware Research

BigEyes Ransomware

BigEyes is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2018, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: LimeDecryptor.

Quick Facts

Ransomware Family
BigEyes
First Seen
January 1, 2018
Known Aliases
LimeDecryptor

How BigEyes Ransomware Works

File Encryption Patterns

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

File extensions added after encryption:

..Lime

Ransom Note and Payment Demands

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

message

Ransom message:

notes/note.txt

Note locations:

Login
screenshot

Ransom message:

notes/#BackGround.png

Note locations:

Desktop

Technical Indicators

Associated Executable Files

The following executable files are associated with BigEyes ransomware:

  • 9db.exe
  • Crypt.exe
  • CRYPT.EXE
  • 91111db.exe
  • E1B571F1AD5.exe
  • BigEyes.exe
  • #Decryptor

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About This Analysis

This BigEyes 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 BigEyes.

Last updated: July 30, 2025

BigEyes Ransomware - Detectable by Elastio