Ransomware Research

FireCrypt Ransomware

FireCrypt is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on January 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: BleedGreen.

Quick Facts

Ransomware Family
FireCrypt
First Seen
January 1, 2017
Known Aliases
BleedGreen

How FireCrypt Ransomware Works

File Encryption Patterns

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

File extensions added after encryption:

..firecrypt

Ransom Note and Payment Demands

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

file/^[a-zA-Z]{15}-READ_ME\.html$/

Ransom message:

notes/epjCyVqQIEPgvRE-filesencrypted.html

Note locations:

Desktop
file/^[a-zA-Z]{15}-filesencrypted\.html$/

Ransom message:

notes/epjCyVqQIEPgvRE-READ_ME.html

Note locations:

Desktop

Technical Indicators

Associated Executable Files

The following executable files are associated with FireCrypt ransomware:

  • somefilename.exe
  • FireCrypt.exe
  • shue.exe
  • DjrsqvgahLYXnru.exe
  • fe.exe
  • 22.exe
  • djrsqvgahlyxnru.exe
  • Bluetooth Control Panel
  • bluetooth.cpl
  • CfgBkEnd.dll
  • Working_New.exe
  • pVefdiTMTxLKaeg.exe
  • ok2.exe
  • 1.exe
  • ChqqpufYfKXWmps.exe
  • ok.exe
  • ok.bin

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About This Analysis

This FireCrypt 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 FireCrypt.

Last updated: October 30, 2025

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