Ransomware Research

BTCWare-Master Ransomware

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

Quick Facts

Ransomware Family
BTCWare-Master
First Seen
June 1, 2017
Known Aliases
Master

How BTCWare-Master Ransomware Works

Targeted Files

Full extension -> .[prt.nyke@protonmail.ch].master

File Encryption Patterns

BTCWare-Master modifies encrypted files using specific patterns to mark them as encrypted:

File extensions added after encryption:

..master

Ransom Note and Payment Demands

After encrypting files, BTCWare-Master displays ransom notes demanding payment for file recovery:

file!#_RESTORE_FILES_#!.inf

Ransom message:

notes/!#_RESTORE_FILES_#!.inf

Note locations:

EveryFolder

Technical Indicators

Associated Executable Files

The following executable files are associated with BTCWare-Master ransomware:

  • teroda@bigmir.net.exe
  • 1.exe
  • 13175480.exe

Elastio Can Help You

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About This Analysis

This BTCWare-Master 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 BTCWare-Master.

Last updated: July 30, 2025

BTCWare-Master Ransomware - Detectable by Elastio