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
File Encryption Patterns
BTCWare-Master modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..masterRansom Note and Payment Demands
After encrypting files, BTCWare-Master displays ransom notes demanding payment for file recovery:
!#_RESTORE_FILES_#!.infRansom message:
notes/!#_RESTORE_FILES_#!.inf
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with BTCWare-Master ransomware:
teroda@bigmir.net.exe1.exe13175480.exe
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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: October 30, 2025
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