Ransomware Research
Matroska Ransomware
Matroska is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Matroska
- First Seen
- July 1, 2017
How Matroska Ransomware Works
File Encryption Patterns
Matroska modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..HUSTONWEHAVEAPROBLEM@KEEMAIL.ME..encrypted[Payfordecrypt@protonmail.com]..happyness..nefartanulo@protonmail.com..siliconegun@tutanota.comRansom Note and Payment Demands
After encrypting files, Matroska displays ransom notes demanding payment for file recovery:
HOW_TO_RECOVER_ENCRYPTED_FILES.txtRansom message:
notes/HOW_TO_RECOVER_ENCRYPTED_FILES.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with Matroska ransomware:
mscauth.exemscaut.exe
Elastio Can Help You
Don't let Matroska ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This Matroska 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 Matroska.
Last updated: July 30, 2025