Ransomware Research
Muhstik Ransomware
Muhstik is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2019, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: QNAPCrypt-2.
Quick Facts
- Ransomware Family
- Muhstik
- First Seen
- September 1, 2019
- Known Aliases
- QNAPCrypt-2
How Muhstik Ransomware Works
Targeted Files
NOSAMPLE
File Encryption Patterns
Muhstik modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..muhstikRansom Note and Payment Demands
After encrypting files, Muhstik displays ransom notes demanding payment for file recovery:
README_FOR_DECRYPT.txtRansom message:
notes/README_FOR_DECRYPT.txt
Recovery and Decryption Tools
Good news! Decryption tools are available for Muhstik ransomware:
0
1
Elastio Can Help You
Don't let Muhstik ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This Muhstik 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 Muhstik.
Last updated: July 30, 2025