Ransomware Research
CryptoLocker by NTK Ransomware
CryptoLocker by NTK is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- CryptoLocker by NTK
- First Seen
- February 1, 2017
How CryptoLocker by NTK Ransomware Works
Targeted Files
Current sample encrypts C:\Utilisateurs\Administrateur\Documents folder only
File Encryption Patterns
CryptoLocker by NTK modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..pownedRansom Note and Payment Demands
After encrypting files, CryptoLocker by NTK displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
OnceOnCompletionTechnical Indicators
Associated Executable Files
The following executable files are associated with CryptoLocker by NTK ransomware:
CryptoLocker by NTK.exe
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About This Analysis
This CryptoLocker by NTK 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 CryptoLocker by NTK.
Last updated: July 30, 2025