Ransomware Research
NazCrypt Ransomware
NazCrypt is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2018, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- NazCrypt
- First Seen
- February 1, 2018
How NazCrypt Ransomware Works
Targeted Files
NOSAMPLE
File Encryption Patterns
NazCrypt modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..nazcryptRansom Note and Payment Demands
After encrypting files, NazCrypt displays ransom notes demanding payment for file recovery:
NAZCRYPT_RECOVERY_INSTRUCTIONS.txtRansom message:
notes/NAZCRYPT_RECOVERY_INSTRUCTIONS.txt
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About This Analysis
This NazCrypt 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 NazCrypt.
Last updated: July 30, 2025