Ransomware Research
Nnll Ransomware
Nnll is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Nnll
- First Seen
- September 1, 2023
How Nnll Ransomware Works
Targeted Files
Potentially Stop/Djvu ransomware copycat
File Encryption Patterns
Nnll modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..nnllRansom Note and Payment Demands
After encrypting files, Nnll displays ransom notes demanding payment for file recovery:
_Readme.txtRansom message:
notes/_Readme.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with Nnll ransomware:
ConsoleApp2.exennll.exennll
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About This Analysis
This Nnll 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 Nnll.
Last updated: July 30, 2025