Ransomware Research
Neitrino Ransomware
Neitrino is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Neitrino
- First Seen
- October 1, 2017
How Neitrino Ransomware Works
Targeted Files
NOSAMPLE
File Encryption Patterns
Neitrino modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..neitrino..excusesRansom Note and Payment Demands
After encrypting files, Neitrino displays ransom notes demanding payment for file recovery:
MESSAGE.txtRansom message:
notes/MESSAGE.txt
Technical Indicators
Associated Executable Files
The following executable files are associated with Neitrino ransomware:
AdobeUpdate.exe
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About This Analysis
This Neitrino 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 Neitrino.
Last updated: July 30, 2025