Ransomware Research

NyxOn Ransomware

NyxOn is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2026, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
NyxOn
First Seen
March 1, 2026

How NyxOn ransomware works

File modification behavior

NyxOn updates file modification timestamps after encryption.

File encryption patterns

NyxOn modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
  • .nyx

Ransom note and payment demands

After encrypting files, NyxOn displays ransom notes demanding payment for file recovery:

file019e648d-7492-7e06-aa23-3d3041595d1c.NOTE.html
notes/019e648d-7492-7e06-aa23-3d3041595d1c.NOTE.html

Location: Desktop

screenshot
notes/019e648d-757d-722e-8536-5ec4c28de29c.WALL.png

Location: Desktop

Technical indicators

Associated executable files

The following executable files are associated with NyxOn ransomware:

  • nyxon.exe

About this analysis

This NyxOn ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like NyxOn.

Last updated: May 28, 2026

Detection coverage

Elastio detects NyxOn inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify NyxOn across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a hunt against your recovery points to confirm.