Ransomware Research

Nett Ransomware

Nett is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2024, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
Nett
First Seen
May 1, 2024

How Nett Ransomware Works

File Encryption Patterns

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

File extensions added after encryption:

..nett

Ransom Note and Payment Demands

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

fileRecovery_Instructions.html

Ransom message:

notes/Recovery_Instructions.html

Note locations:

EveryFolder

Technical Indicators

Associated Executable Files

The following executable files are associated with Nett ransomware:

  • svhost.exe

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About This Analysis

This Nett 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 Nett.

Last updated: July 30, 2025

Nett Ransomware - Detectable by Elastio