Ransomware Research

Nodera Ransomware

Nodera is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on December 1, 2019, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: NodeJS.

Quick facts

Ransomware Family
Nodera
First Seen
December 1, 2019
Known Aliases
NodeJS

How Nodera ransomware works

File encryption patterns

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

Extensions added after encryption
.encrypted

Ransom note and payment demands

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

fileHow-to-buy-bitcoins.html
notes/How-to-buy-bitcoins.html
Location: Desktop

Technical indicators

Associated executable files

The following executable files are associated with Nodera ransomware:

About this analysis

This Nodera 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 Nodera.

Last updated: December 30, 2025

Detection coverage

Elastio detects Nodera inside your data and backups.

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

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What is Nodera Ransomware? | Elastio