Ransomware Research

Nanocrypt Ransomware

Nanocrypt is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on April 1, 2025, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
Nanocrypt
First Seen
April 1, 2025

How Nanocrypt ransomware works

File modification behavior

Nanocrypt updates file modification timestamps after encryption.

File encryption patterns

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

Extensions added after encryption
  • .ncrypt

Ransom note and payment demands

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

fileREADME.txt
notes/README.txt

Location: Desktop

Technical indicators

Associated executable files

The following executable files are associated with Nanocrypt ransomware:

  • TestRansom.exe

About this analysis

This Nanocrypt 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 Nanocrypt.

Last updated: April 16, 2025

Detection coverage

Elastio detects Nanocrypt inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify Nanocrypt 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.