Ransomware Research

3nCRY Ransomware

3nCRY is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2017, this ransomware has been actively targeting systems worldwide.

Quick facts

Ransomware Family
3nCRY
First Seen
September 1, 2017

How 3nCRY ransomware works

File encryption patterns

3nCRY modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.3nCRY

Ransom note and payment demands

After encrypting files, 3nCRY displays ransom notes demanding payment for file recovery:

fileREAD_ME.txt
notes/READ_ME.txt

About this analysis

This 3nCRY 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 3nCRY.

Last updated: December 30, 2025

Detection coverage

Elastio detects 3nCRY inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify 3nCRY 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.

See How the Hunt Engine WorksRequest a Demo

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