Ransomware Research

CryptoMix-Exte Ransomware

CryptoMix-Exte is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Exte.

Quick facts

Ransomware Family
CryptoMix-Exte
First Seen
July 1, 2017
Known Aliases
Exte

How CryptoMix-Exte ransomware works

File encryption patterns

CryptoMix-Exte modifies encrypted files using specific patterns to mark them as encrypted:

Extensions added after encryption
.EXTE

Ransom note and payment demands

After encrypting files, CryptoMix-Exte displays ransom notes demanding payment for file recovery:

file_HELP_INSTRUCTION.TXT
notes/_HELP_INSTRUCTION.TXT
Location: EveryFolder

Technical indicators

Associated executable files

The following executable files are associated with CryptoMix-Exte ransomware:

About this analysis

This CryptoMix-Exte 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 CryptoMix-Exte.

Last updated: December 30, 2025

Detection coverage

Elastio detects CryptoMix-Exte inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify CryptoMix-Exte 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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