Ransomware Research

TheDarkEncryptor Ransomware

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

Quick facts

Ransomware Family
TheDarkEncryptor
First Seen
June 1, 2017

How TheDarkEncryptor ransomware works

File encryption patterns

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

Extensions added after encryption
.tdelf

Ransom note and payment demands

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

screenshot
notes/RansomWare.res.wallpaper.png
Location: Desktop
message
notes/note.txt
Location: Login

Technical indicators

Associated executable files

The following executable files are associated with TheDarkEncryptor ransomware:

About this analysis

This TheDarkEncryptor 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 TheDarkEncryptor.

Last updated: December 30, 2025

Detection coverage

Elastio detects TheDarkEncryptor inside your data and backups.

The Hunt Engine uses Deep File Inspection to identify TheDarkEncryptor 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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