Ransomware Research

DDE Ransomware

DDE is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2018, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
DDE
First Seen
July 1, 2018

How DDE Ransomware Works

Targeted Files

Encrypts Downloads folder only

File Encryption Patterns

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

File extensions added after encryption:

..encrypted

Ransom Note and Payment Demands

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

message

Ransom message:

notes/note.txt

Note locations:

OnceOnCompletion

Technical Indicators

Associated Executable Files

The following executable files are associated with DDE ransomware:

  • DDE.exe
  • dde_ransomware.exe
  • dde.exe
  • ran.exe

Elastio Can Help You

Don't let DDE ransomware take over your data

Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.

Learn MoreGet Started

About This Analysis

This DDE ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like DDE.

Last updated: July 30, 2025

Recent Ransomware

Explore other threats in our database

View all ransomware