TA0002 · EXECUTION
Dynamic Data Exchange
Adversaries may use Windows Dynamic Data Exchange (DDE) to execute arbitrary commands. DDE is a client-server protocol for one-time and/or continuous inter-process communication (IPC) between applications.
Detect it with
Monitor processes for abnormal behavior indicative of DDE abuse, such as Microsoft Office applications loading DLLs and other modules not typically associated with the application or these applications spawning unusual processes (such as cmd.exe).
Why it matters on shift
Dynamic Data Exchange is one of the concrete ways adversaries achieve execution. Recognising it in telemetry lets you name the technique in your ticket and pivot to what came before and after.
What to look for next
After execution, the next tactic is usually Persistence. Search your telemetry for the transition before closing the ticket.
Kill-chain context