Enable Microsoft Dynamic Data Exchange

Description

Enable Dynamic Data Exchange protocol (DDE) in all supported editions of Microsoft Word or Excel.

Query · sigma

selection_word:
  TargetObject|endswith: \Word\Security\AllowDDE
  Details:
  - DWORD (0x00000001)
  - DWORD (0x00000002)
selection_excel:
  TargetObject|endswith:
  - \Excel\Security\DisableDDEServerLaunch
  - \Excel\Security\DisableDDEServerLookup
  Details: DWORD (0x00000000)
condition: 1 of selection_*

Known false positives

  • Unknown
Raw source Enable Microsoft Dynamic Data Exchange · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Enable Microsoft Dynamic Data Exchange
id: 63647769-326d-4dde-a419-b925cc0caf42
status: test
description: Enable Dynamic Data Exchange protocol (DDE) in all supported editions of Microsoft Word or Excel.
references:
    - https://msrc.microsoft.com/update-guide/vulnerability/ADV170021
author: frack113
date: 2022-02-26
modified: 2023-08-17
tags:
    - attack.execution
    - attack.t1559.002
logsource:
    category: registry_set
    product: windows
detection:
    selection_word:
        TargetObject|endswith: '\Word\Security\AllowDDE'
        Details:
            - 'DWORD (0x00000001)'
            - 'DWORD (0x00000002)'
    selection_excel:
        TargetObject|endswith:
            - '\Excel\Security\DisableDDEServerLaunch'
            - '\Excel\Security\DisableDDEServerLookup'
        Details: 'DWORD (0x00000000)'
    condition: 1 of selection_*
falsepositives:
    - Unknown
level: medium

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