Enable Microsoft Dynamic Data Exchange

Last updated on:

About the rule

Rule Type

Standard

Rule Description

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

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Registry value modified" AND ((OBJECTNAME endswith "\Word\Security\AllowDDE" OR (OBJECTNAME endswith "\Word\Security" AND OBJECTVALUENAME = "AllowDDE")) AND (INFORMATION = "DWORD (0x00000001),DWORD (0x00000002)" OR (CHANGES = "1,2" AND NEWTYPE = "REG_DWORD,REG_DWORD"))) OR ((OBJECTNAME endswith "\Excel\Security\DisableDDEServerLaunch,\Excel\Security\DisableDDEServerLookup" OR (OBJECTNAME endswith "\Excel\Security,\Excel\Security" AND OBJECTVALUENAME = "DisableDDEServerLaunch,DisableDDEServerLookup")) AND (INFORMATION = "DWORD (0x00000000)" OR (CHANGES = 0 AND NEWTYPE = "REG_DWORD"))) select Action1.HOSTNAME,Action1.MESSAGE,Action1.OBJECTNAME,Action1.PROCESSNAME,Action1.PREVVAL,Action1.CHANGES

Detection

Execution Mode

realtime

Log Sources

Windows

Author

frack113