Detectionmediumtest

Potential ShellDispatch.DLL Functionality Abuse

Detects potential "ShellDispatch.dll" functionality abuse to execute arbitrary binaries via "ShellExecute"

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X__Junior (Nextron Systems)Created Tue Jun 2082343930-652f-43f5-ab70-2ee9fdd6d5e9windows
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic
Detection Logic2 selectors
detection:
    selection_img:
        - Image|endswith: '\rundll32.exe'
        - OriginalFileName: 'RUNDLL32.EXE'
    selection_cli:
        CommandLine|contains: 'RunDll_ShellExecuteW'
    condition: all of selection_*
False Positives
Unlikely

False positives are unlikely for most environments. High confidence detection.

Rule Metadata
Rule ID
82343930-652f-43f5-ab70-2ee9fdd6d5e9
Status
test
Level
medium
Type
Detection
Created
Tue Jun 20
Path
rules/windows/process_creation/proc_creation_win_rundll32_shelldispatch_potential_abuse.yml
Raw Tags
attack.executionattack.defense-evasion
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