Rundll32 Registered COM Objects

title: Rundll32 Registered COM Objects
id: f1edd233-30b5-4823-9e6a-c4171b24d316
status: test
description: load malicious registered COM objects
references:
    - https://nasbench.medium.com/a-deep-dive-into-rundll32-exe-642344b41e90
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1546.015/T1546.015.md
author: frack113
date: 2022-02-13
modified: 2023-02-09
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.t1546.015
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\rundll32.exe'
        - OriginalFileName: 'RUNDLL32.EXE'
    selection_cli:
        CommandLine|contains:
            - '-sta '
            - '-localserver '
        CommandLine|contains|all:
            - '{'
            - '}'
    condition: all of selection_*
falsepositives:
    - Legitimate use
level: high