proc_creation_win_netsh_helper_dll_persistence.yml

title: Potential Persistence Via Netsh Helper DLL
id: 56321594-9087-49d9-bf10-524fe8479452
status: test
description: Detects the execution of netsh with "add helper" flag in order to add a custom helper DLL. This technique can be abused to add a malicious helper DLL that can be used as a persistence proxy that gets called when netsh.exe is executed.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1546.007/T1546.007.md
    - https://attack.mitre.org/software/S0108/
author: Victor Sergeev, oscd.community
date: 2019/10/25
modified: 2023/02/14
tags:
    - attack.privilege_escalation
    - attack.persistence
    - attack.t1546.007
    - attack.s0108
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith: '\netsh.exe'
        CommandLine|contains|all:
            - 'add'
            - 'helper'
    condition: selection
fields:
    - ComputerName
    - User
    - CommandLine
    - ParentCommandLine
falsepositives:
    - Unknown
level: high