Possible Persistence Through Netsh Helper DLL - Registry (via registry_set)
This rule detects changes to the Netsh registry key to add a new DLL value. This change might be an indication of a potential persistence attempt by adding a hostile Netsh helper
SigmamediumWindowsv1
sigma
possible-persistence-through-netsh-helper-dll-registry-via-registry-set
title: Possible Persistence Through Netsh Helper DLL - Registry (via registry_set)
id: e7af82dd-2a8a-55e7-b6ea-f15a0bb299f4
status: stable
description: This rule detects changes to the Netsh registry key to add a new DLL value. This change might be an indication of a potential persistence attempt by adding a hostile Netsh helper
references:
- https://attack.mitre.org/techniques/T1546/007/
- https://www.ired.team/offensive-security/persistence/t1128-netsh-helper-dll
- https://pentestlab.blog/2019/10/29/persistence-netsh-helper-dll/
author: Huntrule Team
date: 2026-06-23
tags:
- attack.privilege-escalation
- attack.persistence
- attack.t1546.007
logsource:
category: registry_set
product: windows
detection:
selection:
TargetObject|contains: '\SOFTWARE\Microsoft\NetSh'
Details|contains: '.dll'
filter_main_poqexec:
Image: 'C:\Windows\System32\poqexec.exe'
Details:
- 'ipmontr.dll'
- 'iasmontr.dll'
- 'ippromon.dll'
condition: selection and not 1 of filter_main_*
falsepositives:
- Unknown
level: medium
Known false positives
- Unknown
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.