Sigma rule: Potential Persistence Via Netsh Helper DLL - Registry

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-510ac7893c35, updated 2025-10-08T00:00:00.000Z.

Rule

Title
Potential Persistence Via Netsh Helper DLL - Registry
Status
test
Level
medium
Author
Anish Bogati
Date
2023-11-28
Modified
2025-10-08
File
rules/windows/registry/registry_set/registry_set_netsh_helper_dll_potential_persistence.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

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 malicious Netsh helper

Log source

product
windows
category
registry_set

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_*

False positives (as the rule lists them)

  • Legitimate helper added by different programs and the OS

Tags

  • attack.privilege-escalation
  • attack.persistence
  • attack.t1546.007

MITRE ATT&CK ids this rule names

Related rules

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/registry/registry_set/registry_set_netsh_helper_dll_potential_persistence.yml

Sources and licences

  • SigmaHQ

    "Potential Persistence Via Netsh Helper DLL - Registry" by Anish Bogati (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/registry/registry_set/registry_set_netsh_helper_dll_potential_persistence.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Potential Persistence Via Netsh Helper DLL - Registry",
entity page, dataset version ref-510ac7893c35, updated 2025-10-08T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/c90362e0-2df3-4e61-94fe-b37615814cb1 (accessed 2026-11-03).
Underlying source: SigmaHQ rule c90362e0-2df3-4e61-94fe-b37615814cb1, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.