Sigma rule: Potential Persistence Via Netsh Helper DLL

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-8d70095e8bc9, updated 2023-11-28T00:00:00.000Z.

Rule

Title
Potential Persistence Via Netsh Helper DLL
Status
test
Level
medium
Author
Victor Sergeev, oscd.community
Date
2019-10-25
Modified
2023-11-28
File
rules/windows/process_creation/proc_creation_win_netsh_helper_dll_persistence.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

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.

Log source

product
windows
category
process_creation

Detection

selection_img:
    - OriginalFileName: 'netsh.exe'
    - Image|endswith: '\netsh.exe'
selection_cli:
    CommandLine|contains|all:
        - 'add'
        - 'helper'
condition: all of selection_*

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.privilege-escalation
  • attack.persistence
  • attack.t1546.007
  • attack.s0108

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/process_creation/proc_creation_win_netsh_helper_dll_persistence.yml

Sources and licences

  • SigmaHQ

    "Potential Persistence Via Netsh Helper DLL" by Victor Sergeev, oscd.community (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_netsh_helper_dll_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",
entity page, dataset version ref-8d70095e8bc9, updated 2023-11-28T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/56321594-9087-49d9-bf10-524fe8479452 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 56321594-9087-49d9-bf10-524fe8479452, 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.