Suspicious netsh Helper DLL Persistence Registration

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-11-01
Updated
2026-11-01

ATT&CK techniques

Persistence → Priv Esc
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Defense Evasion

  6. Cred Access

  7. Discovery

  8. Lateral Movement

  9. Collection

  10. C2

  11. Exfiltration

  12. Impact

What it detects

This rule detects netsh.exe registering a helper DLL, a persistence and code-execution technique where an attacker-supplied DLL is loaded every time netsh runs. Adversaries abuse this to maintain persistence and execute code under a signed system utility.

Related detections5 linkedT1546.007 — drag to rearrange
Malicious Netsh Helper DLL Abuse - Process (via process_creation)
Windows Registry: Netsh Helper DLL value added under SOFTWARE\Microsoft\NetSh
Windows: Netsh helper DLL registration via suspicious registry paths
Windows Process Creation: Suspicious secedit.exe Security Policy Export or Configuration
Windows netsh.exe "add helper" execution for custom helper DLL loading
Suspicious netsh Helper DLL Persistence Registration
Pivot detection · T1546.007 · 5 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.