Suspicious netsh Port Proxy Configuration for Covert Tunneling

PremiumReviewedSigma · Medium · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-07-27
Updated
2026-08-28

ATT&CK techniques

C2
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. Exfiltration

  13. Impact

What it detects

This rule detects configuration of a netsh portproxy rule used by a Russian APT during the Nearest Neighbor Attack to relay traffic and pivot between networks. Port proxies forward connections to hide lateral movement paths. This technique enables covert access through compromised hosts.

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Suspicious netsh Port Proxy Configuration for Covert Tunneling
Pivot detection · T1090.001 · 8 related

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