Elastic Security Detection Rules

Port Forwarding Rule Addition

Last updated 13 days ago on 2025-08-26
Created 5 years ago on 2020-11-25

About

Identifies the creation of a new port forwarding rule. An adversary may abuse this technique to bypass network segmentation restrictions.
Tags
Domain: EndpointOS: WindowsUse Case: Threat DetectionTactic: Command and ControlTactic: Defense EvasionData Source: Elastic EndgameData Source: Elastic DefendData Source: SysmonData Source: SentinelOneData Source: Microsoft Defender for EndpointData Source: CrowdstrikeLanguage: eql
Severity
medium
Risk Score
47
MITRE ATT&CK™

Command and Control (TA0011)(opens in a new tab or window)

↳ Protocol Tunneling (T1572)(opens in a new tab or window)

Defense Evasion (TA0005)(opens in a new tab or window)

↳ Modify Registry (T1112)(opens in a new tab or window)

License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Event Correlation Rule
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
winlogbeat-*logs-endpoint.events.registry-*logs-windows.sysmon_operational-*endgame-*logs-sentinel_one_cloud_funnel.*logs-m365_defender.event-*logs-crowdstrike.fdr*
Related Integrations

endpoint(opens in a new tab or window)

windows(opens in a new tab or window)

sentinel_one_cloud_funnel(opens in a new tab or window)

m365_defender(opens in a new tab or window)

crowdstrike(opens in a new tab or window)

Query
registry where host.os.type == "windows" and event.type == "change" and 
  registry.path : "*\\SYSTEM\\*ControlSet*\\Services\\PortProxy\\v4tov4\\*" and registry.data.strings != null

Install detection rules in Elastic Security

Detect Port Forwarding Rule Addition in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).