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Port Forwarding Rule Addition

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Port Forwarding Rule Addition

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Identifies the creation of a new port forwarding rule. An adversary may abuse this technique to bypass network segmentation restrictions.

Rule type: eql

Rule indices:

winlogbeat-*
logs-endpoint.events.*
logs-windows.*

Severity: medium

Risk score: 47

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

https://www.fireeye.com/blog/threat-research/2019/01/bypassing-network-restrictions-through-rdp-tunneling.html

Tags:

Elastic
Host
Windows
Threat Detection
Command and Control

Version: 4

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

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registry where registry.path : "HKLM\\SYSTEM\\ControlSet*\\Services\\PortProxy\\v4tov4\\*"

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Command and Control
- ID: TA0011
- Reference URL: https://attack.mitre.org/tactics/TA0011/
Technique:
- Name: Protocol Tunneling
- ID: T1572
- Reference URL: https://attack.mitre.org/techniques/T1572/

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