Use Get-NetTCPConnection — Sigma Rule

Rule metadata and linked tags

Author: frack113. Source status: test; severity: low. Source dates: 2021-12-10 / 2023-10-27.

{
  "product": "windows",
  "category": "ps_classic_start"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 5aaea3363ae381c7ed1299467e940fdc4fc5bfa6830ee73f64f69d12a642fc24

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Use Get-NetTCPConnection
id: b366adb4-d63d-422d-8a2c-186463b5ded0
status: test
description: Adversaries may attempt to get a listing of network connections to or from the compromised system they are currently accessing or from remote systems by querying for information over the network.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1049/T1049.md#atomic-test-2---system-network-connections-discovery-with-powershell
author: frack113
date: 2021-12-10
modified: 2023-10-27
tags:
    - attack.discovery
    - attack.t1049
logsource:
    product: windows
    category: ps_classic_start
detection:
    selection:
        Data|contains: 'Get-NetTCPConnection'
    condition: selection
falsepositives:
    - Unknown
level: low

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1049/T1049.md#atomic-test-2---system-network-connections-discovery-with-powershell