Tap Driver Installation - Security — Sigma Rule

Rule metadata and linked tags

Author: Daniil Yugoslavskiy, Ian Davis, oscd.community. Source status: test; severity: low. Source dates: 2019-10-24 / 2022-11-29.

{
  "product": "windows",
  "service": "security",
  "definition": "Requirements: The System Security Extension audit subcategory need to be enabled to log the EID 4697"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 7b7a289cdc647e65677fde953d3be03518be7947d7c8740b70762e6fd10c2c43

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: Tap Driver Installation - Security
id: 9c8afa4d-0022-48f0-9456-3712466f9701
related:
    - id: 8e4cf0e5-aa5d-4dc3-beff-dc26917744a9
      type: derived
status: test
description: |
    Detects the installation of a well-known TAP driver service. This could be a sign of potential preparation for data exfiltration using tunnelling techniques.
references:
    - https://community.openvpn.net/openvpn/wiki/ManagingWindowsTAPDrivers
author: Daniil Yugoslavskiy, Ian Davis, oscd.community
date: 2019-10-24
modified: 2022-11-29
tags:
    - attack.exfiltration
    - attack.t1048
logsource:
    product: windows
    service: security
    definition: 'Requirements: The System Security Extension audit subcategory need to be enabled to log the EID 4697'
detection:
    selection:
        EventID: 4697
        ServiceFileName|contains: 'tap0901'
    condition: selection
falsepositives:
    - Legitimate OpenVPN TAP installation
level: low

Original YAML and metadata in JSON

False positives

• Legitimate OpenVPN TAP installation

Source references

• https://community.openvpn.net/openvpn/wiki/ManagingWindowsTAPDrivers