Narrator's Feedback-Hub Persistence — Sigma Rule

Rule metadata and linked tags

Author: Dmitriy Lifanov, oscd.community. Source status: test; severity: high. Source dates: 2019-10-25 / 2022-03-26.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: e9bf918bfc0295cf97499ab8308d04580f6636b13b4343d67e63595362799aa6

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: Narrator's Feedback-Hub Persistence
id: f663a6d9-9d1b-49b8-b2b1-0637914d199a
status: test
description: Detects abusing Windows 10 Narrator's Feedback-Hub
references:
    - https://giuliocomi.blogspot.com/2019/10/abusing-windows-10-narrators-feedback.html
author: Dmitriy Lifanov, oscd.community
date: 2019-10-25
modified: 2022-03-26
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.t1547.001
logsource:
    category: registry_event
    product: windows
detection:
    selection1:
        EventType: DeleteValue
        TargetObject|endswith: '\AppXypsaf9f1qserqevf0sws76dx4k9a5206\Shell\open\command\DelegateExecute'
    selection2:
        TargetObject|endswith: '\AppXypsaf9f1qserqevf0sws76dx4k9a5206\Shell\open\command\(Default)'
    # Add the payload in the (Default)
    condition: 1 of selection*
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://giuliocomi.blogspot.com/2019/10/abusing-windows-10-narrators-feedback.html