Registry Hide Function from User — Sigma Rule

Rule metadata and linked tags

Author: frack113. Source status: test; severity: medium. Source dates: 2022-03-18 / 2023-08-17.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: e53124a4aa3f3d7d5a25cdbf068c2db17ce30e6b33dff5501cbaf5deafe408e8

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: Registry Hide Function from User
id: 5a93eb65-dffa-4543-b761-94aa60098fb6
status: test
description: Detects registry modifications that hide internal tools or functions from the user (malware like Agent Tesla, Hermetic Wiper uses this technique)
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1564.001/T1564.001.md
author: frack113
date: 2022-03-18
modified: 2023-08-17
tags:
    - attack.persistence
    - attack.defense-impairment
    - attack.t1112
logsource:
    category: registry_set
    product: windows
detection:
    selection_set_1:
        TargetObject|endswith:
            - 'SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\HideClock'
            - 'SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\HideSCAHealth'
            - 'SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\HideSCANetwork'
            - 'SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\HideSCAPower'
            - 'SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\HideSCAVolume'
        Details: 'DWORD (0x00000001)'
    selection_set_0:
        TargetObject|endswith:
            - 'SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowInfoTip'
            - 'SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowCompColor'
        Details: 'DWORD (0x00000000)'
    condition: 1 of selection_set_*
falsepositives:
    - Legitimate admin script
level: medium

Original YAML and metadata in JSON

False positives

• Legitimate admin script

Source references

• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1564.001/T1564.001.md