Registry Persistence via Explorer Run Key — Sigma Rule

Rule metadata and linked tags

Author: Florian Roth (Nextron Systems), oscd.community. Source status: test; severity: high. Source dates: 2018-07-18 / 2023-12-11.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 5f10d7214491141466144990f87d9c73b1faa67223ea75dac6b6d6cb5d32abf9

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 Persistence via Explorer Run Key
id: b7916c2a-fa2f-4795-9477-32b731f70f11
status: test
description: Detects a possible persistence mechanism using RUN key for Windows Explorer and pointing to a suspicious folder
references:
    - https://researchcenter.paloaltonetworks.com/2018/07/unit42-upatre-continues-evolve-new-anti-analysis-techniques/
author: Florian Roth (Nextron Systems), oscd.community
date: 2018-07-18
modified: 2023-12-11
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.t1547.001
logsource:
    category: registry_set
    product: windows
detection:
    selection:
        TargetObject|endswith: '\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run'
        Details|contains:
            - ':\$Recycle.bin\'
            - ':\ProgramData\'
            - ':\Temp\'
            - ':\Users\Default\'
            - ':\Users\Public\'
            - ':\Windows\Temp\'
            - '\AppData\Local\Temp\'
    condition: selection
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://researchcenter.paloaltonetworks.com/2018/07/unit42-upatre-continues-evolve-new-anti-analysis-techniques/