Suspicious Direct Autorun Keys Change (via process_creation)

title: Suspicious Direct Autorun Keys Change (via process_creation)
id: bb8c5b95-940f-5785-b0dd-436b00997af1
status: stable
description: This rule detects direct modification of autostart extensibility point (ASEP) in registry using reg.exe.
references:
    - https://attack.mitre.org/techniques/T1547/001/
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1547.001/T1547.001.md
    - https://github.com/HackTricks-wiki/hacktricks/blob/e4c7b21b8f36c97c35b7c622732b38a189ce18f7/src/windows-hardening/windows-local-privilege-escalation/privilege-escalation-with-autorun-binaries.md
author: Huntrule Team
date: 2026-07-08
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.t1547.001
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\reg.exe'
        - OriginalFileName: 'reg.exe'
    selection_cli_add:
        CommandLine|contains: 'add'
    selection_cli_keys:
        CommandLine|contains:
            - '\software\Microsoft\Windows\CurrentVersion\Run'
            - '\software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run'
            - '\software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run'
            - '\software\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit'
            - '\software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell'
            - '\software\Microsoft\Windows NT\CurrentVersion\Windows'
            - '\system\CurrentControlSet\Control\SafeBoot\AlternateShell'
    condition: all of selection_*
falsepositives:
    - Unknown
level: medium