Suspicious PUA - Advanced IP/Port Scanner Update Check (via proxy)

title: Suspicious PUA - Advanced IP/Port Scanner Update Check (via proxy)
id: 758a9c4b-8211-53ba-b4fe-4aed11522029
status: stable
description: This rule detects the update check performed by Advanced IP/Port Scanner utilities.
references:
    - https://attack.mitre.org/techniques/T1590/
    - https://www.advanced-ip-scanner.com/
    - https://www.advanced-port-scanner.com/
author: Huntrule Team
date: 2026-05-20
tags:
    - attack.discovery
    - attack.reconnaissance
    - attack.t1590
logsource:
    category: proxy
detection:
    selection:
        c-uri|contains: '/checkupdate.php'
        c-uri-query|contains|all:
            - 'lng='
            - 'ver='
            - 'beta='
            - 'type='
            - 'rmode='
            - 'product='
    condition: selection
falsepositives:
    - Unknown
level: medium