PUA - Advanced Port Scanner Execution — Sigma Rule

Rule metadata and linked tags

Author: Nasreddine Bencherchali (Nextron Systems). Source status: test; severity: medium. Source dates: 2021-12-18 / 2023-02-07.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: eda0ed37a629400f00b17f9e8b408ab2b092efda7b566f32265592550485e68a

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: PUA - Advanced Port Scanner Execution
id: 54773c5f-f1cc-4703-9126-2f797d96a69d
status: test
description: Detects the use of Advanced Port Scanner.
references:
    - https://github.com/3CORESec/MAL-CL/tree/master/Descriptors/Other/Advanced%20Port%20Scanner
author: Nasreddine Bencherchali (Nextron Systems)
date: 2021-12-18
modified: 2023-02-07
tags:
    - attack.discovery
    - attack.t1046
    - attack.t1135
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|contains: '\advanced_port_scanner'
        - OriginalFileName|contains: 'advanced_port_scanner' # Covers also advanced_port_scanner_console.exe
        - Description|contains: 'Advanced Port Scanner'
    selection_cli:
        CommandLine|contains|all:
            - '/portable'
            - '/lng'
    condition: 1 of selection_*
falsepositives:
    - Legitimate administrative use
    - Tools with similar commandline (very rare)
level: medium
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_pua_advanced_port_scanner/info.yml

Original YAML and metadata in JSON

False positives

• Legitimate administrative use
• Tools with similar commandline (very rare)

Source references

• https://github.com/3CORESec/MAL-CL/tree/master/Descriptors/Other/Advanced%20Port%20Scanner