XBAP Execution From Unusual Locations Through PresentationHost.EXE (via process_creation)

This rule detects the execution of ".xbap" (Browser Applications) files via PresentationHost.EXE from an uncommon location. These files can be misused to run hostile ".xbap" files any bypass AWL

SigmamediumWindowsv1
sigma
title: XBAP Execution From Unusual Locations Through PresentationHost.EXE (via process_creation)
id: 9b866727-8d81-5f57-ad3e-3b7bcc6aa572
status: stable
description: This rule detects the execution of ".xbap" (Browser Applications) files via PresentationHost.EXE from an uncommon location. These files can be misused to run hostile ".xbap" files any bypass AWL
references:
    - https://attack.mitre.org/techniques/T1218/
    - https://lolbas-project.github.io/lolbas/Binaries/Presentationhost/
author: Huntrule Team
date: 2026-03-24
tags:
    - attack.execution
    - attack.stealth
    - attack.t1218
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\presentationhost.exe'
        - OriginalFileName: 'PresentationHost.exe'
    selection_cli:
        CommandLine|contains: '.xbap'
    filter_main_generic:
        CommandLine|contains:
            - ' C:\Windows\'
            - ' C:\Program Files'
    condition: all of selection* and not 1 of filter_main_*
falsepositives:
    - Unknown
level: medium

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.