Suspicious Arbitrary File Download Through PresentationHost.EXE (via process_creation)

This rule detects use of "PresentationHost" which is a utility that runs ".xbap" (Browser Applications) files to download arbitrary files

SigmamediumWindowsv1
sigma
title: Suspicious Arbitrary File Download Through PresentationHost.EXE (via process_creation)
id: b7ee2fbd-da17-5ad6-9d1e-10334c6caa93
status: stable
description: This rule detects use of "PresentationHost" which is a utility that runs ".xbap" (Browser Applications) files to download arbitrary files
references:
    - https://attack.mitre.org/techniques/T1218/
    - https://github.com/LOLBAS-Project/LOLBAS/pull/239/files
author: Huntrule Team
date: 2026-04-26
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:
            - 'http://'
            - 'https://'
            - 'ftp://'
    condition: all of selection_*
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.