Sigma Rule Library

XBAP Execution From Uncommon Locations Via PresentationHost.EXE

Detects the execution of ".xbap" (Browser Applications) files via PresentationHost.EXE from an uncommon location. These files can be abused to run malicious ".xbap" files any bypass AWL

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Detection logic

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_*

Raw YAML

title: XBAP Execution From Uncommon Locations Via PresentationHost.EXE
id: d22e2925-cfd8-463f-96f6-89cec9d9bc5f
status: test
description: |
    Detects the execution of ".xbap" (Browser Applications) files via PresentationHost.EXE from an uncommon location. These files can be abused to run malicious ".xbap" files any bypass AWL
references:
    - https://lolbas-project.github.io/lolbas/Binaries/Presentationhost/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-07-01
modified: 2023-11-09
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: # Filter out legitimate locations if you find them
            - ' C:\Windows\'
            - ' C:\Program Files'
    condition: all of selection* and not 1 of filter_main_*
falsepositives:
    - Legitimate ".xbap" being executed via "PresentationHost"
level: medium

False positives

  • Legitimate ".xbap" being executed via "PresentationHost"

References

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