sigmamediumHunting

Arbitrary File Download Via GfxDownloadWrapper.EXE

Detects execution of GfxDownloadWrapper.exe with a URL as an argument to download file.

MITRE ATT&CK

command-and-control

Detection Query

selection:
  Image|endswith: \GfxDownloadWrapper.exe
  CommandLine|contains:
    - http://
    - https://
filter_main_known_urls:
  CommandLine|contains: https://gameplayapi.intel.com/
condition: selection and not 1 of filter_main_*

Author

Victor Sergeev, oscd.community

Created

2020-10-09

Data Sources

windowsProcess Creation Events

Platforms

windows

References

https://lolbas-project.github.io/lolbas/HonorableMentions/GfxDownloadWrapper/

Tags

attack.command-and-controlattack.t1105

Raw Content

title: Arbitrary File Download Via GfxDownloadWrapper.EXE
id: eee00933-a761-4cd0-be70-c42fe91731e7
status: test
description: Detects execution of GfxDownloadWrapper.exe with a URL as an argument to download file.
references:
    - https://lolbas-project.github.io/lolbas/HonorableMentions/GfxDownloadWrapper/
author: Victor Sergeev, oscd.community
date: 2020-10-09
modified: 2023-10-18
tags:
    - attack.command-and-control
    - attack.t1105
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith: '\GfxDownloadWrapper.exe'
        CommandLine|contains:
            - 'http://'
            - 'https://'
    filter_main_known_urls:
        CommandLine|contains: 'https://gameplayapi.intel.com/'
    condition: selection and not 1 of filter_main_*
falsepositives:
    - Unknown
level: medium