Adding T1090.003 Test 4 - Tor Proxy Usage on MacOS (#1789)

This test is designed to launch the Tor proxy service on MacOS.

atomics/T1090.003/T1090.003.yaml

@@ -85,4 +85,25 @@ atomic_tests:
      sudo systemctl start tor 
     cleanup_command: |
      sudo systemctl stop tor
-    name: sh    
+    name: sh
+- name: Tor Proxy Usage - MacOS
+  description: |
+    This test is designed to launch the tor proxy service, which is what is utilized in the background by the Tor Browser and other applications with add-ons in order to provide onion routing functionality.
+    Upon successful execution, the tor proxy service will be launched. 
+  supported_platforms:
+  - macos
+  dependency_executor_name: sh
+  dependencies:
+  - description: |
+     Tor must be installed on the machine 
+    prereq_command: |
+     if [ -x "$(command -v tor --version)" ]; then exit 0; else exit 1; fi
+    get_prereq_command: |
+      if [ ! -x "$(command -v brew --version)" ]; then /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh keystroke return)"; fi
+      brew install tor
+  executor:
+    command: |
+     osascript -e 'tell application "Terminal" to do script "tor"'
+    cleanup_command: |
+     killall tor > /dev/null 2>&1
+    name: sh