In versions of Mac OS X before 10.11.1, the applescript:// URL scheme is provided, which opens the provided script in the Applescript Editor. Pressing cmd-R in the Editor executes the code without any additional confirmation from the user. By getting the user to press cmd-R in Safari, and by hooking the cmd-key keypress event, a user can be tricked into running arbitrary Applescript code. Gatekeeper should be disabled from Security & Privacy in order to avoid the unidentified Developer prompt.
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
Time is precious, so I don’t want to do something manually that I can automate. Leveraging the Metasploit Framework when automating any task keeps us from having to re-create the wheel as we can use the existing libraries and focus our efforts where it matters.
– Jim O’Gorman | President, Offensive Security