For those of you who are into active web recon testing, I decided to make a new module for Recon-ng Framework: https://www.soldierx.com/sxlabs/Simple-Admin-Page-Finder-Module-Recon-ng.... This new module is called 'Simple Admin Page Finder' which checks the hosts for possible administrator pages and administrator directories.
You can add additional known admin directories in the variable admindirs after the comment add known admin directories here.
-scryptz0