Here is a more technical description of what my app does. It includes TR's libexploit.so(aka the native exploit by Geohot) which I use to gain root privileges. Once it has root privileges it then echo's the file path to my modified Pie root file to uevent_helper. It then causes a hotplug event to trigger the kernel to execute the file path just echoed to uevent_helper. My modified Pie root files, kill TR's daemonsu and mounts Pie root's xbin.img over /system/xbin. Then it copies the newer version of SuperSU's su binary and executes the new daemonsu daemon and viola root 
If you enjoyed my app, please donate to Geohot at https://towelroot.com/, and JCase at jcase@cunninglogic.com! I do not want any donations, I set out to develop this app purely as a challenge to broaden my development skills not to get a donation.
Installation Instructions: You need to have unknown sources checked in Settings>>Security, and if you have Towelroot installed uninstall it. In order to use TR's exploit I had to name the app's package name to the same name as TR's package name, so you will have to uninstall TR to install my app. Also if you are currently rooted with Pie root please reboot before running my app, to clear Pie's su daemon, and to unmount Pie's xbin.img. Then just click Make it ra1n on Moto, and wait for it to say Root Acheived Enjoy! If you encounter any issues please uninstall v1.0 then re-install v1.1.
Download link:
Verttex(Dier325) - for being my main tester and testing the numerous test apk's I sent him
jpond83 - for testing
mohlsen8 - for testing on the Moto G
NipplesOfTheFuture - for testing, some workflow ideas, and for convincing me to try and get the bin.img method working correctly
**Source**
