IMPORTANT - This software cannot track if you have modded RPF file, but only for new files in the main game folder. You can keep track of original game files or modded file using my Mod Manager software, that you can find on my GitHub repository. If you go online with that modified files, you will be banned.
Modified game files and/or scripthook will prevent you from going online, but if you modify original RPF files, GTA V will alert you with the message 'Modified files found in GTA V folder'. It's very important to take a backup of the original game files if you want go online. Here you can find all the informations and utilities for modding GTA V! Original game files backup and restore