Universal AntiCheat (UAC3) software - client side cheat detecting system. It is designed to make scans of computer in unspecific random time, search for cheats or other software used for gaining advantage over other users.
UAC3 is designed for league use only, but it can be used also for personal use by clans.
Screen contains text messages that will help to identify the screen and user (time, version, user id etc.). Scan info also contains information about your current computer setup (CPU, VGA, RAM etc) and running processes. This information is used to detect cheats.