It is not modified in any way, just that it has to be installed with Device Manager rather than clicking an EXE. I pulled just the driver out of the 11.3 megabyte VIA 4.90a EXE installer package because it installs extra, useless crap and fails to install the HUB driver anyway (did the same on WIN7 and 10). I'm not sure if you have the VL805 (MSI shows VL806 if I looked at the right board version, it uses the same driver, shows up under WIN7圆4 section on MSI's site but Gigabyte shows the same driver for WIN10圆4 too), but I'm attaching that driver if you want to try it on yours. It always installs the main driver (xhcdrv.inf) then shows a '!' over the VIA HUB and I have to point that to the driver folder as well and then it installs the second part (ViaHub3.inf).

Windows 10 uses a default driver that works fine for me, but I have used the VIA driver that gigabyte offers before to see if it improved performance (it did not, but it worked fine) and it showed the same HUB with '!' behavior. I have a GA-970A-UD3P with a VIA VL805 USB3 controller in it.

Via usb extensible host controller xbox