Most of the issues I am experiencing are described: http://www.bleepingcomputer.com/virus-removal/remove-windows-xp-repair
This includes the hijackthis entry described in the article, "low disk space" warning, google search redirect, hidden files, as well as the "windows xp repair" shortcut installed on the desktop.
It also includes indications that the TDSS rootkit has been installed. Malwarebytes received an error when trying to update. Thats the point I get a little confused...the article defers on this variety saying:
"this guide will not be able to help you and you should instead follow the instructions in this topic in order to receive one-on-one help in removing this infection"
I'm not entirely sure what that means, but if anyone has any helpful thought
, I would be be very much obliged.