You can delete all files and folders located in “c:\documents and settings\user\localsettings\temporaryinternet” you can delete them regular, it only contains the IE Cache. You can do it manual or through the “internet options”.

You may read this link: http://www.sophos.com/virusinfo/analyses/apptubmoc.html

And maybe it was usefull for you to install SpybotSD( http://security.kolla.de/ ) or/and Adaware ( http://www.lavasoft.de/ )