I take care of our small SBS2011 based system (approx 30 users). I have a (1) user (Windows 7 Pro system) who can no longer browse the internet with Firefox or IE. If I log in as another user, I can browse - no problem.
Logged in under the problem user, I can ping web sites and get 4 good returns. I did scan with Sophos, Malwarebytes, SFC and Vipre Rescue (safe mode). Malwarebytes did find and quarantine a few things.
What ever he stepped in, it did load a couple of BS programs which I went into control panel (programs) and uninstalled as well.
What should I look for or try next?
I was going to try Rkill, Combofix and adwCleaner.