Funny you ask this now, just *Yesterday* I was throwing my hands up for the Exact. Same. Annoying problem.
I found a solution on another forum last night & as of now, all seems to be fine again:
Malwarebytes Antimalware (but I think you already did this step)
Hitman Pro 3.5 (it's free for 30 days)
Next, download TDSSKiller and follow guide to use the tool:http://support.kaspersky.com/viruses/solutions?qid=208280684
And when you're done, check your LAN settings in Internet Explorer like this:
Open Internet Explorer and go to Tools-Internet Options-Connection Tab. Click on the LAN settings button. IF there is a check mark next to "Use a proxy server for your LAN", uncheck it. Click OK. Then OK, again.
I'll be curious to know if that works for you too. Good luck!