Lets do this while where waiting to rule out if Spybot is responsible for the hosts file backup

Right click on the Windows Logo on the bottom left of your taskbar and select Programs and Features, look for Spybot and uninstall it. Its causing you problems right now and we can reinstall it when we are done
After you uninstall it , reboot your system

Then run this fix

Open notepad , Go to Start --> All Programs --> Accessories --> Notepad.
Please copy the entire contents Inside of the code box below beginning with START and ending with END
(To do this highlight the contents of the box, right click on it and select copy. Right-click in the open notepad and select Paste).
Name the file Fixlist, Save it to your desktop where you have FRST/FRST64 or the fix wont work, . Then open up FRST/FRST64 by Right Clicking on it and select RUN AS ADMINISTRATOR, then click on FIX (Not Scan) It won't take long, after your computer reboots you will find a FIXLOG.TXT on your desktop, post it please

2016-01-22 22:36 - 2016-01-20 00:17 - 00449968 ____R C:\WINDOWS\system32\Drivers\etc\hosts.20160122-223622.backup
CMD: ipconfig /flushdns

NOTICE: This script was written specifically for this user, for use on that particular machine. Running this on another machine may cause damage to your operating system

Then open up FRST by Right Clicking on it and select RUN AS ADMINISTRATOR, run a new scan and post the FRST log, I dont need Additions this time