You have some serious things missing:
No antivirus program
No spyware/adware programs
No firewall
No Java
Malwarebytes appears to have done a good job, but you're not going to stay that way: Check the following:
Step 2
If you`re NOT running any antivirus or firewall software, you should install some ASAP If you already have an Anti-virus program - please be sure to check for updates and run a full scan of your system - Please note anything that it finds in your thread.
Recommended Free Anti Virus:
Avira Free
Avast Free
Recommended Free Firewall:
Comodo
Zonealarm
Links are here:
https://www.techspot.com/vb/topic112292.html
Many types of malware like to exploit out of date Java versions! You can manually install the most recent version of Java here:
https://www.techspot.com/downloads/6463-java-se.html
Please run Step 5
SuperAntiSpyware Home Edition Free Version:
https://www.techspot.com/vb/topic112292.html
Open HijackThis and scan. Chech the following processes:
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
http://www.zpecialoffer.com/indexie.html
O2 - BHO: Browser Address Error Redirector - {CA6319C0-31B7-401E-A518-A07C3DB8F777} - c:\windows\system32\BAE.dll
Close all other programs. Check Fix in HajackThis and reboot into Normal Mode
Repeat the Malwarebytes scan and run HijackThis in Normal mode
Attach logs when through.