dllhost.exe problems

If I start the computer fresh there appears to be no problem. When I enable thumbnails I start getting spammed with dllhost.exe processes. Malwarebytes Anti-Malware starts showing (varied websites, ports and IP addresses):

Malicious Website Blocked:
Domain: fff5ee.com
IP: 31.184.192.90
Port: 53935
Type: Outbound
Process: C:\Windows\system32\dllhost.exe.

I have downloaded the FRST program, but had a question about when to run it. Do I need to run it with a fresh restart or while the...

dllhost.exe problems