is there a Trojan that utilizes dllhost.exe Surrogate COM? an abnormal number of copies are running.

About 2 weeks ago I noticed my computer running slower than normal. I opened task manager and saw there were multiple copies of dllhost.exe Surrogate COM running and using a lot of system resources. There seems to be some correlation to rundll.exe because there have been circumstances where they are both running the same number of instances according to Webroot.
 
I looked around on line and learned that there are a couple of Trojans and rootkits that utilize Surrogate COM to relay data back to the folks who plant the malware in the system. Your software doesn't show any issues. How can I fix this?
 
Thanks...