I recently had my computer cleaned by a local professional. I currently run Panda Free Antivirus and Malwarebytes Anti-Malware (Premium). While surfing the web in IE11, I become infected with the dllhost.exe com surrogate virus. The only solution I've found for this issue is to run ComboFix. I've had to clean this up a couple times now with ComboFix.
Why doesn't my antivirus software prevent the dllhost.exe com surrogate virus from taking hold? Is there something I can do to prevent it from infecting my computer again?