Here's a link to common system processes:
http://www.liutilities.com/products/...ibrary/system/
Go through every process you suspect of being unncessary/viral and put the filename into google. If it's SEAP.exe.. search for SEAP.exe. All your hits will come back about that process.. and whether its necessary or not. Once you find one that isn't necessary, search antivirus sites to see if its associated with a known virus.
There's really no harm to be done if you accidently kill a system process.. it'll require a reboot, but the process will reload automatically. Unfortunately, this is also true for viral processes.. so they must be removed from the computer before they will stop auto-loading themselves as a service..