Help Removing Last Traces of Genieo
Thank you; but I figured it out. I created a Test account on the computer to see if it was a system thing or user thing; turned out to be a system thing.

I then went poking around but limited my searching to the system library, and found the offending file: it was in the LaunchAgents folder, and it was 

com.vsearch.agent.plist

Put that in the Trash, rebooted, emptied the Trash, and the problem went away.