HI,
When you scan; do you mean such as using Spyware scans, like AdAware?
The "owner" of the cookies will the website the cookie is for.
If you are referring to spyware scans, there is a free, very good, program I use that will block these from gettting into the computer in the first place.
It's called SpyWare Blaster from
http://www.javacoolsoftware.com/sbupdate.html
I do wish you the best. And, if you mean something different, please post back.