I agree with Bailey2000
I made the mistake of using smart downloader and have just finished a full day scraping the rubbish out. New toolbars compliments of Spigot mainly. I'm still trying to find out if I can delete ICReinstall safely from my Temp folder. I have 2 PC'd and have removed all reference to CNet from them until it's download process is cleaned up.
Thanks in a large way are due to Revo uninstaller and Malwarebytes with help from Spigot themselves.