sorry, i'm just thinking as i go - i wasn't actually suggesting you do anything
but maybe you could block 888.com in your firewall
there is the inbuilt one in osx or if you are on a router use the setting on that
You can block 888.com if you want, but that won't remove the root cause.
Those first three options, 'Enable plugins, java, and javascript' Disable them for the time being, see if that stops it