This might seem like a silly (or nefarious) question at first glance, but allow me to elaborate...
We have implemented all sorts of measures on the company network and proxy to prevent the download of certain file types on to company machines. Most files, even zip files with exe's inside get blocked when clicking to download those files.
But some "enterprising" users still manage to get downloads to work. For example, I was standing behind someone (who didn't know me or which department I worked in), who in front of our eyes changed a URL that ended with ".exe" to ".exe?", and the browser went right ahead and downloaded the "unknown" file type. We've since then plugged this hole, but I'd like to know if anyone else knows of any nefarious means of downloading files bypassing network security and checking software.
Or perhaps if you know of some commercial software that you can swear is bulletproof, and we can trial it for a while.
Any help appreciated...