You usually have to just look around; googling whitepaper can usually turn up quite a few things :P...

Well, you're not just going to be able to find some unsecure remote app running on someones system, most people don't have the need to install them in the first place, and most people are behind routers anymore so you've got the firewall in place...

Most of the time, you'll be looking at exploiting a flaw in the version of windows someone is running, thats where a whitepaper on a "fix" would come in...
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