The two proxies that Whisker posted are from what looks to be an infected computer that is now on a bot network. That basically means IF the user's computer is still infected, those two proxies will ONLY WORK when that computer is online. When they shut there computer off, the proxy will not work because it will not get a response. Try the proxies at different times of the day/week to see when they are online. If not, are you able check your own proxies via a piece of software? If so, then find forum proxy leecher to auto collect a list to scan, OR just go to proxy sites, copy and paste there lists into notepad to run them in your proxy checker.