^http:\/\/.+?\.ws\.microsoft\.com\/.+?_([0-9a-z]{40})\.(cab|exe|ms[i|u|f]|asf|wm[v|a]|dat|zip|psf|appx) http://wupdate.squid.local/$1 ^http:\/\/.+?\.windowsupdate\.com\/.+?_([0-9a-z]{40})\.(cab|exe|ms[i|u|f]|asf|wm[v|a]|dat|zip|psf|appx) http://wupdate.squid.local/$1 ^http:\/\/[^\.]+\.cs\.steampowered\.com\/(.*) http://steamupdates.squid.internal/$1 ^http:\/\/[^\.]+\.phobos\.apple\.com\/(.*) http://appupdates.apple.squid.internal/$1