ProRat is a Microsoft Winows based backdoor trojan horse, more commonly known to script kiddies as a RAT (Remote Administration Tool). As with other trojan horses it uses a client and server. ProRat opens a port on the computer which allows a script kiddy with the client to perform numerous operations on the server (the machine being controlled). ProRat is available in a free version, and a paid version. In the free version, ProRat cannot connect to users over wireless networks, only over L.A.N (Local Area Network). ProRat is known for its server to be almost impossible to remove without up-to-date antivirus software.