Back Orifice

Back Orifice (often shortened to BO) is a controversial computer program designed for remote system administration. It enables a user to control a computer running the Microsoft Windows operating system from a remote location. The name is a pun on Microsoft BackOffice Server software.Back Orifice was designed with a client-server architecture. A small and unobtrusive server program is installed on one machine, which is remotely manipulated by a client program with a graphical user interface on another computer system. The two components communicate with one another using the TCP and/or UDP network protocols. In a reference to the Leet phenomenon, this program commonly runs on port 31337.
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