Developer's Guide to Web Application Security

Two common Trojan horse remote control programs are Back Orifice and NetBus.

Back Orifice consists of two key pieces: a client application and a server applica-

tion. The way Back Orifice works is that the client application runs on one

machine and the server application runs on a different machine. The client appli-

cation connects to another machine using the server application. However, the

only way for the server application of Back Orifice to be installed on a machine is

to be deliberately installed. This means the hacker has to install the server appli-

cation on the target machine, or trick the user of the target machine into doing

so. Hence, the ...