NetCat - Simple TCP Reverse Shell to Linux from Windows 7 Tutorial

In this scenario, Alice needs help from Bob. However, Alice has no control over the router in her office, and therefore cannot forward traffic from the router to her internal machine. Is there any way for Bob to connect to Alice's computer, and solve her problem? Here we discover another useful feature of Netcat, the ability to send a command shell to a listening host. In this situation, although Alice cannot bind a port to /bin/bash locally on her computer and expect Bob to connect, she can send control of her command prompt to Bob's machine, instead. This is known as a reverse shell. To get this working, Bob needs to set up netcat to listen for an incoming shell.