A reverse shell C script is generated with the IP address and port information received from the user. The code contains a socket program that establishes a TCP connection to the target IP and launches a command line shell (/bin/sh) after the connection is successful. This allows the attacker to connect to the target computer and execute commands.

Reverse shell is an attack method that firewalls and network monitoring systems (IDS/IPS) usually struggle to detect. To prevent this type of attack, careful monitoring and port filtering should be performed on the network.