What is the function of 'reverse_tcp_allports'?

• A. It binds to a single port for an inbound connection.
• B. It cycles through outbound TCP ports to reach back for commands to pass the stage.
• C. It only works on IPv4.
• D. It uses all ports for inbound connections.

Answer: (D)

The function hinges on how a reverse TCP payload establishes a session. In a reverse TCP setup, the compromised host connects back to the attacker to deliver the shell. The variant that uses all ports expands this by allowing the inbound callback to come through any port on the attacker's side. In other words, the payload is prepared to reach back to the attacker using every possible port, so the attacker’s listener can accept the connection regardless of which port the target picks. That is why it’s described as using all ports for inbound connections.