By executing the netstat ??“an command again from the target computer
you will notice that port 23 is now listening for connections.
Redirection 625
From the directory containing the netcat executable on the attacking
computer we want to try to connect to our victim by typing:
nc ??“v
In this example, we type nc ??“v 192.168.1.128 23. The ??“v option tells
netcat to run in verbose mode to show the activity.
From the attacking computer, we now have a C: prompt displayed. Could
this be the target?
626 Practical Hacking Techniques and Countermeasures
To verify, type ipconfig and press Enter.
As you can see, we now have a C: prompt on the target computer.
*Note: Elitewrap is an excellent ???wrapping??? tool and is very effective against those computers
with outdated or no antivirus software. Once the attacker presses Ctrl+C
to break the connection, the port will stop listening on the target computer.
Redirection 627
Lab 88: TCP Relay: Bypass Firewalls
Traffic Redirection: Fpipe
Prerequisites: None
Countermeasures: Log monitoring, strong (ACLs)
Description: Firewalls are used to filter undesired network traffic. Port
redirection allows you to bypass that restriction by forwarding traffic
through allowed ports on the firewalls.
Procedure: Set the parameters, execute, and verify results.
In this example, we want to verify the IP address of the Web server by
typing ipconfig and pressing Enter.
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