Blocking Traffic on Trojan Ports?

Hi what are peoples thoughts on completly closing and blocking all the common Trojan ports??

this should be quite an effective way to block Trojans from coming on your pc right?

but seen how the lists are quite big it would be quite time consuming to add all these closed port rules to LNS.

http://www.doshelp.com/Ports/Trojan_Ports.htm
http://www.petri.co.il/trojan_ports_list.htm
http://www.nthelp.com/trojan_ports_list.htm

So what would be the easiest quickest way to add the rules to LNS?

 

Hi,

It is better to identify the ports your need, then you create rules to allow only these ports and you block everything else.

Frederic

 

I'm wonder with something :
1.If one application actives some ports and there's a rule allows these ports.
under this status, this app can connect with internet.and internet also can connect with your PC through these ports.

when closed the app. these ports can shield by LNS as soon as the app cloesd? internet can connect with PC this time ?

 

Yes, the port will be blocked again as soon as the application disconnects, and no connection from internet is accepted on that port.

Frederic