How to check if a given address is a minecraft server

Given an address and port, how would I use packets to check if the address points to a minecraft server? I've tried using the packets sent to the server when the client opens their multiplayer menu but I'm not having success, and google turned up nothing.

 

It would be a lot easier if you told us what you are trying to accomplish.

 

That's pretty much it. It's for anti-advertising.

 

Here is a little article how to do that even including code examples for various languages:
http://wiki.vg/Server_List_Ping

 

Why not just block any message that matches a Regex?

 

Because I don't want to block every link, just links to servers.

mncat77 I tried that, but nothing after the socket.connect ever fired.