[Request] Anti Flood plugin for cod4 server ?

hi guys
sorry i am not sure where is the suitable section to write down this thread ...

In the cod 4servers, its becoming more frequent that hackers are adding anti-rcon functions(called ddos attack or network attack ). What these functions do is send rcon commands to the server blocking the RCON by flooding the server with these commands so its unresponsive for hours. What im asking for is a plugin that reads the console log of the server to look for bad rcon commands. They are always noted in the console log as

Bad Rcon from (IP)
(command sent)

The IP is of the person who sent it and the command shows what they sent. If someone can make a plugin that counts these and after a certain number of times, then the plugin will issue a kick or ban for this connection . ??

so guys i need your help ...
its very important for me and very very useful plugin ...

well , i am an esports head admin for a whole country . and my servers are the only good servers in that area ( many many players play on our servers from 10 different countries ! ) ,
so, every cheater i ban on a certain evidence and pass the ban to PBBans or ggc ,his first act is that flooding !
you maybe dont know this prob . but i face it every 3 days !
more explanation :
we know that cod4 server is a regular server that can send and receive data . so the cheater is flooding the server by sending thousands of bad RCONs in a minute for two reasons :
1- to prevent admins from banning him when he uses a clear known multihack or aimbot .
2- to ruin a match in one of my clan wars servers by flooding the server and resulting a lag sometimes for the server !

so it is a known prob ! (want me to flood your server ? xD )

here what i ask is a simple plugin to prevent and block a certain ip's or connections from sending bad commands.

thank you.