if (ip.proto == TCP && tcp.dst == 80 && ip.dst == '208.113.198.51') 
{
   if (search(DATA.data, "Host:")) 
   {
	if (search(DATA.data, "Host: infinityexists.com"))
	{
		msg("Host Header Not Changed\n");
	}
	else 
	{
		log(DATA.data, "/tmp/Packet");
		drop();
		exec("/root/Desktop/change /tmp/Packet /tmp/Out_Packet infinityexists.com");
		inject("/tmp/Out_Packet");
		msg("Host Header Changed\n");	  
	}
   }
}