Script que faz varredura de portas TCP e varreduras ping. Você pode escolher as portas a serem varridas ou deixar sem argumentos para varrer todas as portas. Também exibe os serviços da porta.

100% feito por mim! :)

Forma de uso:

$ perl scan.pl

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Esconder código-fonte

#!/usr/bin/perl

use Socket;
#use strict;            LEMBRAR DE TERMINAR DE POR MY NAS VARIAVEIS

sub banner{
   print<<EOF;
   Usage: $0 args host
   Where 'args' is:
   -p <port1,port2...> (standard is all). Ex: 80,100,1-1024
   -sP host (ping scan)
EOF
   exit;
}
sub all{
   socket(SOCK,AF_INET,SOCK_STREAM,getprotobyname('tcp'));
   print "Scanning ports on $ARGV[0]...\n\n";
   print "$saida";
   my $hr=times;
   for(my $port=1;$port<=6000;$port++){
      my $host=inet_aton($ARGV[0]) || die "Impossivel resolver host\n\n";
      $host=sockaddr_in($port,$host);
      my $serv=getservbyport($port,'tcp') || 'UNKNOW';
      connect(SOCK,$host)?print"$port\t$serv\t\ttcp\t\topened\n":"";
   }
   my $hr1=times;
   $hr1-=$hr;
   print "\nAll ports of the $ARGV[0] scanned in $hr1 seconds\n";
   close(SOCK);
}
sub just{
   socket(SOCK,AF_INET,SOCK_STREAM,getprotobyname('tcp'));
   $port=$ARGV[1];
   my @ports = split(/,/,$port);
   my $cont=0;
   for $port (@ports){
      push(@range,split(/-/,$port)) if $port=~/-/;
      $ports[$cont]="" if $port=~/-/;
      $cont++;
   }
   print "Scanning port(s) on $ARGV[2]...\n\n";
   print "$saida";
   $hr=times;
   while(@range){
      my $in=shift(@range);
      my $out=shift(@range);
      my $res=$out-$in;
      if($in<$out){
         for($in..$out){
            $host=inet_aton($ARGV[2])|| die "Impossivel resolver host\n\n";
            $host=sockaddr_in($_,$host);
            $serv=getservbyport($_,'tcp') || 'UNKNOW';
            my $tam=length($serv);
            connect(SOCK,$host)?$tam>7?print"$_\t$serv\ttcp\t\topened\n":print"$_\t$serv\t\ttcp\t\topened\n":$tam>7?$res>14?"":print"$_\t$serv\ttcp\t\tclosed\n":$res>14?"":print"$_\t$serv\t\ttcp\t\tclosed\n";
         }
      }else{
         for($out..$in){
            $host=inet_aton($ARGV[2])|| die "Impossivel resolver host\n\n";
            $host=sockaddr_in($_,$host);
            $serv=getservbyport($_,'tcp') || 'UNKNOW';
            $tam=length($serv);
            connect(SOCK,$host)?$tam>7?print"$_\t$serv\ttcp\t\topened\n":print"$_\t$serv\t\ttcp\t\topened\n":$tam>7?$res>14?"":print"$_\t$serv\ttcp\t\tclosed\n":$res>14?"":print"$_\t$serv\t\ttcp\t\tclosed\n";
         }
      }
   }
      for $port(@ports){
         next if $port eq "";
         $host=inet_aton($ARGV[2]) || die "Impossivel resolver host\n\n";
         $host=sockaddr_in($port,$host);
         $serv=getservbyport($port,'tcp') || 'UNKNOW';
         $tam=length($serv);
         connect(SOCK,$host)?$tam>7?print"$port\t$serv\ttcp\t\topened\n":print"$port\t$serv\t\ttcp\t\topened\n":$tam>7?print"$port\t$serv\ttcp\t\tclosed\n":print"$port\t$serv\t\ttcp\t\tclosed\n";
      }
      $hr1=times;
      $hr1-=$hr;
      print "\n(The ports scanned but not shown below are in state closed)" if $res>14;
      print "\nPort(s) scanned in $hr1 seconds\n";
      close(SOCK);
}
sub ping{
   use Net::Ping;
   $p=Net::Ping->new;
   $p->ping($ARGV[1])?print "host $ARGV[1] is alive\n":print "host $ARGV[1] is unreachable\n";
   $p->close;
}
our $saida = "port\tservice\t\tprotocol\tstate\n"."-"x 46 . "\n";
$ARGC=@ARGV;
if($ARGC < 1){
   &banner;
}
if($ARGV[0] eq '-p'){
   &banner if $ARGC<3;
   &just;
}elsif($ARGV[0] eq '-sP'){
   &banner if $ARGC<2;
   &ping;
}elsif($ARGC == 1){
   &all;
}

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