RE: Fast UDP scan

["Henderson, Dennis K." <Dennis.Henderson () umb com>]

Read here:

http://blog.tenablesecurity.com/2007/02/udp_service_and.html

This should help you understand why if you do a generic UDP portscan you
should not exceed 1 port per second. If the server OS rate limits the
ICMP code3 type 3 messages, your scanner may think the port is open.



Dennis
 

> -----Original Message-----
> From: listbounce () securityfocus com 
> [mailto:listbounce () securityfocus com] On Behalf Of Strykar
> Sent: Sunday, August 26, 2007 3:05 AM
> To: pen-test () securityfocus com
> Cc: 'Attari Attari'
> Subject: RE: Fast UDP scan
>
> Read the documentation.
> You can also join #Unicornscan on EFnet.
>
>
>
> -----Original Message-----
> From: listbounce () securityfocus com 
> [mailto:listbounce () securityfocus com] On Behalf Of Attari Attari
> Sent: Saturday, August 25, 2007 11:37 AM
> To: pen-test () securityfocus com
> Subject: Re: Fast UDP scan
>
> Thanks everyone for inputs...
>
> I'm excited about unicornscan however I get this
> error:
> /usr/bin/ld: cannot find -lnet
>
> when doing make...
>
> I'm running Fedora Core 5 so am not able to install the Linux 
> RPM too..
>
> Any idea what's going wrong?
>
> --- Jan Heisterkamp <janheisterkamp () web de> wrote:
>
> > Yes he's looking for Unicornscan, but
> > unicornscan.org is down.
> > You can find it here:
> > Linux rpm: 
> http://rpmfind.net/linux/RPM/sourceforge/o/os/osace/unicornsca
> n-0.4.2-0.i386
> .html
> > or integrated in the OSSTMM Security Audit Correlation Engine there:
> > http://sourceforge.net/projects/osace
> > FreeBSD:
> http://www.freebsd.org/cgi/cvsweb.cgi/ports/security/unicornscan/
> > Regards,
> > Jan
> >
> > Pete Herzog schrieb:
> > > You're looking for Unicornscan:
> > http://www.unicornscan.org/
> > > Fastest scanner EVER.
> > >
> > > -pete.
> > > www-isecom.org
> > >
> > >
> > > Attari Attari wrote:
> > > > Hi Group:
> > > >
> > > > Is there a way to increase speed of UDP scan?
> > > >
> > > > I'm running a full UDP scan since 3 days on 3 IP 
> addresses and it 
> > > > is still not complete.
> > > > I gave following command:
> > > >
> > > > nmap -sU -p1-65535 -P0 xxx.yyy.zzz.aaa
> > > >
> > > > One way I can think of is is running parallel
> > nmap
> > > > scans by dividing ports like:
> > > >
> > > > nmap -sU -p1-30000 -P0 xxx.yyy.zzz.aaa nmap -sU 
> -p30000-65535 -P0 
> > > > xxx.yyy.zzz.aaa
> > > >
> > > > Would appreciate some inputs on this.
> > > >
> > > > Regards
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >       Once upon a time there was 1 GB storage in
> > your inbox. To know
> > > > the happy ending go to
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>       Once upon a time there was 1 GB storage in your inbox. 
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