RE: Fast UDP scan

From: Henderson, Dennis K. (Dennis.Henderson@umb.com)
Date: Wed Aug 29 2007 - 12:18:53 EDT


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
> > >>
> >
> http://help.yahoo.com/l/in/yahoo/mail/yahoomail/tools/tools-08.html
> > >>
> > >>
> >
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>
> Once upon a time there was 1 GB storage in your inbox.
> To know the happy ending go to
> http://help.yahoo.com/l/in/yahoo/mail/yahoomail/tools/tools-08.html
>
>
> 5, 50, 500, 5000 - Store N number of mails in your
> inbox. Go to
> http://help.yahoo.com/l/in/yahoo/mail/yahoomail/tools/tools-08.html
>
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> This list is sponsored by: Cenzic
>
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> ----------
>
>
> --------------------------------------------------------------
> ----------
> This list is sponsored by: Cenzic
>
> Need to secure your web apps NOW?
> Cenzic finds more, "real" vulnerabilities fast.
> Click to try it, buy it or download a solution FREE today!
>
> http://www.cenzic.com/downloads
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