RE: Under attack

["Guy Hadsall" <ghadsall () telcordia com>]

Allan,

You are doing the right things, and blocking their IP blocks from your
border router is the next thing I too would recommend.

On the topic of "who do I report them to?" you can start with the Hong
Kong CERT team.  Unfortunately is not a member of the F.I.R.S.T. (Forum
for Incident Response Security Teams) organization.  Hong Kong does not
have an official CERT listed with FIRST.  Several of their neighbors are
though, so maybe if you fire off a question to the Japan or Taiwan CERT
teams they can help point you in the right direction.

You can find them by checking out, or eMailing, the website
www.FIRST.org.  Last time I checked they, as well as their neighbors,
were active members of this international CERT organization.  Fire off a
note to the FIRST team coordinator too, maybe they can help too.

On the topic of an international CERT they've been attempted and
fortunately have not yet taken hold.  The WIPO folks tried the other
year, and the UN has eyes for such a team too.  Fear it for regulations
sake... Internet liberty is to be guarded and not easily given away.

GuyH



-----Original Message-----
From: R. DuFresne [mailto:dufresne () sysinfo com] 
Sent: Thursday, July 25, 2002 7:20 AM
To: Allan Tagliaferro
Cc: 'firewall-wizards () honor icsalabs com'
Subject: Re: [fw-wiz] Under attack





On Thu, 25 Jul 2002, Allan Tagliaferro wrote:

> Hi all,
>
> We are using Raptor 6.5 on a NT box, at present we are getting a lot
of
> inbound attempts being made by a Hong Kong ISP, I have sent several
emails
> notifying them of this but no changes have occurred, the connections
are
> unauthorized by gwcontrol so they fail. I've tried several times to
include
> rules using a subnet of the IP range that this ISP uses but for some
reason
> the rules are not stopping the attempts rather it just fails due it
being
> unauthorized. I'm happy they are not getting through but am I feel
like I've
> lost control.


It sounds like you have stopped them, though, you seem to be getting
annoying log messages about the attempts.  You could just block the IP
block of the offending ISP at your border or screening router.  This
keeps
from having the annoying log messages from hitting you with alerts and
such.

> Can anyone please let me know how to successfully block an IP range
from
> entering our network. Also I would keen to know if there is an
institute
> that can be contacted to inform of these attempts ( a governing body
of
> sorts).

Tis a shame there is no such thing, yet, it would be hard to put some
universal/international organization together that all other nations
would
be forced to comply with, afterall, we don't even have the ability for
all
nations to agree to or deal with extradition in a coherent manner
accorss
all borders.  It's even more confounding when one understands that there
are no standards enforced on the net about how ISP's and different
connected organisations and companies should handle abuse complaints.
Well there is a standard, but, like many, it's not followed by all and
certainly there is not governing body to enforce it.  But, we try to
contact abuse () offending com and/or security () offending com <replacing
offending.com with the domain in question>.  You can get the info you
seek
on the offenders in question by querying the specific domain servers for
the regoin you are being hit by.  And, rather then point you at each one
of those regional domain servers, we'll point you at two sites that will
query the proper one for you via nslookup queries:

whois.thur.de

and

whois.geektools.com

Understand, even if the ISP of the offender has an abuse or security
address taking complaints, there's nothing to ensure that anyone will
take
action on your complaints.  But, it's better to try then to do nothing,
as
this is changing muchly in recent years.  Also be aware that many sites
get tons of these replies, and so, you might get nothing back but a
canned
reply, if anything.  As a last resort, if you speak the language of the
others on the offending ISP site, you might try placing a call to tech
folks, or additionally contacting their upstream provider<s>
(traceroute).

Thanks,  good luck,

Ron DuFresne
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        admin & senior security consultant:  sysinfo.com
                        http://sysinfo.com

"Cutting the space budget really restores my faith in humanity.  It
eliminates dreams, goals, and ideals and lets us get straight to the
business of hate, debauchery, and self-annihilation."
                -- Johnny Hart

testing, only testing, and damn good at it too!

_______________________________________________
firewall-wizards mailing list
firewall-wizards () honor icsalabs com
http://honor.icsalabs.com/mailman/listinfo/firewall-wizards


_______________________________________________
firewall-wizards mailing list
firewall-wizards () honor icsalabs com
http://honor.icsalabs.com/mailman/listinfo/firewall-wizards