As postmaster, I see a lot of double-bounces for a user who forwards their
mail to a server that implements the policy:
550 5.7.1 mail containing 8aa.tXokG4N.fagonyenomy.org rejected -
sbl; see http://www.spamhaus.org/query/bl?ip=201.3.240.234
They appear to be using the milter mentioned in
http://www.surbl.org/faq.html#numbered
Sure, fagonyenomy.org is in sc.surbl.org now, but these cretins register
new domains pointing at the same IPs on a (at least) daily basis, and there
is a time lag. The site they were spamming about this morning,
thebest-search.com.sc.surbl.org, exists only on ob.surbl.or, not sc or ws.
For the reasons mentioned in the FAQ, I do not agree with uri-to-ip-based
blacklisting as a blanket policy, but it does seem very effective in
dealing with these rapidly morphing porn spammers. I would like to give
such a rule a SA score of 4 or so.
In order to implement this nicely, I see a need for a *per surbl* switch in
SpamCopURI telling it whether to look up the domain, or the domain as
resolved to an IP. Configured something like
uri SPAMCOP_URI_RBL eval:check_spamcop_uri_rbl('sc.surbl.org','127.0.0.2')
uri SPAMHAUS_URI eval:check_spamcop_uri_rbl('sbl.spamhaus.org','127.0.0.2','ip')
Obviously there is no point in looking up fagonyenomy.org in spamhaus, nor
do I want to look up all resolved IPs in all surbls needlessly. I could
write completely separate code to do this, but I'd like to reuse the
url and redirector parsing infrastructure. Unfortunately I don't see a
clean way to do this without changing the internal hash structure.
Ideas?
Should I just wait for (or start experimenting with now) SA3's uridnsbl and
urirhsbl, which were designed for this? Yeah, that's what I was afraid
of...
I think I just answered my own question, but I'm curious what others think
and how others are dealing with this spam gang. I can't wait for a big ISP
to hit them with the big clue stick.
--
Rich Graves <rcgraves(a)brandeis.edu>
UNet Systems Administrator
>-----Original Message-----
>From: Patrik Nilsson [mailto:patrik@patrik.com]
>Sent: Tuesday, August 03, 2004 3:10 PM
>To: SURBL Discussion list
>Subject: Re: [SURBL-Discuss] Hmmm....what if?
>
>
>At 17:47 2004-08-03 +0100, Karanbir Singh wrote:
>>Chris Santerre wrote:
>>>What if I placed an SURBL server in the beginning of my DNS
>query list? Then
>>>users would actually check SURBL for a domain in a web page.
>If it is in
>>>SURBL they will get a 127.0.0.x and get error. Which is good!
>>
>>Works! All you need to do is add the multi.surbl.org ( or
>whatever list
>>you want to use ) to the Host Search order. So that x.com is
>looked up as
>>x.org.multi.surbl.org
>
>This would only work for x.com, not www.x.com, etc.
>The SURBL servers - correctly - return NXDOMAIN when queried
>for subdomains
>of listed domains, rather than treat the listed domains as wildcards.
>
>Also - this generates a lot of unnecessary dns queries for
>non-listed domains.
I hate to say it.....but... Patrik is right :)
--Chris
At 12:11 2004-08-03 -0400, Chris Santerre wrote:
>What if I placed an SURBL server in the beginning of my DNS query list? Then
>users would actually check SURBL for a domain in a web page. If it is in
>SURBL they will get a 127.0.0.x and get error. Which is good!
>
>Am I missing something, or is it that easy?
Your users would query for the RR host.domain.com, not the RR
domain.com.multi/xx.surbl.org.
Patrik
What if I placed an SURBL server in the beginning of my DNS query list? Then
users would actually check SURBL for a domain in a web page. If it is in
SURBL they will get a 127.0.0.x and get error. Which is good!
Am I missing something, or is it that easy?
Chris Santerre
System Admin and SARE Ninja
http://www.rulesemporium.comhttp://www.surbl.org
'It is not the strongest of the species that survives,
not the most intelligent, but the one most responsive to change.'
Charles Darwin
>-----Original Message-----
>From: Karanbir Singh [mailto:mail-lists@karan.org]
>Sent: Tuesday, August 03, 2004 12:48 PM
>To: SURBL Discussion list
>Subject: Re: [SURBL-Discuss] Hmmm....what if?
>
>
>hey,
>
>Chris Santerre wrote:
>> What if I placed an SURBL server in the beginning of my DNS
>query list? Then
>> users would actually check SURBL for a domain in a web page.
>If it is in
>> SURBL they will get a 127.0.0.x and get error. Which is good!
>
>Works! All you need to do is add the multi.surbl.org ( or
>whatever list
>you want to use ) to the Host Search order. So that x.com is looked up
>as x.org.multi.surbl.org
>
>Whatever DNS servers you are using at the time, should keep working +
>Caching.
>
>I run this at a few places. Works well across a squid proxy, specially
>since u can then have a real page on the 127.0.0.x interface ( = the
>gateway machine's ) telling your users what happened.
>
>Is this what you had in mind ?
>
VERY COOL! Thanks! Now if only I could get Win98 to actually listen to the
search order! :)
--Chris
imagestation.com is listed in WS.
It's a Sony domain.
Searching NANAS, I can't find any recent reports mentioning imagestation.com.
Outgoing imagestation.com mail servers, such as zms0.imagestation.com, are
listed in AUDNSBL and SORBS - as servers sending to spamtraps.
But they are not listed in SBL or Spews.
So... it's ambiguous.
I assume that there are quite a few willing subscribers to the imagestation
news letters though, so there is probably a high level of collateral damage
if it's listed.
Patrik
>-----Original Message-----
>From: Raymond Dijkxhoorn [mailto:raymond@prolocation.net]
>Sent: Monday, August 02, 2004 4:48 PM
>To: Jeff Chan; SURBL Discussion list
>Subject: Re: [SURBL-Discuss] FP's in ws.surbl.org
>
>
>Hi!
>
>> > OUCH I'm farther behind then I thought!! I have 2 lists,
>one 416 domains,
>> > the other 347 domains. All to be checked. And that's not
>all!!!! So if two
>> > people would each take a list, I could work on the other 500+.
>
>> Looks like we need a clearinghouse so multiple people can help
>> check these. It needn't be the fancy one Paul proposed; just
>> some way to distribute them.
>>
>> Does anyone have a trouble ticket system already running that
>> we could use and feed these into?
>
>We allready worked away the backlog, so pump in some new ones.
>Chris is
>bored :) heh.
>
>Ohw, btw, we just passed the 40k domains on WS.
>
Yeah if I get swamped again I just might send up the red flag here for some
people to help like yesterday. Was a big help! I have more to add today ;)
--Chris