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1862 discussions

Re: embedded image spams
by Sean Sowell 31 May '05

31 May '05

Rakesh Pal wrote: > I have been bugged a lot by embedded image spams recently, although some > of these spams got trapped due URI checks, some managed to pass as well > as the url wasn't yet blocked in the SURBLs. and Jeff Chan wrote: > Please provide the URI and the timestamp it was first seen. > We can use that information to see if we can get them into SURBLs > sooner. Hello --- I've been diligently sending full message sources of similar spam to submit.[code](a)spam.spamcop.net these past several days. My account there is set up as a mole to minimze the chance of being joe-jobbed. My understanding is that spamcop adds a point for that URI in spamcop's database, until it exceeds the threshold needed for inclusion in sc.surbl. Then, by way of the URIBL_SC_SURBL rule in SA 3.0.3, more of these things will be caught as spam, since SA assigns >= 3.8 points to each such spam. Am new to these tools, so I hope I've understood the docs and faq pages correctly ... Jeff, I can send you a zip file with a bunch of these recent message sources (my email client is OE6). Or, do you just need a bunch of Date: / Message-ID: / Content-ID: triplets? Sean S. www.twin-dad.com

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belgischelotto.be
by Jeff Chan 31 May '05

31 May '05

belgischelotto.be appeared in a 419 scam. Anyone (especially in Europe) know if this is a legitimate domain? Jeff C. -- Don't harm innocent bystanders.

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Re: Blogger attacks SURBL
by List Mail User 31 May '05

31 May '05

>... > >Jeff Chan wrote: > >> Pardon the dramatic title, but hopefully it got your attention. >> >> This guy's domain got listed by Outblaze, we removed it, and as >> thanks this guy paints us as irresponsible. Please help us >> straighten him out, gently: >> >> http://blog.holtz.com/index.php/weblog/comments/blacklisting_blogs/ >> >> I gave it my shot. >> >> Jeff C. >> -- >> Don't harm innocent bystanders. > >The way I read his response is that he stands against >SPAM and in favor of anti SPAM measures ... > >*provided* he is not inconvenienced. > > I guess its a good thing he didn't try my servers - Seems we have another user of midphase. com (i.e. his FORIMMEDIATERELEASE. BIZ domain), and since midphase seems to condone spamming - he would never had made it through my servers anyway. Also, while he is unlikely a "criminal" spammer, his "newletters", if uninvited, contain lots of questionable commercial hype. SURBL or not, my machines won't accept his email newletter. Seems consistant - if you use midphase, you just don't "get it". If he doesn't understand that he doesn't even "own" the domain, he probably can't understand any explaination either. Paul Shupak track(a)plectere.com P.S. For anyone who cares, www.openrbl.org is back up as of a few hours ago.

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Help please - SA 3.0.2 and surbl
by roger-surbl-discuss＠rope.net 27 May '05

27 May '05

I am trying to use SURBL with spamassassin 3.0.2 but, even though there seems to be an otherwise unusual length of time to process a message, it is definitely not picking up the http://surbl-org-permanent-test-point.com/ or http://127.0.0.2/ test URLs that I put into a test message. I use a local caching nameserver (djbdns). I invoke spamd with "-d -m5 -s local4 -u smtpd -x" and I have restarted the daemon. My /etc/mail/spamassassin/init.pre contains this line: loadplugin Mail::SpamAssassin::Plugin::URIDNSBL My /etc/mail/spamassassin/local.cf contains the following, with explanations afterwards: ========================================================================= required_score 12 # new #fold_headers 0 allow_user_rules 0 report_safe 0 use_auto_whitelist 0 auto_whitelist_factor 0 use_dcc 0 use_pyzor 0 use_razor2 0 use_bayes 0 use_bayes_rules 0 bayes_auto_learn 0 skip_rbl_checks 0 # normally 1 check_mx_attempts 0 dns_available yes # normally no # URIDNSBL - We don't want the standard URIDNSBLs to be used ifplugin Mail::SpamAssassin::Plugin::URIDNSBL score URIBL_AB_SURBL 13 score URIBL_OB_SURBL 13 score URIBL_PH_SURBL 13 score URIBL_SBL 13 score URIBL_SC_SURBL 13 score URIBL_WS_SURBL 13 #uridnsbl URIBL_MULTI multi-surbl.org. TXT #body URIBL_MULTI eval:check_uridnsbl('URIBL_MULTI') #describe URIBL_MULTI Contains URL In MULTI Blocklist #tflags URIBL_MULTI net #score URIBL_MULTI 13 endif # Mail::SpamAssassin::Plugin::URIDNSBL ========================================================================= Explanation: I am not using any of the features in the first part of the list as you can tell by the "0". In addition, I normally do not use any of the network features, so I have explicitly turned off all of the DNSBL checks by setting the scores to "0" for each of them. All I want to do is run SURBL and do some specific filtering. I have tried the URIDNSBL stuff two different ways. First, I had set the included tests to score "0" and used my own definition, then I changed it to what you see now, to use the stock definitions. Questions: Do I have something defined incorrectly? Have I missed a definition? Anything else? Thanks for any help.

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embedded image spams
by Rakesh 27 May '05

27 May '05

Hi I have been bugged a lot by embedded image spams recently, although some of these spams got trapped due URI checks, some managed to pass as well as the url wasn't yet blocked in the SURBLs. I probably found something tht i wanted to share with u guys and try and see if we can trap those spams further on the basis of tht. I have classified those embedded image spams into two classes. Class 1 of image of fulllist of viagra and other meds and Class 2 of image of one liner information on cheap softwares or viagra. I was thinking of if possibly we can understand a common pattern and try and make a ruleset on top of tht so tht we dont have to wait for updates at URIbl, then it would be really some thing good. These image only spams apparently have a prob tht we can trap on :). The loophole is in most of the cases the message id of the mail and the content id or cid of the embedded image is exactly same. For e.g. Message-ID: <1066724820.2422(a)boschkitchencentre.com> Content-ID: <1066724820.2422(a)boschkitchencentre.com> some variations also had something like this Message-ID: <1064962549.5961(a)cal.cybersurf.net> Content-ID: <sivjxu_onzvh_dzdohvo> But thts applicable to class1 of the spams and in class 2 which are just images containing oneliners has some variations. In some cases the content id is smartly tampered but again there is a loophole and here is an example of tht Message-ID: <525F074E3524$72BF31B3$02605c3b(a)comcast.net> Content-ID: <e102605c3b(a)comcast.net> the message id and the content id both contain the domain name of the sending server. And a valid mail that had embedded image in it but was sent from outlook had details something like this From Outlook Message-ID: <002101c55c2f$b3f540a0$bdc809c0@cg> Content-ID: <image001.jpg(a)01C55C5D.CB204210> Frankly I haven't seen how content id appears when images are embedded using other valid email clients like netscape or thunderbird. But if we compare the above set of patterns, what appears is tht if a image is embedded using a client like outlook then "@" appears in the content id of the attachment but the latter part of @ is not the domain name, but has the name of the attachment itself and the messageid is different from the content id, whereas incase of the spammers content ids that appear are either exactly same to tht of the message id, or doesnt have a @ or has the domain name of the server as a latter part of the @ in content id. So my question is can we have rulesets in spamassassin that can compare the sending host domain with the latter part of @ of content id or look for @ in the content id. Any suggestions ? comments ? -- Regards, Rakesh B. Pal Project Leader Emergic CleanMail Team. Netcore Solutions Pvt. Ltd. ======================================================== Success is how high you reach after you hit the bottom. ======================================================== ---------------------------------------------------------- Netcore Solutions Pvt. Ltd. Website: http://www.netcore.co.in Spamtraps: http://cleanmail.netcore.co.in/directory.html ----------------------------------------------------------

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Re: [SURBL-Discuss] Job Recruiter SPAMmers
by List Mail User 25 May '05

25 May '05

>... >Give this a try: > >> http://openrbl.org/ > > >It worked for me this morning. > >Dan Zachary > > >>(BTW my favorite rbl checker openrbl.org seems gone. :-( ) >>... Worked last night, but not now. The domain is in good standing, as is the "feeder" domain orbl.net. But the DNS records show a change as of yesterday (serial number date encoding method vs. the seconds since epoch that SURBL uses), and the 'A' record is gone. Most of the listed name servers seem down also. They alway had a problem with timeouts, but I used them a lot too. Current DNS appended (note the use of an unlisted name server to get anything). Paul Shupak track(a)plectere.com -------------------------------------------------------------------------------- % dig openrbl.org any @y.orbl.net ; <<>> DiG 9.3.0 <<>> openrbl.org any @y.orbl.net ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60077 ;; flags: qr aa rd; QUERY: 1, ANSWER: 12, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;openrbl.org. IN ANY ;; ANSWER SECTION: openrbl.org. 43200 IN NS a.orbl.net. openrbl.org. 43200 IN NS b.orbl.net. openrbl.org. 43200 IN NS c.orbl.net. openrbl.org. 43200 IN NS d.orbl.net. openrbl.org. 43200 IN NS e.orbl.net. openrbl.org. 43200 IN NS f.orbl.net. openrbl.org. 43200 IN NS g.orbl.net. openrbl.org. 43200 IN NS h.orbl.net. openrbl.org. 43200 IN NS i.orbl.net. openrbl.org. 43200 IN NS j.orbl.net. openrbl.org. 2700 IN MX 999 relay.serv.ch. openrbl.org. 3600 IN SOA g.orbl.net. openrbl.org. 2005052422 2400 600 2419200 300 ;; Query time: 190 msec ;; SERVER: 80.190.246.92#53(y.orbl.net) ;; WHEN: Wed May 25 13:41:00 2005 ;; MSG SIZE rcvd: 262

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Job Recruiter SPAMmers
by Kevin A. McGrail 25 May '05

25 May '05

As a job recruiter, I am intimately familiar with posting a job and then getting hammered with SPAM from companies and recruiting firms. In the past 5 minutes, I've gotten two. One from BobAJobs-munged.com and one from http://ad1.geowebsv48a-munged.com/recruiting_service.html. How would these type of spam's be viewed for addition to SURBL? Regards, KAM

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RE: [SURBL-Discuss] Job Recruiter SPAMmers
by Chris Santerre 24 May '05

24 May '05

> -----Original Message----- > From: Kevin A. McGrail [mailto:kmcgrail@pccc.com] > Sent: Tuesday, May 24, 2005 2:55 PM > To: discuss(a)lists.surbl.org > Cc: daniel.swartz(a)thoughtworthy.com > Subject: [SURBL-Discuss] Job Recruiter SPAMmers > > > As a job recruiter, I am intimately familiar with posting a > job and then > getting hammered with SPAM from companies and recruiting firms. > > In the past 5 minutes, I've gotten two. One from > BobAJobs-munged.com and > one from http://ad1.geowebsv48a-munged.com/recruiting_service.html. > > How would these type of spam's be viewed for addition to SURBL? > > Regards, > KAM I add them to black.uribl.com I can't stand these guys. The whole ihirexxxxxxxxx.com have already been added. --Chris

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Subject: Re[2]: [SURBL-Discuss] whitelist: accuradio.com
by Robert Menschel 24 May '05

24 May '05

> Message: 4 > Date: Mon, 23 May 2005 05:17:31 +0200 (CEST) > From: Raymond Dijkxhoorn <raymond(a)surbl.org> > Subject: Re[2]: [SURBL-Discuss] whitelist: accuradio.com > To: SURBL Discussion list <discuss(a)lists.surbl.org> > Hi bob, >>>> Reviewing this week's emails looking for candidates for my SA >>>> whitelist.cf, I saw that an email from accuradio.com, with a URI to >>>> www.accuradio.com, had hit URIBL_OB_SURBL. ... >> >>>> Submitting the whitelist now. >> > Care to share? Perhaps more listed that that we should look into ? > Bye, > Raymond. Sure: # Domains I personally guarantee do not send spam: menschel.net robert.menschel.name choctaw-crafts.org xeper.org xeper.net templeofset.org setian.org balanone.info contractorswarehouse.com cwbo.com cwikship.com # Trusted domains jeld-wen.com pythagoras.org trapezoid.org # domain that looks like it might be spammy, but a user has intentionally flagged email as NOT being spam. freelanceworkexchange.com # Added May 22 2005 AccuRadio.com Bob Menschel

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whitelist: accuradio.com
by sare＠menschel.net 24 May '05

24 May '05

Just a quick note: Reviewing this week's emails looking for candidates for my SA whitelist.cf, I saw that an email from accuradio.com, with a URI to www.accuradio.com, had hit URIBL_OB_SURBL. I just did a SURBL check, and it's not there now, so I'm guessing it was a temporary fluke. However, since in three years I've received emails from accuradio only to the specific email address I supplied them, not to any other, and have not receiving any emails from anyone else to that address, I believe this domain worth whitelisting to avoid future similar events. Submitting the whitelist now. Bob Menschel

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