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Statisztikai spamszűrők
Hatékony védelem a spam ellen




   Sütő János (sj@acts.hu)
Graham - Plan for spam
Dekódolás, tokenekre bontás
Valószínűség és érdekesség
Döntési mátrix felépítése

   enhanced+libido 0,9999
   Subject*impress 0,9934
   triples         0,9311
   absolutely      0,8933
Statisztikai összegzés

       HAM       ???         SPAM




0%                     91%      100%
Token adatbázis
Tanítás
Tanítás mennyisége vs. idő
Pontosság vs. idő
Fehérlista

0. SQL táblában tárolt minták

1. Név, email, domain, IP-cím, FQDN

2. „From:” sor alapján
Csapda email cím + aknamező =
    intelligens feketelista
„Nehéz pontosan meghatározni
    a határértéket . . .”

           “...Ha túl magas, akkor
           kevés spamet ismer fel,
           ha túl alacsony, akkor
           sok jó levelet is elve-
           szítünk.”
Valószínűség eloszlás




Forrás: http://spambayes.sourceforge.net/images/chi2_graph.png
A szakértő megmondja
          „Egy embernél jól
          működhet, de 10000-
          nél már nem”

          „... később komoly
          csalódás éri a té-
          ves biztonságérzetű
          felhasználót”

          „A spammerek legú-
          jabb trükkjeit nem
          ismeri fel”
„A Bayes-alapú
technológiák
megbízhatósága
kétséges, két-
ségbe vonható”
Mikro/piko spam
Return-Path: <vpwwcomrigvri@yahoo.com>
X-Original-To: sj@xxxx.hu
Received: from av-engine (localhost [127.0.0.1])
        by xx.xxxx.hu (Postfix) with SMTP id E04CC17013
        for <sj@xxxx.hu>; Mon, 21 Jul 2008 04:38:58
Received: from 194.xx.xx.xx (unknown [58.248.77.145])
        by xx.xxxx.hu (Postfix) with SMTP id ABD1617012
        for <sj@xxxx.hu>; Mon, 21 Jul 2008 04:38:57
Received: from 22.185.62.188 by Sun,20 Jul 2008 21:35:59
Message-ID: <C[20
Date: Mon, 21 Jul 2008 04:38:57 +0200 (CEST)
From: vpwwcomrigvri@yahoo.com
To: undisclosed-recipients:;
FROM*yahoo.com                0.9507 1
NO_SUBJECT*                   0.9999 1
HEADER*undisclosed-recipients 0.8764 1

level84: 0.9995 in 68 [ms]
Received: from mx2.xxxx.hu (mx2.xxxx.hu [195.xx.xx.xx])
Received: from [200.158.63.250
    (200-158-63-250.dsl.telesp.net.br [200.158.63.250])
Received: from [200.158.63.250] by
    mail2.newfashionproducts.com; Wed, 23 Jul
    Hora oficial do Brasil
From: <nuyicjfry@bmount.com>
To: <sj@xxxx.hu>
Subject: Vulcan!
Date: Wed, 23 Jul   Hora oficial do Brasil
Content-Type: text/plain;
        format=flowed;
        charset=quot;Windows-1252quot;;
        reply-type=original
Content-Transfer-Encoding: 7bit

For bad boys only

http://ingenuitycopy.com/?said=r17
HEADER*windows-1252   0.9285 1
HEADER*mx2.xxxx.hu    0.9974 1
HEADER*195.xx.xx.xx   0.9972 1

level90: 0.9999 in 30 [ms]



ingenuitycopy.com.multi.surbl.org has address 127.0.0.86
ingenuitycopy.com.multi.uribl.com has address 127.0.0.2

SURBL0*ingenuitycopy.com 0.9999 1
Received: from mx2.xxxx.hu (mx2.xxxx.hu[195.xx.xx.xx])
    by xx.xxx.hu (Postfix) with SMTP id C3F7917018
    for <sj@xxxx.hu>; Tue, 15 Jul 2008 10:57:23 +0200
Received: from av-engine (localhost [127.0.0.1])
    by mx2.xxxx.hu (Postfix) with SMTP id C1C3642A0C6
    for <sj@xxxx.hu>; Tue, 15 Jul 2008 10:57:23 +0200
Received: from host1-111-dynamic.17-87-
 r.retail.telecomitalia.it (host1-111-dynamic.17-87-
 r.retail.telecomitalia.it [87.17.111.1])
    by mx2.xxxx.hu (Postfix) with SMTP id BC2D1429EA9
    for <sj@xxxx.hu>; Tue, 15 Jul 2008 10:57:22 +0200
Message-ID: <487C6670.6010903@acts.hu>
Date: Tue, 15 Jul 2008 10:57:20 +0100
From: quot;Annequot; <m@acts.hu>
To: quot;Vickiequot; <sj@xxxx.hu>
Subject: Style casino

Win, win with us - our casino http://casdream.net/
HEADER*mx2.xxxx.hu    0.9973   1
HEADER*195.xx.xx.xx   0.9971   1
FROM*acts.hu          0.8960   1
Subject*casino        0.9955   1
with+our              0.9181   1

level65: 1.0000 in 41 [ms]
Received: from 65.204.40.211 (unknown [65.204.40.211])
        by xx.xxx.hu (Postfix) with SMTP id83F6C17018
Message-ID: <000601c8e6a4$053bc22c$c1d44282@bjoawxy>
From: quot;kalle sandgorgquot; <art@bonne-route.com>
To: <xxx@xxxx.hu>
Subject: We caught you naked in the shower xxxx
MIME-Version: 1.0
Content-Type: text/plain;
        charset=quot;iso-8859-1quot;
Content-Transfer-Encoding: 7bit
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 6.00.2900.3138
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198

         http://autodromomouras.com/view.exe
WATCH:
Subject*caught   0.9680   1
Subject*you      0.9843   1
Subject*shower   0.9747   1
Subject*naked    0.9791   1

level72: 0.9999 in 27 [ms]
Kreatív írás
Received: from abqr197.neoplus.adsl.tpnet.pl
     (abqr197.neoplus.adsl.tpnet.pl [83.8.85.197])
Received: from 141.156.31.140 (HELO merlin.cssiinc.com)
     by xx.xxxx.hu with ESMTP ({nChar[8-12]}nChar[4-6]})
From: quot;Louis Hernandezquot; <Louis@cssiinc.com>
To: quot;Melvin Kingquot; <xx@xxxx.hu>
Subject: Get a rod of colossal measurements!

------=_NextPart_6255_18D9_01C8ECCA.BFE87290
Content-Type: text/plain; charset=quot;windows-1250quot;
Content-Transfer-Encoding: quoted-printable

I thought I could not do anything with this small
dimension until I tried this remedy! Make it get bigger,
go for it! http://stillgen.com/

once, I didnt want to hit it again.would tell him, You
dont look Jewish. Nothing made him feel happierones.
FROM*louis              0.9314   1
FROM*hernandez          0.9771   1
HEADER*nchar            0.9946   1
windows-1250+meta       0.9051   1
Subject*get             0.9595   1
Subject*rod             0.9040   1
small+dimension         0.9040   1
made+him                0.9926   1
tried+this              0.9047   1
it!+font                0.9952   1
didnt+want              0.9942   1
until+tried             0.9952   1
you+dont                0.9958   1
mshtml+6.00.3790.1830   0.9952   1
6.00.3790.1830+name     0.9952   1

level93: 1.0000 in 33 [ms]
Adobe + „eltört” URL
Received: from (ipbf.tokyo.ocn.ne.jp [118.6.117.90])
From: quot;boote kirbyquot; <1kazman@jaring.my>
To: <sj@xxxx.hu>
Subject: to sj

Get the great discounts on popular software today !

Windows XP Pro With SP2 - $59.95
Adobe Acrobat Pro 8 - $69.95
Office 2003 Pro - $59.95
Adobe Photoshop CS2 - $79.95

Microsoft Office 2004 for MAC $79.95
Adobe Acrobat 7 Professional for MAC $59.95
Adobe Creative Suite 2 Premium for MAC $229.95

 - Visit our site:   www.rahwosoft[DOT]com
(copy this link and then replace quot;[DOT]quot; to quot;.quot;)
great+discounts 0.9952 1
adobe+acrobat 0.9952 1
adobe+creative 0.9954 1
suite+premium 0.9952 1
creative+suite 0.9952 1
microsoft+office 0.9570 1
$59.95+adobe 0.9952 1
$79.95+adobe 0.9957 1
NO_SUBJECT* 0.9999 1
adobe+photoshop 0.9958 1
acrobat+professional 0.9932 1
photoshop+cs2 0.9952 1
office+pro 0.9948 1
premium+for 0.9952 1
...
our+site 0.9027 1
com+copy 0.9631 1
copy+this 0.9680 1
replace+dot 0.9631 1

level66: 1.0000 in 41 [ms]
Image spam
Received: from x.x.x.x.pldt.net (unknown [210.213.113.173])
From: =?koi8-r?B?8i7nLiDz1NLVxdc=?= <whitney@apr.com>
To: =?koi8-r?B?4c3exc7Dxdc=?= <xxx@xxxx.hu>
Subject: =?koi8-r?B?NyDU28suIOFxMXU08vPQ0sxc7JxSDP1CDv0sLJ?=

<META http-equiv=Content-Type content=quot;text/html;
charset=koi8-rquot;>

<DIV align=center><FONT face=Arial color=#000000><img
=src=quot;cid:000401c8$4b27d4bb@mohjuegquot; align=middle>

=C6=D2=C1=CE=DB=C9=DA=CE=CF=C7=CF=20=D0=C1=CB=C5=D4=C1&nbsp;
<STRONG><FONT color=#fa6105>&laquo;ORBY&raquo;:</FONT>
C9=DE=C5=CE=CE=CF=C5 =D0=D2=C5=C4=CC=CF=D6=C5=CE=C9=C5 =

Content-Type: image/jpeg; name=quot;orbi0.jpgquot;
Content-Transfer-Encoding: base64
Subject*koi8-r                     0.9962   1
charset+koi8-r                     0.9918   1
koi8-r+content-transfer-encoding   0.9915   1
koi8-r+meta                        0.9993   1
div+bgcolor                        0.9460   1
bgcolor+div                        0.8803   1
raquo+font                         0.0743   1
jjjjj+nbsp                         0.9680   1
nbsp+jjj                           0.9040   1
color+jjj                          0.9040   1
jjj+jjjjj                          0.9721   1
generator+style                    0.8783   1
raquo+nbsp                         0.9718   1
color+img                          0.9761   1
strong+nbsp                        0.9467   1
src+cid                            0.8929   1
image+jpeg                         0.8960   1
jpeg+content-transfer-encoding     0.9121   1
content-transfer-encoding+base64   0.8750   1
IMAGE*                             0.9999   1
EMBED*                             0.9999   1

level70: 1.0000 in 51 [ms]
Received: from mary (24-183-185-151.charter.com
     [24.183.185.151])
Received: from [24.183.185.151] by f.mx.mail.yahoo.com;
From: quot;Carey Brunsonquot;@xx.xxxx.hu
To: <xx@xxxx.hu>
Subject: Great variety of little helpers for your health.

<szöveges rész az elején>

------=_NextPart_001_000F_01C8E6D2.031FDE80
Content-Type: text/html; charset=quot;iso-8859-2quot;
Content-Transfer-Encoding: quoted-printable

<p><a href=quot;http://suffixwit.com/quot; target=quot;_blankquot;>
<strong><font size=3Dquot;+1quot;>CLICK HERE URL!!!
</font></strong></a> <br />

------=_NextPart_000_000E_01C8E6D2.031FDE80
Content-Type: image/gif; name=quot;10.gifquot;
Content-Transfer-Encoding: base64
HEADER*f.mx.mail.yahoo.com   0.9631   1
FROM*carey                   0.9870   1
Subject*great                0.9964   1
Subject*little               0.9955   1
Subject*helpers              0.9631   1
Subject*your                 0.8795   1
Subject*health.              0.9834   1
Subject*for+Subject*your     0.8975   1
center+bordercolor           0.9954   1
mshtml+6.00.2900.2670        0.9957   1
body+body                    0.9961   1
body+table                   0.9436   1
here+font                    0.9149   1
border+href                  0.8995   1
6.00.2900.2670+name          0.9957   1
content-type+meta            0.8783   1
head+title                   0.9251   1
div+align                    0.8783   1
size+click                   0.9299   1
IMAGE*                       0.9999   1

level97: 1.0000 in 33 [ms]
„A töltelékszavak lerontják a
felismerés hatékonyságát ...”
            “...Spamre nem jellem-
            ző szavakat tesznek
            bele, így fog átjutni
            a spamszűrőn. Ha taní-
            tod, akkor mérgezi az
            adatbázist, sokkal
            rosszabbul fog működ-
            ni.”
Received:from dsldevice.lan (x.x.x.x.orange.es[85.60.30.163])
Subject: Give freedom to the desires

<szöveges rész a lenti szósalátával>

Content-Type: text/html; charset=quot;Windows-1252quot;
Content-Transfer-Encoding: quoted-printable

<META http-equiv=Content-Type content=quot;text/html;
charset=Windows-1252quot;>
<META content=3Dquot;MSHTML 6.00.2720.1081quot; name=GENERATOR>
<STYLE></STYLE></HEAD>
<BODY bgColor=#ffffff><DIV align=center><FONT face=Comic Sans
MS size=3>A better way to give up smoking.</FONT></DIV><DIV
align=center><FONT face=Comic Sans size=3>Your new source of
great health.</FONT></DIV>

<DIV><FONT face=Comic Sans MS size=3></FONT>&nbsp;&nbsp;
</DIV><DIV align=center><FONT face=Comic Sans size=2><A
href=quot;http://q.bay.livefilestore.com/y1py...9A/gqoet.htmquot;>
Here!</A></FONT></DIV><BR><BR><BR><BR><BR>

exporatory euroaquilo equilivent esthesises entogenous
eurobridge ethermeter fBTERMINFO enterozoan februarius
HEADER*dsldevice.lan                     0.9944   1
FROM*charles                             0.9845   1
Subject*give                             0.9953   1
Subject*freedom                          0.8816   1
Subject*desires                          0.9902   1
windows-1252+meta                        0.9981   1
charset+windows-1252                     0.9799   1
windows-1252+content-transfer-encoding   0.9716   1
generator+style                          0.8786   1
here!+font                               0.9958   1
size+better                              0.9952   1
size+your                                0.8784   1
div+align                                0.8776   1
quoted-printable+the                     0.9769   1
bgcolor+div                              0.8806   1
you+dreamt                               0.9893   1
which+one                                0.9963   1
health.+font                             0.9808   1
URL*livefilestore.com                    0.9771   1

level73: 1.0000 in 27 [ms]
Received: from x-x-x-x.aaa.com.br (unknown[200.138.161.196])
From: quot;Mckenzie Lavinderquot; <wwinflation@dialusformurder.com>
To: quot;xxxquot; <xxx@xxxx.hu>
Subject: Actually you do not try them?

Content-Type: text/plain; charset=quot;iso-8859-15quot;
<szöveges rész összefüggéstelen szavakból álló mondatokkal>

<A href=quot;http://qtk8q.bay.livefilestore.com/yw/imjl.htmquot;>
<IMG alt=quot;As sunkenquot; hspace=0
src=quot;http://cufbtg.bay.livefilestore.com/y1pBw...g/jskd.jpgquot;
align=baseline border=0></A></DIV>

<DIV align=left><FONT face=Bookman Old Style size=1>But
sold? Is by consequence indistinguishable. Is therefore It
viewer. For counteract. At to broaden. on by supplementary
seriously sentiment. avoid at twist. my what, dangerous the
pipes.</FONT></DIV>
<DIV align=left><FONT face=Bookman Old Style size=1>Which
disappear. He is ignorant, repose. you timetable faculty.
That easy it welch appellant. by go prescribed broken
misguided. mistress the mindless. prophet social a hive. To
be violate master.</FONT></DIV>
Subject*actually        0.9863   1
Subject*you             0.9843   2
Subject*not             0.9956   2
Subject*try             0.9952   1
Subject*them            0.9924   1
charset+iso-8859-15     0.9808   1
align+baseline          0.9808   1
border+div              0.9416   1
URL*livefilestore.com   0.9771   1
hspace=0+src            0.9480   1
div+align               0.8776   1
bgcolor+div             0.8810   1
generator+style         0.8786   1
baseline+border         0.9838   1
size+but                0.9952   1
size+which              0.9528   1

level78: 1.0000 in 58 [ms]
Magyar nyelvű spam
Received:from 3lyw4 (x.x.x.x.vodafone.hu[89.223.208.212])
From: =?ISO-8859-1?Q?Anikó?= <balogh.aniko@vipmail.hu>
Subject: Nyerj LCD TV-t!
To: sj@xxxx.hu
Content-Type: text/plain; charset=quot;ISO-8859-1quot;
Reply-To: balogh.aniko@vipmail.hu

Hello!

Szívesen néznéd Te is a filmeket egy nagyképernyos LCD
TV-n, de nincs rá pénzed? Akkor nyerj egyet! Csak egy
sms-t kell elküldened, és máris jó esélyed van rá, hogy
jelképes áron vásárolhasd meg álmaid nagyképernyos
plazmatv-jét! Nézd meg ezt az oldalt, megéri!

http://www.matutinyersz.eu/
FROM*vipmail.hu        0.9877   1
FROM*anikó             0.9631   1
HEADER*3lyw4           0.9888   1
egy+sms-t              0.9631   1
van+hogy               0.0202   1   phrase: 0.8139

RBL checking: 212.208.223.89.zen.spamhaus.org
surbl check for matutinyersz.eu (0) took 0 ms

FROM*vipmail.hu        0.9877   2
FROM*anikó             0.9631   2
HEADER*3lyw4           0.9888   2
egy+sms-t              0.9631   1
filmeket               0.9718   1
van+hogy               0.0202   1
van                    0.1005   1
sms-t                  0.9631   1
hogy                   0.1005   1   mix: 0.8703
megéri!                0.9631   1   caught by rbl
RBL0*89.223.208.212    0.9999   1

level76: 0.9797 in 28 [ms]
Received: from mx2.xxxx.hu (mx2.xxxx.hu [195.xx.xx.xx])
Received: from 192.168.1.1(x.x.x.x.pool.tvnet.hu[85.238.82.84])
From: quot;Molnár Zsoltquot; <molnarzsolt2007@gmail.com>
To: <xx@xxxx.hu>
Subject: Címlista

Tisztelt Hölgyem/ Uram!

Megrendelhető nálam az alábbi email címlista:

- 200.000 magyarországi vállalkozás email címe, tetszés
szerinti csoportosításban (összesítve, illetve számos kategória
külön is).
- 400.000 magyarországi magán email cím.

Továbbá el tudom vállalni az email kampány lebonyolítását
(kiküldés), valamint tudok ajánlani email címeket gyűjtő,
valamint hírlevél kiküldő programot.

Valamennyi címlistát idén, 2008. januárjában allítottam össze,
a hibaszázalék mindössze 5-10 százalék, vagyis aktuálisabb,
mint szinte valamennyi más hasonló adatbázis.

Üdvözlettel, Molnár Zsolt
Subject*címlista            0.9564   1
uram!+megrendelhető         0.9564   1
megrendelhető+nálam         0.9564   1
részletes+tájékoztatót      0.9564   1
email+címlista              0.9564   1
valamennyi+címlistát        0.9564   1
tudok+ajánlani              0.9040   1
küldök+illetve              0.9564   1
email+címem                 0.9564   1
vállalkozás+email           0.9564   1
magyarországi+magán         0.9564   1
bármilyen+felmerülő         0.9564   1
alábbi+email                0.9564   1
tájékoztatót+küldök         0.9564   1
illetve+válaszolok          0.9564   1
hasonló+adatbázis.          0.9564   1
válaszolok+bármilyen        0.9564   1
számos+kategória            0.9564   1
címlista+200.000            0.9564   1
magyarországi+vállalkozás   0.9564   1
Üdvözlettel+molnár          0.9564   1
molnár+zsolt                0.9564   1
Received: from mobilier1 (dslXXXX.pool.t-online.hu [78.92.82.147])
From: Kontra =?ISO-8859-1?Q?György?= <flexen2@freemail.hu>
To: <xx@xxxx.hu>
Subject: =?ISO-8859-1?Q?Bemutatkozás?=
X-DCC--Metrics: mail02a.mail.t-online.hu 0; Body=1 Fuz1=1 Fuz2=1

<html><head><title>Tisztelt Hölgyem</title></head><body>

<p align=quot;leftquot;>Tisztelt Hölgyem/Uram! <br>Kérem engedje meg hogy,
bemutatkozzunk pár másodperc alatt. <br> Tekintse meg
szórólapunkat, és ha felkeltettük érdeklõdését tekintse meg web
oldalunkat és keressen fel személyesen vagy telefonon. </p>
<a href=quot;http://www.mobilier.huquot;>Tekintse meg aktuális akciónkat!</
a></p><a href=quot;http://www.mobilier.huquot;><img border=quot;0quot; src=
quot;http://www.freeweb.hu/mobilier115/szoro1.jpgquot; width=quot;439quot;
height=quot;621quot;></a><p align=quot;leftquot;>Köszönjük a türelmét!<br>
Üdvözlettel: Kontra György<br>

Az Ön e-mail címe valamely nyilvános, mindenki által elérhetõ
adatbázisból származik. Ez az e-mail nem minősül spamnek, hanem a
2001. évi CVIII. Törvény 14. §-ban elõírt &quot;hozzájárulás&quot;
kérés az informáláshoz. Amennyiben a továbbiakban nem kíván ilyen
üzenetet kapni, kérjük, jelezze ezt egy válasz e-mailben. Ha
levelünkkel zavartuk, elnézést kérünk.<br>
HEADER*78.92.82.147                                         0.9631 1
HEADER*mobilier1                                            0.9631 1
FROM*Kontra =?ISO-8859-1?Q?Gy=F6rgy?= <flexen2@freemail.hu> 0.9631 1
Subject*bemutatkozás                                        0.9631 1
microsoft+frontpage                                         0.9953 1
frontpage.editor.document+meta                              0.9631 1
content+frontpage.editor.document                           0.9952 1
content-language+content                                    0.9499 1
title+tisztelt                                              0.9631 1
keressen+fel                                                0.9631 1
engedje+meg                                                 0.9822 1
hogy+bemutatkozzunk                                         0.9631 1
oldalunkat+href                                             0.9631 1
windows-1250+title                                          0.9631 1
URL*mobilier.hu                                             0.9631 1
URL*freeweb.hu                                              0.9631 1
kérjük+jelezze                                              0.9040 1
alatt.+tekintse                                             0.9631 1
jelezze+ezt                                                 0.9631 1
web+oldalunkat                                              0.9631 1
e-mail+nem                                                  0.9631 1
spamnek+hanem                                               0.9631 1
hanem+2001.                                                 0.9845 1
2001.+évi                                                   0.9845 1
évi+cviii.                                                  0.9845 1
cviii.+törvény                                              0.9747 1
törvény+14.                                                 0.9747 1
Bayes mérgezés
   Date: Tue, 15 Jul 2008 10:57:20 +0100
   From: quot;Annequot; <m@teszt.hu>
   To: quot;Vickiequot; <sj@xxxx.hu>
   X-Abcde: ajaja ahah aua akakaka akaka
   Subject: Re: attack on spam filters

   I agree with you!<br>

   <font color=”white”>ajaj ajaju azaha
   azazazz akak</font>


   <!-- jaja ajajaj ajah uzauaz u azuua
   zuazau ahaha -->
Hogyan lehet legyőzni a
statisztikai spamszűrőket?
Ha nem használod . . .

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Statisztikai Spamszurok 2008

  • 1. Statisztikai spamszűrők Hatékony védelem a spam ellen Sütő János (sj@acts.hu)
  • 2. Graham - Plan for spam
  • 5. Döntési mátrix felépítése enhanced+libido 0,9999 Subject*impress 0,9934 triples 0,9311 absolutely 0,8933
  • 6. Statisztikai összegzés HAM ??? SPAM 0% 91% 100%
  • 11. Fehérlista 0. SQL táblában tárolt minták 1. Név, email, domain, IP-cím, FQDN 2. „From:” sor alapján
  • 12. Csapda email cím + aknamező = intelligens feketelista
  • 13. „Nehéz pontosan meghatározni a határértéket . . .” “...Ha túl magas, akkor kevés spamet ismer fel, ha túl alacsony, akkor sok jó levelet is elve- szítünk.”
  • 15. A szakértő megmondja „Egy embernél jól működhet, de 10000- nél már nem” „... később komoly csalódás éri a té- ves biztonságérzetű felhasználót” „A spammerek legú- jabb trükkjeit nem ismeri fel”
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  • 39. FROM*vipmail.hu 0.9877 1 FROM*anikó 0.9631 1 HEADER*3lyw4 0.9888 1 egy+sms-t 0.9631 1 van+hogy 0.0202 1 phrase: 0.8139 RBL checking: 212.208.223.89.zen.spamhaus.org surbl check for matutinyersz.eu (0) took 0 ms FROM*vipmail.hu 0.9877 2 FROM*anikó 0.9631 2 HEADER*3lyw4 0.9888 2 egy+sms-t 0.9631 1 filmeket 0.9718 1 van+hogy 0.0202 1 van 0.1005 1 sms-t 0.9631 1 hogy 0.1005 1 mix: 0.8703 megéri! 0.9631 1 caught by rbl RBL0*89.223.208.212 0.9999 1 level76: 0.9797 in 28 [ms]
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  • 41. Subject*címlista 0.9564 1 uram!+megrendelhető 0.9564 1 megrendelhető+nálam 0.9564 1 részletes+tájékoztatót 0.9564 1 email+címlista 0.9564 1 valamennyi+címlistát 0.9564 1 tudok+ajánlani 0.9040 1 küldök+illetve 0.9564 1 email+címem 0.9564 1 vállalkozás+email 0.9564 1 magyarországi+magán 0.9564 1 bármilyen+felmerülő 0.9564 1 alábbi+email 0.9564 1 tájékoztatót+küldök 0.9564 1 illetve+válaszolok 0.9564 1 hasonló+adatbázis. 0.9564 1 válaszolok+bármilyen 0.9564 1 számos+kategória 0.9564 1 címlista+200.000 0.9564 1 magyarországi+vállalkozás 0.9564 1 Üdvözlettel+molnár 0.9564 1 molnár+zsolt 0.9564 1
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  • 43. HEADER*78.92.82.147 0.9631 1 HEADER*mobilier1 0.9631 1 FROM*Kontra =?ISO-8859-1?Q?Gy=F6rgy?= <flexen2@freemail.hu> 0.9631 1 Subject*bemutatkozás 0.9631 1 microsoft+frontpage 0.9953 1 frontpage.editor.document+meta 0.9631 1 content+frontpage.editor.document 0.9952 1 content-language+content 0.9499 1 title+tisztelt 0.9631 1 keressen+fel 0.9631 1 engedje+meg 0.9822 1 hogy+bemutatkozzunk 0.9631 1 oldalunkat+href 0.9631 1 windows-1250+title 0.9631 1 URL*mobilier.hu 0.9631 1 URL*freeweb.hu 0.9631 1 kérjük+jelezze 0.9040 1 alatt.+tekintse 0.9631 1 jelezze+ezt 0.9631 1 web+oldalunkat 0.9631 1 e-mail+nem 0.9631 1 spamnek+hanem 0.9631 1 hanem+2001. 0.9845 1 2001.+évi 0.9845 1 évi+cviii. 0.9845 1 cviii.+törvény 0.9747 1 törvény+14. 0.9747 1
  • 44. Bayes mérgezés Date: Tue, 15 Jul 2008 10:57:20 +0100 From: quot;Annequot; <m@teszt.hu> To: quot;Vickiequot; <sj@xxxx.hu> X-Abcde: ajaja ahah aua akakaka akaka Subject: Re: attack on spam filters I agree with you!<br> <font color=”white”>ajaj ajaju azaha azazazz akak</font> <!-- jaja ajajaj ajah uzauaz u azuua zuazau ahaha -->
  • 45. Hogyan lehet legyőzni a statisztikai spamszűrőket?