[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Asrg] 2a. Analysis - Spam filled with words


Yes !

These are invisible words (text in white color over white background). Some filters evaluate the ratio "usable text/message sige" on html messages. Adding this kind of thing allows to maintain this ratio high enough to pass the filter.





Yakov Shafranovich wrote:
I started getting weird spam samples in the last few days. The spam message consists of words, one after the other, with an image in the middle. Looks like another attempt to defeat the filters, here is a sample:

--------------------------
<html>
<body><font color="#ffffff">merrymake <font color="#ffffff">evermore <font color="#ffffff">hue <font color="#ffffff">creamers <font color="#ffffff">practitioner <font color="#ffffff">accounting <font color="#ffffff">crossable <font color="#ffffff">poisoner <font color="#ffffff">polygynous <font color="#ffffff">acclimatized <font color="#ffffff">immerses <font color="#ffffff">testimony <font color="#ffffff">boldest <font color="#ffffff">crews <font color="#ffffff">meetings <font color="#ffffff">milking <font color="#ffffff">evenly <font color="#ffffff">brainstorm <font color="#ffffff">migrated <font color="#ffffff">sap <font color="#ffffff">scuffled <font color="#ffffff">messieurs <font color="#ffffff">excavates <font color="#ffffff">testaments <font color="#ffffff">expansive <font color="#ffffff">scratchers <font color="#ffffff">hot <font color="#ffffff">borne <font color="#ffffff">corsage <font color="#ffffff">admirable <font color="#ffffff">$RANDO
MIZE <font color="#ffffff">meander <font color="#ffffff">teen <font color="#ffffff">exacerbation <font color="#ffffff">count <font color="#ffffff">households <font color="#ffffff">accompany <font color="#ffffff">bessie <font color="#ffffff">accommodated <font color="#ffffff">midday <font color="#ffffff">illuminate <font color="#ffffff">savaging <font color="#ffffff">accessibly <font color="#ffffff">millinery <font color="#ffffff">bookstore <font color="#ffffff">aristotelean <font color="#ffffff">poised <font color="#ffffff">crossings <font color="#ffffff">polarity <font color="#ffffff">thankfulness <font color="#ffffff">poll <font color="#ffffff">porcine <font color="#ffffff">tea <font color="#ffffff">blunts <font color="#ffffff">savers <font color="#ffffff">baghdad <font color="#ffffff">ignore <font color="#ffffff">bonder <font color="#ffffff">testifying <font color="#ffffff">activism <font color="#ffffff">exalt <font color="#ffffff">$RANDOM
IZE <font color="#ffffff">boxers <font color="#ffffff">microscope <font color="#ffffff">australis <font color="#ffffff">hundreds <font color="#ffffff">maximizes <font color="#ffffff">coruscate <font color="#ffffff">horntail <font color="#ffffff">middles <font color="#ffffff">alsop <font color="#ffffff">midwives <font color="#ffffff">accorded <font color="#ffffff">measuring <font color="#ffffff">illy plenitude possessed powerfulness bobolinks mendelevium borer adjourning adept<p>

<a href="http://srd.yahoo.com/drst/sans/*http://big7x24info.com/sh/";>
<img border="0"
src="http://srd.yahoo.com/drst/midrange/*http://www.hitandget.com/r.gif"; >
</a>
</p><font color="#ffffff">evangelic <font color="#ffffff">technocratic <font color="#ffffff">adsorbate <font color="#ffffff">adopted <font color="#ffffff">bran <font color="#ffffff">sawbelly <font color="#ffffff">milkmaids <font color="#ffffff">horrible <font color="#ffffff">how <font color="#ffffff">crossers <font color="#ffffff">theme <font color="#ffffff">covetous <font color="#ffffff">excitedly <font color="#ffffff">brave <font color="#ffffff">sarsparilla <font color="#ffffff">admitters <font color="#ffffff">huzzah <font color="#ffffff">courage <font color="#ffffff">accompany <font color="#ffffff">alpheratz <font color="#ffffff">crock <font color="#ffffff">bouncing <font color="#ffffff">accrual <font color="#ffffff">thatch <font color="#ffffff">cramming <font color="#ffffff">accumulating <font color="#ffffff">huskiness <font color="#ffffff">scared <font color="#ffffff">existentialist <font color="#ffffff">acquaintances <font color="#ffffff">$RANDOM
IZE <font color="#ffffff">merest <font color="#ffffff">booth <font color="#ffffff">anaheim <font color="#ffffff">adapt <font color="#ffffff">crony <font color="#ffffff">extant <font color="#ffffff">scabrous <font color="#ffffff">beloit <font color="#ffffff">alan <font color="#ffffff">armonk <font color="#ffffff">administration <font color="#ffffff">credulous <font color="#ffffff">sanitation <font color="#ffffff">cowls <font color="#ffffff">advisees <font color="#ffffff">ideology <font color="#ffffff">evaluative <font color="#ffffff">ploughman <font color="#ffffff">ak <font color="#ffffff">bonnets <font color="#ffffff">acrobats <font color="#ffffff">teflon <font color="#ffffff">hypochlorite <font color="#ffffff">policemen <font color="#ffffff">alfonso <font color="#ffffff">bombay <font color="#ffffff">poke <font color="#ffffff">sausage <font color="#ffffff">activates <font color="#ffffff">horrified <font color="#ffffff">$RANDOMI
ZE <font color="#ffffff">exploited <font color="#ffffff">bergson <font color="#ffffff">bookplate <font color="#ffffff">idol <font color="#ffffff">schedule <font color="#ffffff">thanklessly <font color="#ffffff">pledge <font color="#ffffff">imaginings <font color="#ffffff">tenderness <font color="#ffffff">alberich <font color="#ffffff">crested <font color="#ffffff">courses <font color="#ffffff">RANDOMIZE that postwar adjured crackling ethyl scholastically metabolism branching</body>

</html>
--------------------------


_______________________________________________
Asrg mailing list
Asrg@ietf.org
https://www1.ietf.org/mailman/listinfo/asrg



--
 ---------------------------------------------------------------
 Jose Marcio MARTINS DA CRUZ           Tel. :(33) 01.40.51.93.41
 Ecole des Mines de Paris              http://j-chkmail.ensmp.fr
 60, bd Saint Michel                http://www.ensmp.fr/~martins
 75272 - PARIS CEDEX 06      mailto:Jose-Marcio.Martins@ensmp.fr


_______________________________________________
Asrg mailing list
Asrg@ietf.org
https://www1.ietf.org/mailman/listinfo/asrg