You just missed a discussion about a custom rule.  If you are not familiar
with custom rules, I suggest some reading and examples:

http://mywebpages.comcast.net/mkettler/sa/SA-rules-howto.txt

http://www.merchantsoverseas.com/wwwroot/gorilla/sa_rules.htm

http://www.exit0.us/

http://www.emtinc.net/spamhammers.htm



Now, ian douglas improved a set I was using:


> -----Original Message-----
> From: ian douglas
> Sent: Wednesday, November 19, 2003 2:19 PM
> To: [EMAIL PROTECTED]
> Subject: RE: [SAtalk] <font color="#FFFFFF">
> 
> 
> > describe MY_RBDY_INVSTXT    MY: Invisible text color
> > rawbody  MY_RBDY_INVSTXT    /<font\s?.*
> > color=("?\#?FFFFF[0-9A-F]"?|"?white"?).*>/i
> > score    MY_RBDY_INVSTXT    2.0
> 
> 
> Just my $0.02, but I'd make it this:
> 
> color=("?\#?F[0-9A-F]F[0-9A-F]F[0-9A-F]"?|"?white"
> 
> 
> .. spammers will use more than just the last byte of the
> color to make something a shade of "white".
> 
> Your rule would catch
> #FFFFFE
> etc
> 
> but not
> 
> #FEFFFF
> 
> or
> 
> #FFFEFF
> 
> ... which will appear just as 'white'.
> 
> -id

You will need to note that the rawbody line needs to be one line without any
line breaks.  So the test portion would look like:

/<font\s?.*color=("?\#?F[0-9A-F]F[0-9A-F]F[0-9A-F]"?|"?white"?).*>/i


--Larry



> -----Original Message-----
> From: Robert Oslin [mailto:[EMAIL PROTECTED] 
> Sent: Wednesday, November 19, 2003 3:25 PM
> To: [EMAIL PROTECTED]
> Subject: RE: [SAtalk] (no subject)
> 
> 
> My first post to this list. Hope I'm doing this right...
> 
> I received a message with invisible fonts, yet the generic
> HTML_FONT_INVISIBLE rule wasn't hit.
> 
> Was it because the body tag didn't specify a background font, 
> therefore the
> text font color had nothing to compare against?
> 
> Copy of the spam below:
> <html>
> <body><font color="#ffffff">exhaled <font 
> color="#ffffff">crowberry <font
> color="#ffffff">potentiometer <font  color="#ffffff">tavern <font
> color="#ffffff">acidities <font color="#ffffff">evangel <font
> color="#ffffff">crossbars <font color="#ffffff">merchants <font
> color="#ffffff">hyperbolic <font color="#ffffff">mildly <font
> color="#ffffff">exhibiting <font color="#ffffff">horde <font
> color="#ffffff">housekeeper <font color="#ffffff">scorers <font
> color="#ffffff">illustration <font color="#ffffff">scattered <font
> color="#ffffff">methodicalness borates creating mate meadows meteoric
> tenants excursion blueprint bong tamely<p>
> <a 
> href="http://srd.yahoo.com/drst/councillors/*http://www.8u7hb.
> com/in/">
> <img border="0"
>  
> src="http://srd.yahoo.com/drst/scrawny/*http://www.addhr4.com/
> picnic.jpg" >
> </a>
>  </p><font color="#ffffff">ponder <font color="#ffffff">evict <font
> color="#ffffff">scrotum <font color="#ffffff">bette <font
> color="#ffffff">acquirable <font color="#ffffff">scorched <font
> color="#ffffff">idling <font color="#ffffff">scimitar <font
> color="#ffffff">bow <font color="#ffffff">brat <font 
> color="#ffffff">terse
> <font color="#ffffff">menu <font color="#ffffff">course hut admissions
> addict brace polopony playwrights excommunicate expecting bocklogged
> secondary</body>
> </html>
> 
> Here is what was hit:
> 
> tests=FVGT_u_HAS_2LETTERFLDR,HTML_60_70,HTML_IMAGE_ONLY_06,HTM
> L_MESSAGE,MIME
> _HTML_ONLY,SMTPD_IN_RCVD
> 
> Robert Oslin
> 
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Behalf Of
> Michael H. Collins
> Sent: Wednesday, November 19, 2003 12:43 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [SAtalk] (no subject)
> 
> 
> No, You leave...
> 
> Is this spam of some new form?
> 
> Reo wrote:
> > leave
> 
> --
> Michael H. Collins  Admiral, Penguinista Navy
> 
> It's us against them. Ride like you stole it!
> 
http://linuxlink.com



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