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Posted to users@spamassassin.apache.org by Dan Schaefer <da...@performanceadmin.com> on 2009/08/19 14:26:31 UTC
Image Spam
Why haven't spammers think about this approach before? I can image it is
very difficult for Fuzzy OCR to tag this with a high score.
http://pastebin.com/m247b74c8
--
Dan Schaefer
Web Developer/Systems Analyst
Performance Administration Corp.
Re: Image Spam
Posted by Dan Schaefer <da...@performanceadmin.com>.
> On ons 19 aug 2009 14:26:31 CEST, Dan Schaefer wrote
>
>> Why haven't spammers think about this approach before? I can image it
>> is very difficult for Fuzzy OCR to tag this with a high score.
>
> you belive fuzzyocr is buggy ?
>
>> http://pastebin.com/m247b74c8
>
> already detected as spam, what more do you want from spamassassin ?
>
>
I'm not complaining!! First of all, I don't have FuzzyOCR installed and
I'm not using it. Therefore, I couldn't even determine if this email was
marked as spam by FuzzyOCR. And second of all, I didn't mention anything
about spamassassin. I'm just speculating on difficulty of image scanning.
--
Dan Schaefer
Web Developer/Systems Analyst
Performance Administration Corp.
Re: Image Spam
Posted by Benny Pedersen <me...@junc.org>.
On ons 19 aug 2009 14:26:31 CEST, Dan Schaefer wrote
> Why haven't spammers think about this approach before? I can image
> it is very difficult for Fuzzy OCR to tag this with a high score.
you belive fuzzyocr is buggy ?
> http://pastebin.com/m247b74c8
already detected as spam, what more do you want from spamassassin ?
--
xpoint
Re: Image Spam
Posted by Toni Mueller <su...@oeko.net>.
On Wed, 19.08.2009 at 11:40:24 -0400, Terry Carmen <te...@cnysupport.com> wrote:
> Nothing says "Buy my stuff" better than an email done in fuzzy distorted
> letters. 8-)
Ok, got it. ;}
Although I'm still amazed about how spam does bring in business in the
first place.
Sorry for being a bit thick.
Kind regards,
--Toni++
Re: Image Spam
Posted by Terry Carmen <te...@cnysupport.com>.
Toni Mueller wrote:
> Hi,
>
> On Wed, 19.08.2009 at 14:38:12 +0100, RW <rw...@googlemail.com> wrote:
>
>> It's like a traditional anonymous letter, with letters cut from
>> different sources, with different colours, fonts and backgrounds.
>>
>
> thank you.
>
>
>> To be fair it is in Cyrillic, so FuzzyOCR wouldn't have caught it
>> without an appropriate wordlist anyway,
>>
>
> Ok. I usually delete such emails w/o ever looking at them, anyway.
>
>
>> but judging from the last image spam which got through with just a
>> bit of a wave and slightly fuzzy letters,
>>
>
> This sounds like it would be easy to generate this kind of spam, and
> bypass filters.
>
>
>> I don't think it's going to be much use in future.
>>
>
> Therefore, I don't understand why spammers don't use it more.
>
Apparently, it isn't especially effective.
Nothing says "Buy my stuff" better than an email done in fuzzy distorted
letters. 8-)
Even if it gets past the filters, if it doesn't bring in business, it's
not useful for spam.
Terry
Re: Image Spam
Posted by Toni Mueller <su...@oeko.net>.
Hi,
On Wed, 19.08.2009 at 14:38:12 +0100, RW <rw...@googlemail.com> wrote:
> It's like a traditional anonymous letter, with letters cut from
> different sources, with different colours, fonts and backgrounds.
thank you.
> To be fair it is in Cyrillic, so FuzzyOCR wouldn't have caught it
> without an appropriate wordlist anyway,
Ok. I usually delete such emails w/o ever looking at them, anyway.
> but judging from the last image spam which got through with just a
> bit of a wave and slightly fuzzy letters,
This sounds like it would be easy to generate this kind of spam, and
bypass filters.
> I don't think it's going to be much use in future.
Therefore, I don't understand why spammers don't use it more.
When I was at an anti-spam congress two years ago, a guy from Eleven
toutet their ability to catch sliced and diced image spam, and produced
a statistics which was intended to prove that the rate of this kind of
spam was high, and still increasing.
I have fundamental objections against services of this kind, however,
but could use second opinions.
TIA!
Kind regards,
--Toni++
Re: Image Spam
Posted by RW <rw...@googlemail.com>.
On Wed, 19 Aug 2009 14:45:08 +0200
Toni Mueller <su...@oeko.net> wrote:
>
> On Wed, 19.08.2009 at 08:28:21 -0400, Dan Schaefer
> <da...@performanceadmin.com> wrote:
> > Dan Schaefer wrote:
> >> Why haven't spammers think about this approach before? I can image
> >> it is very difficult for Fuzzy OCR to tag this with a high score.
> >>
> >> http://pastebin.com/m247b74c8
> > Oops. Why haven't spammers *thought about this approach before?
> > Spamassasin did a nice job of catching it though.
>
> W/o looking at the image, what exactly to you mean?
It's like a traditional anonymous letter, with letters cut from
different sources, with different colours, fonts and backgrounds.
To be fair it is in Cyrillic, so FuzzyOCR wouldn't have caught it
without an appropriate wordlist anyway, but judging from the last image
spam which got through with just a bit of a wave and slightly fuzzy
letters, I don't think it's going to be much use in future.
Re: Image Spam
Posted by Toni Mueller <su...@oeko.net>.
On Wed, 19.08.2009 at 08:28:21 -0400, Dan Schaefer <da...@performanceadmin.com> wrote:
> Dan Schaefer wrote:
>> Why haven't spammers think about this approach before? I can image it
>> is very difficult for Fuzzy OCR to tag this with a high score.
>>
>> http://pastebin.com/m247b74c8
> Oops. Why haven't spammers *thought about this approach before?
> Spamassasin did a nice job of catching it though.
W/o looking at the image, what exactly to you mean?
Kind regards,
--Toni++
Re: Image Spam
Posted by Dan Schaefer <da...@performanceadmin.com>.
Dan Schaefer wrote:
> Why haven't spammers think about this approach before? I can image it
> is very difficult for Fuzzy OCR to tag this with a high score.
>
> http://pastebin.com/m247b74c8
>
Oops. Why haven't spammers *thought about this approach before?
Spamassasin did a nice job of catching it though.
--
Dan Schaefer
Web Developer/Systems Analyst
Performance Administration Corp.