funsec mailing list archives
Re: An OCR plug-in for Spamassassin
From: Axel Pettinger <api () worldonline de>
Date: Mon, 17 Apr 2006 12:49:14 +0200
Nick FitzGerald wrote:
I saw a suggestion somewhere it was the Kuvayev gang, but regardless of who it was, but a lot of "penny stock" spam back in January (maybe back into last December?) through into early February (from memory) was of the form: <nonsense text block> <(relatively) unique "message text as image"> <nonsense text block>
The text in my last post was from such a stock spam mail.
The middle bit was an image of text on a coloured background with three randomized components. The background contained light (so as to not terribly degrade readbilility) noise (pixels close to, but not quite the same as the background colour, and occasional black pixels), the images had a random frame (ranging from a band a few pixels wide to multi-line affairs) and the frame was degraded with (heavier) noise (random black pixels across the frame and encroaching slightly into the main image).
I think I've seen such spam mails. The image in my stock spam mail sample contains, apart from the text, many colored pixels. Regards, Axel Pettinger _______________________________________________ Fun and Misc security discussion for OT posts. https://linuxbox.org/cgi-bin/mailman/listinfo/funsec Note: funsec is a public and open mailing list.
Current thread:
- An OCR plug-in for Spamassassin Gary Funck (Apr 16)
- Re: An OCR plug-in for Spamassassin Nick FitzGerald (Apr 16)
- Re: An OCR plug-in for Spamassassin Drsolly (Apr 16)
- Re: An OCR plug-in for Spamassassin Nick FitzGerald (Apr 16)
- Re: An OCR plug-in for Spamassassin der Mouse (Apr 16)
- Re: An OCR plug-in for Spamassassin Dude VanWinkle (Apr 16)
- Re: An OCR plug-in for Spamassassin Valdis . Kletnieks (Apr 16)
- Re: An OCR plug-in for Spamassassin Nick FitzGerald (Apr 16)
- Re: An OCR plug-in for Spamassassin Axel Pettinger (Apr 17)
- Re: An OCR plug-in for Spamassassin Nick FitzGerald (Apr 17)
- Re: An OCR plug-in for Spamassassin Axel Pettinger (Apr 17)
- Re: An OCR plug-in for Spamassassin Drsolly (Apr 16)
- Re: An OCR plug-in for Spamassassin Nick FitzGerald (Apr 16)
- Re: An OCR plug-in for Spamassassin Florian Weimer (Apr 17)
- Re: An OCR plug-in for Spamassassin Nick FitzGerald (Apr 16)
- Re: An OCR plug-in for Spamassassin Nick FitzGerald (Apr 16)
- Re: An OCR plug-in for Spamassassin Dude VanWinkle (Apr 16)
- Re: An OCR plug-in for Spamassassin Drsolly (Apr 17)
- <Possible follow-ups>
- RE: An OCR plug-in for Spamassassin Gary Funck (Apr 16)
- RE: An OCR plug-in for Spamassassin Rob, grandpa of Ryan, Trevor, Devon & Hannah (Apr 16)
- Re: An OCR plug-in for Spamassassin Axel Pettinger (Apr 16)
- RE: An OCR plug-in for Spamassassin Rob, grandpa of Ryan, Trevor, Devon & Hannah (Apr 16)