On Fri, 21 Aug 2020, Riccardo Alfieri wrote:
On 21/08/20 11:52, Matus UHLAR - fantomas wrote:
I have noticed those some time ago.
I wonder what's the point of sending such mail.
Perhaps trying to fool the bayesians? I remember some spam emails that
cyclically appear (mostly dating spam) that have a lot of hidden text at the
end of the body with just entire sentences from classic books or random
common words chained.
Just an hypothesis :)
A fairly good one if the "invisible" text is that block at the end. That
would be hiding the non-sequitir text from the user to avoid arousing
suspicion.
The other approach (as reported here) is to break up the body text like
so:
spa<garbage>mmy wo<garbage>rds
Scanning for "spammy words" in the raw HTML is defeated, but rendering the
text as the user would see it before doing the scanning yields:
spammy text
...which hits.
--
John Hardin KA7OHZ http://www.impsec.org/~jhardin/
jhar...@impsec.org pgpk -a jhar...@impsec.org
key: 0xB8732E79 -- 2D8C 34F4 6411 F507 136C AF76 D822 E6E6 B873 2E79
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