On Wed, 27 Sep 2006, Peter Smith wrote:

> The messages are simply a random stream of words, with punctuation
> scattered in them. No HTML, no URLs being advertised, no excessive
> capitalisation, just meaningless text.

Technically, then, it's not spam. Spam requires a commercial message
of some sort. :)

> As such, SA is finding very little to complain about, and is even
> lowering the scoring because the bayes filtering deems it to be
> good.

I'm torn about whether or not to train on such messages. I do hand
training so I keep pretty tight control over what gets trained.

I would agree that it's an attempt to poison your bayes database,
assuming that you have autolearn turned on, either by skewing the
scores towards ham or by bloating the database.

> Any thoughts on what I can do about these messages? Even with
> bayes turned off, they would still fail to score more than say 2
> or 3. Each message contains a different paragraph of random text,
> so it's not possible to pick out keywords; and the messages are
> coming from dialup machines, so blocking IP isn't going to be very
> effective.

Look for punctuation? A good deal of the random bayes poison at one
time was totally without punctuation.

--
 John Hardin KA7OHZ    ICQ#15735746    http://www.impsec.org/~jhardin/
 [EMAIL PROTECTED]    FALaholic #11174    pgpk -a [EMAIL PROTECTED]
 key: 0xB8732E79 - 2D8C 34F4 6411 F507 136C  AF76 D822 E6E6 B873 2E79
-----------------------------------------------------------------------
  ...every time I sit down in front of a Windows machine I feel as
  if the computer is just a place for the manufacturers to put their
  advertising.                                -- fwadling on Y! SCOX
----------------------------------------------------------------------

Reply via email to