JM> OK, I'm curious.  How do you suggest this can be done using MailMan 2.0.9?
JM> as far as I can see, there's no way to filter out attachments.

I use Mailman 2.0.13, so it's possible that it has a
feature that 2.0.9 doesn't - in which case they really ought
to upgrade, given the fact that Mailman is free - however,
here's the easy way:

1. Under "General Options": Set the message size limit way
lower than 150kb - the majority of pots size of posts to
this list are under 10K, a setting of 50K would let almost
all legit emails through but stop a large number of worm
attachments.

2. Under "Privacy Options": use the spam filtering option of
"Hold posts with header value matching a specified regexp"
to hold anything with the following string value:

boundary="CSmtpMsgPart123X456_000.*"

I see that string on all of the Sobig.E, including the ones
that came through the list, as well as on some earlier
versions of Sobig - I ran a search of clean emails stored on
my system, including 605 recent posts from this SATalk list,
and didn't see a single instance of that string, EXCEPT for
some of the infected files that came through.

So I think you'd be pretty successful at stopping the
current virus with that entry.

-Abigail


JM> Bear in mind those messages are < 150Kb in size (the size limit of the
JM> list).

JM> Anyway, I've set up "non-subscribers cannot post", which should help
JM> a little.

JM> --j.


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