> The title is actually in the body, not the header. (Possibly
> you need the "rawbody" directive. I'm not sure) For SA, your
> first recipe is enough to score any email for Sobig.E.

Oh, that was just for testing - I'm pretty sure I tried BODY and RAWBODY -
neither were caught, but I'll try again to be sure. I'm sure I've tried
catching specific attachments before and failed.
 
> I think it is a mistake to try to identify viruses with
> Spamassassin, both because it is inefficient and because
> viruses often have very large binary attachments which can
> cause SA to crash with an out of memory error, and let the
> attachment through in any case. For example, Sobig.E. is
> about 115k. It's much better to pre-filter for potential
> viruses & attachments before the email gets to SA, either
> with procmail or another filtering program.

Well followed the tutorial for doing a sitewide MTA using postfix, Amavisd,
and Spamassassin - so all the usual .scr, .exe etc files are blocked from
even being accepted - but since Sobig was in a Zip, it makes it through. My
exchange server has the nightly-updated antivirus so they do get cleaned, I
just wanted to eliminate the entire message from cluttering my mailboxes. If
anyone has a quick idea, feel free to email off-list if it's not considered
on-topic.

Thanks,

Geoff


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