Re: Blocking Extenstions

From: Adam Richard (adamrichardhold@yahoo.ca)
Date: 09/27/01 

Message-ID: <20010927084638.92212.qmail@web20108.mail.yahoo.com>
Date: Thu, 27 Sep 2001 04:46:38 -0400 (EDT)
From: Adam Richard <adamrichardhold@yahoo.ca>
Subject: Re: Blocking Extenstions
To: "'focus-ms@securityfocus.com'" <focus-ms@securityfocus.com>

Some products that do this exists, most AV programs,
ZoneAlarm, for servers there is MailSweeper... any
others?

But this is a weak protection against viruses, because
that can be easily circumvented by using
non-registered extensions to propagate code. For more
info on this, I suggest you read "Invisible file
extensions on Windows" at
www.geocities.com/floydian_99

Nothing against Exchange in itself, but the best
protection, besides an AV kept up to date on all
stations and servers, is to not use Outlook or Outlook
Express, which is where most infections takes place
nowadays. So whatever new virus that slips through to
your machines will be quickly restrained.

my 2¢

  --- Brian Vradenburg <vradenburg@ngen.com> a écrit :
> I know that out of the box, Exchange 5.5 cannot
> block attachments in emails.
> Can Exchange 2000 do this at all? If not, what third
> party software do you
> recommend for blocking attachments?
>
> Thanks,
>
> Brian Vradenburg

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