RE: Anti-virus on Exchange

  • From: "Rick Boza" <rickb@xxxxxxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Tue, 15 Feb 2005 20:08:25 -0500

Some Exchange AV products - Sybari Antigen, for example - examine the
attachment 'blob' rather than looking at the extension.  Renaming the
file doesn't change the file type in the header, and thus scanning works
just as if the extension had never been changed.  Whether your clients
use OWA, Outlook, Entourage, or even POP your mail off with PocoMail,
you're still protected.
 
Oh, and following on John's suggestion, don't forget to lock down USB
drives.  Heck better get the fax machines and copiers too, those can
serve as security risks for getting intellectual property out of an
organization undetected as well ;)

________________________________

From: John Tolmachoff (Lists) [mailto:johnlist@xxxxxxxxxxxxxxxxxxx] 
Sent: Tuesday, February 15, 2005 7:20 PM
To: [ExchangeList]
Subject: [exchangelist] RE: Anti-virus on Exchange


http://www.MSExchange.org/


Banning of attachments is policy based. It is impossible for a virus to
spread automatically through OWA. If you are concerned about a user
using OWA to purposefully attaching a malicious payload to an e-mail
message to local users through OWA, then I assume you have removed all
floppy drives and CD drives from computers and have the desktops locked
down preventing the running of unapproved executables.

 

John Tolmachoff

Engineer/Consultant/Owner

eServices For You

 

-----Original Message-----
From: Raji Arulambalam [mailto:RajiA@xxxxxxxxxxxxxx] 
Sent: Tuesday, February 15, 2005 4:09 PM
To: [ExchangeList]
Subject: [exchangelist] RE: Anti-virus on Exchange

 

http://www.MSExchange.org/

How would you stop malware (worms, virus) from being introduced into
Exchange when using OWA with attachments enabled. You can send a binary
file by renaming it with a txt ext or some other thats allowed. So we
have disabled all attachments when using OWA. 

RajiA

         

        
________________________________


        From: John Tolmachoff (Lists)
[mailto:johnlist@xxxxxxxxxxxxxxxxxxx] 
        Sent: Wednesday, 16 February 2005 5:52 AM
        To: [ExchangeList]
        Subject: [exchangelist] RE: Anti-virus on Exchange

        http://www.MSExchange.org/

        I would rather not let the virus get that far. It is much better
to stop it before even touching Exchange.

         

        John Tolmachoff

        Engineer/Consultant/Owner

        eServices For You

         

        -----Original Message-----
        From: C Drawers [mailto:cdrawers@xxxxxxxxx] 
        Sent: Tuesday, February 15, 2005 8:32 AM
        To: [ExchangeList]
        Subject: [exchangelist] Anti-virus on Exchange

         

        http://www.MSExchange.org/ 

                What do people use and recommend as an anti-virus
product to for scanning of Information Stores?  

                 

                Thanks,

                C 

                 

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