I'll give it a whirl and see what happens. We get falses every few days
right now so I'll know within a week or so if it helped.

Thanks! 

-----Original Message-----
From: Doug Anderson [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, January 20, 2004 10:40 AM
To: [EMAIL PROTECTED]
Subject: Re: Filtering executables (was: RE: [IMail Forum] New "BAGLE"
virus in the wild!!)

Jason,
try this. you'll have to replace the dot-com with a period com

B~Content-Disposition\:\sattachment;\s*filename=".{0,100}\dot-com"\s{1,1
0}:c
[EMAIL PROTECTED]

do your exes, vbs, bat's, cmd normal and for com files use this. we
haven't had any sneek through but it doesn't get false positives

I posted it awhile back

----- Original Message -----
From: "Jason Loven" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, January 20, 2004 8:59 AM
Subject: Filtering executables (was: RE: [IMail Forum] New "BAGLE" virus
in the wild!!)


We have tried setting up Imail rules for filtering executable content.
We found that it would inadvertently trap some good emails because of
the .com extension on urls. I emailed Imail support and the tech's
response was that the rules work most of the time but Imail wasn't
designed to filter attachments and therefore the rules couldn't be
counted on to work for this purpose. We still have the rules in there
due to the danger of executable file types but I would like to hear from
anyone that has rules that work without occasionally nailing good
messages.

-----Original Message-----
From: Len Conrad [mailto:[EMAIL PROTECTED]
Sent: Tuesday, January 20, 2004 9:44 AM
To: [EMAIL PROTECTED]
Subject: Re: [IMail Forum] New "BAGLE" virus in the wild!!


Bagle's arrival apparently before the major AV databases were updated is
an excellent argument for rejecting all .exe's and other executable
email content with non-AV filtering rules before passing the msgs to AV.

Again, it's playing the averages and being prudent. Out 1000 .exe's (and
other executable email content) that arrive attached to/inside of email
these days, how many are not malicious?

Len


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