Re: [Declude.Virus] New Virus: Holar

2002-12-05 Thread Andy Schmidt
John,

by the time these announcements are SENT, the new virus signatures are
already out.

I'm actually LESS concerned about .EXE files that are recognizable as .EXE
files - people seem to be VERY aware of the need NOT to run .EXE files.  I'm
ONLY concerned about disguised .EXE files (that use the MIME trick to appear
to be a movie, etc.)


- Original Message -
From: "John Tolmachoff" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, December 05, 2002 02:18 AM
Subject: [Declude.Virus] New Virus: Holar


> New virus hitting the air waves.
>
> Glad we all block .exe.
>
> http://vil.nai.com/vil/content/v_99848.htm
>
> John Tolmachoff MCSE, CSSA
> IT Manager, Network Engineer
> RelianceSoft, Inc.
> Fullerton, CA  92835
> www.reliancesoft.com
>
>
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RE: [Declude.Virus] New Virus: Holar

2002-12-05 Thread Kami Razvan
Scott:
At one point you talked about detection of double file extensions.  Was
that ever implemented?

A lot of viruses come out as OpenThis.doc.exe -- the default windows
settings does not show the extension of known file formats so the .exe
will not show up but in essence it is a .exe.  So a lot of users get
fooled and double click thinking it is a Word file.

Just curious..

Regards,
Kami

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On Behalf Of Andy Schmidt
Sent: Thursday, December 05, 2002 9:16 AM
To: [EMAIL PROTECTED]
Subject: Re: [Declude.Virus] New Virus: Holar


John,

by the time these announcements are SENT, the new virus signatures are
already out.

I'm actually LESS concerned about .EXE files that are recognizable as
.EXE files - people seem to be VERY aware of the need NOT to run .EXE
files.  I'm ONLY concerned about disguised .EXE files (that use the MIME
trick to appear to be a movie, etc.)

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RE: [Declude.Virus] New Virus: Holar

2002-12-05 Thread R. Scott Perry


At one point you talked about detection of double file extensions.  Was
that ever implemented?


It's a good idea, but tough to implement properly.  The problem is with 
filenames such as "www.yahoo.com.url", and "spreadsheet.2002.nov.xls".  So 
adding such detection would get a bit complicated.  Setting it up to only 
catch certain double extensions -- such as "*.*.exe" might be a good idea, 
though.
-Scott

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RE: [Declude.Virus] New Virus: Holar

2002-12-05 Thread Stephan Fix
Wouldn't the double extension just get blocked by the exe rule?

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On Behalf Of R. Scott Perry
Sent: Thursday, December 05, 2002 9:33 AM
To: [EMAIL PROTECTED]
Subject: RE: [Declude.Virus] New Virus: Holar



>At one point you talked about detection of double file extensions.  Was

>that ever implemented?

It's a good idea, but tough to implement properly.  The problem is with 
filenames such as "www.yahoo.com.url", and "spreadsheet.2002.nov.xls".
So 
adding such detection would get a bit complicated.  Setting it up to
only 
catch certain double extensions -- such as "*.*.exe" might be a good
idea, 
though.
 -Scott

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RE: [Declude.Virus] New Virus: Holar

2002-12-05 Thread R. Scott Perry


Wouldn't the double extension just get blocked by the exe rule?


It would, if you block .exe files (which many ISPs can't do, for 
example).  For people that don't block .exe files, the "*.*.exe" blocking 
could be useful.
-Scott

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RE: [Declude.Virus] New Virus: Holar

2002-12-05 Thread Doug McKee
Is the syntax then?

BANEXT  *.*.exe

Doug


>Wouldn't the double extension just get blocked by the exe rule?

It would, if you block .exe files (which many ISPs can't do, for 
example).  For people that don't block .exe files, the "*.*.exe" blocking 
could be useful.
 -Scott

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RE: [Declude.Virus] New Virus: Holar

2002-12-05 Thread R. Scott Perry


Is the syntax then?

BANEXT  *.*.exe


No.  That will literally ban E-mails with an extension of "*.*.exe", which 
no E-mail will have (since the extension in such a file is actually "exe").
   -Scott

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