[Declude.Virus] Bannotify.eml skipifsender forged

2004-02-23 Thread Markus Gufler
Would it work to put 
 
SKIPIFSENDER [Forged]
 
in the top of the bannotify.eml file?
 

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Re: [Declude.Virus] W32.Netsky.B@mm Slipping through

2004-02-23 Thread R. Scott Perry

We've gotten several, here are a couple:
02/18/2004 10:33:12 Q93c835e1004873e1 Scanned: Virus Free [MIME: 2 22065]
02/18/2004 15:56:37 Qdf95a7880150b2de Scanned: Virus Free [MIME: 2 22057]
Running F-Prot, Mcafee and now AVG.
The "Virus Free" message means that none of the virus scanners detected a 
virus.

Most likely, these are corrupt, non-viable variants.  With Netsky, we've 
seen a version in .ZIP files that were corrupt (yet about the same size as 
normal), so that it would not be possible to extract the virus out of the 
.ZIP file.

   -Scott
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Re: [Declude.Virus] Bannotify.eml skipifsender forged

2004-02-23 Thread R. Scott Perry

Would it work to put

SKIPIFSENDER [Forged]

in the top of the bannotify.eml file?
No.  If a virus is detected, the bannotify.eml file won't be sent out 
(virus scanning takes priority over banned file extensions).  Without 
knowing the name of a virus, it is not possible to determine if it is a 
forging virus.

   -Scott
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RE: [Declude.Virus] Bannotify.eml skipifsender forged

2004-02-23 Thread Markus Gufler

> No.  If a virus is detected, the bannotify.eml file won't be 
> sent out (virus scanning takes priority over banned file 
> extensions).  Without knowing the name of a virus, it is not 
> possible to determine if it is a forging virus.

Ok, I understand.
Today I've had the following NDR in the postmaster mailbox:

=

Unknown user: [EMAIL PROTECTED]

Original message follows.

Date: Mon, 23 Feb 2004 09:23:35 +0100
Message-Id: <[EMAIL PROTECTED]>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
From: "Postmaster" <[EMAIL PROTECTED]>
Reply-To: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Subject: Delivery Failed
X-Mailer: 


Sender: [EMAIL PROTECTED]
Recipient:  [EMAIL PROTECTED]
Extension:  pif

=


I the logfile I can see the following 3 lines for the message causing the
bannotify message above:

02/23/2004 09:23:35 Qb88600530094b521 Scanned: Banned file extension. [MIME:
2 41]
02/23/2004 09:23:35 Qb88600530094b521 From: [EMAIL PROTECTED] To:
[EMAIL PROTECTED]
02/23/2004 09:23:35 Qb88600530094b521 Subject: hello


There is no "Virus free" above this two lines.

As it was this single NDR I've received it seems nothing very important.
Only to understand why...


Markus

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RE: [Declude.Virus] Bannotify.eml skipifsender forged

2004-02-23 Thread R. Scott Perry

I the logfile I can see the following 3 lines for the message causing the
bannotify message above:
02/23/2004 09:23:35 Qb88600530094b521 Scanned: Banned file extension. [MIME:
2 41]
02/23/2004 09:23:35 Qb88600530094b521 From: [EMAIL PROTECTED] To:
[EMAIL PROTECTED]
02/23/2004 09:23:35 Qb88600530094b521 Subject: hello
There is no "Virus free" above this two lines.
That is correct.  Because you have chosen to block the file extension, it 
is assumed to be dangerous, and therefore even though the virus scanner 
does not detect a virus, the "Virus free" line is removed.

   -Scott
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[Declude.Virus] WORM_MYDOOM.F

2004-02-23 Thread Bill Landry
A new variant of W32/[EMAIL PROTECTED] that we just caught a couple of.  RAV nor
F-Prot caught it, but TrendMico, ClamAV (Clam id it as MyDoom.E) & McAfee
did.

The attachments were named:  object.zip & hnmhjn.exe
Subjects were:  JPWMDWXACRNSN & Fake

Anyway, be on the lookout...

Bill

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