[Esa-l]Sircam with application/mixed

John D. Hardin jhardin at impsec.org
Tue Jul 31 19:22:41 PDT 2001

On Tue, 31 Jul 2001, Lee Howard wrote:

> Currently I'm seeing 40-50 instances of Sircam get caught daily,
> but I am seeing some few get through.

Get through the virus scanner to the sanitizer, or get through the
combination to the end user?

> The only oddity about them that I notice is this:
> X-Content-Security: [server.deanox.com] original Content-Type was
> application/mixed;
> Content-Type: application/octet-stream;
> name="eurotecnica.doc.6177DEFANGED-bat"
> Content-Disposition: attachment;  filename="eurotecnica.doc.6177DEFANGED-bat"
> If I then run the same antivirus program on that attachment the
> antivirus program catches the virus just fine.  So, my assumption
> then, is that metamail is not decoding to file the MIME attachment
> because of the Content-Type being "application/mixed".

Is application/mixed even valid? I've never seen /mixed except in the
context of multipart/mixed. This could well be the problem. 

You might want to add "application/mixed" to /etc/mime.types, and make
it the same as application/octet-stream.

 John Hardin KA7OHZ   ICQ#15735746   http://www.wolfenet.com/~jhardin/
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