.zip file passes through the filter

Julian Field mailscanner at ecs.soton.ac.uk
Tue Mar 2 16:11:58 GMT 2004


At 15:19 02/03/2004, you wrote:
>Hi, all,
>
>We met a .zip virus in our system and have to block all encrypted .zip
>files. I  modified  filename.rules.conf in /opt/MailScanner/etc as
>
>#allow  \.zip$                  -       -
>deny    \.zip$

That will generate a syntax error in your maillog. There should be 2 text
entries after the \.zip$ which are the log text and the user text of the
warnings it should generate.

Also, my comment below about tab separation applies here too.


>and in filetype.rules.conf I denied:
>deny    archive         -                       -
>deny    self-extract    No self-extracting archives     No self-extracting
>archives allowed

Are you sure those lines have the fields separated by tab characters? It
clearly says at the top of the file that they need to be tab-separated.


>But the infected .zip file still could pass through the filter. We are
>using the latest mcfee data file.
>
>Any suggestion?
>
>Thanks a lot
>
>Wei

--
Julian Field
www.MailScanner.info
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