Amavis to detect .exe files in zipped attachments

polloxx polloxx at gmail.com
Thu Apr 4 18:12:05 CEST 2013


On Thu, Apr 4, 2013 at 10:33 AM, Michael Dukelsky <amavism at mail.ru> wrote:
> On 03.04.2013 17:23, polloxx wrote:
>>>> We'd like to block zipped attachmets which contain a .exe file.
>>>> What is the easiest (and fasted) way to accomplish this using Amavis?
>>>
>>> First check if .exe extension is not commented out in
>>> $banned_filename_re definition, then check that 'zip' is not commented
>>> out in @decoders definition in your amavisd.conf. This is enough.
>>> "Filename banning" is in fact a misnomer because when you switch on
>>> banning files with .exe extension, the file content is also checked, so
>>> if an executable has for example a .pdf extension, it will be banned.
>>
>> Thanks for your answer Michael but I have no @decoders definition and
>> no amavisd.conf.
>> (running amavisd-new-2.6.4)
>
> Do you run amavisd without a configuration file? Or is it just named
> differently? You may take amavisd.conf from the distribution
> http://www.ijs.si/software/amavisd/amavisd-new-2.6.4.tar.gz
>

On Debian amavisd.conf is spread over several files. It works now.
Thanks for your help.


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