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Date:      Wed, 23 Mar 2016 21:48:07 +0100
From:      Bernt Hansson <bah@bananmonarki.se>
To:        Daniel Feenberg <feenberg@nber.org>, Valeri Galtsev <galtsev@kicp.uchicago.edu>
Cc:        krad <kraduk@gmail.com>, Olivier Nicole <olivier.nicole@cs.ait.ac.th>, questions@freebsd.org, Wayne Sierke <ws@au.dyndns.ws>
Subject:   Re: [Phishing]Re: Anti-virus for FreeBSD
Message-ID:  <56F30107.7090301@bananmonarki.se>
In-Reply-To: <alpine.LRH.2.20.1603231224140.8892@sas1.nber.org>
References:  <wu7vb4fm8ji.fsf@banyan.cs.ait.ac.th> <CALfReyeHNrqZsCd_-3gMb+5RDEnW8aK2QfYCDRSBG+3bN5tpsQ@mail.gmail.com> <1458712914.1578.37.camel@au.dyndns.ws> <62985.128.135.52.6.1458748953.squirrel@cosmo.uchicago.edu> <alpine.LRH.2.20.1603231224140.8892@sas1.nber.org>

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On 2016-03-23 17:31, Daniel Feenberg wrote:
>
>
> On Wed, 23 Mar 2016, Valeri Galtsev wrote:
>
>>
>> Partly to toss some more fuel into the fire ;-) and partly to discourage
>> too harsh judgement of "some anti-vurus software not catching some
>> viruses" (or should I say virii as a plural of Latin word virus?)
>>
>> First of all, the whole anti-virus approach is fundamentally flawed. In
>> fact, you can not enumerate bad (what anti-virus is trying to do). You
>> only can enumerate good and prohibit everything else. So, don't be too
>> harsh on those [anti-viruses] that miss some of evil things sometimes:
>> remember, they are trying to do the task that is fundamentally flawed.
>>
>
> Is there a package out there that would block all email messages with 
> binary executable content? I understand that pdf and word files may 
> contain executable code - the package would have to be able to 
> distinguish such files with executable code and those without. (Is 
> that possible)?
>
> For us, that would be a satisfactory substitute for Kaspersky, perhaps 
> even a superior one.
>
> daniel feenberg

Yes. There was a port called messagewall, where one could block 
attachments and html and other nasty stuff.

Not in the ports any more.



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