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Date:      Thu, 24 Mar 2016 11:27:43 +0100
From:      Andrea Venturoli <ml@netfence.it>
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:  <56F3C11F.6060705@netfence.it>
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 03/23/16 17:31, Daniel Feenberg wrote:


> Is there a package out there that would block all email messages with
> binary executable content?

MIMEDefang comes to mind: I have it filter, amongst others, all .SCR, 
all .EXE if the customer agress and the latest fashion of a .JS inside a 
.ZIP.



> 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)?

That's harder, but I guess MD could do that if you find some external 
tool that can make that distinction.
Please let us know if you find anything in this regard.


  bye
	av.



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