Date: Thu, 24 Mar 2016 07:42:09 +0000 From: krad <kraduk@gmail.com> To: Olivier Nicole <Olivier.Nicole@cs.ait.ac.th> Cc: Matthew Seaman <matthew@freebsd.org>, FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: [Phishing]Re: Anti-virus for FreeBSD Message-ID: <CALfReydnyRqhqih-xYKba5BcqXSfN98MGBcZB%2Ba0Vvr1j8Jc2w@mail.gmail.com> In-Reply-To: <wu7a8lozdms.fsf@banyan.cs.ait.ac.th> References: <56F2CC22.9090500@FreeBSD.org> <wu7a8lozdms.fsf@banyan.cs.ait.ac.th>
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But a picture can contain a 1000 words, and it also engages different areas of the brain. However is an email a place for pictures? One can easily link to something, and thus side step the whole issue. On 24 March 2016 at 04:46, Olivier Nicole <Olivier.Nicole@cs.ait.ac.th> wrote: > Matthew, > > > It is not possible a priori to strip out any file belonging to some > > arbitrary application which implements some sort of embedded macro > > language, let alone tell if any such file actually contains any > > executable bits. > > If you know the format of the file, I believe you can scan it and find > if it contains macro. It's time consuuming and implies you have a large > knowledge of what every file looks like. Anti virus do that. > > > This is essentially the approach taken on these (FreeBSD) mailing lists, > > except here, it's reversed: all attachements are removed, except for a > > certain number of known-harmless ones, like PGP-Mime signatures or some > > simple text formats. > > I think one of the reason, beside security, is to keep the list lean: if > you allow attachements, you quickly end up with email send in the form > of Words documents... > > If you cannot explain your problem using plain ASCII only, then you have > to rethink what you are trying to explain first :) > > best regards, > > olivier > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" >
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