full-disclosure - Trojan Horse for Mac OS X

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Message-ID: <EA2E771C-8A79-11D8-901D-000A958E4F56@joshie.com>
From: jlevitsk at joshie.com (Joshua Levitsky)
Subject: Trojan Horse for Mac OS X

On Apr 9, 2004, at 6:53 PM, Larry Seltzer wrote:

>>> This technique wouldn't work now because Mail.app, and probably all
>>> modern mail client. Will not let you execute code from within the 
>>> mail
>>> client.
>
>> Completely untrue. Mail.app will ask you if you want to open the app 
>> just like Outlook
> Express on Windows does.
>
> Actually, Outlook Express and Outlook will (by default) strip all 
> executable attachments
> before you even get them. They've done this for some time.
>

Actually this is not correct. By default they will deny you the ability 
to save or open the attachments, but they do not strip anything. My 
experience is that users almost always turn off that feature so they 
can save those questionable file types again. The feature on or off 
will still leave the attachments on the emails.

-Josh