Is it possible in the first place for malicious or executable code to occur
in a PDF?

John T
eServices For You

> -----Original Message-----
> From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
> On Behalf Of Markus Gufler
> Sent: Tuesday, April 26, 2005 10:40 AM
> To: [email protected]
> Subject: RE: [Declude.Virus] Adobe PDF embedded attachemt
> 
> 
> > Although Adobe recommends enabling scanning all file types in
> > order to scan a PDF (and ass/u/me'ing its embedded contents
> > as well), an AV scanner is not currently going to be able to
> > scan this encrypted content until the content has been
> > rendered/unencrypted at the desktop.
> 
> Is there any info from Adobe or any AV-company about the
ability/possibility
> to scan and detect such encrypted content.
> 
> If there is any possibilty to detect encrypted PDFs I think declude should
> be prepared to add "BANEXT ePDF" to the config file before there will
appear
> the first worms...
> 
> At this point maybe I can place also the feature request that we can block
> certain (archiving) file types if they have a small size and a suspicious
> file inside. For example all ZIP-files below 100 kB and any executable
file
> inside. This should help to block new virus variants until there are
> available appropriate signatures from the AV-companies. I'm not 100% sure
> but I can't imagine why someone should send a legit zip-file having a
small
> executable inside.
> 
> Markus
> 
> 
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