AW: .fdf spam

R. Ehle (MailScanner Mailinglist) mailscanner at
Fri Aug 10 21:01:15 IST 2007


.fdf-Files normally are form data of pdf forms and might be dangerous. If you fill in a form, which has been designed in Acrobat, you can save the data as file (creates a .fdf file). Once you open the .fdf file, it will automatically load the form (a pdf file) too, wherever it is located at (i.e. from the internet)


Von: mailscanner-bounces at [mailto:mailscanner-bounces at] Im Auftrag von Iad Scoot
Gesendet: Freitag, 10. August 2007 20:06
An: MailScanner discussion
Betreff: Re: .fdf spam

I think that .fdf files are generated from the Adobe SDK - basically a dynamically-created pdf file.
On 8/10/07, Gareth <list-mailscanner at<mailto:list-mailscanner at>> wrote:
Today I got my first .fdf spam. It looks basically like a pdf file and
acrobat opens it as usual but because of the different extension I believe
the PDFInfo plugin did not scan it. I have mailed the plugin author to let
him know.

I doubt this method will last long. I had never heard of a .fdf file before
so I suspect it is something a lot of people will add to the file extensions
block list.

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