vendredi 19 juin 2009
Par Fred, vendredi 19 juin 2009 à 16:48 :: General
While writing the previous article, I decided to run a simple test: hide a well-known virus in a PDF file, and let's see what happens. Results are beyond expectation!
Par Fred, vendredi 19 juin 2009 à 14:39 :: Outils
As we explained in the previous article, streams are a really important kind of object in PDF. Any data is represented as a stream. However, keeping raw data in a file can be inefficient (think about encoding or size issues for instance). So, this article shows how to create / manipulate streams and filters with origami. In the end, you should understand why it is easy to conceal JavaScript in a PDF file.
Par Fred, vendredi 19 juin 2009 à 12:30 :: Outils
PDF file format is now very common. It is regarded as secure because most people believe it is static. It is not. In order to prove it, we have developed a Ruby framework, origami designed to play with PDF files.
