Malware Domain List

Malware Related => Tools of the trade / Internet News => Topic started by: SysAdMini on November 10, 2009, 04:43:03 pm

Title: Hiding a PDF document
Post by: SysAdMini on November 10, 2009, 04:43:03 pm
http://blog.didierstevens.com/2009/11/09/quickpost-hiding-a-pdf-document/

Quote
Here’s some Python code (it uses my mPDF module) to append a new PDF document to an existing PDF document to “hide” the original document. Recovering the original is trivial, you open the PDF document with a HEX-editor and delete the appended document (starting after the second %%EOF counting from the end of the file). This trick uses incremental updates.