
Extracting With pngdump.py – SANS Internet Storm Center
Inspired by Xavier’s diary entry “A PNG Image With an Embedded Gift“, I updated my pngdump.py program to enable the extraction of chunks and extra data (similar to my other analysis tools, like pngdump.py). Here is the analysis of the trojanized PNG file Xavier discussed: Notice that this PNG file has 11 “items”: 10 valid…