Didier Stevens

Monday 29 January 2018

New Tool: jpegdump.py

Filed under: My Software — Didier Stevens @ 0:00

jpegdump.py is a tool I developed to analyze JPEG images. I have used it for a couple of ISC diary entries: Analyzing JPEG files, It is a resume – Part 3 and A strange JPEG file.

This tool reads binary files and parses the JPEG markers inside them:

It can help with corrupted images, here is an example of a JPEG file that was partially overwritten by ransomware:

The partial image starts from marker 3.

With options -f and -c, one can search through binary files with embedded JPEG images, like this Google Chrome process dump:

For more information, take a look at the man page: jpegdump.py -m


jpegdump_V0_0_3.zip (https)
MD5: 929F3EC096AEBEC642C44C6A6EE2895E
SHA256: C5C1CA151C7E24FB6E305E5116BE7B6BC4C417810217249D3831BE5805BBAA9F


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  4. Can i export the corrupt jpeg infected by ransomware encrypted 150kb from the header

    Comment by Vu Ha — Friday 27 March 2020 @ 17:37

  5. What’s the output of jpegdump?

    Comment by Didier Stevens — Friday 27 March 2020 @ 17:55

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