Tangential to the rest of the conversation, but I often use/write binary templates [0] for 010 Editor [1]. The GUI-driven approach to navigating structures (such as PE headers) can be very useful.

I wish there was a similar tool that allowed me to simply highlight and bookmark blocks of binary data when I'm dealing with an unknown file format, such as a firmware dump for something exotic and/or proprietary.

[0] https://www.sweetscape.com/010editor/templates.html [1] https://www.sweetscape.com/010editor/