Ugh (paging Nibby and anyone who knows this shit)

"Wheelerguy" (wheelerguy) 04/18/2017 at 01:03 • Filed to: Computer Help

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How do I get my PNG file back? It won’t open in Paint, and error messages come up in Photo Viewer.

415s30 W123TSXWaggoIIIIIIo ( •_•))°) > Wheelerguy 04/18/2017 at 01:27

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Why you got a file on Papua New Guinea mate?

Wheelerguy > 415s30 W123TSXWaggoIIIIIIo ( •_•))°) 04/18/2017 at 01:36

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No fucking idea, mate.

415s30 W123TSXWaggoIIIIIIo ( •_•))°) > Wheelerguy 04/18/2017 at 01:51

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I’m going to bed

bhtooefr > Wheelerguy 04/18/2017 at 08:27

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It’s not gonna be easy - this is what PNG recovery looks like: https://github.com/ctfs/write-ups-2015/tree/master/plaidctf-2015/forensics/png-uncorrupt

Wheelerguy > bhtooefr 04/18/2017 at 08:32

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So what’s happening there?

{also, note to self: always save on Kinja upon finishing work.}

bhtooefr > Wheelerguy 04/18/2017 at 09:13

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What they’re doing effectively is comparing the file with the PNG specification of the file, and then brute forcing what’s corrupt to try to make it match what it’s supposed to be. Granted, my guess is that the corruption in your case isn’t the same as their corruption...