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#1 2020-07-10 21:35:46
- iceman
- Administrator
- Registered: 2013-04-25
- Posts: 9,537
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polygot files for MFC
Funny thread on twitter today,
@albertini the polygot posted this, about making a file that does nothing but the file commands detects a bunch of different formats. https://twitter.com/angealbertini/statu … 5875666944
Since the file was quite small a question came up, could this be used for rfid tag dumps aswell?
@doegox came through first last night https://twitter.com/doegox/status/1281490778364219392
His EML file is over at Gist https://gist.github.com/doegox/e7a258f0 … f34e1abd53
Once you convert it to binary, it isn't detected to anything, but you can unzip it and it decompresses a file.
funny! 
Now next question came, can it produces different detections aswell? short answer, yes it can.
now, the sample file is detected with multiple formats, can be viewed with PDF, can unzip,... meanwhile being a normal dump for mfc.
and of course it didn't end there....
The question came up if a dump could be made an executable aswell.
@neduchaljan accepted the challenge and https://twitter.com/neduchaljan/status/ … 2925341697
His sample dump file https://gist.github.com/TheDuchy/379650 … f679ae660b
So in short to test this, you can just download, cload to a magic card S50, and dump it, or just run the scripts to convert from eml -> bin, and do the testing in your shell.
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