(The exploit is quite interesting; read my report if you have nothing better to do 🙄).
After developing the code to convert a hex file to its original format I thought I’d also implement the code to perform the reverse conversion as well.
HexFileConverter was born putting everything together in one program.
Allows you to convert a file of any type to hexadecimal format (and vice versa).
First of all download here HexFileConverter.
To convert a file of any type (e.g.
foo.txt) to hex format:HexFileConverter.exe foo.txtThe
foo.txt.hex file will be generated.To convert a file from hex format (e.g.
foo.txt.hex) to its original format (txt):HexFileConverter.exe foo.txt.hexThe
foo.txt file will be generated.Note:
In this case the file you want to convert must be located in the same folder as
HexFileConverter.exeIf not, you must specify the entire path of the file to convert (e.g.
C:\...\Desktop\foo.txt).
- Each hexadecimal number must be separated by a space.
- There must be at most 16 hexadecimal numbers in a row.
- The letters of a hexadecimal number can be either uppercase or lowercase.
- After the last hexadecimal number there must be a newline.
- The newline characters must be \r\n
- The hexadecimal file name must be
fileName.OriginalFileExtension.hex (e.g. foo.txt.hex).
-
You have also the original file, so you can throw away your unformatted hex file and use
HexFileConverter.exeto convert it to the correct hex format. - You don't have the original file, so you must convert it manually (small file) to the correct hex format or by creating a tool that does it for you (large file (sad story 😥)).
Here you can buy me a unicorn.
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