Corrupted Image
Description
OMG! My flash drive was corrupted. Can you help me to recover it?
Attachment: corruptedFile
Solution
file normally will show the file type of the file. However in this case, the file type is not shown.
Therefore, we can try other methods like hexedit to see the hex of the file to check the file header. File header is another method to identify the file type.
We can see that there are IHDR and IDAT. We will know that this is a PNG image according to our experience. If you are still new to this and do not know what this is, you could also be able to find it through some google searching.
Through some research, we know that the file header of a PNG image is 89 50 4E 47 0D 0A 1A 0A. We can then edit the file. Once done, we will be able to identify the file type using file command.
We can use eog command to view the file. The flag is hidden inside the paragraphs, you could get the flag by combining all the capital letters in the paragraphs.
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