CTF Name: PicoCTF
Problem Name: White Pages
Date: 8/20/21
Problem Category: Forensics
point value: 250

When you first open the problem it gives you a .txt file to download where the flag is hidden.


Opening the file with notepad gets you a seemingly blank notepad, however you can highlight text on it.


Opening up the file using a hex editor you can see that the file actually contains some characters. There change at irregular intervals with some clear patterns.


Using Find Replace and changing the first character with 0s you get,


REplacing the other character with 1 you get,


That's a Binary number. Converting that to Ascii you get the flag.


picoCTF{not_all_spaces_are_created_equal_c54f27cd05c2189f8147cc6f5deb2e56}

Original writeup (https://github.com/RhysticStudies/Writeups/blob/main/PicoCTF/WhitePages/Writeup.md).