solution.md

No strings

Steps

Download the file

Open the file in a hex editor, I used HxD

Found the flag in the file

D�U�C�T�F�{�s�t�r�i�n�g�e�n�t�_�s�t�r�i�n�g�s�_�s�t�r�i�n�g�}

Remove the null bytes between each character of it.

Flag

DUCTF{stringent_strings_string}