Find the secret file.

http://rup.chal.ctf.westerns.tokyo/

Hint1 (2016/09/04 16:31)

• The files/directories on the DOCUMENT_ROOT are below four.
  • download.php
  • file_list.php
  • index.php
  • uploads(directory)
• The number of files in the DOCUMENT_ROOT/uploads is 5. The directory have "index.html".
• You don't need scan tools.