Tags: command
Rating:
This file has a flag in plain sight (aka "in-the-clear").
The challenge gives us a link to download which download a file named "flag" for us. After seeing that it is of a file-type unrecognized by Windows we can take the hint from the challenge name and try to use the unix "cat" command on it with:
cat flag
picoCTF{s4n1ty_v3r1f13d_2aa22101}