We are given an “m4v” file.  After trying to open it, it errors out.  Maybe it isn’t really an m4v file.  Let’s open it in HXD, hex editor. Hey look! …

whiter0se

We are given an “m4v” file.  After trying to open it, it errors out.  Maybe it isn’t really an m4v file.  Let’s open it in HXD, hex editor.

rosehex

Hey look!  There’s something.  It looks like it might be a substitution cipher.  Let’s copy that and drop it down into:

https://quipqiup.com/index.php

substitution

Bam, That’s the flag.  And it happens to be a quote from Mr.Robot which is also hinted at with the name of the file, a name of an episode in Mr.Robot.

Ashton-Drake, aka GameOfPWNZ, is an information security professional and enthusiast He is the owner of this blog.

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