Which extension ?

Flag: HACKDAY{0a90407639c4155a2fa08ac4c97bfd08fa4856b31f167978918ffe0f1fa8defa}

Challenge

73B

secret_message.png

image

Ouvrir

Description

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I wonder if this is really an image…

Solution

Ce n'est pas un PNG mais un simple texte. La commande file permet de le voir ou il suffit de l'ouvrir en brut :

$ file secret_message.png
/mnt/e/Downloads/secret_message.png: ASCII text, with no line terminators

secret_message.png: ASCII text, with no line terminators

$ cat secret_message.png
HACKDAY{0a90407639c4155a2fa08ac4c97bfd08fa4856b31f167978918ffe0f1fa8defa}