$ ctf42

Cereal_Killer_02

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Author: TheZeal0t

Flag format: flag{...}

TheZeal0t reverse engineering @TheZeal0t

Created By: @TheZeal0t We have a new set of Spooky Cereals this year, in honor of our New Visitors, who have traveled so long and far to come visit us and to share their other-worldly wisdom with us!

Next up, we have the Nordics. They are Viking-looking dudes... or maybe, LotR Elf-looking bros. Kinda intimidating.

The Nordics communicate with us, as do the other Alien Species, through special made devices created by Lytton Labs. Using this device, we have gotten to know our new friends, and we have discovered that they each have a favorite terrestrial breakfast cereal!

To solve this challenge, download the encrypted 7zip file, which has a Linux and Windows challenge binary (only need to analyze one) to see what it is looking for, which will lead you to the flag. Oh... you also might find a little ... surprise in the 7zip file. You might want to add the little bonus program to your Windows Defender or other AV exceptions. It's fine. No, really... it's fine. If you don't trust TheZeal0t, run it in a VM (as-is with Windows or with Mono on Linux). The program is "packed" to keep degenerate miscreants (not YOU, of course!) from stealing Lytton Labs' intellectual property.

Submit the answer as deadface{I-For-One-Welcome-Our-New-Buggy-Overlords} ... which is not the REAL FLAG, by the way.

NOTE: There are NO SPACES (' '), PERIODS ('.') or ASTERISKS ('*') in the flag!

Download the encrypted 7zip file(128KB) SHA256: e4742efa2cb7c45353d7f87f4427f9abe3b450eea5469732e7b790647017c7ac

Password: KlippyAI

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