sabato 8 settembre 2018

Beginners Quest (Google CTF) - 7° Floppy

Today is a Saturday. Wow, weekend.

I want to continue our journey




Used tools:
  • binwalk
The state of the art is


And the beginners quest of today is


As always, download the attachment, check the file type, rename it and extract the content:
  • file 4e69382f661878c7da8f8b6b8bf73a20acd6f04ec253020100dfedbd5083bb39
It is a zip file.
  • mv 4e69382f661878c7da8f8b6b8bf73a20acd6f04ec253020100dfedbd5083bb39 floppy.zip
  • unzip floppy.zip
The content is composed of one file called foo.ico. If we type:
  • file foo.ico
we get:
foo.ico: MS Windows icon resource - 1 icon, 32x32, 16 colors

This is clearly a steganography quest, we need to extract the content of this .ico file. Let's type:
  • strings foo.ico
and we get some strings where we understand that in this file is probably hidden a file called driver.txt.

Just use the binwalk tool to extract hidden files from the foo.ico file:
  • binwalk -e foo.ico
If we type ls command, we note a folder called _foo.ico.extracted, just access on it and you will see 3 files: driver.txt, www.com and 2FD.zip.

Just open the driver.txt file and you will get the solution key.

At this point, our path will be



If you want to be SPOILED for the solution key, just click below

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