a CTF team from Ural Federal University, Yekaterinburg
Sep 10, 2015
We are given an archive that contains a 32-bit Linux executable. Let’s analyze it in IDA Pro, starting from main function.
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We are given an address, an image of our goal (which looks like a 3x3 version of the 15 puzzle) and a strange hint.
Let’s connect to the given address:
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Apr 4, 2014
In this task we have a script at http://tasks.2014.volgactf.ru:28103/ that
accepts GET parameter e looking like a command. If command is valid, a result will be printed, otherwise we will get a blank
page. The first question - what language this command is written on?
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Apr 1, 2014
We have a facebook page. Firstly, let’s check the information. We can find his Instagram, vk page and a site.
To finish with facebook page I decided to read his post. In one message he writes that he want to download free music and about VK music.
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Mar 31, 2014
The the+monument+rocket.PSD was given. Opening it with Photoshop fails. So I checked the file type:
$ file the+monument+rocket.PSD
the+monument+rocket.PSD: JPEG image data, EXIF standard 2.21Well, let’s try to open this file as jpeg. It opens succesfully (there’s a reduced version below).
Mar 5, 2014
Try to extract downloaded 73168.zip. It’s password protected, but we can see that there is only 46783.zip file inside. So try password 46783.
