Exf at 10:00, 30 September 2022

2022-09-30T10:00:07Z

← Older revision		Revision as of 10:00, 30 September 2022
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	[[File:Task-automata.PNG\|thumb\|Task automata]][[File:Cat-automata.PNG\|thumb\|Cat automata]]		[[File:Task-automata.PNG\|thumb\|Task automata]][[File:Cat-automata.PNG\|thumb\|Cat automata]]
			[[File:Automata-flag.PNG\|thumb\|Automata flag]]

	===Description===		===Description===

Exf at 09:59, 30 September 2022

2022-09-30T09:59:53Z

← Older revision		Revision as of 09:59, 30 September 2022
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			[[File:Task-automata.PNG\|thumb\|Task automata]][[File:Cat-automata.PNG\|thumb\|Cat automata]]

	===Description===		===Description===
	I found a broken old machine in my basement. Can you help me reassemble it?		I found a broken old machine in my basement. Can you help me reassemble it?

Exf at 09:58, 30 September 2022

2022-09-30T09:58:00Z

← Older revision		Revision as of 09:58, 30 September 2022
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	* file		* file
	===Flag===		===Flag===
	<code>ctftech{now-i-listen}		<code>ctftech{now-i-listen}</code>
	===Links===		===Links===
	*[[CTF Challenges \| Back to CTF Challenges page]]		*[[CTF Challenges \| Back to CTF Challenges page]]

Exf: Created page with "===Description=== I found a broken old machine in my basement. Can you help me reassemble it? 100Pts ===Question=== Take a look at these odd parts and see if you can make sense of them. ===Solution=== First, I downloaded the file to a virtual machine. The file was a Zip file. When I extracted the zip file, three files came up. Files what was in zip file # automation_matrix # clunky_gizmo # long_apparatus I took a look at the contents of the files and found that they ap..."

2022-09-30T09:57:50Z

Created page with "===Description=== I found a broken old machine in my basement. Can you help me reassemble it? 100Pts ===Question=== Take a look at these odd parts and see if you can make sense of them. ===Solution=== First, I downloaded the file to a virtual machine. The file was a Zip file. When I extracted the zip file, three files came up. Files what was in zip file # automation_matrix # clunky_gizmo # long_apparatus I took a look at the contents of the files and found that they ap..."

New page

===Description===
I found a broken old machine in my basement. Can you help me reassemble it?
100Pts
===Question===
Take a look at these odd parts and see if you can make sense of them.
===Solution===
First, I downloaded the file to a virtual machine. The file was a Zip file. When I extracted the zip file, three files came up.

Files what was in zip file
# automation_matrix
# clunky_gizmo
# long_apparatus

I took a look at the contents of the files and found that they appear to be base64 encoded text. I tried to compile one file directly from the base64 code back, but as a single file the content didn't make sense.

Since the assignment says to look at these file parts I chained the files together with the command <code>cat automation_matrix clunky_gizmo long_apparatus | base64 -d > file1 </code>. I looked at the file that came from these, but with this combination the file didn't make sense. I cycled through the different sequences until I found the right one. <code>cat long_apparatus automation_matrix clunky_gizmo | base64 -d > file3</code>.

The file became an executable data file that told a story when run, but didn't give a flag. I then used the command <code>strings file3 | grep ctf</code> and got the flag.

===Tools===
* unzip
* cat
* grep
* base64
* file
===Flag===
<code>ctftech{now-i-listen}
===Links===
*[[CTF Challenges | Back to CTF Challenges page]]

Automata - Revision history

Exf at 10:00, 30 September 2022

Exf at 09:59, 30 September 2022

Exf at 09:58, 30 September 2022