Nice Netcat

Tags: #picoCTF2021 #GeneralSkills

Description : There is a nice program that you can talk to by using this command in a shell: $ nc mercury.picoctf.net 21135, but it doesn't speak English.

Solution : Let us first use the given command provided . After running the nc command we get a bunch of numbers

If we look at the hint no 2 it talks about the ASCII . So all these numbers are not just any random number but some ASCII values which needs to be converted in characters . So i first save all output in a file named output.txt

So I wrote a simple python script that reads the each and every numbers from the file and convert it into a character and then combine all the character

And here we got out flag. Tip : Instead of writing a script we can either use any online converter or just we can use chatGPT .This will save time but by writing script we can improve our logic building process