Hacking Homebrew 3DS-NetScan - A network port scanner for 3DS

siatm

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So I had a 3DS, too much free time, and wondered if I could run a basic network scanner on it. Turns out you can, kind of.I'm a CS student messing around with network stuff and thought it would be funny to have a portable scanner without carrying a laptop.

Tested it on my home network and it actually finds things.What it does:- Scans for active hosts in your network- Checks 70+ TCP ports per host- Grabs service banners (found my router was running dropbear SSH and a Python SimpleHTTP server on another machine)- Saves everything to SD card with timestamps- Configurable IP range, port lists, etc.

Does it work? On my network, yes. On yours? No idea.Is it better than nmap? Absolutely not.Why did I make this? Honestly no clue.

Built with libctru, plain POSIX sockets.

GitHub: https://github.com/SimonNoyaDominguez/3DS-NetScan
Release (.3dsx): https://github.com/SimonNoyaDominguez/3DS-NetScan/releases/tag/v1.0

Use it on your own networks only. I'm not responsible if you do something stupid with it.

banner_grabbing.jpg
descubrimiento_hosts.jpg


Router identified as ZTE running dropbear SSH 2014
and its own web server. All from a 2011 Nintendo 3DS.
 
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