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    Founded in 2005, Hak5's mission is to advance the InfoSec industry. We do this through our award winning podcasts, leading pentest gear, and inclusive community – where all hackers belong.

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    Home  / Shark Jack

    Getting started with sharkjack.sh

    So you've gotten the basics down, tried out a few payloads, and now you're ready to take your Shark Jack game to the next level. One thing you may have noticed in getting your feet wet is the task of copying payloads to, and loot from the device. What's a hacker to do when something is done more than once? Script it, obviously. Enter: sharkjack.sh - now available for MacOS and Linux.

    The sharkjack.sh script is a pretty front-end that'll assist it not only loading payloads and getting loot off the Shark Jack, but it'll help you setup SSH keys so you can connect quickly - potentially without having to type a password. Further, it'll check to see if your Shark Jack is up to date, and if not it can upgrade the firmware on your device automatically. 


    Let's get started. Begin by downloading sharkjack.sh from the tools section of  downloads.hak5.org/shark. Then, open a terminal and navigate to the directory where you're keeping sharkjack.sh. I like to keep my scripts in my home directory, or ~, so I can quickly get to 'em by typing 'cd' and hitting enter. Next, make the script executable with 'chmod +x ./sharkjack.sh' and run it as root with 'sudo ./sharkjack.sh'


    From the sharkjack.sh main menu, pressing C will connect via SSH to the Shark Jack. It'll wait for you to flip the devices switch to arming mode (center positoin) and plug it into your computers Ethernet port. After authenticating with the Shark Jack, you'll have a 'root@shark:~#' prompt.


    If you want to make logging in even easier, pressing S a the main menu will copy your SSH public key to the Shark Jack - and if you haven't created SSH keys before, it'll guide you through the process.


    The other functions – like upgrading the firmware, pushing payloads to the device, and getting loot saved on its disk work similarly.


    So that's how to easily manage your Shark Jack using the sharkjack.sh helper script. We'd love to hear your thoughts on it in the forums, and you're welcome to contribute from the github repository. Cheers!


    Also in Shark Jack

    Writing a simple payload for the Shark Jack
    Writing a simple payload for the Shark Jack

    If you've worked in IT for a while you've come across this conundrum. Is this thing on? Without breaking out ye-olde-laptop, we're going to use the Shark Jack to test just this. Let's see how 5 simple lines of bash will give us instant feedback from the RGB LED.
    Two key commands for Shark Jack users
    Two key commands for Shark Jack users

    Whether on Windows, Mac or Linux – working with the Shark Jack is most convenient from the command line. Best of all, since modern versions of Windows ship with PowerShell, these work identically on all three platforms.
    Unboxing and setting up the Hak5 Shark Jack!
    Unboxing and setting up the Hak5 Shark Jack!

    So your Shark Jack just arrived, you've had a moment to appreciate the sweet metal case it comes in, and now you're eager to dig in and get your hack on! Keep reading.

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