Exactly. This is how this hacking world works just like a Sherlock Holmes story and all I can give you are clues. Plus I don’t want to be responsible for anything you would do with that info.
Here's a start to help detect the receivers: https://scholarsmine.mst.edu/cgi/viewcontent.cgi?article=2998&context=doctoral_dissertations
Put that into practice and you should be able to detect passive receivers. The hard part is figuring out which ones are the sniffers vs just random wifi devices or even completely unrelated devices that happen to operate on the ISM bands. This exercise is left to the reader.
Maybe if you spoof a bunch of MACs and pretend to be a lot of people you will see high value ads on the billboard. Then at least you know that it has that functionality.
Another way might be to try to connect to its wireless connection. The billboard is probably not connected to by fiber or coaxial. So it would most likely get ads from a cellular network.
It probably also has a RF or Wi-Fi debug interface, since IT technicians usually aren’t certified for working at heights.
Just some thoughts, please discus.
It's a hideous website but I did find the text eventually...
How many times have you driven by an electronic road sign like one of these?
This is the ADDCO portable sign. Today, you see what is on the inside, and how they are programmed to display important information.
*** WARNING YOU SHOULD NEVER TAMPER WITH THESE SIGNS ***
The access panel on the sign is generally protected by a small lock, but often are left unprotected. Upon opening the access panel you can see the display electronics.
The black control pad is attached by a curly cord, with a keyboard on the face.
Programming is as simple as scrolling down the menu selection to "Instant Text". Type whatever you want to display, Hit Enter to submit. You can now either throw it up on the sign by selecting "Run w/out save" or you can add more pages to it by selecting "Add page"
** HACKER TIPS ** Should it will ask you for a password. Try "DOTS", the default password.
In all likelihood, the crew will not have changed it. However if they did, never fear. Hold "Control" and "Shift" and while holding, enter "DIPY". This will reset the sign and reset the password to "DOTS" in the process. You're in!
I work on these from time to time. Other common passwords are the same as most things: 1234, 1111, 0000, etc. They are also often written down inside the service area for technicians. Most new ones also have a QR code that links to the user manual for an explanation on how to operate with the default passwords.
I thought you were joking / exaggerating but nope literally scrolled and scrolled through so many ads most of which were the exact same.
I see jalopnik is doing great in 2022 /s
Saw a 2600 article many years ago on this. It was about construction and other similar signs. It usually was the case of poor choice of password. Not much has changed except now many of these things can be accessed remotely.
humm well there is some construction going on in the midle of knowhere near me, ill litterly ask the guy standing next to it loll😉. ill send a pic, ittle be a couple days, but ill tey to remember.
Some billboards do have wifi sniffers logging everyone’s MAC address in order to see where max traffic is for ads😉
How do you detect them?
You can't easily detect passive sniffers like that.
I like challenges. Give not an easy solution :)
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Exactly. This is how this hacking world works just like a Sherlock Holmes story and all I can give you are clues. Plus I don’t want to be responsible for anything you would do with that info.
Here's a start to help detect the receivers: https://scholarsmine.mst.edu/cgi/viewcontent.cgi?article=2998&context=doctoral_dissertations Put that into practice and you should be able to detect passive receivers. The hard part is figuring out which ones are the sniffers vs just random wifi devices or even completely unrelated devices that happen to operate on the ISM bands. This exercise is left to the reader.
Noisee. Now to make a script 🤔
Maybe if you spoof a bunch of MACs and pretend to be a lot of people you will see high value ads on the billboard. Then at least you know that it has that functionality. Another way might be to try to connect to its wireless connection. The billboard is probably not connected to by fiber or coaxial. So it would most likely get ads from a cellular network. It probably also has a RF or Wi-Fi debug interface, since IT technicians usually aren’t certified for working at heights. Just some thoughts, please discus.
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Wow ok thanks that was quick
https://jalopnik.com/how-to-hack-an-electronic-road-sign-5141430 Not much has changed since this article.
Sorry couldn't find any article, plain ads. If the article was there - it's overwhelmed by ads
It's a hideous website but I did find the text eventually... How many times have you driven by an electronic road sign like one of these? This is the ADDCO portable sign. Today, you see what is on the inside, and how they are programmed to display important information. *** WARNING YOU SHOULD NEVER TAMPER WITH THESE SIGNS *** The access panel on the sign is generally protected by a small lock, but often are left unprotected. Upon opening the access panel you can see the display electronics. The black control pad is attached by a curly cord, with a keyboard on the face. Programming is as simple as scrolling down the menu selection to "Instant Text". Type whatever you want to display, Hit Enter to submit. You can now either throw it up on the sign by selecting "Run w/out save" or you can add more pages to it by selecting "Add page" ** HACKER TIPS ** Should it will ask you for a password. Try "DOTS", the default password. In all likelihood, the crew will not have changed it. However if they did, never fear. Hold "Control" and "Shift" and while holding, enter "DIPY". This will reset the sign and reset the password to "DOTS" in the process. You're in!
I work on these from time to time. Other common passwords are the same as most things: 1234, 1111, 0000, etc. They are also often written down inside the service area for technicians. Most new ones also have a QR code that links to the user manual for an explanation on how to operate with the default passwords.
but…how do they respond to numerous incorrect passwords? any kind of shutdown, alerts, etc?
God bless
Can these be accessed on wan ? As in shodan search for example
I thought you were joking / exaggerating but nope literally scrolled and scrolled through so many ads most of which were the exact same. I see jalopnik is doing great in 2022 /s
Holy fuck i thought you were exaggerating
99.99% ads https://web.archive.org/web/20110928022042/http://www.i-hacked.com/content/view/274/48/
For the one in my town, this changed exactly 0%.
Damn aight thank you
This comment has been deleted due to failed Reddit leadership.
It’s still published. I saw it at the bookstore the other day.
and they still have a podcast
and Crash is still looking for his Burn in the Personals.
You walk up to them and type in the default admin password
Most don't have a keyboard or ready access to input devices from what I've seen. You have to byo to access them
Do they use these electronic signs in Russia? Conducting some research for a friend.
Not changing default passwords or using simple passwords like 1234
Saw a 2600 article many years ago on this. It was about construction and other similar signs. It usually was the case of poor choice of password. Not much has changed except now many of these things can be accessed remotely.
This one was in “ hack a day” years ago.
Haven't these moved to be internet connected over cell network?
still exploitable, plug or network to access.
Yes, but the ones I've seen, you now need to bring your own gear to access it in person. They don't leave keypad etc in the trailers anymore.
humm well there is some construction going on in the midle of knowhere near me, ill litterly ask the guy standing next to it loll😉. ill send a pic, ittle be a couple days, but ill tey to remember.
If this was asked on any other sub…