Thousands of Android TV devices come with unkillable backdoor preinstalled

Vent@lemm.ee to Technology@lemmy.world – 578 points –
Thousands of Android devices come with unkillable backdoor preinstalled
arstechnica.com
180

Worth pointing out this isn't any proper Android TV devices, but rather those cheap boxes that are often basically SBCs with AOSP installed on them which are predominantly sold as easy piracy boxes.

Edit: in fact, the article doesn't currently have TV in the title

Leaving out the TV makes it less precise and more clickbaity because then it sounds like Android phones are affected.

I guess the problem is that "Android TV" is a specific thing that none of these devices actually are, they're just dodgy boxes running Android that can be plugged into a TV.

For me it's more clickbaity because Android TV isn't actually involved here at all.

I'd say it would be more clickbaity if you just removed the "TV", because it'd make you think of smartphones, and those would be much more concerning

Yeah I'm not sure what the correct headline is, but at least for me I definitely clicked because I thought it was to do with Android TV, which it wasn't. It was about those cheap boxes that anyone reading Ars already knows are probably filled with malware

Aren't the boxes running "Android TV", the set top box oriented flavor of Android, with e.g. the launcher designed to be operated with a TV remote and not a touch screen?

They are not themselves TVs, though, and I guess nowdays it might be most common for "Android TV" to run on the TV instead of on a separate device.

Those boxes are in a skin for normal Android to make it work with the TV. The only device you likely come in contact with with Android TV is the new Chromecast or a Sony TV. Other than the Nvidia shield and the Chromecast most actual Android TV devices still come with malware from the manufacturer. Even the Sony TVs, but basically every Smart TV comes with malware to spy on what you're doing too.

I think the new dish network's at top box also runs Android TV, maybe you found one of those wild.

That's the problem, they're not running Android TV at all. Just regular phone Android with some third party launcher.

Are you sure? One can definitely build images of the actual "Android TV" for various SBCs and the sorts of SOCs in these TV boxes, and then load them up with malware. Why wouldn't they use that?

Honestly, I'm not entirely sure why, but for whatever reason these boxes are always running a pretty old version of regular Android. (Edit: in fact googling a couple of the devices in the article seems to confirm that)

Maybe there are more protections preventing this kind of malware on newer versions? Maybe someone just made the images a long time ago and people are just reusing them

Why not just find a different website reporting the story with a better headline? Rather than sharing the one with the headline you fear is misleading?

It's only slightly misleading and Arstechnica writes really good articles. It's pretty much the only news site I regularly browse.

Can you even get an actual Android TV device now that isn't a Chromecast or an Nvidia shield? Other than a few TVs that mostly come with malware (tcl, Sony, Hisense) I can't think of anything else that has actual Android TV you can buy as a consumer.

I miss having a dumb tv

If I don't connect it to the internet they don't get to sell ur data innit

I only watch pirated content. What data are they selling?

Your viewing habits. Nature shows? Show this guy camping gear ads on his phone!

You know, if I did get relevant ads from all of these places that are supposedly tracking everything that I do and monitoring my likes, I wouldn't mind ads so much. But the fact that even though Google, for example, knows everything that I do and everywhere that I go and everything that I like, they still serve me irrelevant ads that I would never care about in a billion years. All of this touted targeted ads bullshit technology and it doesn't even work. So I don't care, harvest everything that I like and everything that I do. Because it doesn't work anyway.

Bro being a regular sucks and it even sucks more when you don't know what you're taking about. They will sell you Nike while making you think that you're life sucks because you're fat.

3 more...

Ah well goodluck google. I haven't seen a single ad from past 6-7 years. Next DNS on my router, Linux mint with Firefox (ublock origin) and same for android.

Nice! I do pretty much the same except for the dns part. I'll look into it.

Having said that, I've always said that we should be able to purchase dumb TVs, and when people say "just don't connect it to the net," they're missing the point, because they're still enabling these companies (this is not directed at you specifically. It's just an argument I keep hearing.)

3 more...
3 more...

Shit will want to connect some way. If I ever have to buy a smart TV for myself, I'm opening it up and swapping the brain board or removing the antenna.

3 more...

Walmart sells Sceptre 4k tvs which are dumb, sure they aren't OLED or have amazing refresh rates but they are the perfect TV for most people, it's much easier to chuck and buy a new $20 streaming device when updates make it crawl to a near stop than it is to do the same with a $600+ TV.

These new Led backlit tvs die like every 2 years and need led strip replacement. I had to repair mine 3 times now while my old lcd tv never died in 15+ years and I gave it to my dad who is using it for past 8 years daily.

LOL I'm still using an old CRT TV because it just won't die and I barely watch TV

I'm annoyed that they don't sell them and that even if you don't connect a smart tv to wifi to keep it dumb it'll still not just be a display and it'll try to shove stuff in your face

I bought a Hisense and it had the option during setup to disable most smart features and leave it in “basic mode”. I was already going to put an Apple TV in it so I just left it there and I’ve been happy. Only thing a tv needs is settings and the ability to change inputs.

android tv has this option at setup, like Sony and whatever else

your Hisense has android tv pre-installed

Most TVs have an office or presentation mode hidden somewhere in the settings, that will get rid of the ad-ridden interface and replace it with a plain and functional one. That plus no wifi, ever, gets them sorted.

Any Smart TV can be a dumb TV if not connected to the internet

And what you will do with the preinstalled malware and bloatware?

Whats the malware going to do?

Lock you out? Instant refund and negative review. Steal your info? Cant send info out without internet.

But it will still be a bloat and take up resources like any deamon/service and resources are already very low on these devices!

Not connecting to internet is not a solution but buying dump TV is.

I gave mine up when I had to move cross country. I miss it dearly.

4 more...

That's why you should build your own media center from an old machine. Much safer and more private.

How?

  1. Connect old PC to TV. Both can be 15 years old.
  2. (optional) For better performance, get a small SSD alongside the big HDD (a 64GB / partition will do), maybe have a homemade NAS ready too
  3. Install Lubuntu, Mint XFCE, Puppy Linux or any other distro of choice
  4. Set up KDE Connect, qBittorrent and VLC
  5. Enjoy

Cheers, I'm using this as a jump off point for a weekend project maybe. Would anything change if I was interested in casting content too?

I think Kodi does some casting... Not 100% sure.

Make sure TearFree is enabled in the graphics configuration (google it).

The hardest part in my project was recalibrating the colors because my TV in HDMI-RGB mode (as opposed to YCbCr) displays everything below 10% brightness as black. The rest was done very quickly. I don't even need a sequential-chunk torrent software because I use FreeRapid Downloader and ulozto.net (can download fast enough to play while downloading at reasonable 720p/1080p bitrates, otherwise ulozto-downloader and a 10min wait is needed).

Kodi supports DLNA, a media library sharing/casting standard.

Stremio on a old windows laptop is a good easy alternative

Could you use a pi ? Do you have any recommendations on ssd / hdd

You can use a relatively cheap Pi as a NAS (network-attached storage - there are ready-made solutions but expensive and don't get updates for nearly as long), and possibly add Kodi media server capabilities (useful for smart TVs). Check if that model supports a sufficiently fast disk interface (USB 3.0, SATA etc.) and Ethernet (100 Mb/s or better if 4K is required). Boot from an SD card and use a 2TB+ HDD (1TB could be enough if you barely store anything). Most disks from the past 10 years will be good enough to play 4K video from if no OS is running from them. Go for a lower-end one but not ridiculously cheap, and check that people aren’t frequently complaining about the model or product line.

I don't know which Pi models can smoothly play HD video without overheating, I don't own any. But those that can are likely a lot more expensive than old PCs you could use otherwise. I would just get a cheap one for a NAS and probably some other common network use cases (web server, Pihole etc.)

My RPi 2B plays HD vids without stuttering or overheating. 4K doesn't work tho, so if you want that, get a newer model. I don't think they even sell the 2B anymore because it's so old.

Are dedicated media-centered OSs (fast boot, remote control) available?

Yes, I'm using libreelec, I and friends control the display from our phones using the Kore app. Makes searching and typing easy, works great on my Pi. Fun game, which of you will select a movie first on your phones lol.

Note: pi3B can do 1080p but it struggles a little if the codec is anything other than h264, because Kodi decided to stop supporting closed source drivers. If you're playing anything above 1080 and anything other than h264, go for a pi 4 or better.

Yes just research how to install Plex or Kodi on your pi. I just did it this evening for an update. For that I used docker with Linuxserver/Plex. It takes some time to get all the settings but there are good YouTube tutorials on how to do it.

Great news. I have a pi I'm not really using. Be a good project for it.

You'd be better off with a used office pc, something with a 4. Or 6. gen Intel CPU is usually cheaper than a RPI and way more versatile. Only thing you lose on is size and power consumption.

OK I've tried in the past to make a decent streaming box from both windows media center edition and various Linux distros. But I need something that is simple, can be controlled entirely from a remote, and has the major streaming apps (Netflix, disney, etc). I haven't really found any solution that's easy enough for non techie people to use. I have a standalone roku box that works ok we also have a roku TV which is a giant piece of garbage, and I'm considering buying an external roku or nvidia shield as a streaming box instead, I do have a couple of raspberry pi 4s I could use one but again I'm faced with the same issues.

1 more...
1 more...

Look into Plex servers, that should keep you busy for the next six months till you get it up and running.

Or Jellyfin. Because free.

Is jellyfin a better alternative?

Yeah, it's free and open source. I just pointed it at a few folders of TV, movies and music that I downloaded years ago, and it catalogued them all, downloaded all the blurbs and posters.

Like a mini Netflix that you host yourself.

Sounds great. I'll just need to take the time to actually do it

There are jellyfin, Plex and emby shares you can subscribe to for cheap, try it out before blowing money and time on a set-up that needs constant tinkering, it's easy to just download an app and connect to your remote library somewhere that someone else spends time on. I use a shield I got 6 years ago, but now also the Amazon fire stick 4k max on another TV and everything is just easy and seamless while using a Plex share that's 9 euro per month.

Yeah I have been meaning to look into it. It's just another massive time and money sink.

That will keep you busy for a full year.

What are you talking about. First time I set it up, had it running on my local network in less than 5 minutes. 5 more minutes for external (granted, already had the infrastructure for that in place).

Then maybe 20min going through the settings to personalize my account? And maybe another 20min looking if there are any plugins I wanted to use.

It's true, the setup with docker is easy and reliable. However, sorting and taking your media takes very long.

Not even docker, I just pulled it from the aur, lol.

And yeah, that's fair. Though not really Jellyfins fault if it's not sorted already. Same goes for Plex.

People pull shit out of their asses to feel superior about things they don’t actually know anything about.

I don't think it's a year to setup the software. Rather a year to load it lol. I've spent probably close to 4 years loading content into my Plex server and I don't see any end in sight.

It'll only take a few minutes to setup. Once you get hooked you'll spend a lot more time automating everything and adding more storage.

1 more...

The problem is that YouTube app and F1 app are Android only so having a Linux media box won't help. It needs to run Android to run Android apps.

Plus I like to use Chromecast, we use it all the time to send YouTube videos from our phones to the big screen.

What's wrong with using YouTube in a browser?

Can't control it from my phone. Would need a mouse. At least I'm tech minded. My wife isn't and there is no way she would stand for using a mouse and browser on the TV.

Ah, right, makes sense. I'm using a steam controller (or any other controller with steam, honestly) instead of a mouse, which works well enough

1 more...
1 more...

I don't know about apps like F1 and Chromecast, but I can see that it could be a problem. But YouTube has worked fine for me with the MPV player. Maybe you could try Android-x86? (is that thing still alive? 😅)

1 more...

I swear shit like this is why Lemmy is so incredibly out of touch with the real world. I can't take the community seriously anymore.

So my home media center is not real world enough? I only expressed an opinion; you are free to ignore it. Also, there is nothing that keeps you here. Please kindly keep in mind that most Lemmy users right now are interested in technology, you can't take that away from them and there is nothing wrong with it. If you want to stay away from "shit like this", then, with all respect, you probably should not be in a technology sub in the first place.

I think the difference is folks confuse the general public with the general lemmy user. And I can't tell if the fediverse and lemmy are supposed to be attempting to be a front page for general folks or lemmy early adopter folks.

I agree. Too many comments and threads are hijacked or over represented by the pro piracy crowd. I wish more communities would just ban the shit post of "yar, time to sail the high seas" that seem to be the top comment on any media related post.

4 more...

You're going to build your own smart TV that can handle new HDMI and Displayport advancements too?

This is going to come as a shock to you, but HDMI has been a thing since 2004. You can find 15 year old dumb TVs with HDMI. If the TV had HDMI, it can handle any format that the screen can physically show and newer versions are backwards compatible.

Or you could just use a new tv with smart features and never connect it to your network. It's what I've done with all the TVs in my house and I simply use an external device I trust to stream.

This is going to be such a nightmare as smart devices become the majority.

Didn't connect your TV to the Internet? Don't worry, it'll spy on you by connecting to the neighbor's tv. Or the built-in WiFi in the modem. Or the power company's smart meter via powerline-networking.

Products are going to be engineered to sell backdoor access at a hefty price, if they aren't already.

Things are going to get scary.

Just like anything with technology though, there will be people in the other side too. Does that magic TV with a mind of it's own have a USB port? If they take away the USB , they will have to add some way to maintenance it. There will always be a way to get at the kernel if you know what you're doing.

It's going to become this horrible game of cat and mouse, for anyone who actually values privacy.

Sure, you could open the device up, remove any antennas. You could add powerline filtering. You could find the jtag or debug ports. You could find a way to hack it. Jam a signal. Make an ultrasonic white noise machine. Wrap the thing in foil. Cover the cameras.

The individual has to block every channel of "attack". The data miners only need to get lucky once.

Newer "smart" sets, particularly from Vizio and a couple other brands, will not let you exit the setup or use the inputs without an internet connection

Wow, I would immediately return any TV that pulled that bs. I have used Sony TV's for a very long time and have never encountered this issue, I even bought a new one in summer 2022 and it did not require Internet connection to function.

LTT reviewed a Roku one like that recently and for some reason didn't recommend immediately binning it.

Pff sure. How hard can it be? Few resistor thingies and some capaci-whatsists, and Arduino, done.

Almost any ARM SBC and a dumb TV will do, install linux/a minimal wayland compositor and waydroid and youre laughing

Any time there's a advancement you just update the board, instead of the whole TV (which its not like normal smart TV's update their ports anyways?)

6 more...

Wait, smart devices might not be secure?! I'm shocked!

Are non smart TVs even still a thing nowadays? I don't own or watch any TV so I honestly don't know how the market currently looks like.

Yes. They are sold for commercial use, e.g., McD’s menu, and are quite pricey.

Depends on your definition of "quite pricey." There's no equivalent of a $250 50" Insignia FireTV, but I've seen Samsung signage displays on Amazon for about a $75-$100 premium over their comparable Smart TVs. They also don't come with a stand, so if you weren't already buying a VESA mount you'll need to add another $40-80. There is a significant premium, but it's not necessarily orders of magnitude.

And they're made better... To be on 24x7. So you're also paying for a better quality display. That's worth paying for too.

Apparently "smartness" has not invaded projectors...per a comment I read here on kbin a while back from a projector owner. This really encourages me to buy one.

It did though, last time I went to a tech store, there was a samsung smart projector that had all the capabilities of a smart tv

Although a projector would need you to have a home with a whole spare wall. And would force you to dim the lights all the time.

They're harder to find, for sure. Especially if you want a large screen.

When I was shopping around a few years ago, the only 65" TV I could find without smart features was a Sceptre, which is Walmart's electronics brand. Speakers so bad that I had to buy a sound bar, and the display isn't that great, but it gets the job done and I don't need to worry about it being an attack vector.

They get called “monitors” a lot (depending whether you need them to pick up cable/airwaves of course)

Yepp - hop on Ebay or some surplus auction site, and search for commercial/signage displays. Don't bother buying new unless you have the money for it IMO, they are expensive unless you get them used

Edit: typo

Not really but you can always get a "smart" tv and never connect it to the Internet. If you want to stream just use an external device you trust like a PC

1 more...

These are just generic Android TV devices that use Allwinner board. Allwinner made these kind of generic boards for Android TV and Android Auto head unit and sell them to OEMs. The OEMs then "customize" it by adding their APKs into the ROM provided by Allwinner. I doubt the malware come from Allwinner. Maybe it's just one (or more) OEM that include whatever APK they found on the internet without checking.

In total the researchers confirmed eight devices with backdoors installed—seven TV boxes, the T95, T95Z, T95MAX, X88, Q9, X12PLUS, and MXQ Pro 5G, and a tablet J5-W.

The other thing discussed is fraudulent android apps that have been removed from the play store.

This is the best summary I could come up with:


This week, cybersecurity firm Human Security is revealing new details about the scope of the infected devices and the hidden, interconnected web of fraud schemes linked to the streaming boxes.

“They’re like a Swiss Army knife of doing bad things on the Internet,” says Gavin Reid, the CISO at Human Security who leads the company’s Satori Threat Intelligence and Research team.

“This is a truly distributed way of doing fraud.” Reid says the company has shared details of facilities where the devices may have been manufactured with law enforcement agencies.

In the second half of 2022, Human Security says in its report, its researchers spotted an Android app that appeared to be linked to inauthentic traffic and connected to the domain flyermobi.com.

When Milisic posted his initial findings about the T95 Android box in January, the research also pointed to the flyermobi domain.

The company’s report, which has data scientist Marion Habiby as its lead author, says Human Security spotted at least 74,000 Android devices showing signs of a Badbox infection around the world—including some in schools across the US.


The original article contains 455 words, the summary contains 180 words. Saved 60%. I'm a bot and I'm open source!

I rememberLinus Tech Tips talking about that month ago:

https://youtu.be/1vpepaQ-VQQ?si=t52OHvJ79nnXSsYC

Do you have a credible source instead?

Still more credible than 90% of random tech outlets.

3/10 is still not a good rating, even if strictly better than 2/10

Woah, I just checked, and apparently they are back to releasing videos.

1 more...
1 more...

My OctoPrint server runs on one of these (previous homeowners left it lying around), but I completely nuked Android and installed the Armbian distro for the Inovato Quadra (itself just a carefully sourced and rebranded TV box). It was tedious though, and I'd never buy one for that purpose when there are dedicated SBCs.

5 more...

Definitely not unkillable tho

installing your own OS and/or bootloader is a pain and most of the time unfeasable. And that's the only way to safely kill software based backdoors.

Even then, unless you also blow away the firmware, you can't be sure it's clean.

on Android, the OS is the firmware. If you talk about peripheral firmware, I'd not call it "software based" anymore.

Looks like my old bravia and rpi is a good combination.

Chinesium devices, anyone?

You have a device not made in China?

I have a tv built in 1978, it was made somewhere in Michigan dont know where the sticker is faded in that part.

Cool. 500W worth of lamps for (maybe) 32" of terrible quality picture?

Its actaully widescreen and the picture quality is surprisingly decent.

Except that old CRT cannot display modern digital images.

Its called google and it infects all stock android devices

Anyway I actually have one of those devices. It was support to be a birthday present but it came with some baggage. By the time I realized it I couldn't return it

Every laptop, mobile phone, TV, smart home devices and their mothers have an unkillable backdoor. What's new?

Usually get patched and fixed ¯⁠\⁠_⁠(⁠ツ⁠)⁠_⁠/⁠¯ In this case they sell them like this and most take advantage of it.