Question

Hui Zhou Gaoshengda Technology Co.,LTD in my Network

Jun 4, 2019 10:15AM PDT

Today I set up a ASUS RT-AC58U router, and added NordVPN to the Modem using OPENVPN (in router settings). I downloaded the app provided by ASUS to monitor my network traffic. I was shocked to see the following company „Hui Zhou Gaoshengda Technology“ as part of my network. I have no idea how did they join it, and what does it mean. I blacklisted the device from my device connection.

Wondering if any of you had similar experience with ASUS & NordVPN. Is it a security flaw? Any suggestion would be really helpful.

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Answer
Of you have some SmartHome, IoT or solar panels.
Jun 4, 2019 10:21AM PDT

I can't guess what all is on your network but the HZGTC LTD company you mention makes a lot of things including a WiFi module you might find in solar panel management, IoT or any number of WiFi enabled devices.

This does not mean there is a security issue yet. It only means you may learn more about your WiFi devices.

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No smart home or solar panel
Jun 4, 2019 10:28AM PDT

Hi, no I do not have any smart home device or solar panel at my home. When my wifi network is password protected I believe no device should be able to join it without me personally putting the password. Would be interesting to know if anyone else had similar experience.

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Yes to last question.
Jun 4, 2019 10:55AM PDT

These modules are in so many devices that there is no way I can possibly guess which is it today.

There is a second issue here. I completed a call and the owner was upset that a device was showing in their WiFi hot spot lists. That is NOT A SECURITY BREACH as any device can announce itself.

They were adamant that they wanted it removed from the list which is only possible by turning off the power to the device.

So let's cover the only way a device can add itself without a password. That's the button on some routers to connect. Just disable that then change the password.

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Answer
For me it was a Smart TV.
Jul 14, 2019 2:00AM PDT

I found it to be a RCA Roku smart TV. (this was for my case)

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roku
Aug 31, 2019 8:13AM PDT

thank you it was my roku too.

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An 'Element Smart TV' with chromecast built in....
Nov 29, 2019 6:29AM PST

It seems to me that there is a common theme here, without knowing if the manufacturer(s) of these 'smart TV's are intentionally creating a wide-spread security risks (by easily connecting to private networks all over) or the actual computer part fabricator(s) are the ones to watch for, I believe the most important lesson I am going to be receiving today (outside of the quick fix) is technology is truly becoming a nuisance and dangerous to own.

Although these 'Smart' devices are easily acquired and convenient to use, I haven't seen the actual question put out there yet, so here it is...

Is there a way to re-program these devices with common software available today, like a simplistic dos or open source solution to keep the functionality of the equipment as it is intended to be used? Also, are the more technically savvy people in our community looking at the 'smart' devices in a different light? With the possibilities of potential SECURITY vulnerabilities being so prevalent?

I would be most interested to become part of that potential research. Thank you for letting me ask my questions and for the potential answers.

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Reprogramming Smart TVs.
Nov 29, 2019 10:04AM PST

So far no with the exception of some Linux based TVs that I don't see on the market.

If you feel these are security problems you can turn off the Smart part and use it like a TV.

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Answer
Change Your Wifi Password
Jul 17, 2019 1:32PM PDT

Change your Wifi password to block out any network that may have possibly gained access to your ASUS router. Also, note that Wifi routers can detect nearby networks that do not have access to your router but have SSIDs broadcasted. IoT devices often have their own wireless network. If other devices cannot access your router and network, they should not pose a threat to your network. Your Wifi network's name is also seen by routers nearby your router, too. Likely, the network name you noticed is from some nearby device.

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E-reader?
Jul 19, 2019 5:40AM PDT

In our case I just had the same thing pop up but then realized my son was downloading books on his kobo at the time and that is what the device was. Good luck!

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This is a TCL TV
Aug 19, 2019 7:50PM PDT

Do you have a TCL Roku TV?
Hui Zhou Gaoshengda Technology Co.,LTD Is TCL.

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Answer
unexpected suspect
Jun 14, 2020 2:26AM PDT

Guess what: I had the same issue and couldn't find the source either.
However, there is one device that I didn't think off: my KOBO e-reader!
The MAC address matches with the unknown device. After a long search, the issue is solved (for me at least).

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