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Re: Orbi connection to China
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Orbi connection to China
Hi,
I've upgraded my IPS system and it has begun to send me alerts notifying that my orbi device was connecting on port 80 to an address that seems to be in China, and it does so regularly. does anyone know why it does that ?
best regards
Message: IPS Alert 1: A Network Trojan was Detected. Signature ET MALWARE Suspicious User-Agent (1 space). From: 10.1.1.16:52320, to: 203.205.142.208:80, protocol: TCP
Message: IPS Alert 1: A Network Trojan was Detected. Signature ET MALWARE Suspicious User-Agent (1 space). From: 10.1.1.16:52230, to: 203.205.255.80:8080, protocol: TCP
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Re: Orbi connection to China
@michaelkenward wrote:
@Proton68 wrote:
I've upgraded my IPS system
What's that? Google suggests Integrated Plumbing Systems.
203.205.142.208 is Tencent.
🙂
Intrusion Prevention System
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Re: Orbi connection to China
@Proton68 wrote:
Hi,
I've upgraded my IPS system and it has begun to send me alerts notifying that my orbi device was connecting on port 80 to an address that seems to be in China, and it does so regularly. does anyone know why it does that ?
best regards
Message: IPS Alert 1: A Network Trojan was Detected. Signature ET MALWARE Suspicious User-Agent (1 space). From: 10.1.1.16:52320, to: 203.205.142.208:80, protocol: TCP
Message: IPS Alert 1: A Network Trojan was Detected. Signature ET MALWARE Suspicious User-Agent (1 space). From: 10.1.1.16:52230, to: 203.205.255.80:8080, protocol: TCP
When you use the Orbi app and you login to your Netgear account, the app creates a VPN connection from your Netgear account on the cloud to Orbi to be able to manage your Orbi from the app. I think this is what your IPS sees.
This is only needed when using the app for Orbi management but not when you use the web GUI.
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Re: Orbi connection to China
The WhoIs lookup on these IP's traces back to:
inetnum: 203.205.192.0 - 203.205.255.255 netname: TENCENT-NET-AP descr: Shenzhen Tencent Computer Systems Company Limited descr: Tencent Building, Kejizhongyi Avenue,Hi-techPark, descr: NanshanDistrict, Shenzhen country: CN
inetnum: 203.205.128.0 - 203.205.159.255 netname: TENCENT-NET-AP descr: Shenzhen Tencent Computer Systems Company Limited descr: Tencent Building, Kejizhongyi Avenue,Hi-techPark, descr: NanshanDistrict, Shenzhen country: CN
This doesn't smell like "Netgear" to me. If 10.1.1.16 is the Orbi's WAN port, you could use the debug page to capture the LAN traffic and see exactly which device on your Orbi is connecting to those IP's.
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Re: Orbi connection to China
@CrimpOn wrote:
The WhoIs lookup on these IP's traces back to:
inetnum: 203.205.192.0 - 203.205.255.255 netname: TENCENT-NET-AP descr: Shenzhen Tencent Computer Systems Company Limited descr: Tencent Building, Kejizhongyi Avenue,Hi-techPark, descr: NanshanDistrict, Shenzhen country: CN
inetnum: 203.205.128.0 - 203.205.159.255 netname: TENCENT-NET-AP descr: Shenzhen Tencent Computer Systems Company Limited descr: Tencent Building, Kejizhongyi Avenue,Hi-techPark, descr: NanshanDistrict, Shenzhen country: CN
See above.
@CrimpOn wrote:
This doesn't smell like "Netgear" to me.
Nor does it smell like the Chinese or Russian governments.
Many of these things tracks back to something else on the local network. Sometimes an IoT device. Who knows?
Don't immediately think Chinese IP address = nasty. Look under the hood for what is really going on.
This is the important bit:
...capture the LAN traffic and see exactly which device on your Orbi is connecting to those IP's.
The router's log may be helpful. But it also had a habit for finding useless and misleading information.
But first check the plumbing.
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Re: Orbi connection to China
You would figure Netgear armor would ID and take care of this 🙂 LOL!
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Re: Orbi connection to China
I had not realized that Netgear Armor was available for the Orbi product line. Everything I have seen mentions the Nighthawk line.
With our houses filling up with devices that can be controlled using smartphone apps, pretty soon we'll have dozens of open ports. In my case, nearly everything connects back to Amazon Web Services (AWS).
It would be fascinating to know which Internet Protection System you have and how it fits into the modem->router environment.
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Re: Orbi connection to China
thanks for the suggestion, will try to do that ! 🙂
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Re: Orbi connection to China
Personally I would be concerned and not about Orbi. Tencent is the largest social gaming company on earth and also has an instant messaging service. Port 80 traffic to tencent could be worm or trojan utilizing one of your devices to try to hook up for fraudulent purposes.
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Re: Orbi connection to China
Once the connection is traced to a specific device, the next step may be to determine which app on that device is opening the connection.
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Re: Orbi connection to China
@CrimpOn wrote:
Once the connection is traced to a specific device, the next step may be to determine which app on that device is opening the connection.
To help to home in on this excellent suggestion, in the past there have been references to devices like IoT cameras and other cloud connected widgets. They make a lot of those in China!
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Re: Orbi connection to China
I don't know if it matters whether the Orbi is in "router" or "AP" mode (my Orbi is in router), but @ekhalil showed me how to display all the "open ports".
Browse to the Orbi debug page, usually 192.168.1.1/debug.htm
Check the box "Enable Telnet"
User your favorite telnet application to telnet to the Orbi and log in with the same "admin" and password
Enter the command cat /proc/net ip_conntrack
It is sort of tedious to locate the IP you want in the telnet window, so I save the telnet session to a file and use a text editor to find what I want, sort the entries, etc. Every time I used the Windows telnet client, I would forget to save the session to a file, so I changed over to Putty and created a script that always saves the session to a unique text file.
After closing the telnet session, remember to go back to the debug page and turn off telnet access.
Once the device which has opened that IP connection has been located, I believe there are similar commands to display which application has the port open.
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Re: Orbi connection to China
This should be an option to "Log Open Ports" for debugging.
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Re: Orbi connection to China
@CrimpOn wrote:
......
Enter the command cat /proc/net ip_conntrack
......
Thanks @CrimpOn . Yes, the ip_conntrack table is a good way to find which devices connected to a specific destination.
Please note that that the ip_conntrack table contains historical information, so this table remembers recent connections for some time after they expire.
On the other hand the netstat command shows only real-time information and does not have any historical information.
That's why you will notice that the number of connections in the ip_conntrack table are more than what in netstat.
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