Hello all,
According to the Wireshark record my computer connects to various services often, including Amazon, Hetzner, 1337 Services GmbH, Evanzo GmbH and ThomasFamilyInvestments. The most often were the connections to mail.my-mail.rocks which is a part of Netcup GmbH. I have a somewhat minimal distro and the attached recordings were made when no app was open including no browser. I can send the other screenshots showing other connections too. I’m suspecting of malware since some time ago but can you help me clarify these connections please?
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Do you have any apps open in the foreground or background while doing the packet capture? Check with top or htop and make sure all your apps are truly closed.
Amazon, Hetzner, and the others are VPS providers among other services, so seeing connections to those by apps could be fairly normal as they often check for updates or download supporting items to make the app work.
Thank you for the informations. There were nothing in the foreground but tor was apparently running in the background. But I’m still not sure if these services were all due to Tor. I need to run another record I guess
Tor creates a ton of connections to all kinds of places, so that might have been the source.
it sounds like you’ll need a better handle on what’s running on your computer.
if this matters to you enough: you can start with pruning the systemd services that are running to remove the ones you don’t want so that you can know for certain what is supposed to be running and then run another capture to see where it’s calling out to.
Per its nature, tor is definitely going to create a lot of noise in your capture. Shut it down and try again, see if you still have so many connections.
It is highly unlikely that you have malware that you can’t see, so if you still see them after shutting down tor, use tools that tell you which app has established connections.
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I find wireshark too confusing unless you have a lot of experience with it.
It looks like you are using linux because I see Wlan0 at the top of the image
I use ss
ss --help
to see what you are connecting to
ss -x -a
ss -o state established
ss -o state established ‘( dport = :http or sport = :http )’
what processes are using open sockets
ss -pl
TCP sockets
ss -t -a
UDP sockets
ss -t -a
a deeper guide here:
https://www.cyberciti.biz/tips/linux-investigate-sockets-network-connections.html
SS is a weird name but ok.
Socket shark, maybe? The repeating 2 digit namespace is valuable enough that there was no way
sswas going unused, nazi-association be damned
Just open sudo ss -tulpn u will see all programs with opened port and u will killing disabling until u will find source of network noise
That mail/[.]my-mail/[.]rocks maps to the tor network.
https://metrics.torproject.org/rs.html#details/E3F16EEB32F9C0B28325891F7BAACA8EC212343D
so am i running a relay in the background although tor browser is closed?
If it’s like a vpn interface, it’s still running as a deamon in the background even if the browsers are closed.
Like others have said you can check what application is using each open port. You can also check running processes (ps | grep keywords) and interfaces (ip a).
Use Portmaster
This is the way
Portmaster is mandatory nowadays, like also InviZible Pro in Android
Oooooo I haven’t seen that one before, thanks!
Use bandwhich to see which programs are using traffic ;)
I will try it, thank you :)
Because you’re on the internet
Does also your computer connect to Amazon, Hetzner, 1337 Services GmbH, Evanzo GmbH and ThomasFamilyInvestments without a reason?
Everything has a reason
