Server hacked? Extrem outgoing Traffic
I have a "small" problem and I have Proxmox on a Hetzner server, with which I am currently learning everything about Debian and virtualization as a hobby.
Apparently my server has now been hacked because I have such high outgoing traffic all the time that I can hardly connect to the server.
The root password was also different, which I was able to change again thanks to the rescue system.
Unfortunately, I'm not far enough to know how to recognize where it all comes from and how to block it. That's why I thought to ask you professionals. Unfortunately, Hetzner does not offer any help.
I hope I have described my problem in enough detail. Probably the whole thing happened through outdated software.
Kind regards and thank you in advance for your tips and help.