So I contacted the the ISP provider and they confirmed me that I was hacked by WiFi although Im not sure how since the SSID was hidden.
Hiding an SSID is NOT a security feature. It just keeps the casual person from seeing your network easily. Clients still need to know the SSID and that information is passed in the clear over the air. So anyone sniffing for WiFi can easily see your SSID even though it is hidden.
I seriously doubt that a hacker in China was connecting via your WiFi.
Make sure your using, at least, WPA2 with a very good and complex key. Disable uPNP and Bonjour and reboot it. If your using a Ubiquity router make sure you disable Ubi Discovery.
By the time frame that these attacks were done Im pretty sure that It was done in another time zone. Is there any other way how they could have hacked my modem, by not actually physically being in the radius of its reach?
Or that is the only way someone could have hacked it? Because if thats the case then I even have a local, love to hack peoples wifi suspect around here!
And ok, I will try to find and disable what you have told me. After the reset so far no intrusions have been made this night and the log is clean.
Also Bitmain have answered to me and send me instructions on how to flash the controllers with their newest firmware by the means of an SD card and then they told me to upload some antivirus which they have send me as well.
Im praying that this will work for me, will start to work on all of the hacked miners today!
Thanks for the output!