This is linked to your internet connection.
This is linked to your internet connection.
I don't have enough information to determine whether it's an independent system or connected to a home computer.
I would shut down all connected machines. Allow some time for the router to refresh its client list, then try logging in with a mobile phone—even though phones can be compromised, it’s unlikely. If the issue persists, someone might have discovered your Wi-Fi password, the router could be infected, or a specific wireless device on your network is responsible. The MAC address indicates Wi-Fi activity. This suggests the router was breached, the password was exposed, or a wireless device is the problem. I’d attempt a few steps: try changing the Wi-Fi password and restart the router. If the MAC address disappears immediately after assigning a new password to your wireless clients, that device is likely the culprit.
The MAC address search results seem unrelated to virus information, likely due to a coincidence. Using a standard search engine won't provide useful details from a MAC address. Manufacturers assign the first six digits of a MAC (OUI) to specific brands. For example, DeepMac offers a lookup at their site: http://search.deepmac.org/search.php?dat...results=50. This indicates the device is likely from Netgear.