A Minecraft server in which I am an administrator on is getting logs full of TCP messages like "GETBALLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLZZZZZZZZZZZZZZZZZZZZZ ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZHTTP10" coming from the IP 37.48.86.168

The IP resolves to update.microsoft.com.
This server has no business connecting to update.microsoft.com, as its running BSD.

Should I report this to Microsoft? If so, how?