Strange records in log when enabled SSTP VPN

Hi,
I have enabled and configured SSTP VPN.

  • I can connect to VPN network without issue, but I have noticed strange records in Mikrotik log about attempts to connect.
  • I’m not making these connections.

Are these done by some attacker from outside?

  • Or are these connections some SSL traffic evaluated as SSTP VPN tunnel? Can this be avoided?

My device is MikroTik RB750GL.
log.jpg

Someone scanning for HTTPS probably.