There are many ports opened by system on one Windows 8 computer:
PORT STATE SERVICE VERSION 135/tcp open msrpc Microsoft Windows RPC 139/tcp open netbios-ssn Microsoft Windows netbios-ssn 445/tcp open microsoft-ds Microsoft Windows 7 - 10 microsoft-ds (workgroup: WorkGroup) 49152/tcp open unknown 49153/tcp open unknown 49154/tcp open unknown 49155/tcp open unknown 49156/tcp open unknown 49157/tcp open unknown
unknown ports are opened by system programs like
I think these ports should not be opened, since that:
- This computer has not be set to be visited remotely.
- I scanned another Windows 8 computer recently, in my memory there are no or very few open ports.
Is this normal? Are the system files modified?