Port 445 is a port with mixed reputation. Together with 139 port, it is the main channel for IPC$ intrusion. With it, we can easily access all kinds of * * * folders or * * * printers in the local area network, but it is precisely because of it that hackers have an opportunity, they can secretly * * * enjoy your hard disk through this port, and even format your hard disk silently!

You can turn it off.

Modify the registry and add a key value.

Configuration unit: HKEY _ Local _ Machine

key:System \ current control set \ Services \ NetBT \ Parameters

Name: SMBDeviceEnabled

Type: REG_DWORD

Value: 0

After the modification, restart the machine and run "netstat -an". You will find that your port 445 is no longer listening.