All of us came across viruses, even the name is the most advanced and paid antiviruses. For example, such a popular virus as Wannacry literally a couple of years ago was heard by everyone and walks through the Internet, penetrating your OS through 445 port.

Close dangerous ports

The most vulnerable ports in Windows are: Port 445, 139, 137, 135. In 70-85% of cases, threats penetrate through them and it is better to close them for the security of the system.

What the ports are responsible for:

Consider one of the light ways to close the ports.

1. On launch, click PKM select "Command Stand (Administrator)"

2. Enter the commands in turn and click Enter

Netsh Advfirewall Firewall Add Rule Dir = In Action = Block Protocol = TCP LocalPort = 135 NAME = “BLOCK1_TCP-135”

Netsh Advfirewall Firewall Add Rule Dir = In Action = Block Protocol = TCP LocalPort = 137 NAME = “BLOCK1_TCP-137”

Netsh Advfirewall Firewall Add Rule Dir = In Action = Block Protocol = TCP LocalPort = 139 NAME = “BLOCK_TCP-139”

Netsh Advfirewall Firewall Add Rule Dir = In Action = Block Protocol = TCP LocalPort = 445 NAME = “BLOCK_TCP-445”

(For convenience, copy and insert into the command line through PKM-put)

3. As a result of the input, the inscription "OK" will appear, so we did everything right. After alternating commands, we reboot the computer.

Conclusion

This is one of the ways, the most simple, without firewall and third -party software. Blocking vulnerable ports will reduce risk, but will not remove the likelihood of infection with viruses. If you liked the article and helped. Please subscribe and draw knowledge in one place :)

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