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How to protect against the WannaCrypt attack

--Tuesday, 16 May 2017

Friday, one of the largest extortion virus cyber attacks swept the globe. This kind of blackmail virus called WannaCry (and its variants), a large number of organizations around the world suffered its attack. The victim computer will be locked by hackers, suggesting that the value of 300 dollars of the Bitcoin can be unlocked.

protect against wannacrypt

The temporary solution is to open the system firewall, and then use the Windows firewall advanced settings to prevent the connection to the 445 port (the operation will affect the use of 445 port services), the specific operation process is as follows:

protect against the WannaCrypt attack for Windows 7 / Windows 8 / Windows 10

Step 1. Open the Control Panel >> "System and Security" >> "Windows Firewall".

Open the Control Panel

 Windows Firewall

Step 2. Click "Turn Windows Firewall on or off" and enable the firewall, then click OK.

Turn Windows Firewall on or off

Step 3. Click the "Advanced Settings"

Advanced Settings

Step 4. Click "Inbound Rules" - "New Rules"

Inbound Rules

Step 5. In the open dialog box, click "Port" - "Next".

Click Port

Step 6. Click "Specific local ports" and type "445" - next.

Specific local ports

Step 7. Click "Block the connection" - "Next".

Block the connection

Step 8. Click "Profile", all select "Doname", "Private", "Public".

Profile Doname Private Public

Step 9. The name can be customized, and then click "Finish".

Finish port 445

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