Skip to main content

WannaCry Ransomware Cyber Attack : How to Protect Your Systems from WannaCry Ransomware Attack

WannaCry virus targets the Microsoft Windows operating system on 12th May and infects more than 2,50,000 computers in 150 countries and demanding ransom payments in the cryptocurrency bitcoin in 28 languages. This was one the largest ever cyber attack in the world. WannaCry or WannaCrypt or Wanna Decryptor is a ransomware programme that targets only Microsoft Windows operating system. This ransomware virus WannaCry locks / encrypts files on a computer and demands payments $300 to $600 to unlock the system.

This ransomware spreads by using a vulnerability in implementations of Server Message Block (SMB) in Windows systems. This exploit is named as EternalBlue and this particular malware known as WannaCry was called "unprecedented" by Europol. When your computer is attacked by WannaCry, you will get the below screen which demand payment to decrypt or unlock your computer. Before WannaCry reach your computer you must take some precaution to secure your computer. Read also : Quick Heal total security antivirus for Windows Computer.


How to Protect Your Computer from WannaCry?

There is some guidelines to protect your computer from WannaCry. Below is the crucial steps to protect your systems from WannaCry virus.

  • Since WannaCry targets Microsoft Windows operating system, users are advised to update the Microsoft security patch for this particular flaw with the latest one as mentioned in Microsoft Security Bulletin MS17-010. Go to  the Microsoft's official website with the link  https://technet.microsoft.com/library/security/MS17-010 and download the security patches according to your operating systems.
  • Block / disable SMB Ports on your computer
  • Disable NetBIOS on your computer.
  • Always take backup of your important files so that you can restore the data if your attacked.
  • Make sure your antivirus is up-to date and scan your system for any malicious programs on daily basis. At least use trial version anti virus in your computer.
  • Check for your Windows update regularly and update the computer when it is available for update.
  • Turn on your Windows firewall setting.
  • Do not click any attached file or links that comes to your email till your are not confirm.
  • Do not download any attached file that comes to your email till you are not confirm.
  • Do not download any files / software from an untrusted sites.
  • Follow strict policy for external devices such as pendrive or external hard disk.Do not open any pendrive or external device without scanning.
  • Enable file extensions in your windows so that you can detect what type of file you are going to use. Otherwise you may be trapped by file icon also.
  • Disable remote Desktop Connections, employ least-privileged accounts.
  • Follow safe practices when browsing the web. Ensure the web browsers are secured enough with appropriate content controls.

All the above options are extremely advised to protect your computers from WannaCry ransomware cyber attack. Read also : How to setup page level AdSense ad.

How Block / Disable SMB Ports

Microsoft support page guide you to enable / disable SMB (Server Message Block) ports. Visit https://support.microsoft.com/en-us/help/2696547 to get all the commands for Microsoft Operating System.

To to enable or disable SMB protocols on the Windows Vista, Windows Server 2008, Windows 7, Windows Server 2008 R2, Windows 8, and Windows Server 2012 follow the below steps to run the following commands.

To disable SMBv1 on the SMB client, run the following commands :

1. sc.exe config lanmanworkstation depend= bowser/mrxsmb20/nsi
2. sc.exe config mrxsmb10 start= disabled

To disable SMBv2 and SMBv3 on the SMB client, run the following commands :

1. sc.exe config lanmanworkstation depend= bowser/mrxsmb10/nsi
2. sc.exe config mrxsmb20 start= disabled


Block TCP Port 139 and 445 and and UDP Port 137 and 138 for Extra Security

Blocking TCP Port 139 and 445 and UDP Port 137 and 138 could also help you to stop WannaCry to infect your computer. To disable TCP Port 139 and 445 and UDP Port 137 and 138 do the below steps.

Step 1. click Start button and type firewall.cpl in the search programs and files.

Step 2. Right click on firewall.cpl and select Run as Administrator


Step 3. After that click Advanced Settings 


Step 4. Now select Inbound Rule.. in the left side pane and then click New Rule in the right side pane.


Step 5. Now click Port and then click Next


Step 6. Choose either TCP or UDP and then enter the port number in the against Specific local ports and then click Next. For TCP enter port number 139 and 445 and for UDP enter port number 137 and 138. Read also : How to decorate text with shadow effects.


Step 7. Now click Block the connection and then click Next twice


 
Step 8. Finally, type the name and then click Finish.



How to Disable NetBIOS

To disable NetBIOS over TCP/IP follow the below steps.

Step 1. Go to Control Panel and then open Network and Sharing Center.

Step 2. Click Local Area Connection

Step 3. Now click Properties

Step 4. Select Internet Protocol Version 4 (TCP/IPv4) and then click Properties

Step 5. Now click Advanced..

Step 6. Now you will find three tabs namely IP Settings, DNS and WINS. You need to click WINS and then click Disable NetBIOS over TCP/IP. Read also : How to add AdSense ad inside blog post.


Step 7. After that click OK > OK > Close > Close

How to Enable File Extension

File extension helps you to identify the file type of any file / document and also help you to open an unwanted file. There are many ways to enable file extension. I am just showing you one of it. To enable file extension just perform the below steps.

Step 1. Open My Computer in your Windows 7

Step 2. Click Organize in the top left corner and then select Folder and search options

Step 3. Now click View tab and uncheck Hide extensions for known file types


Step 4. Finally, click Apply and then click OK.

Disable USB Device Auto Open

Disabling USB device auto run / auto open also protect your computer from viruses. You can stop auto open USB device just pressing Shift key on the keyboard after inserting USB device in the USB port. To disable all media and device to auto open in Windows 7 and Windows 8 follow the below steps. Read also : How to make money online from home without investment.

Step 1. Go to Control Panel and click Hardware and Sound.

Step 2. Now click AutoPlay and then uncheck Use AutoPlay for all media and devices.

Step 3. After that click Save button to change the settings.


Once you perform the above all the steps your computer will be protected from WannaCry ransomware virus. Feel free to share this post on social network and also don't forget to subscribe this blog.



Recommended Post
Big on Hosting. Unlimited Space & Unlimited Bandwidth

Comments

Popular posts from this blog

How To Change Default File Download Path in UC Browser

All of us known that UC browser is the most popular, fast and less data consuming mobile browser for android devices. Many of us use UC browser on daily basis on our smart phones. By default UC browser has download path to internal memory device which is /storage/sdcard0/download. sdcard0 is the built in memory or internal memory of your device. Read also : How to fix HTTP and HTTPS Mixed Content Errors.

Do you know that this default download path can be changed? Since, internal memory is fixed, and once you exceed this value you can't download more. You need to move some data from mobile memory to the external memory which is sdcard1. If you change this default path to external memory card (sdcard1), you can download more data directly to your desired directory. Read also : How to Setup AdSense Page Level Ads and Fix Script Error.

Here, I will show you, how to change this default download path from internal memory card sdcard0 to external memory card sdcard1. To do so you need to…

How To Rename A WhatsApp Group

We all know that WhatsApp is the most popular messaging service for Android, BlackBerry, iPhone and for other platforms. In this post, I will show you how to rename an existing WhatsApp group. To rename an existing WhatsApp group your smartphone must have internet connection. After that you need to follow the below steps. Read also : How to track lost/stolen mobile phone and erase data remotely.


Step 1. Open WhatsApp application on your smartphone.

Step 2. After that you need to click CHATS tab and click on your group name.



Step 3. Once you click on your group name, you will able to see chat details. Now you need to click vertical dots located extremely top right corner and then click Group info. Read also : How to setup AdSense page level ads.


Step 4. Now you can easily rename your group. To rename the group just click Edit icon and then type the desired group name and click OK. Read also : How to protect your computer from WannaCry ransomware virus.


In this way you can rename a What…

Calculation of Total Marks, Percentage, Division, Remarks, Maximum & Minimum Number of Students in MS Excel

In this post, I will help you to learn how to calculate total marks, percentage, division, maximum number, minimum number and remarks of students of a class very fast. At first you need to look over the above image very carefully. The above image shows the marks obtained by six students of a class.

Formula to calculate Total Marks of all students within seconds 

First you need to find out the Total Mark of a single student who is on the top of the list i.e, Mani. To calculate Total Mark of Mani, click on the Total Mark cell address of Mani i.e, H6 and then type the formula =sum(1st subject's cell address i.e, b6:last subject's cell address i.e, g6) and then press Enter on the keyboard or click anywhere on the worksheet. Here b6 and g6 are cell address of 1st subject (English) and last subject (Biology) of that student. Read also : How to Enable HTTPS for Blogger Blog.

After getting results, click on the resultant cell address of Total Mark of the 1st student i.e., Mani an…

Change UC Browser Default Homepage in Android Phones

We all know that Android OS operated Smartphones and Tablets are great for web browsing. Like other browsers, uc browser has a default search engine Yahoo is set for web search. UC browser provides different kind of search facilities under 5 different categories namely Web, Video, Shop, Image and APP. Read also : How to protect your computer from WannaCry ransomware virus.

In this post, I will show you how to change the default search engines of uc browser in Android devices for their 5 different categories. To do so you just need to follow the below steps. Read also : How to Enable HTTPS for Blogger Blog.

Change Default Homepage for UC Web search

Step 1. At first you need to open UC browser
Step 2. After that click Search. Follow the below image.


Step 3. Once you click Search, you will able to see the default search engine's icon for Web search like y for Yahoo, g for Google. Now you need to click that search icon. Follow the below image. Read also : How to change UC browser defaul…

Enable Auto Save Forms & Passwords in UC Browser

Many of you use UC browser on daily basis on your smart phone but very less enable this feature. Enabling auto save forms and passwords allows the browser to remember the username and passwords. It gives you relief from entering username & password every time whenever you login to your email. Did you enable auto saving form & password? If not, then do it now. Read also : How to track lost/stolen mobile phone and erase data remotely.

In this post, I will show you how to enable auto save forms & password in UC browser in your Android phones. To do so you need to follow the below steps.

Steps to enable auto save forms and passwords

Step 1. At first open UC browser

Step 2. In the second step, tap on the horizontal bar.


On the next image, you will able to see Bookmarks, History, Refresh etc. icons. Now swipe this menu screen to the left and tap Settings. Read also : How to create custom AdSense Search Engine and make money from it.


Step 3.  Now on the Browser Settings, you w…

Set UC Bowser as Default Browser in Android Device

UC browser is the most popular and free mobile browser for android phones developed by UCWeb also known as UC Mobile. UC browser becomes most popular among mobile internet users because of its less consuming data than any other mobile browser. It can be downloaded from UCWeb or Google Play Store. Read also : How to protect your computer from WannaCry ransomware virus.

In this post, I will show you how to set UC browser as default browser in your Android phones. To do so you need to follow the below steps.

Steps to set UC browser as default browser

Step 1. At first open UC browser.

Step 2. In the second step, tap the horizontal bar. Read also : How to make money online from home.


On the next image, you will able to see Bookmarks, History, Refresh etc. icons. Now swipe this menu screen to the left and tap Settings. Read also : How to transfer large files without mobile data.


Step 3. Now you will able to see the option Set as Default Browser which is inactive.



Step 4. Now you need to t…

How To Delete / Deactivate / Reactivate a Pinterest Account

Pinterest is one of the best social network since it allows users to create boards and also to update boards with images. But what if you want to delete your pinterest account? Pinterest allows users to delete their accounts permanently or deactivate their accounts so that whenever a user like to come back easily can reactivate his/her account. So be sure what do you want? Read also : How to Setup AdSense Page Level Ads and Fix Script Error.

Do you want to delete your account permanently or deactivate your account? Keep in mind that by deactivating your Pinterest account, your profile and boards will not be visible on Pinterest also your twitter and facebook profiles will be unliked, if you had connected them earlier.

Steps to Delete/Deactivate Pinterest Account

Step 1: At first log in to your Pinterest account with your user name and password. Read also : How to Setup AdSense Page Level Ads and Fix Script Error.

Step 2: Click on your username locating right side at the top of the ho…