Don’t Scare of WannaCrypt

Recently, a type of ransomware known as WannaCrypt which could spread over network like worm affect millions of computers worldwide. Ransomware is type of malware that encrypt files in a system and ask user to pay so they give them key to unencrypt files and making payment doesn’t necessary grand you the key to unencrypt files. Therefore, it is best not to make any payment and instead, invest more time to protect yourself. Normally, ransomwares come through a file or with a virus where user have to click on the file to or run infected program for ransomware to run and it only infect the affected PC and no other PCs in network. However, WannaCrypt is different, it infect the PC and try spread over network like worm and infect other PCs in the network. In this case, it could encrypt all PCs in a company or organization and this is why it becomes great concern. It uses vulnerability in Microsoft Server Message Block 1.0 (SMBv1) server which has been fixed on March to spread over network. To put this simple, if you already updated your Windows, it won’t be able to spread over network and in general you should install update related to Microsoft Security Bulletin MS17-010. In other world, Microsoft already protected you , before this worm infected the world, but because many users and IT professionals still won’t take Windows Update seriously, it manage to affect the world. In addition, majority of Anti-Malware vendors already released update to protect users against this ransomware and if you are using any of Microsoft Anti-Malware products such as Windows Defender, Microsoft Security Essentials, System Center Endpoint Protection, Windows Intune Endpoint Protection, Microsoft Forefront , you will be protected, if you update your Anti-Malware and in Microsoft Anti-Malware signature, it is known as Ransom:Win32/WannaCrypt .

In conclusion, to protect yourself against this WannaCrypt and other ransomwares, you need to update your Windows and update your Anti-Malware product and in general, you should connect to internet and check for update. Microsoft also released Customer Guidance for WannaCrypt attacks. If you are worried about WannaCrypt, you need to do three things: Update (Windows), Update (Anti-Malware), Update (Other Programs).

 

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