WannaCry Ransomware the biggest cyber attack

WannaCry ransomware

What is WannaCry ransomware?

On Friday, May 12, 2017, around 11 AM ET/3PM GMT, a ransomware named “WannaCry Ransomware” attack of “unprecedented level” (Europol) started spreading WannaCry around the world. It used a vulnerability in Windows that allowed it to infect victims PC’s without them taking any action.

Until May 14, 2017, the WannaCry Ransomware infection has affected over 200,000 victims in 150 countries and it keeps spreading.


What is Ransomware?

Ransomware is a type of malicious software that blocks access to user PC and its data until a ransom is paid and displays a message requesting payment to unlock it.

More advanced malware encrypts the victim’s files, making them inaccessible, and demands a ransom payment to decrypt them. Ransomware attacks are typically carried out using a Trojan that has a payload disguised as a legitimate file.


What does ransomware do?

There are different types of ransomware. However, all of them will prevent you from using your PC normally, and they will all ask you to do something before you can use your PC.

They can target any PC users, whether it’s a home computer, endpoints in an enterprise network, or servers used by a government agency or healthcare provider.

Ransomware can:

  • Prevent you from accessing Windows.
  • Encrypt files so you can’t use them.
  • Stop certain apps from running (like your web browser).

Ransomware will demand that you pay money (a “ransom”) to get access to your PC or files. We have also seen them make you complete surveys.

There is no guarantee that paying the fine or doing what the ransomware tells you will give access to your PC or files again.

Types of Ransomware

There are two types of ransomware – lockscreen ransomware and encryption ransomware.

Lockscreen ransomware shows a full-screen message that prevents you from accessing your PC or files. It says you have to pay money (a “ransom”) to get access to your PC again.

Encryption ransomware changes your files so you can’t open them. It does this by encrypting the files – see the Details for enterprises section if you’re interested in the technologies and techniques we’ve seen.

How Ransomware attack your Computer?

Ransomware can get on your PC from nearly any source that any other malware (including viruses) can come from. This includes:

  • Visiting unsafe, suspicious, or fake websites.
  • Opening emails and email attachments from people you don’t know, or that you weren’t expecting.
  • Clicking on malicious or bad links in emails, Facebook, Twitter, and other social media posts, instant messenger chats, like Skype.

How can we prevent ourselves from randsomware?

It can be very difficult to restore your PC after a ransomware attack – especially if it’s infected by encryption ransomware.

So the first step is to take all the important documents and data’s  as a backup copy in any external hard drive.This will keep as in safe side from WannaCry Ransomware or any other virus.

Keep your windows and Antivirus updated.

The other best solution to ransomware is to be safe on the Internet and with emails and online chat :

  • Don’t click on a link on a webpage, in an email, or in a chat message unless you absolutely trust the page or sender.
  • If you’re ever unsure – don’t click it!
  • Often fake emails and webpages have bad spelling, or just look unusual. Look out for strange spellings of company names (like “PayePal” instead of “PayPal”) or unusual spaces, symbols, or punctuation (like “iTunesCustomer Service” instead of “iTunes Customer Service”).

Source: compiled from online sources particularly from the below Microsoft link


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