What is the Crypto Locker Virus and how can PC Avoid this Malware?

What is CryptoLocker virus?

The CryptoLocker virus comes in the category of Trojan. It runs on the Microsoft windows platform and was first detected in the year 2013. It was a ransom Trojan that enters in a system different sources. One of the main sources is email and zipped attachments. The ZIP file has an exe file with an icon of a PDF file. Now, as we all know, Windows does not show the file extension. People who are professionals will definitely check the file's extension, but a person who is not so familiar with the computers will become an easy target.