Ramsomware has become a large presence on the net. The Locky virus is another example of the new ransomware that has no way to circumvent the encryption. If you want to effectively defend against this, your best defense is to have a back up of your OS & files. Your Anti Virus might stop the ransomware, but there's also a chance it won't.
Windows has a built in program to make a system image. Or you can use another program of your choice. But not having a back up when this strikes means either loosing your files or paying up & hoping that you do receive the decryption key. Be smart & make a back up before it happens to your PC/Laptop.
Please note that for your back up to have the best protection, it should be kept on an external HDD that is not normally connected to the computer at all times. The newer variants of this ransomware will seek out any/all disks, back ups & corrupt them.
TeslaCrypt ransomware now impossible to crack, researchers say | PCWorldThe latest version of the TeslaCrypt ransomware has tidied up a weakness in previous versions that in some cases allowed victims to recover their files without paying a ransom.
Cisco’s Talos research group found that TeslaCrypt 3.0.1 has improved its implementation of a cryptographic algorithm making it impossible now to decrypt files.
“We can not say it loud and often enough, ransomware has become the black plague of the internet,” wrote Andrea Allievi and Holger Unterbrink, both security researchers with Cisco, in a blog post on Wednesday. “The adversaries are modifying and improving it in every version.”
Weaknesses in versions of TeslaCrypt allowed researchers to create tools including TeslaCrack, Tesladecrypt and TeslaDecoder for people to decrypt their files without paying a ransom.
That encryption weakness has now been closed.
Free tools for making backups of your system.
Five free tools for managing partitions - TechRepublic
System Image - Create in Windows 10 - Windows 10 ForumsA system image is an exact copy of a drive or partition which can be used to restore your PC to the state it was in at the time the image was made. By default, a system image only includes the drives that Windows requires to run, including Windows 10 itself, your system settings, programs, and files. You may also include any other drive in the image if you wish. When you restore your computer from a system image it is a complete restoration, you cannot choose individual items to restore and all of your current programs, system settings, and files are replaced with the contents of the system image.
This tutorial will show you how to create a system image backup in Windows 10 to be able to use to restore the contents of your computer back to the state it was in when the system image was created if your hard drive fails or your computer ever encounters problems.