This ransomware does not encrypt files on the victim's machine. It locks the entire screen and does not permit the victim to do anything else till he pays the ransom. ScreenLocker is normally downloaded from exploit kits, mostly in the recent past.

The following is a list of some of the popular ScreenLocker ransomware:

• Reveton
• Urausy
• Kovter
• Tobfy
• Weelsof
• BlueScreen
• Koktrom
• Winlock
• LockScreen

Details about some of these families will be covered in later chapters.