Cryptomalware countermeasures subsystem The increasing spread of cryptomalware, which encrypts user data and demands a ransom for the decryption key, led to an urgent need for countermeasures, and the corresponding technology was implemented in the System Watcher. It negates the consequences of cryptoattacks by making local protected backup copies of user data files as soon as they are Kaspersky Lab Preventing emerging threats with Kaspersky System Watcher 4 October 2014 opened by suspicious program. Therefore, there is no need to decrypt any affected data — it will be replaced from the backup copies.
Protection against Screen Lockers Screen lockers are another type of ransomware, programs that try to block user access to computer functions with a supposedly immobile banner demanding a ransom. System Watcher has a built-in protection against this type of malware. In System Watcher’s settings menu there is a corresponding entry that turns this function on and sets a key combination that will close the screen locker manually. Pressing this combination will get rid of the annoying banner and delete the malware that caused its appearance. This protection against screen lockers is enabled by default