The Internet threat alert status is currently normal. At present, no major epidemics or other serious incidents have been recorded by Kaspersky Lab’s monitoring service. Internet threat level: 1


Synonyms: Registry key, System registry key

In Microsoft® Windows®, registry keys are used to store configuration information: the value of a relevant key is changed every time a program is installed or when its configuration settings have been modified.

Many malicious programs change key values, or create new ones, to ensure that their code runs automatically: in addition, they can have an adverse effect on legitimate programs.

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The term kernel refers to the core of an operating system that supports all other operations. By contrast, the term shell is used to describe the user interface.


A kilobyte [KB] is a unit of measurement for computer storage and is equivalent to 1,024 bytes.


Synonyms: Keystroke logger

A keylogger can be used by a third-party to obtain confidential data (login details, passwords, credit card numbers, PINs, etc.) by intercepting key presses. Backdoor Trojans typically come with a built-in keylogger; and the confidential data is relayed to a remote hacker to be used to make money illegally or gain unauthorized access to a network or other company resource.

Kaspersky Security Network (KSN)

Kaspersky Security Network (KSN) is a complex distributed infrastructure dedicated to processing depersonalized cybersecurity-related data streams from millions of voluntary participants around the world. It delivers Kaspersky Lab’s security intelligent to every partner or customer who is connected to the Internet, ensuring the quickest reaction times and maintaining the highest level of protection.