File Threat Protection. The File Threat Protection component lets you prevent infection of the file system of the computer. By default, the File Threat Protection component starts together with the app, continuously resides in the computer's RAM, and scans files that are opened or run on the computer and on its attached drives to find viruses and other potential threats.
Web Threat Protection. The Web Threat Protection component protects incoming and outgoing data that is sent to and from the computer over the HTTP and FTP protocols and checks URLs against the list of malicious or phishing web addresses. The Web Threat Protection component intercepts every web page or file that is accessed by the user or an application via the HTTP or FTP protocol and analyzes them for viruses and other threats. If the page or file is found not to contain malicious code, the user gains immediate access to them.If a user accesses a web page or file that contains malicious code, the application performs the action that is specified in the Web Threat Protection component settings.
Mail Threat Protection. The Mail Threat Protection component scans incoming and outgoing email messages for viruses and other threats. It starts together with the app, continuously remains active in computer memory, and scans all messages that are sent or received via the POP3, SMTP, IMAP, MAPI, and NNTP protocols. If no threats are detected in the email message, it becomes available and/or is processed.
Network Threat Protection. The Network Threat Protection component scans inbound network traffic for activity that is typical of network attacks. Upon detecting an attempted network attack that targets your computer, the app blocks network activity from the attacking computer.
AMSI Protection Provider is intended to support Antimalware Scan Interface from Microsoft. Antimalware Scan Interface (AMSI) allows a third-party application with AMSI support to send objects (for example, PowerShell scripts) to Kaspersky Endpoint Security for additional scan and to receive scan results for these objects. For details on AMSI refer to Microsoft documentation.