Kaspersky app uses anti-virus databases when searching for malware. The app's anti-virus databases contain descriptions of malware currently known to Kaspersky, information on how to neutralize it, and descriptions of other malicious objects.
To update the app's anti-virus databases, your device must be connected to the internet.
To start an update of anti-virus databases on the device:
On the main screen of Kaspersky app, tap All features.
Swipe up and tap Update antivirus databases.
If you have a subscription for Kaspersky app, you can set a schedule for anti-virus database autoupdates.