Kaspersky Data
Use the following add-on to collect data from Kaspersky.
Splunkbase Download: https://splunkbase.splunk.com/app/4656/
Installation Guide: https://splunkbase.splunk.com/app/4656/#/details
Estimated Data Size
The Kaspersky data is not large in terms of license and storage usage but it depends on the number of hosts connected in Kaspersky.