Change log for SPLUNK

Date Changes
2024-05-01 Update the mapping for deprecated UDM field.
2023-11-29 - Aligned principal/target.hostname and principal/target.asset.hostname mapping.
- Modified logic to map security_result.action_details UDM field even if the values of action raw log field does not match the logic.
2023-05-17 Added auth.type for login events.
2023-01-04 - Handled error and changed mapping for Authentication datamodel, if user_id variable is empty then user variable will be mapped to principal.user.userid. Also, event_type is now mapped to USER_LOGIN.
- Handled unparsed log for Endpoint datamodel.
- Modified mapping for Change datamodel. The user field is mapped to target.user.user.userid, the user_name field is mapped to principal.user.user_display_name for tag change and account, the src_user field is mapped to principal.user.userid. Also, event_type is mapped to USER_UNCATEGORIZED.
- Modified mapping for the fields result and result_id in the Change datamodel to metadata.description and metadata.product_event_type.
- Changed mapping for the Network Traffic datamodel. If user_id variable is empty then the user variable is mapped to principal.user.userid.
2022-11-09 Newly created parser.