Change log for SYMANTEC_DLP

Date Changes
2026-01-22 Enhancement:
- event.idm.read_only_udm.additional.fields: Newly mapped incident_snap raw log field to event.idm.read_only_udm.additional.fields.
- event.idm.read_only_udm.target.hostname: Newly mapped dst raw log field to event.idm.read_only_udm.target.hostname.
- event.idm.read_only_udm.target.asset.hostname: Newly mapped dst raw log field to event.idm.read_only_udm.target.asset.hostname.
- Modified grok patterns to handle Severity format variations.
- Refactored parser logic for recipient and sender email addresses to support from= prefix and enforce length constraints.
2025-08-21 Enhancement:
- Renamed from policy_rule field to subject in the grok pattern because it maps to a subject field, not a rule_name field.
- event.idm.read_only_udm.security_result.rule_name: Removed mapping of policy_rule from event.idm.read_only_udm.security_result.rule_name UDM field.
event.idm.read_only_udm.network.email.subject: Mapped subject raw log field with event.idm.read_only_udm.network.email.subject UDM field.
- event.idm.read_only_udm.metadata.event_type: If the event_type is SCAN_NETWORK, updated to EMAIL_TRANSACTION.
2025-07-22 Enhancement:
- Added a grok pattern to parse the log.
- event.idm.read_only_udm.security_result.rule_id: Newly mapped policies raw log field to event.idm.read_only_udm.security_result.rule_id.
- event.idm.read_only_udm.security_result.rule_name: Newly mapped rule raw log field to event.idm.read_only_udm.security_result.rule_name.
- event.idm.read_only_udm.security_result.rule_name: Removed mapping of asunto raw log field from event.idm.read_only_udm.security_result.rule_name as asunto represents the email subject, not the rule name.
- event.idm.read_only_udm.network.email.subject: Mapped asunto raw log field to event.idm.read_only_udm.network.email.subject.
2025-07-10 Enhancement:
- event.idm.read_only_udm.metadata.event_timestamp: Newly mapped end raw log field with event.idm.read_only_udm.metadata.event_timestamp UDM field.
- Added a separate date filter for timestamp which do not have year and updated rebase to true.
- Added a grok pattern for dhost and temp_dhost to validate the hostname.
- Added N/A with null check for fname before mapping it with event.idm.read_only_udm.additional.fields UDM field.
- event.idm.read_only_udm.network.session_duration.seconds: Newly mapped cnt raw log field with event.idm.read_only_udm.network.session_duration.seconds UDM field.
- event.idm.read_only_udm.security_result.detection_fields: Newly mapped resolution raw log field with event.idm.read_only_udm.security_result.detection_fields UDM field.
- event.idm.read_only_udm.network.http.referral_url : Added a check to ensure if dhost is a URL before mapping it with event.idm.read_only_udm.network.http.referral_url UDM field.
- event.idm.read_only_udm.target.user.email_addresses: Newly mapped dhost raw log field with event.idm.read_only_udm.target.user.email_addresses UDM field when it contains email .
- Added a grok pattern for dhost to extract hostname from URL.
2025-06-05 Enhancement:
- Added Grok to handle the occurredOn field properly.
2025-05-15 Enhancement:
- Added support to handle the occurredOn field properly.
- event.idm.read_only_udm.security_result.verdict.response_count : Newly Mapped Total Count raw log field to event.idm.read_only_udm.security_result.verdict.response_count UDM field.
2025-02-04 Enhancement:
- Added support for SYSLOG logs.
2025-01-08 Enhancement:
- Mapped ATTACHMENT_FILENAME to principal.file.full_path.
- When DATAOWNER_NAME is present, then mapped DATAOWNER_NAME to principal.user.userid.
- When DATAOWNER_NAME is not present, then mapped ENDPOINT_USERNAME to principal.user.userid.
2024-12-27 Enhancement:
- Added support to parse the new log format.
2024-12-04 Enhancement:
- Added support to parse the new log format.
2024-11-11 Enhancement:
- Added support to parse the new log format.
2024-09-05 Enhancement:
- Added support to parse the new log format.
2024-06-17 Enhancement:
- Added support to parse the new format of field recipients.
2024-06-14 Enhancement:
- Added support for CEF Logs.
2024-05-16 Enhancement:
- Mapped dlp_type to security_result.detection_fields.
2024-04-26 Bug-Fix:
- Mapped recipients to target.user.email_addresses.
2024-03-10 Enhancement:
- Added new Grok patterns to parse logs of new SYSLOG formats.
- Mapped server to target.application.
- Mapped url to target.url.
- Mapped dataowner_mail to principal.user.email_addresses.
- Mapped reported_on and monitor_name to additional.fields.
- Mapped sender to network.email.from.
- Mapped subject to network.email.subject.
2024-02-20 Enhancement:
- Mapped blocked to security_result.action_details and security_result.action.
2024-01-12 Enhancement:
- Mapped incident_id and DLP_EP_Incident_ID to security_result.detection_fields.
- Added a Grok pattern to parse logs of new SYSLOG formats.
- Mapped location to principal.resource.attribute.labels.
- Mapped target_type to target.resource.attribute.labels.
2023-12-06 Enhancement:
- Added a Grok pattern to parse logs of new formats.
- Mapped application to principal.application.
- Mapped application_name to target.application.
- Mapped policy_name to security_result.detection_fields.
2023-09-02 Enhancement:
- Added support to parse failing logs and mapped the fields accordingly.
2023-08-17 Enhancement:
- Mapped Occurred on to principal.labels.
- When act is Modified, set security_result.action to ALLOW_WITH_MODIFICATION.
- Mapped status to principal.labels.