Change log for QNAP_NAS

Date	Changes
2025-12-11	Enhancement: - Modified grok patterns to support additional log structures. - event.idm.read_only_udm.principal.hostname and event.idm.read_only_udm.principal.asset.hostname: Newly mapped `sourceHost` raw log field to `event.idm.read_only_udm.principal.hostname` and `event.idm.read_only_udm.principal.asset.hostname`. - event.idm.read_only_udm.metadata.product_version: Newly mapped `productVersion` raw log field to `event.idm.read_only_udm.metadata.product_version`. - event.idm.read_only_udm.additional.fields: Newly mapped `originator`, `policy_name`, `db_tag`, `loguid`, `originsicname`, `sequencenum`, `version`, `layer_name`, `context_num`, `hll_key`, `inzone`, `sig_id`, `outzone`, `service_id`, `match_id`, `layer_uuid`, `flags`, `conn_direction`, `analyzedBy`, `maxMatches`, `loginName`, `ifname`, `sub` raw log fields to `event.idm.read_only_udm.additional.fields`. - event.idm.read_only_udm.principal.ip and event.idm.read_only_udm.principal.asset.ip: Newly mapped `src` raw log field to `event.idm.read_only_udm.principal.ip` and `event.idm.read_only_udm.principal.asset.ip` when `src` is an IP address. - event.idm.read_only_udm.principal.hostname and event.idm.read_only_udm.principal.asset.hostname: Newly mapped `src` raw log field to `event.idm.read_only_udm.principal.hostname` and `event.idm.read_only_udm.principal.asset.hostname` when `src` is not an IP address. - event.idm.read_only_udm.target.ip and event.idm.read_only_udm.target.asset.ip: Newly mapped `dst` raw log field to `event.idm.read_only_udm.target.ip` and `event.idm.read_only_udm.target.asset.ip` when `dst` is an IP address. - event.idm.read_only_udm.target.hostname and event.idm.read_only_udm.target.asset.hostname: Newly mapped `dst` raw log field to `event.idm.read_only_udm.target.hostname` and `event.idm.read_only_udm.target.asset.hostname` when `dst` is not an IP address. - event.idm.read_only_udm.principal.port: Newly mapped `s_port` raw log field to `event.idm.read_only_udm.principal.port`. - event.idm.read_only_udm.principal.nat_ip: Newly mapped `xlatesrc` raw log field to `event.idm.read_only_udm.principal.nat_ip`. - event.idm.read_only_udm.target.nat_ip: Newly mapped `xlatedst` raw log field to `event.idm.read_only_udm.target.nat_ip`. - event.idm.read_only_udm.principal.nat_port: Newly mapped `xlatesport` raw log field to `event.idm.read_only_udm.principal.nat_port`. - event.idm.read_only_udm.target.nat_port: Newly mapped `xlatedport` raw log field to `event.idm.read_only_udm.target.nat_port`. - event.idm.read_only_udm.network.direction: Newly mapped `ifdir` raw log field to `event.idm.read_only_udm.network.direction`. - event.idm.read_only_udm.metadata.product_log_id: Newly mapped `logid` raw log field to `event.idm.read_only_udm.metadata.product_log_id`. - event.idm.read_only_udm.security_result.action: Newly mapped `rule_action` raw log field to `event.idm.read_only_udm.security_result.action`. - event.idm.read_only_udm.security_result.rule_name: Newly mapped `rule_name` raw log field to `event.idm.read_only_udm.security_result.rule_name`. - event.idm.read_only_udm.security_result.rule_id: Newly mapped `rule_uid` raw log field to `event.idm.read_only_udm.security_result.rule_id`. - event.idm.read_only_udm.network.ip_protocol: Newly mapped `proto` raw log field to `event.idm.read_only_udm.network.ip_protocol`. - event.idm.read_only_udm.security_result.severity: Newly mapped `severity` raw log field to `event.idm.read_only_udm.security_result.severity`. - event.idm.read_only_udm.security_result.severity: Newly mapped `severityType` raw log field to `event.idm.read_only_udm.security_result.severity`. - event.idm.read_only_udm.principal.application: Newly mapped `app_name` raw log field to `event.idm.read_only_udm.principal.application`. - event.idm.read_only_udm.security_result.detection_fields: Newly mapped `parent_rule`, `nat_rulenum`, `nat_addtnl_rulenum` raw log fields to `event.idm.read_only_udm.security_result.detection_fields`. - Enhanced timestamp parsing to support `ISO8601`, `yyyy-MM-ddTHH:mm:ss.SSSZZ`, and `yyyy-MM-dd HH:mm:ss.SSS` formats, and utilize the `timeStamp` field from CEF logs. - Included logic to determine IP protocol from the "proto" field.
2025-12-02	Enhancement: - Added support for Syslog format with key-value pairs in the message body. - event.idm.read_only_udm.principal.user.userid: Newly mapped `user` raw log field to `event.idm.read_only_udm.principal.user.userid`. - event.idm.read_only_udm.principal.mac: Newly mapped `mac` raw log field to `event.idm.read_only_udm.principal.mac` and `event.idm.read_only_udm.principal.asset.mac`. - event.idm.read_only_udm.principal.ip: Newly mapped `ip` and `origin` raw log fields to `event.idm.read_only_udm.principal.ip` and `event.idm.read_only_udm.principal.asset.ip`. - event.idm.read_only_udm.security_result.action_details: Newly mapped `action` raw log field to `event.idm.read_only_udm.security_result.action_details`. - event.idm.read_only_udm.security_result.detection_fields: Newly mapped `action_result` raw log field to `event.idm.read_only_udm.security_result.detection_fields`. - event.idm.read_only_udm.principal.hostname: Newly mapped `source` raw log field to `event.idm.read_only_udm.principal.hostname` and `event.idm.read_only_udm.principal.asset.hostname`. - event.idm.read_only_udm.target.hostname: Newly mapped `computer` raw log field to `event.idm.read_only_udm.target.hostname` and `event.idm.read_only_udm.target.asset.hostname`. - event.idm.read_only_udm.target.application: Newly mapped `application` raw log field to `event.idm.read_only_udm.target.application`. - event.idm.read_only_udm.principal.network.session_id: Newly mapped `client_id` raw log field to `event.idm.read_only_udm.principal.network.session_id`. - event.idm.read_only_udm.principal.application: Newly mapped `client_app` raw log field to `event.idm.read_only_udm.principal.application`. - event.idm.read_only_udm.principal.network.http.user_agent: Newly mapped `client_agent` raw log field to `event.idm.read_only_udm.principal.network.http.user_agent`. - event.idm.read_only_udm.target: Removed mapping of `intermediary` from `event.idm.read_only_udm.target`. - event.idm.read_only_udm.intermediary: Mapped `intermediary` raw log field to `event.idm.read_only_udm.intermediary`. - event.idm.read_only_udm.metadata.description: Newly mapped `desc` raw log field to `event.idm.read_only_udm.metadata.description`. - event.idm.read_only_udm.target.resource.attribute.labels: Newly mapped `service` raw log field to `event.idm.read_only_udm.target.resource.attribute.labels`. - Added support for timestamp format `yyyy-MM-ddTHH:mm:ss.SSSZZ`. - Set `metadata.event_type` to `USER_UNCATEGORIZED` for events where the `user` field is present. - Expanded grok patterns to handle additional syslog message structures and included CEF format extraction and UDM mapping to support dropped logs of different formats.
2024-12-09	Enhancement: - Newly created parser.