Recopila registros del IDS de Google Cloud
En este documento, se describe cómo puedes recopilar registros del IDS de Google Cloud habilitando la transferencia de telemetría de Google Cloud a Google Security Operations y cómo los campos de registro de los registros del IDS de Google Cloud se asignan a los campos del Modelo de datos unificado (UDM) de Google Security Operations.
Para obtener más información, consulta Transferencia de datos a Google Security Operations.
Una implementación típica consiste en registros de IDS de Google Cloud habilitados para la transferencia a Google Security Operations. Cada implementación de cliente puede diferir de esta representación y ser más compleja.
La implementación contiene los siguientes componentes:
Google Cloud: Son los servicios y productos de Google Cloud de los que recopilas registros.
Registros de IDS de Google Cloud: Son los registros de IDS de Google Cloud que están habilitados para la transferencia a Google Security Operations.
Google Security Operations: Google Security Operations retiene y analiza los registros del IDS de Google Cloud.
Una etiqueta de transferencia identifica el analizador que normaliza los datos de registro sin procesar al formato estructurado del UDM. La información de este documento se aplica al analizador
con la etiqueta de transferencia GCP_IDS
.
Antes de comenzar
- Asegúrate de que todos los sistemas de la arquitectura de implementación estén configurados en la zona horaria UTC.
Configura Google Cloud para transferir registros de IDS de Google Cloud
Para transferir los registros de IDS de Google Cloud a Google Security Operations, sigue los pasos que se indican en la página Cómo transferir registros de Google Cloud a Google Security Operations.
Si tienes problemas cuando transfieres registros de IDS de Google Cloud, comunícate con el equipo de asistencia de Operaciones de seguridad de Google.
Referencia de la asignación de campos
Referencia de la asignación de campo: GCP_IDS
En la siguiente tabla, se enumeran los campos de registro del tipo de registro GCP_IDS
y sus campos UDM correspondientes.
Log field | UDM mapping | Logic |
---|---|---|
insertId |
metadata.product_log_id |
|
jsonPayload.alert_severity |
security_result.severity |
|
jsonPayload.alert_time |
metadata.event_timestamp |
|
jsonPayload.application |
principal.application |
If the jsonPayload.direction log field value is equal to server-to-client , then the jsonPayload.application log field is mapped to the principal.application UDM field. |
jsonPayload.application |
target.application |
If the jsonPayload.direction log field value is equal to client-to-server or the logName log field value matches the regular expression pattern traffic , then the jsonPayload.application log field is mapped to the target.application UDM field. |
jsonPayload.category |
security_result.category_details |
|
jsonPayload.cves |
extensions.vulns.vulnerabilities.cve_id |
If the jsonPayload.cves log field value is not empty, then the jsonPayload.cves log field is mapped to the extensions.vulns.vulnerabilities.cve_id UDM field. |
jsonPayload.destination_ip_address |
target.ip |
|
jsonPayload.destination_port |
target.port |
|
jsonPayload.details |
extensions.vulns.vulnerabilities.description |
If the jsonPayload.cves log field value is not empty, then the jsonPayload.details log field is mapped to the extensions.vulns.vulnerabilities.description UDM field. |
jsonPayload.direction |
network.direction |
If the jsonPayload.direction log field value is equal to client-to-server , then the network.direction UDM field is set to OUTBOUND .Else, if the jsonPayload.direction log field value is equal to server-to-client , then the network.direction UDM field is set to INBOUND . |
jsonPayload.elapsed_time |
network.session_duration.seconds |
|
jsonPayload.ip_protocol |
network.ip_protocol |
If the jsonPayload.ip_protocol log field value contains one of the following values, then the network.ip_protocol UDM field is set to ICMP .
jsonPayload.ip_protocol log field value contains one of the following values, then the network.ip_protocol UDM field is set to IGMP .
jsonPayload.ip_protocol log field value contains one of the following values, then the network.ip_protocol UDM field is set to TCP .
jsonPayload.ip_protocol log field value contains one of the following values, then the network.ip_protocol UDM field is set to UDP .
jsonPayload.ip_protocol log field value contains one of the following values, then the network.ip_protocol UDM field is set to IP6IN4 .
jsonPayload.ip_protocol log field value contains one of the following values, then the network.ip_protocol UDM field is set to GRE .
jsonPayload.ip_protocol log field value contains one of the following values, then the network.ip_protocol UDM field is set to ESP .
jsonPayload.ip_protocol log field value contains one of the following values, then the network.ip_protocol UDM field is set to EIGRP .
jsonPayload.ip_protocol log field value contains one of the following values, then the network.ip_protocol UDM field is set to ETHERIP .
jsonPayload.ip_protocol log field value contains one of the following values, then the network.ip_protocol UDM field is set to PIM .
jsonPayload.ip_protocol log field value contains one of the following values, then the network.ip_protocol UDM field is set to VRRP .
|
jsonPayload.name |
security_result.threat_name |
|
jsonPayload.network |
target.resource.name |
If the jsonPayload.direction log field value is equal to client-to-server or the logName log field value matches the regular expression pattern traffic , then the jsonPayload.network log field is mapped to the target.resource.name UDM field. |
jsonPayload.network |
principal.resource.name |
If the jsonPayload.direction log field value is equal to server-to-client , then the jsonPayload.network log field is mapped to the principal.resource.name UDM field. |
|
target.resource.resource_type |
If the jsonPayload.direction log field value is equal to client-to-server or the logName log field value matches the regular expression pattern traffic , then the target.resource.resource_type UDM field is set to VPC_NETWORK . |
|
principal.resource.resource_type |
If the jsonPayload.direction log field value is equal to server-to-client , then the principal.resource.resource_type UDM field is set to VPC_NETWORK . |
jsonPayload.repeat_count |
security_result.detection_fields[repeat_count] |
|
jsonPayload.session_id |
network.session_id |
|
jsonPayload.source_ip_address |
principal.ip |
|
jsonPayload.source_port |
principal.port |
|
jsonPayload.start_time |
about.labels[start_time] (deprecated) |
|
jsonPayload.start_time |
additional.fields[start_time] |
|
jsonPayload.threat_id |
security_result.threat_id |
|
jsonPayload.total_bytes |
about.labels[total_bytes] (deprecated) |
|
jsonPayload.total_bytes |
additional.fields[total_bytes] |
|
jsonPayload.total_packets |
about.labels[total_packets] (deprecated) |
|
jsonPayload.total_packets |
additional.fields[total_packets] |
|
jsonPayload.type |
security_result.detection_fields[type] |
|
jsonPayload.uri_or_filename |
target.file.full_path |
|
logName |
security_result.category_details |
|
receiveTimestamp |
metadata.collected_timestamp |
|
resource.labels.id |
observer.resource.product_object_id |
|
resource.labels.location |
observer.location.name |
|
resource.labels.resource_container |
observer.resource.name |
|
resource.type |
observer.resource.resource_subtype |
|
timestamp |
metadata.event_timestamp |
If the logName log field value matches the regular expression pattern traffic , then the timestamp log field is mapped to the metadata.event_timestamp UDM field. |
|
observer.resource.resource_type |
The observer.resource.resource_type UDM field is set to CLOUD_PROJECT . |
|
observer.resource.attribute.cloud.environment |
The observer.resource.attribute.cloud.environment UDM field is set to GOOGLE_CLOUD_PLATFORM . |
|
idm.is_alert |
If the jsonPayload.alert_severity log field value is equal to CRITICAL , then the idm.is_alert UDM field is set to true . |
|
idm.is_significant |
If the jsonPayload.alert_severity log field value is equal to CRITICAL , then the idm.is_significant UDM field is set to true . |
|
security_result.category |
If the jsonPayload.category log field value is equal to dos , then the security_result.category UDM field is set to NETWORK_DENIAL_OF_SERVICE .Else, if the jsonPayload.category log field value is equal to info-leak , then the security_result.category UDM field is set to NETWORK_SUSPICIOUS .Else, if the jsonPayload.category log field value is equal to protocol-anomaly , then the security_result.category UDM field is set to NETWORK_MALICIOUS .Else, if the jsonPayload.category log field value contains one of the following values, then the security_result.category UDM field is set to SOFTWARE_MALICIOUS .
|
|
extensions.vulns.vulnerabilities.vendor |
if the jsonPayload.cves log field value is not empty, then the extensions.vulns.vulnerabilities.vendor UDM field is set to GCP_IDS . |
|
metadata.product_name |
The metadata.product_name UDM field is set to GCP_IDS . |
|
metadata.vendor_name |
The metadata.vendor_name UDM field is set to Google Cloud Platform . |
|
metadata.event_type |
If the jsonPayload.cves log field value is not empty, then the metadata.event_type UDM field is set to SCAN_VULN_NETWROK .Else, if the jsonPayload.source_ip_address log field value is not empty, then the metadata.event_type UDM field is set to SCAN_NETWORK .Else, the metadata.event_type UDM field is set to GENERIC_EVENT . |