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Create vpc-flow-logs-ocsf.conf #23

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42 changes: 42 additions & 0 deletions parsers/ocsf/vpc-flow-logs-ocsf.conf
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{
attributes: {
"dataSource.category": "security",
"dataSource.name": "AWS VPC Flow",
"dataSource.vendor": "AWS",
"metadata.version": "1.0.0-rc.3",
"class_uid": "4001",
"category_uid": "4",
"class_name": "Network Activity",
"category_name": "Network Activity"
},
intermittentTimestamps: true,
patterns: {
vpcId: "vpc-[a-f0-9]{17}|-+",
subnetId: "subnet-[a-f0-9]{17}|-+",
instanceId: "i-[a-fA-F0-9]{17}|-+",
interfaceId: "eni-[a-fA-F0-9]{17}|-+",
accountId: "[a-f0-9]{12}|-+",
ip: "(?:[0-9]{1,3}.){3}[0-9]{1,3}|-+",
ipv6: "(?:[0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}|-+",
port: "[0-9]{1,5}|-+",
},
formats: [
// Format of flow log for version 2 and IPv4 address is allowed
"$metadata.product.version$ $cloud.account_uid=accountId$ $dst_endpoint.interface_uid=interfaceId$ $src_endpoint.ip=ip$ $dst_endpoint.ip=ip$ $src_endpoint.port=port$ $dst_endpoint.port=port$ $connection_info.protocol_num=number$ $traffic.packets=number$ $traffic.bytes=number$ $start_time=number$ $end_time=number$ $type_name$ $status_code$",

// Format of flow log for version 2 and IPv6 address is allowed.
"$metadata.product.version$ $cloud.account_uid=accountId$ $dst_endpoint.interface_uid=interfaceId$ $src_endpoint.ip=ipv6$ $dst_endpoint.ip=ipv6$ $src_endpoint.port=port$ $dst_endpoint.port=port$ $connection_info.protocol_num=number$ $traffic.packets=number$ $traffic.bytes=number$ $start_time=number$ $end_time=number$ $type_name$ $status_code$",

// Format of flow log for version 3 and tcp-flags field are represented by the second-to-last value in the flow log.
"$metadata.product.version$ $dst_endpoint.vpc_uid=vpcId$ $dst_endpoint.subnet_uid=subnetId$ $dst_endpoint.instance_uid=instanceId$ $dst_endpoint.interface_uid=interfaceId$ $cloud.account_uid=accountId$ $connection_info.protocol_ver$ $src_endpoint.intermediate_ips=ip$ $dst_endpoint.intermediate_ips=ip$ $src_endpoint.port=port$ $dst_endpoint.port=port$ $src_endpoint.ip=ip$ $dst_endpoint.ip=ip$ $connection_info.protocol_num=number$ $traffic.bytes=number$ $traffic.packets=number$ $start_time=number$ $end_time=number$ $type_name$ $connection_info.tcp_flags=number$ $status_code$",

// Format of flow log for version 3 and traffic through a transit gateway.
"$metadata.product.version$ $dst_endpoint.interface_uid=interfaceId$ $cloud.account_uid=accountId$ $dst_endpoint.vpc_uid=vpcId$ $dst_endpoint.subnet_uid=subnetId$ $dst_endpoint.instance_uid=instanceId$ $src_endpoint.intermediate_ips=ip$ $dst_endpoint.intermediate_ips=ip$ $src_endpoint.port=port$ $dst_endpoint.port=port$ $connection_info.protocol_num=number$ $connection_info.tcp_flags=number$ $connection_info.protocol_ver$ $src_endpoint.ip=ip$ $dst_endpoint.ip=ip$ $type_name$ $status_code$"

// Format of flow log for version 5
"$metadata.product.version$ $src_endpoint.intermediate_ips=ip$ $dst_endpoint.intermediate_ips=ip$ $src_endpoint.port=port$ $dst_endpoint.port=port$ $connection_info.protocol_num=number$ $start_time=number$ $end_time=number$ $connection_info.protocol_ver$ $traffic.packets=number$ $traffic.bytes=number$ $cloud.account_uid=accountId$ $dst_endpoint.vpc_uid=vpcId$ $dst_endpoint.subnet_uid=subnetId$ $dst_endpoint.instance_uid=instanceId$ $dst_endpoint.interface_uid=interfaceId$ $cloud.region$ $cloud.zone$ $sub_location_type$ $sub_location_id$ $type_name$ $connection_info.tcp_flags=number$ $src_endpoint.ip=ip$ $dst_endpoint.ip=ip$ $src_endpoint.svc_name$ $dst_endpoint.svc_name$ $connection_info.boundary$ $connection_info.direction$ $status_code$",

// Format of flow log for the NAT gateway network interface
"$dst_endpoint.instance_uid=instanceId$ $dst_endpoint.interface_uid=interfaceId$ $src_endpoint.intermediate_ips=ip$ $dst_endpoint.intermediate_ips=ip$ $src_endpoint.ip=ip$ $dst_endpoint.ip=ip$"
]
}