Class: TunnelActivity

name: TunnelActivity
annotations:
  ocsf_constraints:
    tag: ocsf_constraints
    value: '{"at_least_one": ["connection_info", "session", "src_endpoint", "traffic",

      "tunnel_interface", "tunnel_type_id"]}'
  ocsf_event_uid:
    tag: ocsf_event_uid
    value: 14
  associations:
    tag: associations
    value: '{"src_endpoint": ["user"], "user": ["src_endpoint"]}'
description: 'Tunnel Activity events report secure tunnel establishment (such as VPN),

  teardowns, renewals, and other network tunnel specific actions.'
notes:
- 'D3FEND™ Ontology d3f:TunnelEvent —

  https://d3fend.mitre.org/event/d3f:TunnelEvent/'
in_subset:
- network_subset
from_schema: https://w3id.org/lmodel/ocsf
see_also:
- https://d3fend.mitre.org/event/d3f:TunnelEvent/
aliases:
- Tunnel Activity
is_a: NetworkEvent
slots:
- activity_id
- connection_info
- device
- dst_endpoint
- protocol_name
- session
- src_endpoint
- traffic
- tunnel_interface
- tunnel_type
- tunnel_type_id
- user
slot_usage:
  activity_id:
    name: activity_id
    range: TunnelActivityActivityIdEnum
    required: true
  connection_info:
    name: connection_info
    annotations:
      group:
        tag: group
        value: context
    description: The tunnel connection information.
  device:
    name: device
    annotations:
      group:
        tag: group
        value: primary
    description: The device that reported the event.
    recommended: true
  dst_endpoint:
    name: dst_endpoint
    annotations:
      group:
        tag: group
        value: primary
    description: The server responding to the tunnel connection.
    recommended: true
  protocol_name:
    name: protocol_name
    annotations:
      group:
        tag: group
        value: context
    description: 'The networking protocol associated with the tunnel. E.g. <code>IPSec</code>,

      <code>SSL</code>, <code>GRE</code>.'
  session:
    name: session
    annotations:
      group:
        tag: group
        value: primary
    description: The session associated with the tunnel.
    recommended: true
  src_endpoint:
    name: src_endpoint
    annotations:
      group:
        tag: group
        value: primary
    description: The initiator (client) of the tunnel connection.
    recommended: true
  traffic:
    name: traffic
    annotations:
      group:
        tag: group
        value: context
    description: 'Traffic refers to the amount of data moving across the tunnel at
      a given point

      of time. Ex: <code>bytes_in</code> and <code>bytes_out</code>.'
  tunnel_interface:
    name: tunnel_interface
    annotations:
      group:
        tag: group
        value: primary
    description: 'The information about the virtual tunnel interface, e.g. <code>utun0</code>.

      This is usually associated with the private (rfc-1918) ip of the tunnel.'
    recommended: true
  tunnel_type:
    name: tunnel_type
    annotations:
      group:
        tag: group
        value: primary
    description: 'The type of tunnel configuration, normalized to the caption of the

      <code>tunnel_type_id</code> value, indicating the scope of traffic routed

      through the connection. Example: <code>Split Tunnel</code> or <code>Full

      Tunnel</code>.'
    recommended: true
  tunnel_type_id:
    name: tunnel_type_id
    annotations:
      group:
        tag: group
        value: primary
    description: 'The normalized identifier for the type of tunnel configuration,
      indicating the

      scope of traffic routed through the connection. Example: <code>1 (Split

      Tunnel)</code> or <code>2 (Full Tunnel)</code>.'
    range: TunnelActivityTunnelTypeIdEnum
    recommended: true
  user:
    name: user
    annotations:
      group:
        tag: group
        value: primary
    description: The user associated with the tunnel activity.
    recommended: true
rules:
- postconditions:
    any_of:
    - slot_conditions:
        connection_info:
          name: connection_info
          required: true
    - slot_conditions:
        session:
          name: session
          required: true
    - slot_conditions:
        src_endpoint:
          name: src_endpoint
          required: true
    - slot_conditions:
        traffic:
          name: traffic
          required: true
    - slot_conditions:
        tunnel_interface:
          name: tunnel_interface
          required: true
    - slot_conditions:
        tunnel_type_id:
          name: tunnel_type_id
          required: true
  description: 'OCSF at_least_one: at least one of [''connection_info'', ''session'',

    ''src_endpoint'', ''traffic'', ''tunnel_interface'', ''tunnel_type_id''] must
    be set.'

name: TunnelActivity
annotations:
  ocsf_constraints:
    tag: ocsf_constraints
    value: '{"at_least_one": ["connection_info", "session", "src_endpoint", "traffic",

      "tunnel_interface", "tunnel_type_id"]}'
  ocsf_event_uid:
    tag: ocsf_event_uid
    value: 14
  associations:
    tag: associations
    value: '{"src_endpoint": ["user"], "user": ["src_endpoint"]}'
description: 'Tunnel Activity events report secure tunnel establishment (such as VPN),

  teardowns, renewals, and other network tunnel specific actions.'
notes:
- 'D3FEND™ Ontology d3f:TunnelEvent —

  https://d3fend.mitre.org/event/d3f:TunnelEvent/'
in_subset:
- network_subset
from_schema: https://w3id.org/lmodel/ocsf
see_also:
- https://d3fend.mitre.org/event/d3f:TunnelEvent/
aliases:
- Tunnel Activity
is_a: NetworkEvent
slot_usage:
  activity_id:
    name: activity_id
    range: TunnelActivityActivityIdEnum
    required: true
  connection_info:
    name: connection_info
    annotations:
      group:
        tag: group
        value: context
    description: The tunnel connection information.
  device:
    name: device
    annotations:
      group:
        tag: group
        value: primary
    description: The device that reported the event.
    recommended: true
  dst_endpoint:
    name: dst_endpoint
    annotations:
      group:
        tag: group
        value: primary
    description: The server responding to the tunnel connection.
    recommended: true
  protocol_name:
    name: protocol_name
    annotations:
      group:
        tag: group
        value: context
    description: 'The networking protocol associated with the tunnel. E.g. <code>IPSec</code>,

      <code>SSL</code>, <code>GRE</code>.'
  session:
    name: session
    annotations:
      group:
        tag: group
        value: primary
    description: The session associated with the tunnel.
    recommended: true
  src_endpoint:
    name: src_endpoint
    annotations:
      group:
        tag: group
        value: primary
    description: The initiator (client) of the tunnel connection.
    recommended: true
  traffic:
    name: traffic
    annotations:
      group:
        tag: group
        value: context
    description: 'Traffic refers to the amount of data moving across the tunnel at
      a given point

      of time. Ex: <code>bytes_in</code> and <code>bytes_out</code>.'
  tunnel_interface:
    name: tunnel_interface
    annotations:
      group:
        tag: group
        value: primary
    description: 'The information about the virtual tunnel interface, e.g. <code>utun0</code>.

      This is usually associated with the private (rfc-1918) ip of the tunnel.'
    recommended: true
  tunnel_type:
    name: tunnel_type
    annotations:
      group:
        tag: group
        value: primary
    description: 'The type of tunnel configuration, normalized to the caption of the

      <code>tunnel_type_id</code> value, indicating the scope of traffic routed

      through the connection. Example: <code>Split Tunnel</code> or <code>Full

      Tunnel</code>.'
    recommended: true
  tunnel_type_id:
    name: tunnel_type_id
    annotations:
      group:
        tag: group
        value: primary
    description: 'The normalized identifier for the type of tunnel configuration,
      indicating the

      scope of traffic routed through the connection. Example: <code>1 (Split

      Tunnel)</code> or <code>2 (Full Tunnel)</code>.'
    range: TunnelActivityTunnelTypeIdEnum
    recommended: true
  user:
    name: user
    annotations:
      group:
        tag: group
        value: primary
    description: The user associated with the tunnel activity.
    recommended: true
attributes:
  activity_id:
    name: activity_id
    annotations:
      group:
        tag: group
        value: classification
    description: The normalized identifier of the activity that triggered the event.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Activity ID
    rank: 1000
    alias: activity_id
    owner: TunnelActivity
    domain_of:
    - BaseEvent
    - ApiActivity
    - ApplicationError
    - ApplicationLifecycle
    - DatastoreActivity
    - FileHosting
    - ScanActivity
    - WebResourceAccessActivity
    - WebResourcesActivity
    - DiscoveryEvent
    - DiscoveryResult
    - DataSecurityFinding
    - Finding
    - IncidentFinding
    - SecurityFinding
    - AccountChange
    - Authentication
    - AuthorizeSession
    - EntityManagement
    - GroupManagement
    - UserAccess
    - DhcpActivity
    - DnsActivity
    - EmailActivity
    - EmailFileActivity
    - EmailUrlActivity
    - FtpActivity
    - HttpActivity
    - NetworkActivity
    - NetworkFileActivity
    - NtpActivity
    - RdpActivity
    - SmbActivity
    - SshActivity
    - TunnelActivity
    - RemediationActivity
    - EventLogActvity
    - FileActivity
    - KernelActivity
    - KernelExtensionActivity
    - MemoryActivity
    - ModuleActivity
    - PeripheralActivity
    - ProcessActivity
    - ScheduledJobActivity
    - ScriptActivity
    - AirborneBroadcastActivity
    - DroneFlightsActivity
    - RegistryKeyActivity
    - RegistryValueActivity
    - WindowsResourceActivity
    - WindowsServiceActivity
    range: TunnelActivityActivityIdEnum
    required: true
  connection_info:
    name: connection_info
    annotations:
      group:
        tag: group
        value: context
    description: The tunnel connection information.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Connection Info
    rank: 1000
    alias: connection_info
    owner: TunnelActivity
    domain_of:
    - QueryEvidence
    - Evidences
    - FileHosting
    - NetworkConnectionQuery
    - NetworkEvent
    - DnsActivity
    - NetworkFileActivity
    - RdpActivity
    - TunnelActivity
    - NetworkRemediationActivity
    - UnmannedSystemsEvent
    range: NetworkConnectionInfo
    recommended: true
  device:
    name: device
    annotations:
      group:
        tag: group
        value: primary
    description: The device that reported the event.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Device
    rank: 1000
    alias: device
    owner: TunnelActivity
    domain_of:
    - AuthFactor
    - Evidences
    - Logger
    - ManagedEntity
    - HostProfile
    - ConfigState
    - DeviceConfigStateChange
    - EvidenceInfo
    - InventoryInfo
    - PatchState
    - SoftwareInfo
    - DataSecurityFinding
    - Finding
    - RdpActivity
    - TunnelActivity
    - SystemEvent
    - EventLogActvity
    range: Device
    recommended: true
  dst_endpoint:
    name: dst_endpoint
    annotations:
      group:
        tag: group
        value: primary
    description: The server responding to the tunnel connection.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Destination Endpoint
    rank: 1000
    alias: dst_endpoint
    owner: TunnelActivity
    domain_of:
    - Evidences
    - LoadBalancer
    - ApiActivity
    - DatastoreActivity
    - FileHosting
    - WebResourcesActivity
    - DataSecurityFinding
    - Authentication
    - AuthorizeSession
    - NetworkEvent
    - DhcpActivity
    - DnsActivity
    - EmailActivity
    - NetworkActivity
    - NetworkFileActivity
    - TunnelActivity
    - EventLogActvity
    - UnmannedSystemsEvent
    - AirborneBroadcastActivity
    range: NetworkEndpoint
    recommended: true
  protocol_name:
    name: protocol_name
    annotations:
      group:
        tag: group
        value: context
    description: 'The networking protocol associated with the tunnel. E.g. <code>IPSec</code>,

      <code>SSL</code>, <code>GRE</code>.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Protocol Name
    rank: 1000
    alias: protocol_name
    owner: TunnelActivity
    domain_of:
    - PortInfo
    - Scim
    - Sso
    - Idp
    - NetworkConnectionInfo
    - EmailActivity
    - TunnelActivity
    - AirborneBroadcastActivity
    - DroneFlightsActivity
    range: string
  session:
    name: session
    annotations:
      group:
        tag: group
        value: primary
    description: The session associated with the tunnel.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Session
    rank: 1000
    alias: session
    owner: TunnelActivity
    domain_of:
    - QueryEvidence
    - Actor
    - NetworkConnectionInfo
    - Process
    - SessionQuery
    - Authentication
    - AuthorizeSession
    - TunnelActivity
    range: Session
    recommended: true
  src_endpoint:
    name: src_endpoint
    annotations:
      group:
        tag: group
        value: primary
    description: The initiator (client) of the tunnel connection.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Source Endpoint
    rank: 1000
    alias: src_endpoint
    owner: TunnelActivity
    domain_of:
    - Evidences
    - ApiActivity
    - DatastoreActivity
    - FileHosting
    - WebResourceAccessActivity
    - WebResourcesActivity
    - DataSecurityFinding
    - IamEvent
    - NetworkEvent
    - DhcpActivity
    - EmailActivity
    - NetworkActivity
    - NetworkFileActivity
    - TunnelActivity
    - EventLogActvity
    - UnmannedSystemsEvent
    - AirborneBroadcastActivity
    - DroneFlightsActivity
    range: NetworkEndpoint
    recommended: true
  traffic:
    name: traffic
    annotations:
      group:
        tag: group
        value: context
    description: 'Traffic refers to the amount of data moving across the tunnel at
      a given point

      of time. Ex: <code>bytes_in</code> and <code>bytes_out</code>.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Traffic
    rank: 1000
    alias: traffic
    owner: TunnelActivity
    domain_of:
    - NetworkEvent
    - DnsActivity
    - TunnelActivity
    - UnmannedSystemsEvent
    - AirborneBroadcastActivity
    - DroneFlightsActivity
    range: NetworkTraffic
    recommended: true
  tunnel_interface:
    name: tunnel_interface
    annotations:
      group:
        tag: group
        value: primary
    description: 'The information about the virtual tunnel interface, e.g. <code>utun0</code>.

      This is usually associated with the private (rfc-1918) ip of the tunnel.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Interface
    rank: 1000
    alias: tunnel_interface
    owner: TunnelActivity
    domain_of:
    - TunnelActivity
    range: NetworkInterface
    recommended: true
  tunnel_type:
    name: tunnel_type
    annotations:
      group:
        tag: group
        value: primary
    description: 'The type of tunnel configuration, normalized to the caption of the

      <code>tunnel_type_id</code> value, indicating the scope of traffic routed

      through the connection. Example: <code>Split Tunnel</code> or <code>Full

      Tunnel</code>.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Tunnel Type
    rank: 1000
    alias: tunnel_type
    owner: TunnelActivity
    domain_of:
    - TunnelActivity
    range: string
    recommended: true
  tunnel_type_id:
    name: tunnel_type_id
    annotations:
      group:
        tag: group
        value: primary
    description: 'The normalized identifier for the type of tunnel configuration,
      indicating the

      scope of traffic routed through the connection. Example: <code>1 (Split

      Tunnel)</code> or <code>2 (Full Tunnel)</code>.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Tunnel Type ID
    rank: 1000
    alias: tunnel_type_id
    owner: TunnelActivity
    domain_of:
    - TunnelActivity
    range: TunnelActivityTunnelTypeIdEnum
    recommended: true
  user:
    name: user
    annotations:
      group:
        tag: group
        value: primary
    description: The user associated with the tunnel activity.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - User
    rank: 1000
    alias: user
    owner: TunnelActivity
    domain_of:
    - QueryEvidence
    - Actor
    - Evidences
    - Job
    - ManagedEntity
    - Process
    - UserInventory
    - UserQuery
    - IamAnalysisFinding
    - AccountChange
    - Authentication
    - AuthorizeSession
    - GroupManagement
    - UserAccess
    - RdpActivity
    - TunnelActivity
    range: User
    recommended: true
  app_name:
    name: app_name
    annotations:
      group:
        tag: group
        value: context
    description: 'The network application name identified by tools such as NBAR or
      App ID (e.g.,

      youtube, facebook, webex). This represents a specific network application that

      uses standard protocols (such as https or quic) to deliver its service.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Application Name
    rank: 1000
    alias: app_name
    owner: TunnelActivity
    domain_of:
    - Actor
    - NetworkEvent
    range: string
  app_protocol_name:
    name: app_protocol_name
    annotations:
      group:
        tag: group
        value: context
    description: 'The application-layer (Layer 7) protocol name identified by deep
      packet inspection or packet parsing (e.g., <code>https</code>, <code>quic</code>,
      <code>ssh</code>, <code>dns</code>), expressed as an IANA-registered service
      name from the IANA Service Name and Transport Protocol Port Number Registry.


      <p><b>Note:</b> Port numbers alone are not always a reliable indicator of the
      actual application protocol in use.</p>'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Application Protocol Name
    rank: 1000
    alias: app_protocol_name
    owner: TunnelActivity
    domain_of:
    - NetworkEvent
    range: string
  cumulative_traffic:
    name: cumulative_traffic
    annotations:
      group:
        tag: group
        value: context
    description: 'The cumulative (running total) network traffic aggregated from the
      start of a

      flow or session. Use when reporting: (1) total accumulated bytes/packets since

      flow initiation, (2) combined aggregation models where both incremental deltas

      and running totals are reported together (populate both <code>traffic</code>

      for the delta and this attribute for the cumulative total), or (3) final

      summary metrics when a long-lived connection closes. This represents the sum
      of

      all activity from flow start to the current observation, not a delta or

      point-in-time value.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Cumulative Traffic
    rank: 1000
    alias: cumulative_traffic
    owner: TunnelActivity
    domain_of:
    - NetworkEvent
    range: NetworkTraffic
  ja4_fingerprint_list:
    name: ja4_fingerprint_list
    annotations:
      group:
        tag: group
        value: context
    description: A list of the JA4+ network fingerprints.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - JA4+ Fingerprints
    rank: 1000
    alias: ja4_fingerprint_list
    owner: TunnelActivity
    domain_of:
    - Evidences
    - NetworkEvent
    range: Ja4Fingerprint
    multivalued: true
  network_observation_point:
    name: network_observation_point
    annotations:
      group:
        tag: group
        value: context
    description: 'The network endpoint that observes or inspects network traffic as
      a third-party

      system, used when the observer is neither the source nor the destination of
      the

      communication (when <code>observation_point_id</code> = 3). Examples include

      network taps, span ports, inline security devices, or packet capture systems

      that monitor traffic between other endpoints.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Network Observation Point
    rank: 1000
    alias: network_observation_point
    owner: TunnelActivity
    domain_of:
    - NetworkEvent
    range: NetworkEndpoint
  observation_point:
    name: observation_point
    description: 'Indicates whether the source network endpoint, destination network
      endpoint, or

      neither served as the observation point for the activity. The value is

      normalized to the caption of the <code>observation_point_id</code>.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Observation Point
    rank: 1000
    alias: observation_point
    owner: TunnelActivity
    domain_of:
    - NetworkEvent
    range: string
  observation_point_id:
    name: observation_point_id
    annotations:
      sibling:
        tag: sibling
        value: observation_point
    description: 'The normalized identifier of the observation point. The observation
      point

      identifier indicates whether the source network endpoint, destination network

      endpoint, or neither served as the observation point for the activity.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Observation Point ID
    rank: 1000
    alias: observation_point_id
    owner: TunnelActivity
    domain_of:
    - NetworkEvent
    range: NetworkEventObservationPointIdEnum
  packet_list:
    name: packet_list
    annotations:
      group:
        tag: group
        value: context
    description: The list of packet objects describing captured network packets.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Packets
    rank: 1000
    alias: packet_list
    owner: TunnelActivity
    domain_of:
    - NetworkEvent
    range: Packet
    multivalued: true
  proxy:
    name: proxy
    annotations:
      group:
        tag: group
        value: primary
    description: The proxy (server) in a network connection.
    deprecated: Use the <code>proxy_endpoint</code> attribute instead. (since 1.1.0)
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Proxy
    rank: 1000
    alias: proxy
    owner: TunnelActivity
    domain_of:
    - WebResourceAccessActivity
    - NetworkEvent
    range: NetworkProxy
    recommended: true
  tls:
    name: tls
    annotations:
      group:
        tag: group
        value: context
    description: The Transport Layer Security (TLS) attributes.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - TLS
    rank: 1000
    alias: tls
    owner: TunnelActivity
    domain_of:
    - Evidences
    - WebResourceAccessActivity
    - WebResourcesActivity
    - NetworkEvent
    - UnmannedSystemsEvent
    range: Tls
  proxy_connection_info:
    name: proxy_connection_info
    description: The connection information from the proxy server to the remote server.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Proxy Connection Info
    rank: 1000
    alias: proxy_connection_info
    owner: TunnelActivity
    domain_of:
    - NetworkProxyProfile
    range: NetworkConnectionInfo
    recommended: true
  proxy_endpoint:
    name: proxy_endpoint
    description: The proxy (server) in a network connection.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Proxy Endpoint
    rank: 1000
    alias: proxy_endpoint
    owner: TunnelActivity
    domain_of:
    - NetworkEndpoint
    - NetworkProxyProfile
    - UnmannedSystemsEvent
    range: NetworkProxy
  proxy_http_request:
    name: proxy_http_request
    description: The HTTP Request from the proxy server to the remote server.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Proxy HTTP Request
    rank: 1000
    alias: proxy_http_request
    owner: TunnelActivity
    domain_of:
    - NetworkProxyProfile
    range: HttpRequest
  proxy_http_response:
    name: proxy_http_response
    description: The HTTP Response from the remote server to the proxy server.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Proxy HTTP Response
    rank: 1000
    alias: proxy_http_response
    owner: TunnelActivity
    domain_of:
    - NetworkProxyProfile
    range: HttpResponse
  proxy_tls:
    name: proxy_tls
    description: The TLS protocol negotiated between the proxy server and the remote
      server.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Proxy TLS
    rank: 1000
    alias: proxy_tls
    owner: TunnelActivity
    domain_of:
    - NetworkProxyProfile
    range: Tls
    recommended: true
  proxy_traffic:
    name: proxy_traffic
    description: 'The network traffic refers to the amount of data moving across a
      network, from

      proxy to remote server at a given point of time.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Proxy Traffic
    rank: 1000
    alias: proxy_traffic
    owner: TunnelActivity
    domain_of:
    - NetworkProxyProfile
    range: NetworkTraffic
    recommended: true
  load_balancer:
    name: load_balancer
    description: 'The Load Balancer object contains information related to the device
      that is

      distributing incoming traffic to specified destinations.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Load Balancer
    rank: 1000
    alias: load_balancer
    owner: TunnelActivity
    domain_of:
    - LoadBalancerProfile
    range: LoadBalancer
    recommended: true
  activity_name:
    name: activity_name
    annotations:
      group:
        tag: group
        value: classification
    description: The event activity name, as defined by the activity_id.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Activity
    rank: 1000
    alias: activity_name
    owner: TunnelActivity
    domain_of:
    - BaseEvent
    - DataSecurityFinding
    - Finding
    - IncidentFinding
    range: string
  category_name:
    name: category_name
    annotations:
      group:
        tag: group
        value: classification
    description: The event category name, as defined by category_uid value.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Category
    rank: 1000
    alias: category_name
    owner: TunnelActivity
    domain_of:
    - BaseEvent
    range: string
  category_uid:
    name: category_uid
    annotations:
      group:
        tag: group
        value: classification
    description: The category unique identifier of the event.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Category ID
    rank: 1000
    alias: category_uid
    owner: TunnelActivity
    domain_of:
    - BaseEvent
    range: BaseEventCategoryUidEnum
    required: true
  class_name:
    name: class_name
    annotations:
      group:
        tag: group
        value: classification
    description: The event class name, as defined by class_uid value.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Class
    rank: 1000
    alias: class_name
    owner: TunnelActivity
    domain_of:
    - BaseEvent
    range: string
  class_uid:
    name: class_uid
    annotations:
      group:
        tag: group
        value: classification
    description: 'The unique identifier of a class. A class describes the attributes
      available in

      an event.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Class ID
    rank: 1000
    alias: class_uid
    owner: TunnelActivity
    domain_of:
    - BaseEvent
    range: BaseEventClassUidEnum
    required: true
  count:
    name: count
    annotations:
      group:
        tag: group
        value: occurrence
    description: 'The number of times that events in the same logical group occurred
      during the

      event <strong>Start Time</strong> to <strong>End Time</strong> period.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Count
    rank: 1000
    alias: count
    owner: TunnelActivity
    domain_of:
    - Observation
    - RelatedEvent
    - Session
    - DiscoveryDetails
    - UnmannedSystemOperatingArea
    - BaseEvent
    range: integer
  duration:
    name: duration
    annotations:
      group:
        tag: group
        value: occurrence
    description: 'The event duration or aggregate time, the amount of time the event
      covers from

      <code>start_time</code> to <code>end_time</code> in milliseconds.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Duration Milliseconds
    rank: 1000
    alias: duration
    owner: TunnelActivity
    domain_of:
    - Span
    - Timespan
    - Trace
    - FirewallRule
    - BaseEvent
    - ScanActivity
    range: integer
  end_time:
    name: end_time
    annotations:
      group:
        tag: group
        value: occurrence
    description: 'The end time of a time period, or the time of the most recent event
      included in

      the aggregate event.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - End Time
    rank: 1000
    alias: end_time
    owner: TunnelActivity
    domain_of:
    - Span
    - Timespan
    - Trace
    - NetworkTraffic
    - UnmannedSystemOperatingArea
    - MalwareScanInfo
    - BaseEvent
    - ScanActivity
    - Finding
    - IncidentFinding
    range: TimestampT
  enrichments:
    name: enrichments
    annotations:
      group:
        tag: group
        value: context
    description: 'The additional information from an external data source, which is
      associated

      with the event or a finding. For example add location information for the IP

      address in the DNS answers:</p><code>[{"name": "answers.ip", "value":

      "92.24.47.250", "type": "location", "data": {"city": "Socotra", "continent":

      "Asia", "coordinates": [-25.4153, 17.0743], "country": "YE", "desc":

      "Yemen"}}]</code>'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Enrichments
    rank: 1000
    alias: enrichments
    owner: TunnelActivity
    domain_of:
    - BaseEvent
    range: Enrichment
    multivalued: true
  message:
    name: message
    annotations:
      group:
        tag: group
        value: primary
    description: The description of the event/finding, as defined by the source.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Message
    rank: 1000
    alias: message
    owner: TunnelActivity
    domain_of:
    - Response
    - Span
    - HttpResponse
    - LoadBalancer
    - BaseEvent
    - ApplicationError
    range: string
    recommended: true
  metadata:
    name: metadata
    annotations:
      group:
        tag: group
        value: context
    description: The metadata associated with the event or a finding.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Metadata
    rank: 1000
    alias: metadata
    owner: TunnelActivity
    domain_of:
    - BaseEvent
    range: Metadata
    required: true
  observables:
    name: observables
    annotations:
      group:
        tag: group
        value: primary
    description: The observables associated with the event or a finding.
    notes:
    - 'OCSF Observables FAQ —

      https://github.com/ocsf/ocsf-docs/blob/main/articles/defining-and-using-observables.md'
    from_schema: https://w3id.org/lmodel/ocsf
    see_also:
    - https://github.com/ocsf/ocsf-docs/blob/main/articles/defining-and-using-observables.md
    aliases:
    - Observables
    rank: 1000
    alias: observables
    owner: TunnelActivity
    domain_of:
    - RelatedEvent
    - BaseEvent
    range: Observable
    recommended: true
    multivalued: true
  raw_data:
    name: raw_data
    annotations:
      group:
        tag: group
        value: context
    description: The raw event/finding data as received from the source.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Raw Data
    rank: 1000
    alias: raw_data
    owner: TunnelActivity
    domain_of:
    - BaseEvent
    range: string
  raw_data_hash:
    name: raw_data_hash
    annotations:
      group:
        tag: group
        value: context
    description: The hash, which describes the content of the raw_data field.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Raw Data Hash
    rank: 1000
    alias: raw_data_hash
    owner: TunnelActivity
    domain_of:
    - BaseEvent
    range: Fingerprint
  raw_data_size:
    name: raw_data_size
    annotations:
      group:
        tag: group
        value: context
    description: The size of the raw data which was transformed into an OCSF event,
      in bytes.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Raw Data Size
    rank: 1000
    alias: raw_data_size
    owner: TunnelActivity
    domain_of:
    - BaseEvent
    range: integer
  severity:
    name: severity
    annotations:
      group:
        tag: group
        value: classification
    description: 'The event/finding severity, normalized to the caption of the

      <code>severity_id</code> value. In the case of ''Other'', it is defined by the

      source.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Severity
    rank: 1000
    alias: severity
    owner: TunnelActivity
    domain_of:
    - Osint
    - RelatedEvent
    - VendorAttributes
    - Vulnerability
    - Check
    - Cvss
    - KbArticle
    - Malware
    - BaseEvent
    range: string
  severity_id:
    name: severity_id
    annotations:
      group:
        tag: group
        value: classification
    description: '<p>The normalized identifier of the event/finding severity.</p>The
      normalized

      severity is a measurement the effort and expense required to manage and resolve

      an event or incident. Smaller numerical values represent lower impact events,

      and larger numerical values represent higher impact events.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Severity ID
    rank: 1000
    alias: severity_id
    owner: TunnelActivity
    domain_of:
    - Osint
    - RelatedEvent
    - VendorAttributes
    - Check
    - Malware
    - BaseEvent
    range: SeverityIdEnum
    required: true
  start_time:
    name: start_time
    annotations:
      group:
        tag: group
        value: occurrence
    description: 'The start time of a time period, or the time of the least recent
      event included

      in the aggregate event.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Start Time
    rank: 1000
    alias: start_time
    owner: TunnelActivity
    domain_of:
    - Span
    - Timespan
    - Trace
    - NetworkTraffic
    - UnmannedSystemOperatingArea
    - MalwareScanInfo
    - BaseEvent
    - ScanActivity
    - Finding
    - IncidentFinding
    range: TimestampT
  status:
    name: status
    annotations:
      group:
        tag: group
        value: primary
    description: 'The event status, normalized to the caption of the status_id value.
      In the case

      of ''Other'', it is defined by the event source.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Status
    rank: 1000
    alias: status
    owner: TunnelActivity
    domain_of:
    - RelatedEvent
    - Ticket
    - Whois
    - AdditionalRestriction
    - Check
    - Compliance
    - DataClassification
    - HttpResponse
    - BaseEvent
    - Finding
    - IncidentFinding
    - DroneFlightsActivity
    range: string
    recommended: true
  status_code:
    name: status_code
    annotations:
      group:
        tag: group
        value: primary
    description: 'The event status code, as reported by the event source.<br /><br
      />For example,

      in a Windows Failed Authentication event, this would be the value of ''Failure

      Code'', e.g. 0x18.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Status Code
    rank: 1000
    alias: status_code
    owner: TunnelActivity
    domain_of:
    - Span
    - Compliance
    - BaseEvent
    - EventLogActvity
    range: string
    recommended: true
  status_detail:
    name: status_detail
    annotations:
      group:
        tag: group
        value: primary
    description: 'The status detail contains additional information about the event/finding

      outcome.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Status Detail
    rank: 1000
    alias: status_detail
    owner: TunnelActivity
    domain_of:
    - Compliance
    - LoadBalancer
    - BaseEvent
    - Authentication
    - EventLogActvity
    range: string
    recommended: true
  status_id:
    name: status_id
    annotations:
      group:
        tag: group
        value: primary
    description: The normalized identifier of the event status.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Status ID
    rank: 1000
    alias: status_id
    owner: TunnelActivity
    domain_of:
    - Ticket
    - AdditionalRestriction
    - Check
    - Compliance
    - DataClassification
    - BaseEvent
    - Finding
    - IncidentFinding
    - RemediationActivity
    - DroneFlightsActivity
    range: StatusIdEnum
    recommended: true
  time:
    name: time
    annotations:
      group:
        tag: group
        value: occurrence
    description: The normalized event occurrence time or the finding creation time.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Event Time
    rank: 1000
    alias: time
    owner: TunnelActivity
    domain_of:
    - TransformationInfo
    - BaseEvent
    range: TimestampT
    required: true
  timezone_offset:
    name: timezone_offset
    annotations:
      group:
        tag: group
        value: occurrence
    description: 'The number of minutes that the reported event <code>time</code>
      is ahead or

      behind UTC, in the range -1,080 to +1,080.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Timezone Offset
    rank: 1000
    alias: timezone_offset
    owner: TunnelActivity
    domain_of:
    - BaseEvent
    range: integer
    recommended: true
  type_name:
    name: type_name
    annotations:
      group:
        tag: group
        value: classification
    description: The event/finding type name, as defined by the type_uid.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Type Name
    rank: 1000
    alias: type_name
    owner: TunnelActivity
    domain_of:
    - RelatedEvent
    - BaseEvent
    range: string
  type_uid:
    name: type_uid
    annotations:
      group:
        tag: group
        value: classification
    description: 'The event/finding type ID. It identifies the event''s semantics
      and structure.

      The value is calculated by the logging system as: <code>class_uid * 100 +

      activity_id</code>.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Type ID
    rank: 1000
    alias: type_uid
    owner: TunnelActivity
    domain_of:
    - Observable
    - RelatedEvent
    - BaseEvent
    range: integer
    required: true
  unmapped:
    name: unmapped
    annotations:
      group:
        tag: group
        value: context
    description: 'The attributes that are not mapped to the event schema. The names
      and values of

      those attributes are specific to the event source.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Unmapped Data
    rank: 1000
    alias: unmapped
    owner: TunnelActivity
    domain_of:
    - BaseEvent
    range: Object
  api:
    name: api
    annotations:
      group:
        tag: group
        value: context
    description: Describes details about a typical API (Application Programming Interface)
      call.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - API Details
    rank: 1000
    alias: api
    owner: TunnelActivity
    domain_of:
    - Evidences
    - CloudProfile
    - ApiActivity
    range: Api
  cloud:
    name: cloud
    annotations:
      group:
        tag: group
        value: primary
    description: 'Describes details about the Cloud environment where the event or
      finding was

      created.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Cloud
    rank: 1000
    alias: cloud
    owner: TunnelActivity
    domain_of:
    - CloudProfile
    - CloudResourcesInventoryInfo
    range: Cloud
    required: true
  actor:
    name: actor
    description: 'The actor object describes details about the user/role/process that
      was the

      source of the activity. Note that this is not the threat actor of a campaign

      but may be part of a campaign.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Actor
    rank: 1000
    alias: actor
    owner: TunnelActivity
    domain_of:
    - Evidences
    - HostProfile
    - ApiActivity
    - DatastoreActivity
    - FileHosting
    - ConfigState
    - DeviceConfigStateChange
    - InventoryInfo
    - OsintInventoryInfo
    - SoftwareInfo
    - UserInventory
    - DataSecurityFinding
    - IamEvent
    - NetworkFileActivity
    - SystemEvent
    - EventLogActvity
    - FileActivity
    - KernelExtensionActivity
    - ModuleActivity
    - ProcessActivity
    - ScheduledJobActivity
    - RegistryKeyActivity
    - RegistryValueActivity
    range: Actor
  osint:
    name: osint
    annotations:
      group:
        tag: group
        value: primary
    description: 'The OSINT (Open Source Intelligence) object contains details related
      to an

      indicator such as the indicator itself, related indicators, geolocation,

      registrar information, subdomains, analyst commentary, and other contextual

      information. This information can be used to further enrich a detection or

      finding by providing decisioning support to other analysts and engineers.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - OSINT
    rank: 1000
    alias: osint
    owner: TunnelActivity
    domain_of:
    - OsintProfile
    - OsintInventoryInfo
    range: Osint
    required: true
    multivalued: true
  action:
    name: action
    description: The normalized caption of <code>action_id</code>.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Action
    rank: 1000
    alias: action
    owner: TunnelActivity
    domain_of:
    - SecurityControlProfile
    range: string
  action_id:
    name: action_id
    annotations:
      sibling:
        tag: sibling
        value: action
    description: 'The action taken by a control or other policy-based system leading
      to an

      outcome or disposition. An unknown action may still correspond to a known

      disposition. Refer to <code>disposition_id</code> for the outcome of the

      action.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Action ID
    rank: 1000
    alias: action_id
    owner: TunnelActivity
    domain_of:
    - SecurityControlProfile
    range: ActionIdEnum
    recommended: true
  attacks:
    name: attacks
    description: 'An array of MITRE ATT&CK® objects describing identified tactics,
      techniques &

      sub-techniques. The objects are compatible with MITRE ATLAS™ tactics,

      techniques & sub-techniques.'
    notes:
    - MITRE ATT&CK® — https://attack.mitre.org
    - MITRE ATLAS — https://atlas.mitre.org/matrices/ATLAS
    from_schema: https://w3id.org/lmodel/ocsf
    see_also:
    - https://attack.mitre.org
    - https://atlas.mitre.org/matrices/ATLAS
    aliases:
    - MITRE ATT&CK® and ATLAS™ Details
    rank: 1000
    alias: attacks
    owner: TunnelActivity
    domain_of:
    - Osint
    - RelatedEvent
    - FindingInfo
    - SecurityControlProfile
    - IncidentFinding
    - SecurityFinding
    range: Attack
    multivalued: true
  authorizations:
    name: authorizations
    description: 'Provides details about an authorization, such as authorization outcome,
      and any

      associated policies related to the activity/event.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Authorization Information
    rank: 1000
    alias: authorizations
    owner: TunnelActivity
    domain_of:
    - Actor
    - SecurityControlProfile
    range: Authorization
    multivalued: true
  confidence:
    name: confidence
    annotations:
      group:
        tag: group
        value: context
    description: 'The confidence, normalized to the caption of the confidence_id value.
      In the

      case of ''Other'', it is defined by the event source.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Confidence
    rank: 1000
    alias: confidence
    owner: TunnelActivity
    domain_of:
    - Osint
    - SecurityControlProfile
    - DataSecurityFinding
    - DetectionFinding
    - Finding
    - IncidentFinding
    - SecurityFinding
    range: string
  confidence_id:
    name: confidence_id
    annotations:
      group:
        tag: group
        value: context
    description: 'The normalized confidence refers to the accuracy of the rule that
      created the

      finding. A rule with a low confidence means that the finding scope is wide and

      may create finding reports that may not be malicious in nature.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Confidence ID
    rank: 1000
    alias: confidence_id
    owner: TunnelActivity
    domain_of:
    - Osint
    - SecurityControlProfile
    - DataSecurityFinding
    - DetectionFinding
    - Finding
    - IncidentFinding
    - SecurityFinding
    range: ConfidenceIdEnum
    recommended: true
  confidence_score:
    name: confidence_score
    annotations:
      group:
        tag: group
        value: context
    description: The confidence score as reported by the event source.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Confidence Score
    rank: 1000
    alias: confidence_score
    owner: TunnelActivity
    domain_of:
    - SecurityControlProfile
    - DataSecurityFinding
    - DetectionFinding
    - Finding
    - IncidentFinding
    - SecurityFinding
    range: integer
  disposition:
    name: disposition
    description: 'The disposition name, normalized to the caption of the disposition_id
      value. In

      the case of ''Other'', it is defined by the event source.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Disposition
    rank: 1000
    alias: disposition
    owner: TunnelActivity
    domain_of:
    - SecurityControlProfile
    range: string
  disposition_id:
    name: disposition_id
    annotations:
      sibling:
        tag: sibling
        value: disposition
    description: 'Describes the outcome or action taken by a security control, such
      as access

      control checks, malware detections or various types of policy violations.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Disposition ID
    rank: 1000
    alias: disposition_id
    owner: TunnelActivity
    domain_of:
    - SecurityControlProfile
    range: DispositionIdEnum
    recommended: true
  firewall_rule:
    name: firewall_rule
    description: 'The firewall rule that pertains to the control that triggered the
      event, if

      applicable.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Firewall Rule
    rank: 1000
    alias: firewall_rule
    owner: TunnelActivity
    domain_of:
    - SecurityControlProfile
    range: FirewallRule
  is_alert:
    name: is_alert
    description: 'Indicates that the event is considered to be an alertable signal.
      Should be set

      to <code>true</code> if <code>disposition_id = Alert</code> among other

      dispositions, and/or <code>risk_level_id</code> or <code>severity_id</code>
      of

      the event is elevated. Not all control events will be alertable, for example
      if

      <code>disposition_id = Exonerated</code> or <code>disposition_id =

      Allowed</code>.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Alert
    rank: 1000
    alias: is_alert
    owner: TunnelActivity
    domain_of:
    - SecurityControlProfile
    - DataSecurityFinding
    - DetectionFinding
    range: boolean
    recommended: true
  malware:
    name: malware
    description: A list of Malware objects, describing details about the identified
      malware.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Malware
    rank: 1000
    alias: malware
    owner: TunnelActivity
    domain_of:
    - Osint
    - SecurityControlProfile
    - DetectionFinding
    - SecurityFinding
    range: Malware
    multivalued: true
  malware_scan_info:
    name: malware_scan_info
    description: 'Describes details about the scan job that identified malware on
      the target

      system.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Malware Scan Info
    rank: 1000
    alias: malware_scan_info
    owner: TunnelActivity
    domain_of:
    - SecurityControlProfile
    - DetectionFinding
    range: MalwareScanInfo
  policy:
    name: policy
    description: 'The policy that pertains to the control that triggered the event,
      if

      applicable. For example the name of an anti-malware policy or an access control

      policy.'
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Policy
    rank: 1000
    alias: policy
    owner: TunnelActivity
    domain_of:
    - PermissionAnalysisResult
    - AdditionalRestriction
    - Assessment
    - Authorization
    - DataClassification
    - DataSecurity
    - ManagedEntity
    - SecurityControlProfile
    - ScanActivity
    - AccountChange
    range: Policy
  risk_details:
    name: risk_details
    annotations:
      group:
        tag: group
        value: context
    description: Describes the risk associated with the finding.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Risk Details
    rank: 1000
    alias: risk_details
    owner: TunnelActivity
    domain_of:
    - SecurityControlProfile
    - DataSecurityFinding
    - DetectionFinding
    range: string
  risk_level:
    name: risk_level
    annotations:
      group:
        tag: group
        value: context
    description: The risk level, normalized to the caption of the risk_level_id value.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Risk Level
    rank: 1000
    alias: risk_level
    owner: TunnelActivity
    domain_of:
    - ApplicationObject
    - User
    - Device
    - SecurityControlProfile
    - DataSecurityFinding
    - DetectionFinding
    - SecurityFinding
    range: string
  risk_level_id:
    name: risk_level_id
    annotations:
      group:
        tag: group
        value: context
    description: The normalized risk level id.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Risk Level ID
    rank: 1000
    alias: risk_level_id
    owner: TunnelActivity
    domain_of:
    - ApplicationObject
    - User
    - Device
    - SecurityControlProfile
    - DataSecurityFinding
    - DetectionFinding
    - SecurityFinding
    range: RiskLevelIdEnum
  risk_score:
    name: risk_score
    annotations:
      group:
        tag: group
        value: context
    description: The risk score as reported by the event source.
    from_schema: https://w3id.org/lmodel/ocsf
    aliases:
    - Risk Score
    rank: 1000
    alias: risk_score
    owner: TunnelActivity
    domain_of:
    - Osint
    - ApplicationObject
    - User
    - Device
    - SecurityControlProfile
    - DataSecurityFinding
    - DetectionFinding
    - SecurityFinding
    range: integer
rules:
- postconditions:
    any_of:
    - slot_conditions:
        connection_info:
          name: connection_info
          required: true
    - slot_conditions:
        session:
          name: session
          required: true
    - slot_conditions:
        src_endpoint:
          name: src_endpoint
          required: true
    - slot_conditions:
        traffic:
          name: traffic
          required: true
    - slot_conditions:
        tunnel_interface:
          name: tunnel_interface
          required: true
    - slot_conditions:
        tunnel_type_id:
          name: tunnel_type_id
          required: true
  description: 'OCSF at_least_one: at least one of [''connection_info'', ''session'',

    ''src_endpoint'', ''traffic'', ''tunnel_interface'', ''tunnel_type_id''] must
    be set.'