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Network Connection Query (5012)

Network Connection Query events report information about active network connections.

  • Category: Discovery
  • Extends: discovery_result
  • UID: 5012

Attributes

Section titled “Attributes”

Classification

Section titled “Classification”

activity_id

  • Type: integer_t
  • Requirement: required
  • Values:
    • 0 - Unknown: The event activity is unknown.
    • 1 - Query: The discovered results are via a query request.
    • 99 - Other: The event activity is not mapped. See the activity_name attribute, which contains a data source specific value.

The normalized identifier of the activity that triggered the event.

category_uid

  • Type: integer_t
  • Requirement: required
  • Values:
    • 5 - Discovery: Discovery events report the existence and state of devices, files, configurations, processes, registry keys, and other objects.

The category unique identifier of the event.

class_uid

  • Type: integer_t
  • Requirement: required
  • Values:
    • 5012 - Network Connection Query: Network Connection Query events report information about active network connections.

The unique identifier of a class. A class describes the attributes available in an event.

severity_id

  • Type: integer_t
  • Requirement: required
  • Values:
    • 0 - Unknown: The event/finding severity is unknown.
    • 1 - Informational: Informational message. No action required.
    • 2 - Low: The user decides if action is needed.
    • 3 - Medium: Action is required but the situation is not serious at this time.
    • 4 - High: Action is required immediately.
    • 5 - Critical: Action is required immediately and the scope is broad.
    • 6 - Fatal: An error occurred but it is too late to take remedial action.
    • 99 - Other: The event/finding severity is not mapped. See the severity attribute, which contains a data source specific value.

The normalized identifier of the event/finding severity.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.

type_uid

  • Type: long_t
  • Requirement: required
  • Values:
    • 501200 - Network Connection Query: Unknown
    • 501201 - Network Connection Query: Query: The discovered results are via a query request.
    • 501299 - Network Connection Query: Other

The event/finding type ID. It identifies the event’s semantics and structure. The value is calculated by the logging system as: class_uid * 100 + activity_id.

activity_name

  • Type: string_t
  • Requirement: optional

The event activity name, as defined by the activity_id.

category_name

  • Type: string_t
  • Requirement: optional

The event category name, as defined by category_uid value: Discovery.

class_name

  • Type: string_t
  • Requirement: optional

The event class name, as defined by class_uid value: Network Connection Query.

severity

  • Type: string_t
  • Requirement: optional

The event/finding severity, normalized to the caption of the severity_id value. In the case of ‘Other’, it is defined by the source.

type_name

  • Type: string_t
  • Requirement: optional

The event/finding type name, as defined by the type_uid.

Context

Section titled “Context”

metadata

The metadata associated with the event or a finding.

api cloud

  • Type: api
  • Requirement: optional

Describes details about a typical API (Application Programming Interface) call.

enrichments

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:[{"name": "answers.ip", "value": "92.24.47.250", "type": "location", "data": {"city": "Socotra", "continent": "Asia", "coordinates": [-25.4153, 17.0743], "country": "YE", "desc": "Yemen"}}]

raw_data

  • Type: string_t
  • Requirement: optional

The raw event/finding data as received from the source.

unmapped

  • Type: object
  • Requirement: optional

The attributes that are not mapped to the event schema. The names and values of those attributes are specific to the event source.

Occurrence

Section titled “Occurrence”

time

  • Type: timestamp_t
  • Requirement: required

The normalized event occurrence time or the finding creation time.

timezone_offset

  • Type: integer_t
  • Requirement: recommended

The number of minutes that the reported event time is ahead or behind UTC, in the range -1,080 to +1,080.

count

  • Type: integer_t
  • Requirement: optional

The number of times that events in the same logical group occurred during the event Start Time to End Time period.

duration

  • Type: long_t
  • Requirement: optional

The event duration or aggregate time, the amount of time the event covers from start_time to end_time in milliseconds.

end_time

  • Type: timestamp_t
  • Requirement: optional

The end time of a time period, or the time of the most recent event included in the aggregate event.

end_time_dt datetime

  • Type: datetime_t
  • Requirement: optional

The end time of a time period, or the time of the most recent event included in the aggregate event.

start_time

  • Type: timestamp_t
  • Requirement: optional

The start time of a time period, or the time of the least recent event included in the aggregate event.

start_time_dt datetime

  • Type: datetime_t
  • Requirement: optional

The start time of a time period, or the time of the least recent event included in the aggregate event.

time_dt datetime

  • Type: datetime_t
  • Requirement: optional

The normalized event occurrence time or the finding creation time.

Primary

Section titled “Primary”

cloud cloud

  • Type: cloud
  • Requirement: required

Describes details about the Cloud environment where the event was originally created or logged.

connection_info

The network connection information.

osint osint

  • Type: osint
  • Requirement: required

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.

process

  • Type: process
  • Requirement: required

The process that owns the socket.

query_result_id

  • Type: integer_t
  • Requirement: required
  • Values:
    • 0 - Unknown: The query result is unknown.
    • 1 - Exists: The target was found.
    • 2 - Partial: The target was partially found.
    • 3 - Does not exist: The target was not found.
    • 4 - Error: The discovery attempt failed.
    • 5 - Unsupported: Discovery of the target was not supported.
    • 99 - Other: The query result is not mapped. See the query_result attribute, which contains a data source specific value.

The normalized identifier of the query result.

state_id

  • Type: integer_t
  • Requirement: required
  • Values:
    • 0 - Unknown: The socket state is unknown.
    • 1 - ESTABLISHED: The socket has an established connection between a local application and a remote peer.
    • 2 - SYN_SENT: The socket is actively trying to establish a connection to a remote peer.
    • 3 - SYN_RECV: The socket has passively received a connection request from a remote peer.
    • 4 - FIN_WAIT1: The socket connection has been closed by the local application, the remote peer has not yet acknowledged the close, and the system is waiting for it to close its half of the connection.
    • 5 - FIN_WAIT2: The socket connection has been closed by the local application, the remote peer has acknowledged the close, and the system is waiting for it to close its half of the connection.
    • 6 - TIME_WAIT: The socket connection has been closed by the local application, the remote peer has closed its half of the connection, and the system is waiting to be sure that the remote peer received the last acknowledgement.
    • 7 - CLOSED: The socket is not in use.
    • 8 - CLOSE_WAIT: The socket connection has been closed by the remote peer, and the system is waiting for the local application to close its half of the connection.
    • 9 - LAST_ACK: The socket connection has been closed by the remote peer, the local application has closed its half of the connection, and the system is waiting for the remote peer to acknowledge the close.
    • 10 - LISTEN: The socket is listening for incoming connections.
    • 11 - CLOSING: The socket connection has been closed by the local application and the remote peer simultaneously, and the remote peer has not yet acknowledged the close attempt of the local application.
    • 99 - Other: The state is not mapped. See the state attribute, which contains a data source specific value.

The state of the socket.

device host

  • Type: device
  • Requirement: recommended

An addressable device, computer system or host.

message

  • Type: string_t
  • Requirement: recommended

The description of the event/finding, as defined by the source.

observables

The observables associated with the event or a finding.

query_info

The search details associated with the query request.

query_result

  • Type: string_t
  • Requirement: recommended

The result of the query.

state

  • Type: string_t
  • Requirement: recommended

The state of the socket, normalized to the caption of the state_id value. In the case of ‘Other’, it is defined by the event source.

status

  • Type: string_t
  • Requirement: recommended

The event status, normalized to the caption of the status_id value. In the case of ‘Other’, it is defined by the event source.

status_code

  • Type: string_t
  • Requirement: recommended

The event status code, as reported by the event source.

For example, in a Windows Failed Authentication event, this would be the value of ‘Failure Code’, e.g. 0x18.

status_detail

  • Type: string_t
  • Requirement: recommended

The status detail contains additional information about the event/finding outcome.

status_id

  • Type: integer_t
  • Requirement: recommended
  • Values:
    • 0 - Unknown: The status is unknown.
    • 1 - Success
    • 2 - Failure
    • 99 - Other: The event status is not mapped. See the status attribute, which contains a data source specific value.

The normalized identifier of the event status.

actor host

  • Type: actor
  • Requirement: optional

The actor object describes details about the user/role/process that was the source of the activity.

Objects Used

Section titled “Objects Used”