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Detects

Joshua Hiller edited this page Dec 13, 2023 · 27 revisions

CrowdStrike Falcon CrowdStrike Subreddit

Using the Detects service collection

Uber class support Service class support Documentation Version Page Updated Samples Available

This service collection has code examples posted to the repository.

Table of Contents

Operation ID Description
GetAggregateDetects
PEP 8 get_aggregate_detects
Get detect aggregates as specified via json in request body.
UpdateDetectsByIdsV2
PEP 8 update_detects_by_ids
Modify the state, assignee, and visibility of detections
GetDetectSummaries
PEP 8 get_detect_summaries
View information about detections
QueryDetects
PEP 8 query_detects
Search for detection IDs that match a given query

Passing credentials

WARNING

client_id and client_secret are keyword arguments that contain your CrowdStrike API credentials. Please note that all examples below do not hard code these values. (These values are ingested as strings.)

CrowdStrike does not recommend hard coding API credentials or customer identifiers within source code.

GetAggregateDetects

Get detect aggregates as specified via json in request body.

PEP8 method name

get_aggregate_detects

Endpoint

Method Route
POST /detects/aggregates/detects/GET/v1

Content-Type

  • Consumes: application/json
  • Produces: application/json

Keyword Arguments

Name Service Uber Type Data type Description
body
Service Class Support

Uber Class Support
body list of dictionaries Full body payload in JSON format.
date_ranges
Service Class Support

No Uber Class Support
body list of dictionaries Applies to date_range aggregations.

Example:
[
  {
    "from": "2016-05-28T09:00:31Z",
    "to": "2016-05-30T09:00:31Z"
  },
  {
    "from": "2016-06-01T09:00:31Z",
    "to": "2016-06-10T09:00:31Z"
  }
]
exclude
Service Class Support

No Uber Class Support
body string Elements to exclude.
field
Service Class Support

No Uber Class Support
body string The field on which to compute the aggregation.
filter
Service Class Support

No Uber Class Support
body string FQL syntax formatted string to use to filter the results.
from
Service Class Support

No Uber Class Support
body integer Starting position.
include
Service Class Support

No Uber Class Support
body string Elements to include.
interval
Service Class Support

No Uber Class Support
body string Time interval for date histogram aggregations. Valid values include:
  • year
  • month
  • week
  • day
  • hour
  • minute
max_doc_count
Service Class Support

No Uber Class Support
body integer Only return buckets if values are less than or equal to the value here.
min_doc_count
Service Class Support

No Uber Class Support
body integer Only return buckets if values are greater than or equal to the value here.
missing
Service Class Support

No Uber Class Support
body string Missing is the value to be used when the aggregation field is missing from the object. In other words, the missing parameter defines how documents that are missing a value should be treated. By default they will be ignored, but it is also possible to treat them as if they had a value.
name
Service Class Support

No Uber Class Support
body string Name of the aggregate query, as chosen by the user. Used to identify the results returned to you.
q
Service Class Support

No Uber Class Support
body string Full text search across all metadata fields.
ranges
Service Class Support

No Uber Class Support
body list of dictionaries Applies to range aggregations. Ranges values will depend on field.

For example, if max_severity is used, ranges might look like:
[
  {
    "From": 0,
    "To": 70
  },
  {
    "From": 70,
    "To": 100
  }
]
size
Service Class Support

No Uber Class Support
body integer The max number of term buckets to be returned.
sub_aggregates
Service Class Support

No Uber Class Support
body list of dictionaries A nested aggregation, such as:
[
  {
    "name": "max_first_behavior",
    "type": "max",
    "field": "first_behavior"
  }
]

There is a maximum of 3 nested aggregations per request.
sort
Service Class Support

No Uber Class Support
body string FQL syntax string to sort bucket results.
  • _count - sort by document count
  • _term - sort by the string value alphabetically
Supports asc and desc using | format.

Example: _count|desc
time_zone
Service Class Support

No Uber Class Support
body string Time zone for bucket results.
type
Service Class Support

No Uber Class Support
body string Type of aggregation. Valid values include:
  • date_histogram - Aggregates counts on a specified time interval. Requires use of “interval” field.
  • date_range - Aggregates counts on custom defined date range buckets. Can include multiple ranges. (Similar to time series, but the bucket sizes are variable). Date formats to follow ISO 8601.
  • terms - Buckets alerts by the value of a specified field. For example, if field used is scenario, then alerts will be bucketed by the various alert scenario names.
  • range - Buckets alerts by specified (numeric) ranges of a specified field. For example, if doing a range aggregation on the max_severity field, the alerts will be counted by the specified ranges of severity.
  • cardinality - Returns the count of distinct values in a specified field.
  • max - Returns the maximum value of a specified field.
  • min - Returns the minimum value of a specified field.
  • avg - Returns the average value of the specified field.
  • sum - Returns the total sum of all values for the specified field.
  • percentiles - Returns the following percentiles for the specified field: 1, 5, 25, 50, 75, 95, 99.

Usage

Service class example (PEP8 syntax)
from falconpy import Detects

# Do not hardcode API credentials!
falcon = Detects(client_id=CLIENT_ID,
                 client_secret=CLIENT_SECRET
                 )

date_range = {
    "from": "string",
    "to": "string"
}
search_range = {
    "From": integer,
    "To": integer
}

response = falcon.get_aggregate_detects(date_ranges=[date_range],
                                        exclude="string",
                                        field="string",
                                        filter="string",
                                        from=integer,
                                        include="string",
                                        interval="string",
                                        max_doc_count=integer,
                                        min_doc_count=integer,
                                        missing="string",
                                        name="string",
                                        q="string",
                                        ranges=[search_range],
                                        size=integer,
                                        sort="string",
                                        time_zone="string",
                                        type="string"
                                        )
print(response)
Service class example (Operation ID syntax)
from falconpy import Detects

# Do not hardcode API credentials!
falcon = Detects(client_id=CLIENT_ID,
                 client_secret=CLIENT_SECRET
                 )

date_range = {
    "from": "string",
    "to": "string"
}
search_range = {
    "From": integer,
    "To": integer
}

response = falcon.GetAggregateDetects(date_ranges=[date_range],
                                      exclude="string",
                                      field="string",
                                      filter="string",
                                      from=integer,
                                      include="string",
                                      interval="string",
                                      max_doc_count=integer,
                                      min_doc_count=integer,
                                      missing="string",
                                      name="string",
                                      q="string",
                                      ranges=[search_range],
                                      size=integer,
                                      sort="string",
                                      time_zone="string",
                                      type="string"
                                      )
print(response)
Uber class example
from falconpy import APIHarnessV2

# Do not hardcode API credentials!
falcon = APIHarnessV2(client_id=CLIENT_ID,
                      client_secret=CLIENT_SECRET
                      )

BODY = [{
    "date_ranges": [
        {
            "from": "string",
            "to": "string"
        }
    ],
    "exclude": "string",
    "field": "string",
    "filter": "string",
    "from": integer,
    "include": "string",
    "interval": "string",
    "max_doc_count": integer,
    "min_doc_count": integer,
    "missing": "string",
    "name": "string",
    "q": "string",
    "ranges": [
        {
            "From": integer,
            "To": integer
        }
    ],
    "size": integer,
    "sort": "string",
    "sub_aggregates": [
        null
    ]
    "time_zone": "string",
    "type": "string"
}]

response = falcon.command("GetAggregateDetects", body=BODY)
print(response)

UpdateDetectsByIdsV2

Modify the state, assignee, and visibility of detections. You can update one or more attributes of one or more detections with a single request.

PEP8 method name

update_detects_by_ids

Endpoint

Method Route
PATCH /detects/entities/detects/v2

Content-Type

  • Consumes: application/json
  • Produces: application/json

Keyword Arguments

Name Service Uber Type Data type Description
assigned_to_uuid
Service Class Support

Uber Class Support
body string A user UID (Ex: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx) to assign the detection to.
body
Service Class Support

Uber Class Support
body dictionary Full body payload in JSON format.
comment
Service Class Support

Uber Class Support
body string Optional comment to add to the detection. Comments are displayed with the detection in Falcon and are usually used to provide context or notes for other Falcon users. A detection can have multiple comments over time.
ids
Service Class Support

Uber Class Support
body string or list of strings ID(s) of the detection to update, which you can find with theQueryDetects operation, the Falcon console, or the Streaming API.
new_behaviors_processed
Service Class Support

Uber Class Support
body string or list of strings New behaviors processed.
show_in_ui
Service Class Support

Uber Class Support
body boolean Boolean determining if this detection is displayed in the Falcon console.
  • true: This detection is displayed in Falcon
  • false: This detection is not displayed in Falcon. Most commonly used together with the status key's false_positive value.
status
Service Class Support

Uber Class Support
body string Current status of the detection.

Allowed values:
  • ignored
  • new
  • in_progress
  • true_positive
  • false_positive

Usage

Service class example (PEP8 syntax)
from falconpy import Detects

# Do not hardcode API credentials!
falcon = Detects(client_id=CLIENT_ID,
                 client_secret=CLIENT_SECRET
                 )

id_list = 'ID1,ID2,ID3'  # Can also pass a list here: ['ID1', 'ID2', 'ID3']

behaviors = 'B1,B2,B3'  # Can also pass a list here: ['B1', 'B2', 'B3']

response = falcon.update_detects_by_ids(assigned_to_uuid="string",
                                        comment="string",
                                        ids=id_list,
                                        new_behaviors_processed=behaviors,
                                        show_in_ui=boolean,
                                        status="string"
                                        )

print(response)
Service class example (Operation ID syntax)
from falconpy import Detects

# Do not hardcode API credentials!
falcon = Detects(client_id=CLIENT_ID,
                 client_secret=CLIENT_SECRET
                 )

id_list = 'ID1,ID2,ID3'  # Can also pass a list here: ['ID1', 'ID2', 'ID3']

response = falcon.UpdateDetectsByIdsV2(assigned_to_uuid="string",
                                       comment="string",
                                       ids=id_list,
                                       new_behaviors_processed=behaviors,
                                       show_in_ui=boolean,
                                       status="string"
                                       )

print(response)
Uber class example
from falconpy import APIHarnessV2

# Do not hardcode API credentials!
falcon = APIHarnessV2(client_id=CLIENT_ID,
                      client_secret=CLIENT_SECRET
                      )

id_list = ['ID1', 'ID2', 'ID3']

behaviors = ['B1','B2','B3']

BODY = {
    "assigned_to_uuid": "string",
    "comment": "string",
    "ids": id_list,
    "new_behaviors_processed": behaviors, 
    "show_in_ui": boolean,
    "status": "string"
}
response = falcon.command("UpdateDetectsByIdsV2", body=BODY)

print(response)

GetDetectSummaries

View information about detections

PEP8 method name

get_detect_summaries

Endpoint

Method Route
POST /detects/entities/summaries/GET/v1

Content-Type

  • Consumes: application/json
  • Produces: application/json

Keyword Arguments

Name Service Uber Type Data type Description
body
Service Class Support

Uber Class Support
body dictionary Full body payload in JSON format.
ids
Service Class Support

Uber Class Support
body string or list of strings ID(s) of the detections to retrieve. View key attributes of detections, including the associated host, disposition, objective/tactic/technique, adversary, and more.

Specify one or more detection IDs (max 1000 per request). Find detection IDs with the QueryDetects operation, the Falcon console, or the Streaming API.

Usage

In order to use this method, either a body keyword or the ids keyword must be provided.

Service class example (PEP8 syntax)
from falconpy import Detects

# Do not hardcode API credentials!
falcon = Detects(client_id=CLIENT_ID,
                 client_secret=CLIENT_SECRET
                 )

id_list = 'ID1,ID2,ID3'  # Can also pass a list here: ['ID1', 'ID2', 'ID3']

response = falcon.get_detect_summaries(ids=id_list)
print(response)
Service class example (Operation ID syntax)
from falconpy import Detects

# Do not hardcode API credentials!
falcon = Detects(client_id=CLIENT_ID,
                 client_secret=CLIENT_SECRET
                 )

id_list = 'ID1,ID2,ID3'  # Can also pass a list here: ['ID1', 'ID2', 'ID3']

response = falcon.GetDetectSummaries(ids=id_list)
print(response)
Uber class example
from falconpy import APIHarnessV2

# Do not hardcode API credentials!
falcon = APIHarnessV2(client_id=CLIENT_ID,
                      client_secret=CLIENT_SECRET
                      )

id_list = ['ID1', 'ID2', 'ID3']

BODY = {
    "ids": id_list
}

response = falcon.command("GetDetectSummaries", body=BODY)
print(response)

QueryDetects

Search for detection IDs that match a given query

PEP8 method name

query_detects

Endpoint

Method Route
GET /detects/queries/detects/v1

Content-Type

  • Produces: application/json

Keyword Arguments

Name Service Uber Type Data type Description
filter
Service Class Support

Uber Class Support
query string Filter detections using a query in Falcon Query Language (FQL) An asterisk wildcard * includes all results.

Complete list of available FQL filters.

More details regarding filters can be found in the documentation inside the Falcon console.
limit
Service Class Support

Uber Class Support
query integer The maximum number of detections to return in this response (default: 100; max: 9999). Use with the offset parameter to manage pagination of results.
offset
Service Class Support

Uber Class Support
query integer The first detection to return, where 0 is the latest detection. Use with the limit parameter to manage pagination of results.
parameters
Service Class Support

Uber Class Support
query dictionary Full query string parameters payload in JSON format.
q
Service Class Support

Uber Class Support
query string Search all detection metadata for the provided string
sort
Service Class Support

Uber Class Support
query string Sort detections using these options:
  • first_behavior: Timestamp of the first behavior associated with this detection
  • last_behavior: Timestamp of the last behavior associated with this detection
  • max_severity: Highest severity of the behaviors associated with this detection
  • max_confidence: Highest confidence of the behaviors associated with this detection
  • adversary_id: ID of the adversary associated with this detection, if any
  • devices.hostname: Hostname of the host where this detection was detected
Sort either asc (ascending) or desc (descending).

For example: last_behavior|asc
Available FQL Filters

The following tables detail acceptable values for the filter keyword described above. Filter options are broken out into four categories:

  • General
  • Behavioral
  • Devices
  • Miscellaneous
General
adversary_ids date_updated last_behavior max_severity_displayname status
assigned_to_name detection_id max_confidence seconds_to_resolved
cid first_behavior max_severity seconds_to_triaged
Behavioral - behaviors.filter

Example: behaviors.ioc_type

alleged_filetype md5 sha256
behavior_id objective tactic
cmdline parent_details.parent_cmdline technique
confidence parent_details.parent_md5 timestamp
contral_graph_id parent_details.parent_process_id triggering_process_id
device_id parent_details.parent_process_graph_id triggering_process_graph_id
filename parent_details.parent_sha256 user_id
ioc_source pattern_disposition user_name
ioc_type scenario
ioc_value severity
Devices - device.filter

Example: device.platform_name

agent_load_flags first_seen platform_name
agent_local_time hostname product_type
agent_version last_seen product_type_desc
bios_manufacturer local_ip release_group
bios_version mac_address reduced_functionality_mode
cid machine_domain serial_number
config_id_base major_version site_name
config_id_build minor_version status
config_id_platform modified_timestamp system_product_name
cpu_signature os_version system_manufacturer
device_id ou
external_ip platform_id
Miscellaneous
hostinfo.domain quarantined_files.id quarantined_files.sha256
hostinfo.active_directory_dn_display quarantined_files.paths quarantined_files.state

Usage

Service class example (PEP8 syntax)
from falconpy import Detects

# Do not hardcode API credentials!
falcon = Detects(client_id=CLIENT_ID,
                 client_secret=CLIENT_SECRET
                 )

response = falcon.query_detects(offset=integer,
                                limit=integer,
                                sort="string",
                                filter="string",
                                q="string"
                                )
print(response)
Service class example (Operation ID syntax)
from falconpy import Detects

# Do not hardcode API credentials!
falcon = Detects(client_id=CLIENT_ID,
                 client_secret=CLIENT_SECRET
                 )

response = falcon.QueryDetects(offset=integer,
                               limit=integer,
                               sort="string",
                               filter="string",
                               q="string"
                               )
print(response)
Uber class example
from falconpy import APIHarnessV2

# Do not hardcode API credentials!
falcon = APIHarnessV2(client_id=CLIENT_ID,
                      client_secret=CLIENT_SECRET
                      )

response = falcon.command("QueryDetects",
                          offset=integer,
                          limit=integer,
                          sort="string",
                          filter="string",
                          q="string"
                          )
print(response)

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