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CrowdStrike Falcon Intelligence

Collect logs from CrowdStrike Falcon Intelligence with Elastic Agent.

What is an Elastic integration?
Version
0.3.1 (View all)
Compatible Kibana version(s)
8.11.0 or higher
Supported Serverless project types

What's this?
Security
Observability
Subscription level
What's this?
Basic
Level of support
What's this?
Elastic

CrowdStrike Falcon Intelligence is a threat intelligence product that provides advanced cybersecurity insights to organizations. Leveraging machine learning and behavioural analytics, Falcon Intelligence delivers real-time threat data, enabling proactive threat detection and response. With a focus on actionable intelligence, it empowers businesses to stay ahead of cyber adversaries and enhance their overall security posture. This CrowdStrike Falcon Intelligence integration enables you to consume and analyze CrowdStrike Falcon Intelligence data within Elastic Security, including Intel Indicator and IOCs, providing you with visibility and context for your cloud environments within Elastic Security.

Data streams

The CrowdStrike Falcon Intelligence integration collects two types of data: IOC and Intel Indicator.

Both the endpoints are related to the threat intelligence. Intel Indicators provide information about a hash, particularly related to malware and threat types, while IOC provides information about the detection of an IPv4 address, including severity, platforms, and global application status.

Reference for CrowdStrike Falcon Intelligence APIs - https://falcon.crowdstrike.com/documentation/page/a2a7fc0e/crowdstrike-oauth2-based-apis. -> Go to the Accessing CrowdStrike API specification and find the API reference link for your cloud environment region.

NOTE: Your Base URL depends on your cloud environment region. For example, the US-2 cloud environment will have the base URL as https://falcon.us-2.crowdstrike.com.

Requirements

Elastic Agent must be installed. For more information, refer to the link here.

Installing and managing an Elastic Agent:

You have a few options for installing and managing an Elastic Agent:

With this approach, you install Elastic Agent and use Fleet in Kibana to define, configure, and manage your agents in a central location. We recommend using Fleet management because it makes the management and upgrade of your agents considerably easier.

Install Elastic Agent in standalone mode (advanced users):

With this approach, you install Elastic Agent and manually configure the agent locally on the system where it’s installed. You are responsible for managing and upgrading the agents. This approach is reserved for advanced users only.

Install Elastic Agent in a containerized environment:

You can run Elastic Agent inside a container, either with Fleet Server or standalone. Docker images for all versions of Elastic Agent are available from the Elastic Docker registry, and we provide deployment manifests for running on Kubernetes.

There are some minimum requirements for running Elastic Agent and for more information, refer to the link here.

The minimum kibana.version required is 8.11.0. This module has been tested against the CrowdStrike Falcon Intelligence API Version v1.

Setup

To collect data from CrowdStrike Falcon Intelligence, the following parameters from your CrowdStrike Falcon Intelligence instance are required:

  1. Client ID

  2. Client Secret

  3. Token url

  4. API Endpoint url

  5. Required scopes for each data stream :

    Data StreamScope
    Intel
    read:intel
    IOC
    read:iocs

Follow the documentation for enabling the scopes from the CrowdStrike console.

Enabling the integration in Elastic:

  1. In Kibana go to Management > Integrations
  2. In "Search for integrations" search bar, type CrowdStrike Falcon Intelligence
  3. Click on the "CrowdStrike Falcon Intelligence" integration from the search results.
  4. Click on the "Add CrowdStrike Falcon Intelligence" button to add the integration.
  5. Add all the required integration configuration parameters, such as Client ID, Client Secret, URL, and Token URL. For all data streams, these parameters must be provided in order to retrieve logs.
  6. Save the integration.

IoCs Expiration

The ingested IOCs expire after a certain duration. A separate Elastic Transform is created for Intel and IOC datasets to facilitate only active Indicators and IOCs, respectively, being available to the end users. Since we want to retain only valuable information and avoid duplicated data, the CrowdStrike Falcon Intelligence Elastic integration forces the intel indicators to rotate into a custom index called: logs-ti_crowdstrike_latest.dest_intel and forces the IOC logs to rotate into a custom index called: logs-ti_crowdstrike_latest.dest_ioc. Please, refer to this index in order to set alerts and so on.

Handling Orphaned IOCs

IOC expiration is set default to false in CrowdStrike console but user can set the expiration duration in using the admin console. Some CrowdStrike IOCs may never expire and will continue to stay in the latest destination index. To avoid any false positives from such orphaned IOCs, users are allowed to configure IOC Expiration Duration parameter for both the dataset Intel and IOC, respectively, while setting up the integration. This parameter deletes all data inside the destination index logs-ti_crowdstrike_latest.intel and logs-ti_crowdstrike_latest.ioc after this specified duration is reached. Users must pull entire feed instead of incremental feed when this expiration happens so that the IOCs get reset.

How it works

This is possible thanks to a transform rule installed along with the integration. The transform rule parses the data stream content that is pulled from CrowdStrike Falcon Intelligence and only adds new intel indicators.

Both the data stream and the latest index have applied expiration through ILM and a retention policy in the transform respectively.

Logs Reference

Intel

This is the Intel dataset.

Example

An example event for intel looks as following:

{
    "@timestamp": "2023-11-21T06:16:01.000Z",
    "agent": {
        "ephemeral_id": "b21c4b34-fd7e-4d94-8a0c-9197ae0af332",
        "id": "436e2e4c-333b-45e1-8138-f548a20e88a8",
        "name": "docker-fleet-agent",
        "type": "filebeat",
        "version": "8.11.0"
    },
    "data_stream": {
        "dataset": "ti_crowdstrike.intel",
        "namespace": "ep",
        "type": "logs"
    },
    "ecs": {
        "version": "8.11.0"
    },
    "elastic_agent": {
        "id": "436e2e4c-333b-45e1-8138-f548a20e88a8",
        "snapshot": false,
        "version": "8.11.0"
    },
    "event": {
        "agent_id_status": "verified",
        "category": [
            "threat"
        ],
        "dataset": "ti_crowdstrike.intel",
        "id": "hash_sha256_c98e1a7f563824cd448b47613743dcd1c853742b78f42b000192b83d",
        "ingested": "2024-01-30T12:30:43Z",
        "kind": "enrichment",
        "original": "{\"_marker\":\"17005473618d17ae6353d123235e4158c5c81f25f0\",\"actors\":[\"SALTYSPIDER\"],\"deleted\":false,\"domain_types\":[\"abc.com\"],\"id\":\"hash_sha256_c98e1a7f563824cd448b47613743dcd1c853742b78f42b000192b83d\",\"indicator\":\"c98e192bf71a7f97563824cd448b47613743dcd1c853742b78f42b000192b83d\",\"ip_address_types\":[\"81.2.69.192\"],\"kill_chains\":[\"Installation\",\"C2\"],\"labels\":[{\"created_on\":1700547356,\"last_valid_on\":1700547360,\"name\":\"MaliciousConfidence/High\"},{\"created_on\":1700547359,\"last_valid_on\":1700547359,\"name\":\"Malware/Mofksys\"},{\"created_on\":1700547359,\"last_valid_on\":1700547359,\"name\":\"ThreatType/Commodity\"},{\"created_on\":1700547359,\"last_valid_on\":1700547359,\"name\":\"ThreatType/CredentialHarvesting\"},{\"created_on\":1700547359,\"last_valid_on\":1700547359,\"name\":\"ThreatType/InformationStealer\"}],\"last_updated\":1700547361,\"malicious_confidence\":\"high\",\"malware_families\":[\"Mofksys\"],\"published_date\":1700547356,\"relations\":[{\"created_date\":1700547339,\"id\":\"domain.com.yy\",\"indicator\":\"domain.ds\",\"last_valid_date\":1700547339,\"type\":\"domain\"},{\"created_date\":1700547339,\"id\":\"domain.xx.yy\",\"indicator\":\"domain.xx.fd\",\"last_valid_date\":1700547339,\"type\":\"domain\"}],\"reports\":[\"reports\"],\"targets\":[\"abc\"],\"threat_types\":[\"Commodity\",\"CredentialHarvesting\",\"InformationStealer\"],\"type\":\"hash_sha256\",\"vulnerabilities\":[\"vuln\"]}",
        "type": [
            "indicator"
        ]
    },
    "file": {
        "hash": {
            "sha256": "c98e192bf71a7f97563824cd448b47613743dcd1c853742b78f42b000192b83d"
        }
    },
    "input": {
        "type": "cel"
    },
    "related": {
        "hash": [
            "c98e192bf71a7f97563824cd448b47613743dcd1c853742b78f42b000192b83d"
        ]
    },
    "tags": [
        "preserve_original_event",
        "preserve_duplicate_custom_fields",
        "forwarded",
        "ti_crowdstrike-intel"
    ],
    "threat": {
        "indicator": {
            "confidence": "High",
            "name": "c98e192bf71a7f97563824cd448b47613743dcd1c853742b78f42b000192b83d",
            "provider": "crowdstrike",
            "type": "file"
        }
    },
    "ti_crowdstrike": {
        "intel": {
            "_marker": "17005473618d17ae6353d123235e4158c5c81f25f0",
            "actors": [
                "SALTYSPIDER"
            ],
            "deleted": false,
            "deleted_at": "2023-11-21T11:16:01.000Z",
            "domain_types": [
                "abc.com"
            ],
            "expiration_duration": "5h",
            "id": "hash_sha256_c98e1a7f563824cd448b47613743dcd1c853742b78f42b000192b83d",
            "ip_address_types": [
                "81.2.69.192"
            ],
            "kill_chains": [
                "Installation",
                "C2"
            ],
            "labels": [
                {
                    "created_on": "2023-11-21T06:15:56.000Z",
                    "last_valid_on": "2023-11-21T06:16:00.000Z",
                    "name": "MaliciousConfidence/High"
                },
                {
                    "created_on": "2023-11-21T06:15:59.000Z",
                    "last_valid_on": "2023-11-21T06:15:59.000Z",
                    "name": "Malware/Mofksys"
                },
                {
                    "created_on": "2023-11-21T06:15:59.000Z",
                    "last_valid_on": "2023-11-21T06:15:59.000Z",
                    "name": "ThreatType/Commodity"
                },
                {
                    "created_on": "2023-11-21T06:15:59.000Z",
                    "last_valid_on": "2023-11-21T06:15:59.000Z",
                    "name": "ThreatType/CredentialHarvesting"
                },
                {
                    "created_on": "2023-11-21T06:15:59.000Z",
                    "last_valid_on": "2023-11-21T06:15:59.000Z",
                    "name": "ThreatType/InformationStealer"
                }
            ],
            "last_updated": "2023-11-21T06:16:01.000Z",
            "malicious_confidence": "high",
            "malware_families": [
                "Mofksys"
            ],
            "published_date": "2023-11-21T06:15:56.000Z",
            "relations": [
                {
                    "created_date": "2023-11-21T06:15:39.000Z",
                    "id": "domain.com.yy",
                    "indicator": "domain.ds",
                    "last_valid_date": "2023-11-21T06:15:39.000Z",
                    "type": "domain"
                },
                {
                    "created_date": "2023-11-21T06:15:39.000Z",
                    "id": "domain.xx.yy",
                    "indicator": "domain.xx.fd",
                    "last_valid_date": "2023-11-21T06:15:39.000Z",
                    "type": "domain"
                }
            ],
            "reports": [
                "reports"
            ],
            "targets": [
                "abc"
            ],
            "threat_types": [
                "Commodity",
                "CredentialHarvesting",
                "InformationStealer"
            ],
            "type": "hash_sha256",
            "value": "c98e192bf71a7f97563824cd448b47613743dcd1c853742b78f42b000192b83d",
            "vulnerabilities": [
                "vuln"
            ]
        }
    },
    "vulnerability": {
        "category": [
            "vuln"
        ]
    }
}

Exported fields

FieldDescriptionType
@timestamp
Event timestamp.
date
data_stream.dataset
Data stream dataset.
constant_keyword
data_stream.namespace
Data stream namespace.
constant_keyword
data_stream.type
Data stream type.
constant_keyword
event.dataset
Event dataset.
constant_keyword
event.module
Event module.
constant_keyword
input.type
Type of filebeat input.
keyword
labels.is_ioc_transform_source
Field indicating if its the transform source for supporting IOC expiration. This field is dropped from destination indices to facilitate easier filtering of indicators.
constant_keyword
log.offset
Log offset.
long
tags
User defined tags.
keyword
threat.feed.name
Display friendly feed name.
constant_keyword
ti_crowdstrike.intel._marker
A special marker associated with the Intel Indicator.
keyword
ti_crowdstrike.intel.actors
Information related to actors associated with the Intel Indicator.
keyword
ti_crowdstrike.intel.deleted
Indicates whether the Intel Indicator has been deleted.
boolean
ti_crowdstrike.intel.deleted_at
Date when IOC was deleted/expired.
date
ti_crowdstrike.intel.domain_types
Information related to domain types associated with the Intel Indicator.
keyword
ti_crowdstrike.intel.expiration_duration
keyword
ti_crowdstrike.intel.id
A unique identifier for the Intel Indicator.
keyword
ti_crowdstrike.intel.ip_address_types
Information related to IP address types associated with the Intel Indicator.
keyword
ti_crowdstrike.intel.kill_chains
Information related to kill chains associated with the Intel Indicator.
keyword
ti_crowdstrike.intel.labels.created_on
Timestamp indicating when the labels were created.
date
ti_crowdstrike.intel.labels.last_valid_on
Timestamp indicating when the labels were last valid.
date
ti_crowdstrike.intel.labels.name
The name of labels associated with the Intel Indicator.
keyword
ti_crowdstrike.intel.last_updated
Timestamp indicating when the Intel Indicator was last updated.
date
ti_crowdstrike.intel.malicious_confidence
Indicates the level of confidence that the Intel Indicator is malicious.
keyword
ti_crowdstrike.intel.malware_families
Information related to malware families associated with the Intel Indicator.
keyword
ti_crowdstrike.intel.published_date
Timestamp indicating when the Intel Indicator was published.
date
ti_crowdstrike.intel.relations.created_date
Create date of relation.
date
ti_crowdstrike.intel.relations.id
Id of the relation.
keyword
ti_crowdstrike.intel.relations.indicator
Indicator associated with the relation.
keyword
ti_crowdstrike.intel.relations.last_valid_date
Last valid date of relation.
date
ti_crowdstrike.intel.relations.type
Type of relation.
keyword
ti_crowdstrike.intel.reports
Information related to reports associated with the Intel Indicator.
keyword
ti_crowdstrike.intel.targets
Information related to targets associated with the Intel Indicator.
keyword
ti_crowdstrike.intel.threat_types
Information related to threat types associated with the Intel Indicator.
keyword
ti_crowdstrike.intel.type
The type of indicator, indicating it is a SHA256 hash.
keyword
ti_crowdstrike.intel.value
The specific value of the indicator.
keyword
ti_crowdstrike.intel.vulnerabilities
Information related to vulnerabilities associated with the Intel Indicator.
keyword

IOC

This is the IOC dataset.

Example

An example event for ioc looks as following:

{
    "@timestamp": "2023-11-01T10:22:23.106Z",
    "agent": {
        "ephemeral_id": "0bd5e12d-ab83-461a-827f-9343556f46b5",
        "id": "436e2e4c-333b-45e1-8138-f548a20e88a8",
        "name": "docker-fleet-agent",
        "type": "filebeat",
        "version": "8.11.0"
    },
    "data_stream": {
        "dataset": "ti_crowdstrike.ioc",
        "namespace": "ep",
        "type": "logs"
    },
    "ecs": {
        "version": "8.11.0"
    },
    "elastic_agent": {
        "id": "436e2e4c-333b-45e1-8138-f548a20e88a8",
        "snapshot": false,
        "version": "8.11.0"
    },
    "event": {
        "action": "detect-again",
        "agent_id_status": "verified",
        "category": [
            "threat"
        ],
        "dataset": "ti_crowdstrike.ioc",
        "id": "34874a88935860cf6yyfc856d6abb6f35a29d8c077195ed6291aa8373696b44",
        "ingested": "2024-01-30T12:31:49Z",
        "kind": "enrichment",
        "original": "{\"action\":\"detect again\",\"applied_globally\":true,\"created_by\":\"abc.it@example.com\",\"created_on\":\"2023-11-01T10:22:23.10607613Z\",\"deleted\":false,\"description\":\"IS-38887\",\"expired\":false,\"from_parent\":false,\"id\":\"34874a88935860cf6yyfc856d6abb6f35a29d8c077195ed6291aa8373696b44\",\"metadata\":{\"filename\":\"High_Serverity_Heuristic_Sandbox_Threat.docx\"},\"modified_by\":\"example.it@ex.com\",\"modified_on\":\"2023-11-01T10:22:23.10607613Z\",\"platforms\":[\"windows\",\"mac\",\"linux\"],\"severity\":\"critical\",\"tags\":[\"IS-38887\"],\"type\":\"ipv4\",\"value\":\"81.2.69.192\"}",
        "type": [
            "indicator"
        ]
    },
    "file": {
        "name": "High_Serverity_Heuristic_Sandbox_Threat.docx"
    },
    "input": {
        "type": "cel"
    },
    "related": {
        "ip": [
            "81.2.69.192"
        ],
        "user": [
            "example.it@ex.com"
        ]
    },
    "tags": [
        "preserve_original_event",
        "preserve_duplicate_custom_fields",
        "forwarded",
        "ti_crowdstrike-ioc"
    ],
    "threat": {
        "indicator": {
            "description": "IS-38887",
            "first_seen": "2023-11-01T10:22:23.106Z",
            "ip": "81.2.69.192",
            "modified_at": "2023-11-01T10:22:23.106Z",
            "name": "81.2.69.192",
            "provider": "crowdstrike",
            "type": "ipv4-addr"
        }
    },
    "ti_crowdstrike": {
        "ioc": {
            "action": "detect again",
            "applied_globally": true,
            "created_by": "abc.it@example.com",
            "created_on": "2023-11-01T10:22:23.106Z",
            "deleted": false,
            "deleted_at": "2023-11-01T15:22:23.106Z",
            "description": "IS-38887",
            "expiration_duration": "5h",
            "expired": false,
            "from_parent": false,
            "id": "34874a88935860cf6yyfc856d6abb6f35a29d8c077195ed6291aa8373696b44",
            "metadata": {
                "filename": "High_Serverity_Heuristic_Sandbox_Threat.docx"
            },
            "modified_by": "example.it@ex.com",
            "modified_on": "2023-11-01T10:22:23.106Z",
            "platforms": [
                "windows",
                "mac",
                "linux"
            ],
            "severity": "critical",
            "tags": [
                "IS-38887"
            ],
            "type": "ipv4",
            "value": "81.2.69.192"
        }
    },
    "user": {
        "domain": "example.com",
        "name": "abc.it"
    }
}

Exported fields

FieldDescriptionType
@timestamp
Event timestamp.
date
data_stream.dataset
Data stream dataset.
constant_keyword
data_stream.namespace
Data stream namespace.
constant_keyword
data_stream.type
Data stream type.
constant_keyword
event.dataset
Event dataset.
constant_keyword
event.module
Event module.
constant_keyword
input.type
Type of filebeat input.
keyword
labels.is_ioc_transform_source
Field indicating if its the transform source for supporting IOC expiration. This field is dropped from destination indices to facilitate easier filtering of indicators.
constant_keyword
log.offset
Log offset.
long
tags
User defined tags.
keyword
threat.feed.name
Display friendly feed name.
constant_keyword
ti_crowdstrike.ioc.action
Describes the action taken when the IOC is detected.
keyword
ti_crowdstrike.ioc.applied_globally
Indicates whether the IOC is applied globally.
boolean
ti_crowdstrike.ioc.created_by
Indicates the entity or user who created the IOC.
keyword
ti_crowdstrike.ioc.created_on
Timestamp indicating when the IOC was created.
date
ti_crowdstrike.ioc.deleted
Indicates whether the IOC has been deleted.
boolean
ti_crowdstrike.ioc.deleted_at
Date when IOC was deleted/expired.
date
ti_crowdstrike.ioc.description
A textual description associated with the IOC.
keyword
ti_crowdstrike.ioc.expiration_duration
keyword
ti_crowdstrike.ioc.expired
Indicates whether the IOC has expired.
boolean
ti_crowdstrike.ioc.from_parent
Indicates whether the IOC originated from a parent entity.
boolean
ti_crowdstrike.ioc.id
A unique identifier for the IOC.
keyword
ti_crowdstrike.ioc.metadata
Additional information or context about the IOC.
flattened
ti_crowdstrike.ioc.modified_by
Indicates the entity or user who last modified the IOC.
keyword
ti_crowdstrike.ioc.modified_on
Timestamp indicating when the IOC was last modified.
date
ti_crowdstrike.ioc.platforms
Specifies the platforms associated with the IOC.
keyword
ti_crowdstrike.ioc.severity
Indicates the severity level associated with the detection.
keyword
ti_crowdstrike.ioc.tags
Tags associated with the IOC.
keyword
ti_crowdstrike.ioc.type
The type of indicator.
keyword
ti_crowdstrike.ioc.value
The specific value of the indicator.
ip

Changelog

VersionDetailsKibana version(s)

0.3.1

Bug fix View pull request
Adding null checks to processors.

—

0.3.0

Enhancement View pull request
Improve error reporting for unsuccessful API queries.

—

0.2.0

Enhancement View pull request
Update Readme.

Enhancement View pull request
Remove convert processor for the ip_address_type field.

—

0.1.2

Enhancement View pull request
Changed owners

—

0.1.1

Bug fix View pull request
Prevent CEL evaluation failure when pagination is not present.

—

0.1.0

Enhancement View pull request
Initial release.

—

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