Falcon Exposure Management - Hosts

The CrowdStrike Falcon Exposure Management Hosts integration will download data about all entity_types that match the provided criteria. If no “entity_type” is specified, all known entities (that have a current IP address) will be listed.

CrowdStrike Falcon Exposure Management relies on endpoint agents and does not scheduled “network scans” to identify network entities. As a result, frequently downloading data from Falcon Exposure Management can provide near-realtime updates. If the ‘interval_hours’ is set to 0, the integration will attempt to download additional content each time the Corelight-update service runs. See Configuration settings

Once downloaded, the data will be used to create an Input Framework file that can be used by a Zeek script to generate new logs, or enrich existing logs, such as the known_hosts.log.

The input file will be published with any other input files from other integrations (if there are any). If “input” in enabled in the “push_content” settings, the file will automatically get pushed to the Fleet Manager policy and/or all sensors in the policy. See Push content settings for more details.

Settings

crowdstrike_exposure_mgmt_hosts:
  enabled: false
  interval_hours: 0
  entity_type: ""             # managed, unmanaged, or unsupported
  filename: hosts_data.tsv

Input file

The input file contains the following information (if it’s available):

  • IP address (required)

  • MAC address

  • Hostname

  • Host Unique ID

  • OS version

  • Endpoint status

  • Machine domain

  • Additional description

  • Customer ID

  • Endpoint information source (required)

The following is a sample input file created by this integration, using tab-separated values.

#fields  ip     mac                hostname  host_uid                             os_version    status        machine_domain  cid                               desc                 source
192.168.56.103  00-50-56-A3-B1-C2  WEF       ced83f0c26493b638086fdc7b8b2c01d     -             managed       -               e29b670f12d342e3bcc7170a288a0xxx  Exposure Management  CrowdStrike
10.21.0.102     00-50-56-A1-B1-C4  DC        c53fdc3178ba36759c471d6b6655e324     -             managed       -               e29b670f12d342e3bcc7170a288a0xxx  Exposure Management  CrowdStrike
192.168.56.104  00-50-56-A2-B1-C2  WIN10     abb6c27309cf3730bb73e8cfd732d838     Windows 10    managed       lab.local       e29b670f12d342e3bcc7170a288a0xxx  Exposure Management  CrowdStrike
192.168.1.155   92-91-E0-3E-66-A8  ss2oh     9caa11e26d1f371797e73e9b9199d481     -             managed       -               e29b670f12d342e3bcc7170a288a0xxx  Exposure Management  CrowdStrike
192.168.1.120   00-0C-29-AB-75-05  fleet     81f845fe72ae32168aba94707fc8a49f     -             managed       -               e29b670f12d342e3bcc7170a288a0xxx  Exposure Management  CrowdStrike
192.168.12.1    -                  -         613cd0e8a671350e83dec735143db1e0     -             unsupported   -               e29b670f12d342e3bcc7170a288a0xxx  Exposure Management  CrowdStrike
192.168.12.210  -                  -         5f67453d7e833b0f82ac1d7a5788142a     -             unmanaged     -               e29b670f12d342e3bcc7170a288a0xxx  Exposure Management  CrowdStrike
192.168.12.222  -                  -         5abcec34b3443f3cb7fe17c4f7100e02     -             unmanaged     -               e29b670f12d342e3bcc7170a288a0xxx  Exposure Management  CrowdStrike
192.168.12.212  00-50-56-A1-1F-07  skynet    439293445449716808dec735143db1e9     Ubuntu 22.04  managed       -               e29b670f12d342e3bcc7170a288a0xxx  Exposure Management  CrowdStrike

Attention

The CrowdStrike Exposure Management integrations only create Input Framework files to be loaded on sensors. Additional Zeek scripts are required to be loaded on the sensors to use this data. If you enable these integrations, Corelight-update will upload the input files to the sensor. But if the desired script isn’t available on the sensor, the input data won’t be used.

See Zeek package management for information about using Corelight-update to manage Zeek package bundles.

See Zeek-Endpoint-Enrichment for an example of a Zeek package that can use this data.