Corelight Network Sensors
Corelight network sensors are available as software or appliances. They use a specialized version of the open-source Zeek (f.k.a., Bro) framework to provide detailed insights into what is happening in your network. This rich source of data covers over thirty-five different protocols and hundreds of different log fields, making it a valuable resource for security operation teams — including Threat Hunters.
Configure Ingestion to Humio
Configuring a Corelight sensor to send data to Humio is effortless and quick. Once you have network traffic coming in through the monitoring port of the Corelight sensor, there are only a few things you need to do.
First, you'll need to create a repository in Humio just for Corelight. Then you'll have to configure Corelight to send data to Humio.
Preparations in Humio
You'll need to create a new repository in Humio to hold the Corelight data. If you're not sure how to do this, see the Create a Repository documentation page.
Once you've created a repository, from that target repository in the
Humio Interface, select the
Settings tab and then
Packages on the left. From there, choose
Marketplace and install the Humio Package for Corelight (i.e.,
corelight/sensor), as shown in the screenshot in Figure 1 below.
Figure 201. Preparations in Humio
When you select the Corelight package, it will describe what the package provides and other related information. Of most interest is that it will install the required corelight-json parser. And it will install some overview dashboards that you can edit later to suit your needs.
When it's finished installing, from the Corelight repository, go to
Settings tab. In the
Ingest section, click on the left (see Figure 2).
In the right panel, clickto create a new token. Be sure to assign it the corelight-json parser. You can see the results of doing this in Figure 2.
Figure 202. Corelight Ingest Tokens
Before leaving this page, click the copy icon (i.e., <i class="material-icons" style="font-size: 1em">content_copy</i>) for the Corelight token to copy it to your clipboard — or to save it temporarily elsewhere.
Now that you have a repository set up in Humio to receive data from Corelight, you're ready to configure Corelight.
To configure Corelight to send data to Humio, to the repository created in the previous section, you'll have to log into the Corelight management interface. Navigate to the Sensor menu and choose Export. From there, select Export to Splunk HEC. Despite the label, this is the preferred option for sending logs from Corelight to Humio.
You'll be presented with a screen asking for several setting values similar to the screenshot shown below in Figure 3.
Figure 203. Configure Corelight
For the first box, the HEC URL, enter your Humio service URL
appended with /api/v1/ingest/hec. For example, if you're using the
Humio EU Cloud, you would enter,
In the box labeled, HEC Token, paste in the ingest token you copied
earlier from the target repository above (see Figure 2). Then set
the Sourcetype Template to
$LOG, as shown in the
For the rest of the settings you can probably accept the defaults, initially. However, you may want to check those settings to ensure all of the logs you need are being sent to Humio — and that you're excluding what you don't want to send.
After a bit, the Corelight logs should be ingested into your Humio repository. Navigate to the Humio repository and view the Corelight dashboards to check data is coming in and is displayed as expected.
Corelight and Humio's integrated solution helps customers manage security threats and gain visibility across an organization's entire network. Humio and Corelight have a long established partnership. The Humio service is used for the Corelight@home program, which provides an easy way to use Corelight with a Raspberry Pi based software sensor.
For Corelight customers wishing to use Humio purely for their Corelight data, we have a unique pricing offer that provides unlimited ingest. Pricing is based on the size of Corelight sensor.
For more information on using Corelight with Humio, review these resources: