Enrichment summary note

The following is an example of STIX note that is created and attached to the observable that is enriched, and to any created incidents

_images/enrichment_summary_note_1.png

In this example, an enrichment was run on a File observable, searching for a file name only. The file name was unique, and only a few results were returned. The highlighted Dropped: 0 indicates that no results were dropped (because the limit hits_abort_limit was met).

The meaning of all the fields in the summary table are as follows:

Enrichment summary table

Key

Value

Time

When the enrichment was run

Duration

The duration of the OpenSearch query

Hits returned

Number of alerts returned by the query

Total hits

The total number of matches

Max hits

Maximum number of results to return, as per limit

Dropped

Results dropped (Total hits - Max hits)

Search since

Time filter used, as per search_after

Include filter

Additional search filters used, as per include_match

Exclude filter

Additional search filters used, as per exclude_match

Connector v.

The connector version at enrichment time

The next table provides a summary of the alerts found:

Alerts overview table

Rule

The alert rule ID, with a link to the Wazuh instance rule overview

Level

The alert rule level

Count

Number of alerts of this rule ID (a + indicates an inaccurate number)

Earliest

The earliest alert of this rule ID (within the search constraints)

Latest

The latest alert of this rule ID (within the search constraints)

Description

The alert rule description (shortened to a common prefix string and displayed with “[…]” if the alerts with this rule ID had different descriptions)

_images/enrichment_summary_note_2.png

As opposed to the former example, in this run the search was for an IP address that returned a lot of hits. The limits put in place ensures that not too much noise is inserted into OpenCTI.

Since the number of alerts per rule ID is misleading when results are dropped, a + is shown in bold next to the alert count in Alerts overview.