- Get Started with Correlation Rules
- Create Correlation Rules
- Manage Correlation Rules
- View Correlation Rules Metrics
When you create a correlation rule, you can toggle Group by Field on for a sequence. The Group by Field functionality groups the query results by the fields you select and creates subsets of events. The rule evaluates its conditions against each subset, and you can also suppress the rule based on a subset of events.
Each subset represents a unique combination of the fields you select. For example, let's say you select src_ip and email_address as the fields you're using for the Group by Field functionality, and the rule is evaluating the following events:
Event | src_ip | email_address |
|---|---|---|
Event 1 | 1.1.1.1 | |
Event 2 | 1.1.1.1 | |
Event 3 | 1.1.1.1 | |
Event 4 | 2.2.2.2 | |
Event 5 | 2.2.2.2 | |
Event 6 | 2.2.2.2 | |
Event 7 | 3.3.3.3 | |
Event 8 | 3.3.3.3 | |
Event 9 | 3.3.3.3 |
Using the Group by Field functionality with the src_ip and emaiL_address fields, the rule groups the events into the following subsets:
Subset | src_ip | email_address | Number of Events |
|---|---|---|---|
Subset 1 | 1.1.1.1 | 3 | |
Subset 2 | 2.2.2.2 | 3 | |
Subset 3 | 3.3.3.3 | 3 |