Which type of rules can test against both log and flow data in QRadar?

The concept of Common Rules in IBM QRadar is essential for monitoring and alerting because these rules are designed to evaluate both log and flow data simultaneously. This dual capability allows for a more integrated approach to threat detection, as logs often contain valuable context about events, while flows can provide information about the behavior and interactions of network entities.

Common Rules utilize the flexibility of QRadar’s rule engine, enabling security analysts to create comprehensive logic that applies across a diverse range of data types. By leveraging both event and flow data, these rules can yield more accurate detections and enhance the understanding of incidents, allowing for a deeper analysis of security events.

This design effectively supports a unified security posture by correlating multiple data types, making it easier for security teams to identify potential threats and respond appropriately.