What action is triggered if a process matches a custom IOA rule?

When a process matches a custom Indicator of Attack (IOA) rule, the relevant action taken is that a detection for each matching rule is registered. This means that the system recognizes the behavior characteristic defined in the custom IOA rule and logs this event. The purpose of registering detections is to alert administrators about potentially malicious activity that aligns with the established parameters of the IOA, enabling them to take further action to investigate or mitigate any threats.

This approach ensures that the security system can monitor for and respond to specific behaviors indicative of an attack, allowing for informed decisions based on the gathered data. The focus on detections highlights the proactive stance of the CrowdStrike platform in identifying and addressing threats in real-time.

In contrast, the other options would not align with how CrowdStrike processes IOA matches. For instance, permanently blocking network access or rebooting the system are not standard responses tied to IOA rule matches and do not typically facilitate ongoing monitoring or threat management. Additionally, disabling the policy would undermine the purpose of having custom IOA rules in place for threat detection.