Question 150
A regional SOC analyst is asked to resolve this problem: A custom malware handler generates events but they do not appear under the desired endpoint-oriented Event Monitor view. What preventive practice should be standardized for this FortiAnalyzer workflow?
Explanation
Correct Answer
This safeguard directly addresses event monitor tag view misclassification: Include tag and dashboard routing in event handler acceptance tests. The risk being prevented is: Event handlers apply classification tags used to group events into Event Monitor views; a rule can fire with incorrect tags. A safeguard aimed at another fault would not control this issue.
Incorrect Answers
An excessive correlation window can connect unrelated events that happen to share a hostname or indicator. “Review correlation windows against both false-positive history and expected attack timing” would remedy that alternative situation, but it would not correct the present issue: event handlers apply classification tags used to group events into Event Monitor views; a rule can fire with incorrect tags.
“Document sequence, grouping and expiration conditions when maintaining multi-stage detections” is the supported response when a simple event count does not establish the order or relationship of multiple steps required for an attack pattern. Here the decisive response is “Include tag and dashboard routing in event handler acceptance tests”, so that different intervention does not meet the stated requirement.
Alert severity configured without business impact or enforcement outcome may distort incident response priorities. “Periodically compare event severity with actual response outcomes and tune over- or under-escalating handlers” applies to that other condition. The reported evidence is a custom malware handler generates events but they do not appear under the desired endpoint-oriented Event Monitor view; this alternative would address the wrong dependency.