Question 80
Before a monitored change is approved, the SOC finds: The SOC sees repeated IPS logs for one signature from dozens of public source IPs and needs to determine if a coordinated campaign is under way. Which supported corrective step best meets the stated requirement?
Explanation
Correct Answer
The underlying cause is: A shared signature ID is not proof that every alert targets the same asset or represents the same attacker session. The correct response is: Group events by signature, target, source, action and time before comparing campaign characteristics. Confirm by checking: The analyst can identify which protected assets were targeted and which attempts were blocked or progressed.
Incorrect Answers
That intervention addresses traffic bytes versus session count, where Many short low-volume sessions can outnumber fewer high-volume sessions, so count and byte volume are distinct metrics. Here, the relevant failure is instead: A shared signature ID is not proof that every alert targets the same asset or represents the same attacker session.
That intervention addresses long-lived sessions and graph continuity, where Long-lived flows can contribute usage across report windows, and time aggregation does not necessarily correspond to new session creation. In this question the necessary remedy is “Group events by signature, target, source, action and time before comparing campaign characteristics”, which this alternative does not provide.
That intervention addresses ips signature versus exploitation evidence, where An IPS signature detection shows matched suspicious traffic but does not alone prove payload execution or compromise on the target. The observed condition is the SOC sees repeated IPS logs for one signature from dozens of public source IPs and needs to determine if a coordinated campaign is under way; this mechanism addresses another problem.