Question 530
When validating a security detection workflow, the team notes: The SOC finds an identical suspicious file hash on several endpoints and wants to know whether it represents a shared incident. Which action directly fixes the identified FortiAnalyzer workflow issue?
Explanation
Correct Answer
The underlying cause is: Hash equality identifies matching file content but does not alone establish when or how each endpoint obtained it. The correct response is: Group supported malware or endpoint logs by hash and correlate host, user, time and delivery method. Confirm by checking: The investigation identifies each affected host and the chronology of observed file detections.
Incorrect Answers
That intervention addresses domain indicator expiration after cleanup, where Historical indicator matches and current intelligence status can differ as feeds evolve; neither should silently replace the other. Here, the relevant failure is instead: Hash equality identifies matching file content but does not alone establish when or how each endpoint obtained it.
That intervention addresses fortiview source filter on reused rfc1918 ranges, where The same private IP can exist in multiple isolated networks, so source IP without ADOM, device or VDOM is ambiguous. In this question the necessary remedy is “Group supported malware or endpoint logs by hash and correlate host, user, time and delivery method”, which this alternative does not provide.
That intervention addresses fortiguard ioc ip match shared infrastructure, where An IP intelligence match is a lead for investigation and may not identify the specific hosted domain or malicious transaction. The observed condition is the SOC finds an identical suspicious file hash on several endpoints and wants to know whether it represents a shared incident; this mechanism addresses another problem.