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NSE 5 - FortiAnalyzer 7.6 Analyst Exam Materials - Question #70 Discussion

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What happens when the indicator of compromise (IOC) engine on FortiAnalyzer finds web logs that match blocklisted IP addresses? (Choose one answer)

  • A. A new Infected entry is added for the corresponding endpoint under Compromised Hosts.
  • B. FortiAnalyzer runs a default playbook in the background that creates an incident alerting analysts.
  • C. The detection engine classifies those logs as Suspicious.
  • D. The endpoint is marked as Compromised and, optionally, can be quarantined.
Correct Answer: A

Brave-Dump Community Votes

Answer: A (2 votes) 50%
Answer: C (1 vote) 25%
Answer: D (1 vote) 25%

Community Explanations & Comments (4)

Anonymous User 8 months ago
Selected: C
should c
marcin 8 months ago
Selected: A
A. See page 130:
Infected: Indicates a real breach. FortiAnalyzer found matches of the blacklisted IPs or domain generation
algorithms (DGAs) in the web logs.
Anand Chavda 4 months ago
Selected: D
D
Anonymous User 4 months ago
Selected: A
The answer is A.
A new Infected entry is added for the corresponding endpoint under Compromised Hosts.
When the IOC engine on FortiAnalyzer detects web logs that match blocklisted IP addresses, it adds a new Infected entry for the corresponding endpoint under the Compromised Hosts section. This is the specific behavior triggered by a blocklisted IP match in web logs.
Ruling out the others:

B ❌ — FortiAnalyzer does not automatically run a default playbook in the background for IOC matches; playbooks need to be explicitly configured and triggered
C ❌ — Logs matching blocklisted IPs are classified as Infected, not "Suspicious" — Suspicious is a different classification level
D ❌ — The endpoint being marked as "Compromised" and quarantined is a possible action but requires additional configuration (e.g., a playbook or automation stitch); it is not the automatic default behavior of the IOC engine itself