NSE7 Advanced Threat Protection — 50 Questions

Question 1

A company is deploying FortiGate with Advanced Threat Protection (ATP) and wants to block advanced malware that uses encrypted C2 communications. Which security profile should be configured to perform SSL inspection and detect malicious traffic?

Accepted Answer

Antivirus profile with SSL inspection. Option B is correct because an Antivirus profile with SSL inspection enabled is required to decrypt encrypted C2 (command-and-control) traffic so that FortiGate can inspect the payload for malware signatures, heuristics, and behavioral patterns. Without SSL inspection, the ATP engine cannot see inside the encrypted tunnel, rendering the antivirus and other security profiles ineffective against encrypted C2 communications.

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Data Leak Prevention profile

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Web Filtering profile

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Intrusion Prevention profile

Question 2

A network administrator notices that several endpoints are infected with ransomware despite having FortiGate ATP enabled. The logs show that the files were downloaded over HTTPS, and the antivirus profile did not detect them. What is the most likely reason?

Accepted Answer

SSL inspection was not enabled on the antivirus profile. FortiGate ATP's antivirus engine cannot inspect encrypted HTTPS traffic unless SSL inspection is explicitly enabled on the antivirus profile. Without SSL inspection, the antivirus profile only sees encrypted payloads and cannot match file signatures or heuristics, allowing ransomware to pass undetected. The logs confirm files were downloaded over HTTPS, making this the most likely root cause.

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Application control profile blocked the download

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FortiSandbox was not configured to analyze the files

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IPS signature database was outdated

Question 3

A security engineer is troubleshooting a scenario where FortiGate is not blocking a known malicious URL categorized as 'Malware'. The web filtering profile is configured with 'monitor all' for the Malware category. What change should be made to block the URL?

Accepted Answer

Change the action for Malware category from 'monitor' to 'block' in the web filter profile. The web filtering profile currently has the Malware category set to 'monitor all', which logs but does not block traffic. To block the URL, the action must be changed from 'monitor' to 'block' within the same web filter profile. This directly enforces the blocking action for all URLs categorized as Malware, including the known malicious URL.

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Configure traffic shaping to rate limit the URL

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Add a static URL filter with the exact URL and action 'block'

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Enable DNS filter with botnet C2 domain blocking

Question 4

A company wants to detect and block phishing emails that contain malicious links. Which FortiGate security profile should be used?

Accepted Answer

Email Filtering profile. Option D is correct because FortiGate's Email Filtering profile is specifically designed to inspect SMTP, POP3, and IMAP traffic for phishing indicators, including malicious URLs in email bodies and attachments. It can block or quarantine emails based on URL reputation, sender authentication (SPF/DKIM/DMARC), and content analysis, directly addressing the requirement to detect and block phishing emails with malicious links.

Answer

Antivirus profile

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Web Filtering profile

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Data Leak Prevention profile

Question 5

A FortiGate administrator receives alerts about a device communicating with a known botnet C2 server. The traffic is encrypted with TLS. Which ATP feature is most effective to block this communication?

Accepted Answer

DNS Filter with botnet C2 domain blocking. DNS Filter with botnet C2 domain blocking is the most effective because it proactively prevents the initial DNS resolution of the botnet's command-and-control domain, stopping the TLS handshake before it even begins. Since the traffic is encrypted with TLS, other security mechanisms like application control or IPS would require decryption to inspect the payload, which may not be feasible or configured. DNS Filter operates at Layer 7 without needing to decrypt the traffic, directly blocking the domain lookup based on FortiGuard's real-time threat intelligence.

Answer

Application control to block the C2 application

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Antivirus profile with SSL inspection

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IPS signature for botnet activity

Question 6

Which TWO features are part of FortiGate's Advanced Threat Protection (ATP) suite?

Accepted Answer

FortiGuard Antivirus. FortiGate's Advanced Threat Protection (ATP) suite is designed to detect and block advanced, unknown, and zero-day threats. FortiGuard Antivirus (C) is a core ATP component that uses signature-based and heuristics-based scanning to detect known malware at the gateway. FortiSandbox (D) extends this by detonating suspicious files in a virtual environment to identify unknown threats, making both integral to the ATP suite.

Answer

Data Leak Prevention (DLP)

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SSL Inspection

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Intrusion Prevention System (IPS)

Question 7

Which THREE actions should be taken to optimize FortiGate ATP performance while maintaining security?

Accepted Answer

Implement allow lists for trusted IP addresses to bypass scanning. Implementing allow lists for trusted IP addresses to bypass scanning (Option A) reduces unnecessary processing of traffic that is known to be safe, thereby optimizing FortiGate ATP performance without compromising security. This approach leverages the FortiGate's ability to exempt trusted sources from deep inspection, which lowers CPU and memory load while maintaining protection for untrusted traffic.

Answer

Disable unnecessary security profiles to reduce CPU load

Answer

Enable proxy-based inspection for all traffic

Question 8

Refer to the exhibit. An administrator notices that some malware files are not being detected by FortiGate. The antivirus profile uses flow-based scanning with FortiSandbox disabled. What is the most likely reason for missed detections?

Accepted Answer

FortiSandbox inline-scan is disabled, so unknown malware is not analyzed. Flow-based scanning inspects files as they traverse the firewall, but it relies on signatures and heuristics for detection. Without FortiSandbox inline-scan enabled, unknown or zero-day malware that does not match existing signatures will not be sent to the sandbox for behavioral analysis, so it can pass undetected. Option B correctly identifies that disabling FortiSandbox removes the ability to analyze unknown threats, which is the most likely reason for missed detections.

Answer

Flow-based scanning is less thorough than proxy-based

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Quarantine is enabled, which causes files to be dropped before scanning

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The antivirus profile is not applied to the firewall policy

Question 9

Refer to the exhibit. A user reports that accessing a legitimate HTTPS website is blocked. The FortiGate logs show that the connection was denied by the antivirus profile. What is the most likely cause?

Accepted Answer

The antivirus profile detected a false positive in the encrypted traffic. Option A is correct because the antivirus (AV) profile on FortiGate performs deep inspection of HTTPS traffic by decrypting it, scanning the content, and re-encrypting it. If the AV signature database contains a false positive for a legitimate website's content (e.g., a benign JavaScript file matching a malware signature), the connection will be denied. The log explicitly states the denial was by the AV profile, not by any other security profile, making a false positive in encrypted traffic the most likely cause.

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The application list blocked the HTTPS application

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The IPS profile blocked a vulnerability in the website

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The protocol options profile blocked the SSL handshake

Question 10

A large enterprise uses FortiGate as their perimeter firewall with ATP features enabled. They have a mix of internal users and remote VPN users. Recently, several remote users reported that their machines became infected with ransomware after connecting to the VPN. The IT team suspects that the ransomware entered through the VPN tunnel. The FortiGate has an antivirus profile applied to the VPN policy with SSL inspection enabled for all traffic. However, the logs show that no malware was detected. Upon investigation, the team finds that the remote users' machines are not managed by the company and do not have any endpoint protection. The ransomware was delivered via a spear-phishing email that the users opened on their remote machines. The email traffic passed through the VPN tunnel to the corporate mail server first, then back to the user. The FortiGate antivirus profile is configured to scan SMTP traffic but the email was sent from an external source to the corporate mail server, and the mail server uses STARTTLS to receive emails. The FortiGate does not perform SSL inspection on the SMTP traffic because the SMTP service is not included in the SSL inspection profile. What action should the administrator take to prevent this in the future?

Accepted Answer

Add SMTP to the SSL inspection profile to decrypt and scan email traffic. Option B is correct because the FortiGate's antivirus profile is configured to scan SMTP traffic, but the email was encrypted via STARTTLS, and SMTP is not included in the SSL inspection profile. By adding SMTP to the SSL inspection profile, the FortiGate can decrypt the SMTP traffic, allowing the antivirus engine to inspect the email content for malware, including ransomware delivered via spear-phishing.

Answer

Disable STARTTLS on the corporate mail server to force plaintext SMTP

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Require remote users to install endpoint protection with FortiClient

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Block all SMTP traffic from remote VPN users

Question 11

Drag and drop the steps to configure OSPF on a FortiGate firewall into the correct order.

Question 12

Match each FortiGate security profile to its category.

Question 13

A network admin configures FortiGate to submit files to FortiSandbox for analysis. After submission, the FortiGate logs show that files are being sent but no verdict is returned. The FortiSandbox is reachable and licensed. What is the most likely cause?

Accepted Answer

The FortiGate does not have a FortiGuard Security Rating subscription. Option C is correct because FortiGate requires a valid FortiGuard Security Rating subscription to receive verdicts from FortiSandbox. Without this subscription, the FortiGate can submit files and see them as sent in logs, but it cannot process the returned verdicts, resulting in no action taken on the files. The Security Rating subscription enables the communication channel for verdict retrieval, distinct from the basic FortiSandbox license.

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The FortiGate is using proxy-based inspection instead of flow-based

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The FortiSandbox server's IP is not added to the FortiGate's trusted hosts

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The antivirus profile is set to block without scanning

Question 14

An organization wants to protect against unknown malware by using machine learning on FortiGate. Which antivirus setting should be enabled to achieve this?

Accepted Answer

Enable 'Machine Learning Engine' in the antivirus profile. Option C is correct because the 'Machine Learning Engine' in the antivirus profile uses on-device machine learning models to detect unknown malware based on file characteristics, without requiring signature updates. This provides proactive protection against zero-day threats directly on the FortiGate, aligning with the requirement to protect against unknown malware using machine learning.

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Enable 'Outbreak Prevention' under FortiGuard settings

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Set 'av-engine' to 'flow' under system settings

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Enable 'FortiSandbox inline scanning' in the antivirus profile

Question 15

A FortiGate administrator wants to block a custom protocol anomaly where a client sends an HTTP request with a malformed header containing a null byte. Which advanced IPS feature should be used?

Accepted Answer

Enable Protocol Anomaly Detection in the IPS sensor. Protocol Anomaly Detection in the IPS sensor is designed to identify deviations from standard protocol behavior, such as malformed headers or null bytes in HTTP requests. This feature inspects traffic for known protocol violations without requiring custom signatures, making it the correct choice for blocking a null byte anomaly in HTTP headers.

Answer

Create a custom IPS signature to match the null byte pattern

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Enable 'Outbreak Prevention' in the IPS sensor

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Use the 'http-policy' setting in the WAF profile

Question 16

What is the primary purpose of Content Disarm and Reconstruction (CDR) in FortiGate's antivirus features?

Accepted Answer

To remove potentially malicious content from documents and rebuild them as safe files. Content Disarm and Reconstruction (CDR) is designed to remove active or potentially malicious content—such as macros, scripts, embedded objects, and OLE links—from documents (e.g., Office files, PDFs) and then reconstruct them as sanitized, safe versions. This approach prevents threats like macro-based malware or exploit-laden attachments from reaching users, even if the file contains previously unknown (zero-day) payloads, by stripping the dangerous components rather than relying solely on signature-based detection.

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To convert files into PDF format for safer viewing

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To detect zero-day malware using sandboxing

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To block all files containing macros

Question 17

An organization uses FortiMail and wants to validate that incoming emails are from legitimate senders by checking the sender's domain against a published policy. Which two email authentication mechanisms can FortiMail use? (Choose two.)

Accepted Answer

SPF and DKIM. FortiMail can use SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) to validate that incoming emails originate from legitimate senders by checking the sender's domain against a published policy. SPF verifies that the sending IP address is authorized by the domain's DNS TXT record, while DKIM uses a digital signature in the email header that can be validated against a public key published in the sender's DNS. Both mechanisms allow FortiMail to authenticate the sender's domain before accepting the message.

Answer

DKIM and DMARC

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STARTTLS and SPF

Answer

DMARC and SPF

Question 18

A FortiGate admin runs 'diagnose ips anomaly list' and sees many 'tcp_src_session' events from a single internal IP. The admin suspects a scanning attack. What action should be taken to block this traffic without affecting legitimate traffic?

Accepted Answer

Create a custom IPS signature to detect and block the scanning pattern. Option B is correct because creating a custom IPS signature allows you to define specific patterns (e.g., multiple TCP SYN packets to different ports from the same source) that match scanning behavior, and then set the action to 'block'. This granular approach blocks only the malicious scanning traffic while permitting legitimate traffic from the same IP, unlike a blanket IP block or a global anomaly action that could impact normal sessions.

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Create a firewall rule to block the IP address entirely

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Enable 'tcp_src_session' anomaly action to 'block' in the IPS sensor

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Use a WAF profile to block the IP based on rate

Question 19

What is the primary function of FortiDeceptor in a network security architecture?

Accepted Answer

To lure attackers into interacting with decoys and generate alerts. FortiDeceptor is a deception-based threat detection solution that deploys decoys (fake assets) across the network to lure attackers. When an attacker interacts with a decoy, FortiDeceptor generates a high-fidelity alert, enabling early detection of lateral movement or reconnaissance without relying on signatures.

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To provide network access control for endpoints

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To aggregate logs from multiple security devices

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To detect and block malware at the endpoint

Question 20

An administrator configures an automation stitch on FortiGate to automatically block an IP address when a specific IPS signature triggers. What must be configured as the trigger and action?

Accepted Answer

Trigger: 'Event Log' with filter for the IPS signature; Action: 'Add IP to Blocklist'. Option A is correct because an automation stitch in FortiGate requires a trigger that defines the event that starts the automation, and an action that defines what happens when the trigger fires. For automatically blocking an IP when a specific IPS signature triggers, the trigger must be 'Event Log' with a filter for that IPS signature, and the action must be 'Add IP to Blocklist', which directly adds the source IP to the FortiGate's blocklist (banned IP list). This combination ensures that when the IPS signature is logged, the stitch extracts the source IP and applies a block.

Answer

Trigger: 'Incoming Webhook'; Action: 'CLI Script'

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Trigger: 'FortiOS CLI'; Action: 'Alert Email'

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Trigger: 'Schedule'; Action: 'Banned IP'