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NEW QUESTION # 73
Based on the show security policy rule would match all FTP traffic from the inside zone to the outside zone?
Answer: A
NEW QUESTION # 74
A secure healthcare network leverages Palo Alto Networks NGFWs to protect critical medical IoT devices (IoMT) like infusion pumps and patient monitors. These devices communicate using proprietary protocols over TCP. The security team has identified that some of these devices are attempting to establish undocumented SSH connections to external IP addresses, likely due to a compromise. The challenge is that the NGFW's 'Application-ID' correctly identifies the proprietary IoMT application, but it also identifies the rogue SSH connection from the same device . How can the security policy, leveraging IoT security profiles, be configured to allow the legitimate IoMT proprietary application while blocking the specific SSH connection from the compromised device without disrupting essential medical operations?
Answer: C
Explanation:
Option A is the most effective and precise solution. Palo Alto Networks' 'Application-ID' works by identifying applications regardless of port. If both the proprietary IoMT app and SSH are identified from the same device, the most direct way to block SSH while allowing the legitimate app is to create a specific 'deny' rule for SSH, targeted at the compromised device (or device group), and place it higher in the rulebase than any 'allow' rule for that device/group. Since firewall rules are processed top-down, the deny for SSH will be hit first. Option B is incorrect as it would block all legitimate IoMT functions. Option C (Anti-Spyware with custom signature) is a reactive measure for known threats; policy-based blocking is more direct for application control. Option D (Application Override) is a misapplication; it would force all traffic on the IoMT port to be seen as the IoMT app, potentially masking the rogue SSH if it uses the same port, or preventing accurate identification if SSH uses a different port. Application-ID is already correctly identifying both. Option E is a good general practice for 'least privilege' (allowing only known applications), but Option A specifically addresses the immediate need to block the identified SSH from the compromised device without affecting the legitimate IoMT app.
NEW QUESTION # 75
An analyst notices that a security rule intended to block a specific application is being bypassed.
Upon investigation, the analyst finds that the traffic is matching a rule higher in the list. Which tool provides a visual "Shadowing" check to identify rules that will never be hit?
Answer: D
Explanation:
Maintaining a clean and effective security policy is a primary objective for a Network Security Analyst. Over time, rulebases can become cluttered with redundant or "shadowed" rules. Policy Optimizer is the specialized tool within the PAN-OS web interface (and Strata Cloud Manager) designed to solve this problem.
The Policy Optimizer provides a "Rule Usage" and "No App-ID" view that highlights rules that have not seen traffic over a specific period or rules that are redundant. If a rule is "shadowed"-- meaning a more general rule above it is capturing all the intended traffic--the Policy Optimizer helps the analyst identify the conflict. This allows the analyst to either move the specific rule higher in the list or consolidate the two rules into one. By resolving these conflicts, the analyst ensures that the intended security posture is actually enforced and that the firewall's performance is optimized by reducing the number of rules the data plane must evaluate for every session.
NEW QUESTION # 76
A Palo Alto Networks firewall is configured with an Anti-Spyware profile that includes a custom signature designed to detect a specific command-and-control (C2) beacon. The signature is defined with a 'Context' of 'Server' and a 'Direction' of 'C2'. During a security incident investigation, you observe traffic from an internal compromised host initiating an outbound connection to a known C2 server, but the custom signature is not triggering. Which of the following could be potential reasons for the signature not triggering, assuming the C2 beacon itself matches the signature's pattern?
Answer: A,B,E
Explanation:
This is a multiple-response question. Let's analyze each option: A. The traffic is encrypted, and SSL decryption is not enabled or failing for this traffic. If the C2 beacon is within encrypted traffic, and SSL decryption isn't in place, the firewall cannot inspect the payload, thus the signature won't trigger. This is a very common reason for signatures to fail. B. The Anti-Spyware profile is not applied to the security policy allowing the outbound traffic. Security profiles, including Anti-Spyware, must be explicitly attached to security policies for them to be enforced. If it's missing, the signature won't be evaluated. C. The custom signature's 'Context' is 'Server', but the compromised host is acting as a 'Client' in the C2 connection. Custom signatures can be context-sensitive (Client, Server, or Both). If the signature is defined with 'Server' context, it will only inspect patterns from the server's side of the conversation. If the compromised host is initiating the C2 connection (acting as the client) and sending the beacon, a 'Server' context signature won't detect it. This is a common misconfiguration. D. The custom signature's 'Direction' is 'C2', but the C2 traffic is flowing from the C2 server to the compromised host. The 'Direction' of 'C2' means Command and Control, which typically refers to traffic initiated by the compromised host (client) to the C2 server. If the signature is for outbound C2, and the traffic observed is inbound, it might not match depending on the exact signature logic, but more critically, 'C2' direction implies outbound. The 'Client' vs. 'Server' context is usually more impactful here. E. The C2 server is using a non-standard port, and the firewall's application identification (App-ID) is incorrectly identifying the application. While App-ID can affect policy enforcement, custom signatures operate at a deeper level and can inspect traffic regardless of App-ID if the relevant security profile is applied. The signature is designed to match a pattern, not rely solely on App-ID for its detection logic. Incorrect App-ID might affect policy application, but not necessarily the signature's ability to match the byte pattern itself if the security profile is applied to the 'any' application or the correct identified application.
NEW QUESTION # 77
At which stage of the cyber-attack lifecycle would the attacker attach an infected PDF file to an email?
Answer: B
NEW QUESTION # 78
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