PCDRA Online Practice Questions and Answers

Correct Answer: AD

Explanation: To manually upgrade the Cortex XDR agents, you can use the Asset Management page or the Endpoint Administration page in the Cortex XDR console. On the Asset Management page, you can select one or more endpoints and click Actions > Upgrade Agent. On the Endpoint Administration page, you can select one or more agent versions and click Upgrade. You can also schedule automatic agent upgrades using the Agent Installations page. References: Asset Management Endpoint Administration Agent Installations

Correct Answer: C

Explanation: The report output shows the number of endpoints that have forensic inventory data collection enabled, which is a feature of Cortex XDR that allows the collection of detailed information about the endpoint's hardware, software, and network configuration. This feature helps analysts to investigate and respond to incidents more effectively by providing a comprehensive view of the endpoint's state and activity. Forensic inventory data collection can be enabled or disabled per policy in Cortex XDR. References : Forensic Inventory Data Collection Cortex XDR 3: Getting Started with Endpoint Protection

Correct Answer: C

The Host Insights module provides the best visibility to view vulnerabilities on your endpoints. The Host Insights module is an add-on feature for Cortex XDR that combines vulnerability management, application and system visibility, and a Search and Destroy feature to help you identify and contain threats. The vulnerability management feature allows you to scan your Windows endpoints for known vulnerabilities and missing patches, and view the results in the Cortex XDR console. You can also filter and sort the vulnerabilities by severity, CVSS score, CVE ID, or patch availability. The Host Insights module helps you reduce your exposure to threats and improve your security posture. References: Host Insights Vulnerability Management

Correct Answer: D

Explanation: The Live Terminal feature in Cortex XDR allows you to initiate a remote connection to an endpoint and perform various actions such as running commands, uploading and downloading files, and terminating processes. You can disable the ability to use the Live Terminal feature in Cortex XDR by configuring the Agent Settings Profile. The Agent Settings Profile defines the behavior and functionality of the Cortex XDR agent on the endpoint. You can create different profiles for different groups of endpoints and assign them accordingly. To disable the Live Terminal feature, you need to uncheck the Enable Live Terminal option in the Agent Settings Profile and save the changes. This will prevent the Cortex XDR agent from accepting any Live Terminal requests from the Cortex XDR management console. References: Live Terminal: This document explains how to use the Live Terminal feature to investigate and respond to security events on Windows endpoints. Agent Settings Profile: This document describes how to create and manage Agent Settings Profiles to define the behavior and functionality of the Cortex XDR agent on the endpoint.

Correct Answer: D

Explanation: The output shows the top 10 hosts with the most malware in the last 30 days, based on the Cortex XDR data. The output is sorted by the number of incidents, with the host with the most incidents at the top. The output also shows the number of alerts, the number of endpoints, and the percentage of endpoints for each host. The output is generated by using the ACC (Application Command Center) feature of Cortex XDR, which provides a graphical representation of the network activity and threat landscape. The ACC allows you to view and analyze various widgets, such as the Top 10 hosts with the most malware, the Top 10 applications by bandwidth, the Top 10 threats by count, and more . References: Use the ACC to Analyze Network Activity Top 10 Hosts with the Most Malware

Correct Answer: C

Explanation: The function that describes the removal of a specific file from its location on a local or removable drive to a protected folder to prevent the file from being executed is quarantine. Quarantine is a feature of Cortex XDR that allows you to isolate malicious or suspicious files from the endpoint and prevent them from running or spreading. You can quarantine files manually from the Cortex XDR console, or automatically based on the malware analysis profile or the remediation suggestions. When you quarantine a file, the Cortex XDR agent encrypts the file and moves it to a hidden folder under the agent installation directory. The file is also renamed with a random string and a .quarantine extension. You can view, restore, or delete the quarantined files from the Cortex XDR console. References: Quarantine Files Manage Quarantined Files

Correct Answer: D

Explanation: When investigating security events, the feature in Cortex XDR that is useful for reverting the changes on the endpoint is Remediation Suggestions. Remediation Suggestions are a feature of Cortex XDR that provide you with recommended actions to undo the effects of malicious activity on your endpoints. You can view the remediation suggestions for each alert or incident in the Cortex XDR console, and decide whether to apply them or not. Remediation Suggestions can help you restore the endpoint to its original state, remove malicious files or processes, or fix registry or system settings. Remediation Suggestions are based on the forensic data collected by the Cortex XDR agent and the analysis performed by Cortex XDR. References: Remediation Suggestions Apply Remediation Suggestions

Correct Answer: A

Explanation: To view the WildFire report in an incident, you need to go to the incident details page and look for the relevant key artifacts that are related to the WildFire analysis. A key artifact is a piece of evidence that is associated with an alert or an incident, such as a file hash, a registry key, an IP address,a domain name, or a full path. If a key artifact is related to a WildFire analysis, you will see a WildFire icon next to it, indicating that there is a WildFire report available for that artifact. You can click on the WildFire icon to view the report, which will show you the detailed information about the artifact, such as the verdict, the behavior, the severity, the signatures, and the screenshots12. Let's briefly discuss the other options to provide a comprehensive explanation:

B. under Response --> Action Center: This is not the correct answer. The Action Center is a feature that allows you to create and manage actions that you can perform on your endpoints, such as isolating, scanning, collecting files, or executing scripts. The Action Center does not show you the WildFire reports for the incidents, but it can help you to remediate the incidents by applying the appropriate actions3. C. under the gear icon --> Agent Audit Logs: This is not the correct answer. The Agent Audit Logs are logs that show you the activities and events that occurred on the Cortex XDR agents, such as installation, upgrade, connection, policy update, or prevention. The Agent Audit Logs do not show you the WildFire reports for the incidents, but they can help you to troubleshoot the agent issues or verify the agent status4. D. on the HUB page at apps.paloaltonetworks.com: This is not the correct answer. The HUB page is a web portal that allows you to access and manage your Palo Alto Networks applications, such as Cortex XDR, Cortex XSOAR, Prisma Cloud, or AutoFocus. The HUB page does not show you the WildFire reports for the incidents, but it can help you to navigate to the different applications or view the notifications and alerts5. In conclusion, to view the WildFire report in an incident, you need to go to the incident details page and look for the relevant key artifacts that are related to the WildFire analysis. By viewing the WildFire report, you can gain more insights and context about the incident and the artifact. References: View Incident Details View WildFire Reports Action Center Agent Audit Logs HUB

Correct Answer: A

Explanation: The File Search and Destroy feature is a capability of Cortex XDR that allows you to search for and delete malicious or unwanted files across your endpoints. You can use this feature to quickly respond to incidents, remediate

threats, and enforce compliance policies. To use the File Search andDestroy feature, you need to specify the file name and the file hash of the file you want to search for and delete. The file hash is a unique identifier of the file that is

generated by a cryptographic hash function. The file hash ensures that you are targeting the exact file you want, and not a file with a similar name or a different version. The File Search and Destroy feature supports the SHA256 hash type,

which is a secure hash algorithm that produces a 256-bit (32-byte) hash value. The SHA256 hash type is widely used for file integrity verification and digital signatures. The File Search and Destroy feature does not support other hash types,

such as AES256, MD5, or SHA1, which are either encryption algorithms or less secure hash algorithms. Therefore, the correct answer is A, SHA256 hash of the file1234

References:

File Search and Destroy

What is a File Hash?

SHA-2 - Wikipedia

When using the "File Search and Destroy" feature, which of the following search hash type is supported?

Correct Answer: B

Explanation: The correct answer is B, create Behavioral Threat Protection (BTP) rules to recognize and prevent the activity. BTP rules are a powerful feature of Cortex XDR that allow you to define custom rules to detect and block malicious behaviors on endpoints. You can use BTP rules to create indicators of compromise (IOCs) based on file attributes, registry keys, processes, network connections, and other criteria. By creating BTP rules, you can prevent the same malicious Word document from being opened by other users in your organization, even if the document has a different name or hash value. BTP rules are updated through content updates and can be managed from the Cortex XDR console. The other options are incorrect for the following reasons: A is incorrect because enabling DLL Protection on all endpoints is not a specific or effective way to prevent the malicious Word document. DLL Protection is a feature of Cortex XDR that prevents the loading of unsigned or untrusted DLLs by protected processes. However, this feature does not apply to Word documents or macros, and may cause false positives or compatibility issues with legitimate applications. C is incorrect because relying on Cortex to share IOCs with the Cyber Threat Alliance members is not a proactive or sufficient way to prevent the malicious Word document. The Cyber Threat Alliance is a group of cybersecurity vendors that share threat intelligence and best practices to improve their products and services. However, not all vendors are members of the alliance, and not all IOCs are shared or updated in a timely manner. Therefore, you cannot assume that other users in your organization are protected by the same IOCs as Cortex XDR. D is incorrect because doing nothing is not a responsible or secure way to prevent the malicious Word document. Even though Cortex XDR agent prevented the attempt to open the document on one endpoint, it does not mean that the document is no longer a threat. The document may still be circulating in your network or email system, and may be opened by other users who have different agent profiles or policies. Therefore, you should take steps to identify and block the document across your organization. References: Cortex XDR Agent Administrator Guide: Behavioral Threat Protection Cortex XDR Agent Administrator Guide: DLL Protection Palo Alto Networks: Cyber Threat Alliance