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NEW QUESTION # 27
What is by far the most common tactic used by ransomware to shut down a victim's operation?
- A. preventing the victim from being able to access APIs to cripple infrastructure
- B. encrypting certain files to prevent access by the victim
- C. restricting access to administrative accounts to the victim
- D. denying traffic out of the victims network until payment is received
Answer: B
Explanation:
Ransomware is a type of malicious software, or malware, that encrypts certain files or data on the victim's system or network and prevents them from accessing their data until they pay a ransom. This is by far the most common tactic used by ransomware to shut down a victim's operation, as it can cause costly disruptions, data loss, and reputational damage. Ransomware can affect individual users, businesses, and organizations of all kinds. Ransomware can spread through various methods, such as phishing emails, malicious attachments, compromised websites, or network vulnerabilities. Some ransomware variants can also self-propagate and infect other devices or networks. Ransomware authors typically demand payment in cryptocurrency or other untraceable methods, and may threaten to delete or expose the encrypted data if the ransom is not paid within a certain time frame. However, paying the ransom does not guarantee that the files will be decrypted or that the attackers will not target the victim again. Therefore, the best way to protect against ransomware is to prevent infection in the first place, and to have a backup of the data in case of an attack1234 Reference:
What is Ransomware? | How to Protect Against Ransomware in 2023
Ransomware - Wikipedia
What is ransomware? | Ransomware meaning | Cloudflare
[What Is Ransomware? | Ransomware.org]
[Ransomware - FBI]
NEW QUESTION # 28
Which type of IOC can you define in Cortex XDR?
- A. Destination IP Address: Destination
- B. Source port
- C. Destination IP Address
- D. Source IP Address
Answer: C
Explanation:
Cortex XDR allows you to define IOC rules based on various types of indicators of compromise (IOC) that you can use to detect and respond to threats in your network. One of the types of IOC that you can define in Cortex XDR is destination IP address, which is the IP address of the remote host that a local endpoint is communicating with. You can use this type of IOC to identify malicious network activity, such as connections to command and control servers, phishing sites, or malware distribution hosts. You can also specify the direction of the network traffic (inbound or outbound) and the protocol (TCP or UDP) for the destination IP address IOC. Reference:
Cortex XDR documentation portal
Is there a possibility to create an IOC list to employ it in a query?
Cortex XDR Datasheet
NEW QUESTION # 29
The Cortex XDR console has triggered an incident, blocking a vitally important piece of software in your organization that is known to be benign. Which of the following options would prevent Cortex XDR from blocking this software in the future, for all endpoints in your organization?
- A. Create an individual alert exclusion.
- B. Create a global exception.
- C. Create an endpoint-specific exception.
- D. Create a global inclusion.
Answer: B
Explanation:
A global exception is a rule that allows you to exclude specific files, processes, or behaviors from being blocked or detected by Cortex XDR. A global exception applies to all endpoints in your organization that are protected by Cortex XDR. Creating a global exception for a vitally important piece of software that is known to be benign would prevent Cortex XDR from blocking this software in the future, for all endpoints in your organization.
To create a global exception, you need to follow these steps:
In the Cortex XDR management console, go to Policy Management > Exceptions and click Add Exception.
Select the Global Exception option and click Next.
Enter a name and description for the exception and click Next.
Select the type of exception you want to create, such as file, process, or behavior, and click Next.
Specify the criteria for the exception, such as file name, hash, path, process name, command line, or behavior name, and click Next.
Review the summary of the exception and click Finish.
Reference:
Create Global Exceptions: This document explains how to create global exceptions to exclude specific files, processes, or behaviors from being blocked or detected by Cortex XDR.
Exceptions Overview: This document provides an overview of exceptions and how they can be used to fine-tune the Cortex XDR security policy.
NEW QUESTION # 30
Cortex XDR is deployed in the enterprise and you notice a cobalt strike attack via an ongoing supply chain compromise was prevented on 1 server. What steps can you take to ensure the same protection is extended to all your servers?
- A. Enable Behavioral Threat Protection (BTP) with cytool to prevent the attack from spreading.
- B. Conduct a thorough Endpoint Malware scan.
- C. Create lOCs of the malicious files you have found to prevent their execution.
- D. Enable DLL Protection on all servers but there might be some false positives.
Answer: C
Explanation:
The best step to ensure the same protection is extended to all your servers is to create indicators of compromise (IOCs) of the malicious files you have found to prevent their execution. IOCs are pieces of information that indicate a potential threat or compromise on an endpoint, such as file hashes, IP addresses, domain names, or registry keys. You can create IOCs in Cortex XDR to block or alert on any file or network activity that matches the IOCs. By creating IOCs of the malicious files involved in the cobalt strike attack, you can prevent them from running or spreading on any of your servers.
The other options are not the best steps for the following reasons:
A is not the best step because conducting a thorough Endpoint Malware scan may not detect or prevent the cobalt strike attack if the malicious files are obfuscated, encrypted, or hidden. Endpoint Malware scan is a feature of Cortex XDR that allows you to scan endpoints for known malware and quarantine any malicious files found. However, Endpoint Malware scan may not be effective against unknown or advanced threats that use evasion techniques to avoid detection.
B is not the best step because enabling DLL Protection on all servers may cause some false positives and disrupt legitimate applications. DLL Protection is a feature of Cortex XDR that allows you to block or alert on any DLL loading activity that matches certain criteria, such as unsigned DLLs, DLLs loaded from network locations, or DLLs loaded by specific processes. However, DLL Protection may also block or alert on benign DLL loading activity that is part of normal system or application operations, resulting in false positives and performance issues.
C is not the best step because enabling Behavioral Threat Protection (BTP) with cytool may not prevent the attack from spreading if the malicious files are already on the endpoints or if the attack uses other methods to evade detection. Behavioral Threat Protection is a feature of Cortex XDR that allows you to block or alert on any endpoint behavior that matches certain patterns, such as ransomware, credential theft, or lateral movement. Cytool is a command-line tool that allows you to configure and manage the Cortex XDR agent on the endpoint. However, Behavioral Threat Protection may not prevent the attack from spreading if the malicious files are already on the endpoints or if the attack uses other methods to evade detection, such as encryption, obfuscation, or proxy servers.
Reference:
Create IOCs
Scan an Endpoint for Malware
DLL Protection
Behavioral Threat Protection
Cytool for Windows
NEW QUESTION # 31
Which of the following represents the correct relation of alerts to incidents?
- A. Alerts that occur within a three-hour time frame are grouped together into one Incident.
- B. Only alerts with the same host are grouped together into one Incident in a given time frame.
- C. Alerts with same causality chains that occur within a given time frame are grouped together into an Incident.
- D. Every alert creates a new Incident.
Answer: C
Explanation:
The correct relation of alerts to incidents is that alerts with same causality chains that occur within a given time frame are grouped together into an incident. A causality chain is a sequence of events that are related to the same malicious activity, such as a malware infection, a lateral movement, or a data exfiltration. Cortex XDR uses a set of rules that take into account different attributes of the alerts, such as the alert source, type, and time period, to determine if they belong to the same causality chain. By grouping related alerts into incidents, Cortex XDR reduces the number of individual events to review and provides a complete picture of the attack with rich investigative details1.
Option A is incorrect, because alerts with the same host are not necessarily grouped together into one incident in a given time frame. Alerts with the same host may belong to different causality chains, or may be unrelated to any malicious activity. For example, if a host has a malware infection and a network anomaly, these alerts may not be grouped into the same incident, unless they are part of the same attack.
Option B is incorrect, because alerts that occur within a three hour time frame are not always grouped together into one incident. The time frame is not the only criterion for grouping alerts into incidents. Alerts that occur within a three hour time frame may belong to different causality chains, or may be unrelated to any malicious activity. For example, if a host has a file download and a registry modification within a three hour time frame, these alerts may not be grouped into the same incident, unless they are part of the same attack.
Option D is incorrect, because every alert does not create a new incident. Creating a new incident for every alert would result in alert fatigue and inefficient investigations. Cortex XDR aims to reduce the number of incidents by grouping related alerts into one incident, based on their causality chains and other attributes.
Reference:
Palo Alto Networks Certified Detection and Remediation Analyst (PCDRA) Study Guide, page 9 Palo Alto Networks Cortex XDR Documentation, Incident Management Overview2 Cortex XDR: Stop Breaches with AI-Powered Cybersecurity1
NEW QUESTION # 32
Which statement regarding scripts in Cortex XDR is true?
- A. The level of risk is assigned to the script upon import.
- B. Any script can be imported including Visual Basic (VB) scripts.
- C. Any version of Python script can be run.
- D. The script is run on the machine uploading the script to ensure that it is operational.
Answer: A
Explanation:
The correct answer is B, the level of risk is assigned to the script upon import. When you import a script to the Agent Script Library in Cortex XDR, you need to specify the level of risk associated with the script. The level of risk determines the permissions and restrictions for running the script on endpoints. The levels of risk are:
Low: The script can be run on any endpoint without requiring approval from the Cortex XDR administrator. The script can also be used in remediation suggestions or automation actions.
Medium: The script can be run on any endpoint, but requires approval from the Cortex XDR administrator. The script can also be used in remediation suggestions or automation actions.
High: The script can only be run on isolated endpoints, and requires approval from the Cortex XDR administrator. The script cannot be used in remediation suggestions or automation actions.
The other options are incorrect for the following reasons:
A is incorrect because not any version of Python script can be run in Cortex XDR. The scripts must be written in Python 2.7, and must follow the guidelines and limitations described in the Cortex XDR documentation. For example, the scripts must not exceed 64 KB in size, must not use external libraries or modules, and must not contain malicious or harmful code.
C is incorrect because not any script can be imported to Cortex XDR, including Visual Basic (VB) scripts. The scripts must be written in Python 2.7, and must follow the guidelines and limitations described in the Cortex XDR documentation. VB scripts are not supported by Cortex XDR, and will not run on the endpoints.
D is incorrect because the script is not run on the machine uploading the script to ensure that it is operational. The script is only validated for syntax errors and size limitations when it is imported to the Agent Script Library. The script is not executed or tested on the machine uploading the script, and the script may still fail or cause errors when it is run on the endpoints.
Reference:
Agent Script Library
Import a Script
Run Scripts on an Endpoint
NEW QUESTION # 33
When selecting multiple Incidents at a time, what options are available from the menu when a user right-clicks the incidents? (Choose two.)
- A. Investigate several Incidents at once.
- B. Assign incidents to an analyst in bulk.
- C. Change the status of multiple incidents.
- D. Delete the selected Incidents.
Answer: B,C
Explanation:
When selecting multiple incidents at a time, the options that are available from the menu when a user right-clicks the incidents are: Assign incidents to an analyst in bulk and Change the status of multiple incidents. These options allow the user to perform bulk actions on the selected incidents, such as assigning them to a specific analyst or changing their status to open, in progress, resolved, or closed. These options can help the user to manage and prioritize the incidents more efficiently and effectively. To use these options, the user needs to select the incidents from the incident table, right-click on them, and choose the desired option from the menu. The user can also use keyboard shortcuts to perform these actions, such as Ctrl+A to select all incidents, Ctrl+Shift+A to assign incidents to an analyst, and Ctrl+Shift+S to change the status of incidents12 Reference:
Assign Incidents to an Analyst in Bulk
Change the Status of Multiple Incidents
NEW QUESTION # 34
What is the action taken out by Managed Threat Hunting team for Zero Day Exploits?
- A. MTH researches for threats in the tenant and generates a report with the findings.
- B. MTH runs queries and investigative actions and no further action is taken.
- C. MTH researches for threats in the logs and reports to engineering.
- D. MTH pushes content updates to prevent against the zero-day exploits.
Answer: A
Explanation:
The Managed Threat Hunting (MTH) team is a group of security experts who proactively hunt for threats in the Cortex XDR tenant and generate a report with the findings. The MTH team uses advanced queries and investigative actions to identify and analyze potential threats, such as zero-day exploits, that may have bypassed the prevention and detection capabilities of Cortex XDR. The MTH team also provides recommendations and best practices to help customers remediate the threats and improve their security posture. Reference:
Managed Threat Hunting Service
Managed Threat Hunting Report
NEW QUESTION # 35
Which search methods is supported by File Search and Destroy?
- A. File Search and Repair
- B. File Search and Destroy
- C. File Seek and Destroy
- D. File Seek and Repair
Answer: B
Explanation:
File Search and Destroy is a feature of Cortex XDR that allows you to search for and remove malicious files from endpoints. You can use this feature to find files by their hash, full path, or partial path using regex parameters. You can then select the files from the search results and destroy them by hash or by path. When you destroy a file by hash, all the file instances on the endpoint are removed. File Search and Destroy is useful for quickly responding to threats and preventing further damage. Reference:
Search and Destroy Malicious Files
Cortex XDR Pro Administrator Guide
NEW QUESTION # 36
Which engine, of the following, in Cortex XDR determines the most relevant artifacts in each alert and aggregates all alerts related to an event into an incident?
- A. Log Stitching Engine
- B. Sensor Engine
- C. Causality Analysis Engine
- D. Causality Chain Engine
Answer: C
Explanation:
The engine that determines the most relevant artifacts in each alert and aggregates all alerts related to an event into an incident is the Causality Analysis Engine. The Causality Analysis Engine is one of the core components of Cortex XDR that performs advanced analytics on the data collected from various sources, such as endpoints, networks, and clouds. The Causality Analysis Engine uses machine learning and behavioral analysis to identify the root cause, the attack chain, and the impact of each alert. It also groups related alerts into incidents based on the temporal and logical relationships among the alerts. The Causality Analysis Engine helps to reduce the noise and complexity of alerts and incidents, and provides a clear and concise view of the attack story12.
Let's briefly discuss the other options to provide a comprehensive explanation:
A . Sensor Engine: This is not the correct answer. The Sensor Engine is not responsible for determining the most relevant artifacts in each alert and aggregating all alerts related to an event into an incident. The Sensor Engine is the component that runs on the Cortex XDR agents installed on the endpoints. The Sensor Engine collects and analyzes endpoint data, such as processes, files, registry keys, network connections, and user activities. The Sensor Engine also enforces the endpoint security policies and performs prevention and response actions3.
C . Log Stitching Engine: This is not the correct answer. The Log Stitching Engine is not responsible for determining the most relevant artifacts in each alert and aggregating all alerts related to an event into an incident. The Log Stitching Engine is the component that runs on the Cortex Data Lake, which is the cloud-based data storage and processing platform for Cortex XDR. The Log Stitching Engine normalizes and stitches together the data from different sources, such as firewalls, proxies, endpoints, and clouds. The Log Stitching Engine enables Cortex XDR to correlate and analyze data from multiple sources and provide a unified view of the network activity and threat landscape4.
D . Causality Chain Engine: This is not the correct answer. Causality Chain Engine is not a valid name for any of the Cortex XDR engines. There is no such engine in Cortex XDR that performs the function of determining the most relevant artifacts in each alert and aggregating all alerts related to an event into an incident.
In conclusion, the Causality Analysis Engine is the engine that determines the most relevant artifacts in each alert and aggregates all alerts related to an event into an incident. By using the Causality Analysis Engine, Cortex XDR can provide a comprehensive and accurate detection and response capability for security analysts.
Reference:
Cortex XDR Pro Admin Guide: Causality Analysis Engine
Cortex XDR Pro Admin Guide: View Incident Details
Cortex XDR Pro Admin Guide: Sensor Engine
Cortex XDR Pro Admin Guide: Log Stitching Engine
NEW QUESTION # 37
Network attacks follow predictable patterns. If you interfere with any portion of this pattern, the attack will be neutralized. Which of the following statements is correct?
- A. Cortex XDR Analytics allows to interfere with the pattern as soon as it is observed on the firewall.
- B. Cortex XDR Analytics does not interfere with the pattern as soon as it is observed on the endpoint.
- C. Cortex XDR Analytics does not have to interfere with the pattern as soon as it is observed on the endpoint in order to prevent the attack.
- D. Cortex XDR Analytics allows to interfere with the pattern as soon as it is observed on the endpoint.
Answer: D
Explanation:
Cortex XDR Analytics is a cloud-based service that uses machine learning and artificial intelligence to detect and prevent network attacks. Cortex XDR Analytics can interfere with the attack pattern as soon as it is observed on the endpoint by applying protection policies that block malicious processes, files, or network connections. This way, Cortex XDR Analytics can stop the attack before it causes any damage or compromises the system. Reference:
[Cortex XDR Analytics Overview]
[Cortex XDR Analytics Protection Policies]
NEW QUESTION # 38
To stop a network-based attack, any interference with a portion of the attack pattern is enough to prevent it from succeeding. Which statement is correct regarding the Cortex XDR Analytics module?
- A. It does not interfere with any portion of the pattern on the endpoint.
- B. It interferes with the pattern as soon as it is observed on the endpoint.
- C. It does not need to interfere with the any portion of the pattern to prevent the attack.
- D. It interferes with the pattern as soon as it is observed by the firewall.
Answer: B
Explanation:
The correct statement regarding the Cortex XDR Analytics module is D, it interferes with the pattern as soon as it is observed on the endpoint. The Cortex XDR Analytics module is a feature of Cortex XDR that uses machine learning and behavioral analytics to detect and prevent network-based attacks on endpoints. The Cortex XDR Analytics module analyzes the network traffic and activity on the endpoint, and compares it with the attack patterns defined by Palo Alto Networks threat research team. The Cortex XDR Analytics module interferes with the attack pattern as soon as it is observed on the endpoint, by blocking the malicious network connection, process, or file. This way, the Cortex XDR Analytics module can stop the attack before it causes any damage or compromise.
The other statements are incorrect for the following reasons:
A is incorrect because the Cortex XDR Analytics module does interfere with the attack pattern on the endpoint, by blocking the malicious network connection, process, or file. The Cortex XDR Analytics module does not rely on the firewall or any other network device to stop the attack, but rather uses the Cortex XDR agent installed on the endpoint to perform the interference.
B is incorrect because the Cortex XDR Analytics module does not interfere with the attack pattern as soon as it is observed by the firewall. The Cortex XDR Analytics module does not depend on the firewall or any other network device to detect or prevent the attack, but rather uses the Cortex XDR agent installed on the endpoint to perform the analysis and interference. The firewall may not be able to observe or block the attack pattern if it is encrypted, obfuscated, or bypassed by the attacker.
C is incorrect because the Cortex XDR Analytics module does need to interfere with the attack pattern to prevent the attack. The Cortex XDR Analytics module does not only detect the attack pattern, but also prevents it from succeeding by blocking the malicious network connection, process, or file. The Cortex XDR Analytics module does not rely on any other response mechanism or human intervention to stop the attack, but rather uses the Cortex XDR agent installed on the endpoint to perform the interference.
Reference:
Cortex XDR Analytics Module
Cortex XDR Analytics Module Detection and Prevention
NEW QUESTION # 39
What license would be required for ingesting external logs from various vendors?
- A. Cortex XDR Vendor Agnostic Pro
- B. Cortex XDR Pro per TB
- C. Cortex XDR Cloud per Host
- D. Cortex XDR Pro per Endpoint
Answer: B
Explanation:
To ingest external logs from various vendors, you need a Cortex XDR Pro per TB license. This license allows you to collect and analyze logs from Palo Alto Networks and third-party sources, such as firewalls, proxies, endpoints, cloud services, and more. You can use the Log Forwarding app to forward logs from the Logging Service to an external syslog receiver. The Cortex XDR Pro per Endpoint license only supports logs from Cortex XDR agents installed on endpoints. The Cortex XDR Vendor Agnostic Pro and Cortex XDR Cloud per Host licenses do not exist. Reference:
Features by Cortex XDR License Type
Log Forwarding App for Cortex XDR Analytics
SaaS Log Collection
NEW QUESTION # 40
To create a BIOC rule with XQL query you must at a minimum filter on which field in order for it to be a valid BIOC rule?
- A. endpoint_name
- B. threat_event
- C. event_type
- D. causality_chain
Answer: C
Explanation:
To create a BIOC rule with XQL query, you must at a minimum filter on the event_type field in order for it to be a valid BIOC rule. The event_type field indicates the type of event that triggered the alert, such as PROCESS, FILE, REGISTRY, NETWORK, or USER_ACCOUNT. Filtering on this field helps you narrow down the scope of your query and focus on the relevant events for your use case. Other fields, such as causality_chain, endpoint_name, threat_event, are optional and can be used to further refine your query or display additional information in the alert. Reference:
Palo Alto Networks Certified Detection and Remediation Analyst (PCDRA) Study Guide, page 9 Palo Alto Networks Cortex XDR Documentation, BIOC Rule Query Syntax
NEW QUESTION # 41
While working the alerts involved in a Cortex XDR incident, an analyst has found that every alert in this incident requires an exclusion. What will the Cortex XDR console automatically do to this incident if all alerts contained have exclusions?
- A. create a BIOC rule excluding this behavior
- B. create an exception to prevent future false positives
- C. mark the incident as Unresolved
- D. mark the incident as Resolved - False Positive
Answer: D
Explanation:
If all alerts contained in a Cortex XDR incident have exclusions, the Cortex XDR console will automatically mark the incident as Resolved - False Positive. This means that the incident was not a real threat, but a benign or legitimate activity that triggered an alert. By marking the incident as Resolved - False Positive, the Cortex XDR console removes the incident from the list of unresolved incidents and does not count it towards the incident statistics. This helps the analyst to focus on the true positive incidents that require further investigation and response1.
An exclusion is a rule that hides an alert from the Cortex XDR console, based on certain criteria, such as the alert source, type, severity, or description. An exclusion does not change the security policy or prevent the alert from firing, it only suppresses the alert from the console. An exclusion is useful when the analyst wants to reduce the noise of false positive alerts that are not relevant or important2.
An exception, on the other hand, is a rule that overrides the security policy and allows or blocks a process or file from running on an endpoint, based on certain attributes, such as the file hash, path, name, or signer. An exception is useful when the analyst wants to prevent false negative alerts that are caused by malicious or unwanted files or processes that are not detected by the security policy3.
A BIOC rule is a rule that creates an alert based on a custom XQL query that defines a specific behavior of interest or concern. A BIOC rule is useful when the analyst wants to detect and alert on anomalous or suspicious activities that are not covered by the default Cortex XDR rules4.
Reference:
Palo Alto Networks Cortex XDR Documentation, Resolve an Incident1
Palo Alto Networks Cortex XDR Documentation, Alert Exclusions2
Palo Alto Networks Cortex XDR Documentation, Exceptions3
Palo Alto Networks Cortex XDR Documentation, BIOC Rules4
NEW QUESTION # 42
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