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[General] New XDR-Analyst Exam Camp, XDR-Analyst Pdf Pass Leader

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【General】 New XDR-Analyst Exam Camp, XDR-Analyst Pdf Pass Leader

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Palo Alto Networks XDR Analyst Sample Questions (Q90-Q95):NEW QUESTION # 90
When creating a BIOC rule, which XQL query can be used?
  • A. dataset = xdr_data
    | filter event_behavior = true
    event_sub_type = PROCESS_START and
    action_process_image_name ~= ".*?.(?:pdf|docx).exe"
  • B. dataset = xdr_data
    | filter event_sub_type = PROCESS_START and
    action_process_image_name ~= ".*?.(?:pdf|docx).exe"
  • C. dataset = xdr_data
    | filter action_process_image_name ~= ".*?.(?:pdf|docx).exe"
    | fields action_process_image
  • D. dataset = xdr_data
    | filter event_type = PROCESS and
    event_sub_type = PROCESS_START and
    action_process_image_name ~= ".*?.(?:pdf|docx).exe"
Answer: D
Explanation:
A BIOC rule is a custom detection rule that uses the Cortex Query Language (XQL) to define the behavior or actions that indicate a potential threat. A BIOC rule can use the xdr_data and cloud_audit_log datasets and presets for these datasets. A BIOC rule can also use the filter stage, alter stage, and functions without any aggregations in the XQL query. The query must return a single field named action_process_image, which is the process image name of the suspicious process. The query must also include the event_type and event_sub_type fields in the filter stage to specify the type and sub-type of the event that triggers the rule.
Option B is the correct answer because it meets all the requirements for a valid BIOC rule query. It uses the xdr_data dataset, the filter stage, the event_type and event_sub_type fields, and the action_process_image_name field with a regular expression to match any process image name that ends with .pdf.exe or .docx.exe, which are common indicators of malicious files.
Option A is incorrect because it does not include the event_type field in the filter stage, which is mandatory for a BIOC rule query.
Option C is incorrect because it does not include the event_type and event_sub_type fields in the filter stage, and it uses the fields stage, which is not supported for a BIOC rule query. It also returns the action_process_image field instead of the action_process_image_name field, which is the expected output for a BIOC rule query.
Option D is incorrect because it uses the event_behavior field, which is not supported for a BIOC rule query. It also does not include the event_type field in the filter stage, and it uses the event_sub_type field incorrectly. The event_sub_type field should be equal to PROCESS_START, not true.
Reference:
Working with BIOCs
Cortex Query Language (XQL) Reference

NEW QUESTION # 91
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. Create lOCs of the malicious files you have found to prevent their execution.
  • B. Enable Behavioral Threat Protection (BTP) with cytool to prevent the attack from spreading.
  • C. Enable DLL Protection on all servers but there might be some false positives.
  • D. Conduct a thorough Endpoint Malware scan.
Answer: A
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 # 92
As a Malware Analyst working with Cortex XDR you notice an alert suggesting that there was a prevented attempt to download Cobalt Strike on one of your servers. Days later, you learn about a massive ongoing supply chain attack. Using Cortex XDR you recognize that your server was compromised by the attack and that Cortex XDR prevented it. What steps can you take to ensure that the same protection is extended to all your servers?
  • A. Enable Behavioral Threat Protection (BTP) with cytool to prevent the attack from spreading.
  • B. Create IOCs of the malicious files you have found to prevent their execution.
  • C. Create Behavioral Threat Protection (BTP) rules to recognize and prevent the activity.
  • D. Enable DLL Protection on all servers but there might be some false positives.
Answer: C
Explanation:
To ensure that the same protection is extended to all your servers, you need to create Behavioral Threat Protection (BTP) rules to recognize and prevent the activity. BTP is a feature of Cortex XDR that allows you to create custom rules that detect and block malicious or suspicious behaviors on your endpoints, such as file execution, process injection, network connection, or registry modification. BTP rules can use various operators, functions, and variables to define the criteria and the actions for the rules. By creating BTP rules that match the behaviors of the supply chain attack, you can prevent the attack from compromising your servers12.
Let's briefly discuss the other options to provide a comprehensive explanation:
B . Enable DLL Protection on all servers but there might be some false positives: This is not the correct answer. Enabling DLL Protection on all servers will not ensure that the same protection is extended to all your servers. DLL Protection is a feature of Cortex XDR that allows you to block the execution of unsigned or untrusted DLL files on your endpoints. DLL Protection can help to prevent some types of attacks that use malicious DLL files, but it may not be effective against the supply chain attack that used a Trojanized DLL file that was digitally signed by a trusted vendor. DLL Protection may also cause some false positives, as it may block some legitimate DLL files that are unsigned or untrusted3.
C . Create IOCs of the malicious files you have found to prevent their execution: This is not the correct answer. Creating IOCs of the malicious files you have found will not ensure that the same protection is extended to all your servers. IOCs are indicators of compromise that you can create to detect and respond to known threats on your endpoints, such as file hashes, registry keys, IP addresses, domain names, or full paths. IOCs can help to identify and block the malicious files that you have already discovered, but they may not be effective against the supply chain attack that used different variants of the malicious files with different hashes or names. IOCs may also become outdated, as the attackers may change or update their files to evade detection4.
D . Enable Behavioral Threat Protection (BTP) with cytool to prevent the attack from spreading: This is not the correct answer. Enabling BTP with cytool will not ensure that the same protection is extended to all your servers. BTP is a feature of Cortex XDR that allows you to create custom rules that detect and block malicious or suspicious behaviors on your endpoints, such as file execution, process injection, network connection, or registry modification. BTP rules can help to prevent the attack from spreading, but they need to be created and configured in the Cortex XDR app, not with cytool. Cytool is a command-line tool that allows you to perform various operations on the Cortex XDR agent, such as installing, uninstalling, upgrading, or troubleshooting. Cytool does not have an option to enable or configure BTP rules.
In conclusion, to ensure that the same protection is extended to all your servers, you need to create BTP rules to recognize and prevent the activity. By using BTP rules, you can create custom and flexible prevention rules that match the behaviors of the supply chain attack.
Reference:
Behavioral Threat Protection
Create a BTP Rule
DLL Protection
Create an IOC Rule
[Cytool]

NEW QUESTION # 93
When using the "File Search and Destroy" feature, which of the following search hash type is supported?
  • A. SHA256 hash of the file
  • B. SHA1 hash of the file
  • C. AES256 hash of the file
  • D. MD5 hash of the file
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 and Destroy 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 Reference:
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?

NEW QUESTION # 94
Where can SHA256 hash values be used in Cortex XDR Malware Protection Profiles?
  • A. SHA256 hashes cannot be used in Cortex XDR Malware Protection Profiles
  • B. in the Windows Malware Protection Profile to indicate allowed executables
  • C. in the Linux Malware Protection Profile to indicate allowed Java libraries
  • D. in the macOS Malware Protection Profile to indicate allowed signers
Answer: B
Explanation:
Cortex XDR Malware Protection Profiles allow you to configure the malware prevention settings for Windows, Linux, and macOS endpoints. You can use SHA256 hash values in the Windows Malware Protection Profile to indicate allowed executables that you want to exclude from malware scanning. This can help you reduce false positives and improve performance by skipping the scanning of known benign files. You can add up to 1000 SHA256 hash values per profile. You cannot use SHA256 hash values in the Linux or macOS Malware Protection Profiles, but you can use other criteria such as file path, file name, or signer to exclude files from scanning. Reference:
Malware Protection Profiles
Configure a Windows Malware Protection Profile
PCDRA Study Guide

NEW QUESTION # 95
......
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