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NEW QUESTION # 44
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?
Answer: D
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 # 45
What is the standard installation disk space recommended to install a Broker VM?
Answer: C
Explanation:
The Broker VM for Cortex XDR is a virtual machine that serves as the central communication hub for all Cortex XDR agents deployed in your organization. It enables agents to communicate with the Cortex XDR cloud service and allows you to manage and monitor the agents' activities from a centralized location. The system requirements for the Broker VM are as follows:
CPU: 4 cores
RAM: 8 GB
Disk space: 256 GB
Network: Internet access and connectivity to all Cortex XDR agents
The disk space requirement is based on the number of agents and the frequency of content updates. The Broker VM stores the content updates locally and distributes them to the agents. The disk space also depends on the retention period of the content updates, which can be configured in the Broker VM settings. The default retention period is 30 days.
Reference:
Broker VM for Cortex XDR
PCDRA Study Guide
NEW QUESTION # 46
Which of the following is an example of a successful exploit?
Answer: B
Explanation:
A successful exploit is a piece of software or code that takes advantage of a vulnerability and executes malicious actions on the target system. A vulnerability is a weakness or flaw in a software or hardware component that can be exploited by an attacker. A successful exploit is one that achieves its intended goal, such as gaining unauthorized access, executing arbitrary code, escalating privileges, or compromising data.
In the given options, only B is an example of a successful exploit, because it involves a user executing code that exploits a vulnerability on a local service, such as a web server, a database, or a network protocol. This could allow the attacker to gain control over the service, access sensitive information, or perform other malicious actions.
Option A is not a successful exploit, because it involves connecting unknown media to an endpoint that copied malware due to Autorun. Autorun is a feature that automatically runs a program or script when a removable media, such as a USB drive, is inserted into a computer. This feature can be abused by malware authors to spread their malicious code, but it is not an exploit in itself. The malware still needs to exploit a vulnerability on the endpoint to execute its payload and cause damage.
Option C is not a successful exploit, because it involves identifying vulnerable services on a server. This is a step in the reconnaissance phase of an attack, where the attacker scans the target system for potential vulnerabilities that can be exploited. However, this does not mean that the attacker has successfully exploited any of the vulnerabilities, or that the vulnerabilities are even exploitable.
Option D is not a successful exploit, because it involves executing a process executable for well-known and signed software. This is a legitimate action that does not exploit any vulnerability or cause any harm. Well-known and signed software are programs that are widely used and trusted, and have a digital signature that verifies their authenticity and integrity. Executing such software does not pose a security risk, unless the software itself is malicious or compromised.
Reference:
Palo Alto Networks Certified Detection and Remediation Analyst (PCDRA) Study Guide, page 8 What Is an Exploit? Definition, Types, and Prevention Measures(https://heimdalsecurity.com/blog/what-is-an-exploit/) Exploit Definition & Meaning - Merriam-Webster(https://www.merriam-webster.com/dictionary/exploit)
NEW QUESTION # 47
When using the "File Search and Destroy" feature, which of the following search hash type is supported?
Answer: C
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 # 48
Which of the following represents the correct relation of alerts to incidents?
Answer: D
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 # 49
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