CREST CPTIA CREST Practitioner Threat Intelligence Analyst Exam Practice Test

The Barracuda Email Security Gateway is designed to manage and filter inbound and outbound email traffic to protect organizations from email-borne threats and data leaks. As an incident handler analyzing email headers to find out suspicious emails, using a tool like the Barracuda Email Security Gateway would be appropriate. This tool can help identify and block spam, phishing, malware, and other malicious email threats, making it easier to focus on analyzing potentially harmful emails more closely.

Email-bombing refers to the attack where the attacker sends a massive volume of emails to a specific email address or mail server in order to overflow the mailbox or overwhelm the server, potentially causing it to fail or deny service to legitimate users. This attack can disrupt communications and, in some cases, lead to the targeted email account being disabled. Masquerading involves pretending to be another legitimate user, spoofing is the creation of emails (or other communications) with a forged sender address, and a smurf attack is a specific type of Distributed Denial of Service (DDoS) attack that exploits Internet Protocol (IP) and Internet Control Message Protocol (ICMP) to flood a target with traffic. Email-bombing specifically targets email services with the goal of causing disruption by overflowing inboxes.References:CREST CPTIA courses and study guides often include discussions on various attack vectors used by cybercriminals, including email-based threats and their impact on organizational security.

The scenario described by Steve's observations, where multiple logins are occurring from different locations in a short time span, especially from locations where the organization has no business relations, points to 'Geographical anomalies' as a key indicator of compromise (IoC). Geographical anomalies in logins suggest unauthorized access attempts potentially made by attackers using compromised credentials. This is particularly suspicious when the locations of these logins do not align with the normal geographical footprint of the organization's operations or employee locations. Monitoring for such anomalies can help in the early detection of unauthorized access and potential data breaches.References:

SANS Institute Reading Room, "Indicators of Compromise: Reality's Version of the Minority Report"

"Identifying Indicators of Compromise" by CERT-UK

The correct sequence for scheduling a threat intelligence program involves starting with the foundational steps of defining the project scope and objectives, followed by detailed planning and scheduling of tasks. The sequence starts with reviewing the project charter (1) to understand the project's scope, objectives, and constraints. Next, building a Work Breakdown Structure (WBS) (9) helps in organizing the team's work into manageable sections. Identifying all deliverables (2) clarifies the project's outcomes. Defining all activities (8) involves listing the tasks required to produce the deliverables. Identifying the sequence of activities (3) and estimating resources (7) and task dependencies (4) sets the groundwork for scheduling. Estimating the duration of each activity (6) is critical before developing the final schedule (5), which combines all these elements into a comprehensive plan. This approach ensures a structured and methodical progression from project initiation to execution.References:

"A Guide to the Project Management Body of Knowledge (PMBOK Guide)," Project Management Institute

"Cyber Intelligence-Driven Risk," by Intel471

For memory dump analysis, tools like Scylla and OllyDumpEx are more suited. These tools are designed to analyze and extract information from memory dumps, which can be crucial for understanding the state of a system at the time of an incident. Scylla is used for reconstructing imports in dumped binaries, while OllyDumpEx is an OllyDbg plugin used for dumping process memory. Both tools are valuable for incident handlers like Rinni who are performing memory dump analysis to uncover evidence or understand the behavior of malicious software.

In the scenario described, where attackers have penetrated the network and are staging data for exfiltration, Jim should focus on monitoring network traffic for signs of malicious file transfers, implement file integrity monitoring, and scrutinize event logs. This approach is crucial for detecting unusual activity that could indicate data staging, such as large volumes of data being moved to uncommon locations, sudden changes in file integrity, or suspicious entries in event logs. Early detection of these indicators can help in identifying the staging activity before the data is exfiltrated from the network.References:

NIST Special Publication 800-61 Rev. 2, "Computer Security Incident Handling Guide"

SANS Institute Reading Room, "Detecting Malicious Activity with DNS and NetFlow"

Karry's method of collecting data, which involves no active engagement with participants and is purely based on analysis and observation of activities within the organization, is known as passive data collection. This method is characterized by the non-intrusive monitoring of data and events, allowing analysts to gather intelligence without alerting potential adversaries or disrupting ongoing processes. Passive data collection is essential for maintaining operational security and obtaining an unaltered view of system and network activities.References:

"Passive Data Collection in Cybersecurity," by Cybersecurity Guide

"Understanding Passive and Active Data Collection for Cyber Threat Intelligence," by ThreatConnect

When a corporate network's servers are sending huge amounts of traffic to a specific website, as detected by the network's Intrusion Prevention System (IPS), this behavior is indicative of a Botnet attack. A Botnet is a network of compromised computers, often referred to as "bots," that are controlled remotely by an attacker, typically without the knowledge of the owners of the computers. The attacker can command these bots to execute distributed denial-of-service (DDoS) attacks, send spam, or conduct other malicious activities. In this scenario, the servers behaving as bots and targeting a website with large volumes of traffic suggests that they have been co-opted into a Botnet to potentially perform a DDoS attack on the website abc.xyz.References:Incident Handler (CREST CPTIA) courses and study guides discuss various types of cyber threats and attack vectors, including Botnets and their role in distributed cyber attacks.

The correct sequence of steps involved in forensic readiness planning, based on the activities described, is as follows:

Identify the potential evidence required for an incident.

Determine the source of the evidence.

Define a policy that determines the pathway to legally extract electronic evidence with minimal disruption.

Establish a policy for securely handling and storing the collected evidence.

Identify if the incident requires full or formal investigation.

Train the staff to handle the incident and preserve the evidence.

Create a special process for documenting the procedure.

Establish a legal advisory board to guide the investigation process.This sequence ensures that an organization is prepared to handle incidents efficiently, with a focus on identifying relevant evidence and the legal context of its collection, followed by staff training and the establishment of guiding policies and advisory boards.References:Incident Handler (CREST CPTIA) courses and study guides include discussions on forensic readiness planning, highlighting the importance of preparing organizations for effective legal and technical handling of incidents.

To retrieve historical information about a company's website, including content that may have been removed or altered, Alison should use the Internet Archive's Wayback Machine, accessible athttps://archive.org . The Wayback Machine is a digital archive of the World Wide Web and other information on the Internet, providing free access to snapshots of websites at various points in time. This tool is invaluable for researchers and analysts looking to understand the evolution of a website or recover lost information.References:

"Using the Wayback Machine for Cybersecurity Research," Internet Archive Blogs

"Digital Forensics with the Archive's Wayback Machine," by Jeff Kaplan, Internet Archive

For intelligence to be effectively disseminated and utilized by consumers, it must be presented in a manner that is concise, accurate, easily understandable, and engaging. This involves a careful balance of narrative, numerical data, tables, graphics, and potentially multimedia elements to convey the information clearly and compellingly. The right presentation takes into account the preferences and needs of the intelligence consumers, as well as the context andurgency of the information. By focusing on how the intelligence is presented, the analyst ensures that the content is not only consumed but also actionable, facilitating informed decision-making.

Red Teams are tasked with emulating potential adversaries to test and improve the security posture of an organization. They require intelligence on the latest vulnerabilities, threat actors, and their TTPs to simulate realistic attack scenarios and identify potential weaknesses in the organization's defenses. This information helps Red Teams in crafting their attack strategies to be as realistic and relevant as possible, thereby providing valuable insights into how actual attackers might exploit the organization's systems. This need contrasts with the requirements of other teams or roles within an organization, such as strategic decision-makers, who might be more interested in intelligence relatedto strategic risks or Blue Teams, which focus on defending against and responding to attacks.References:

Red Team Field Manual (RTFM)

MITRE ATT&CK Framework for understanding threat actor TTPs

The Sarbanes–Oxley Act (SOX) Title V, titled "Analyst Conflicts of Interest," contains measures specifically designed to restore investor confidence in the reporting of securities analysts. It addresses the issue of potential conflicts of interest for securities analysts who recommend stocks and other securities by requiring disclosure of certain relationships and financial interests between analysts and the companies they cover. This part of the SOX Act aims to ensure that investors receive unbiased and accurate information from analysts, thereby helping to restore trust in financial markets. Title V consists of only one section, making it unique compared to other titles within the Act that may encompass multiple sections or provisions.References:The Incident Handler (CREST CPTIA) certification materials might not directly cover the specifics of the Sarbanes–Oxley Act but would underscore the importance of understanding regulatory requirements and compliance, especially in roles involving incident response and information security governance.

BrowsingHistoryView is a tool designed to collect and analyze history data from various web browsers, including Microsoft Edge. It allows users to view the browsing history stored by their browsers in one unified interface. This includes URLs visited, page titles, visit times, and the number of visits to each page. While ChromeHistoryView is specific to Google Chrome, BrowsingHistoryView supports multiple browsers, making it versatile for analyzing history data across different platforms. MZCacheView and MZHistoryView do not exist as tools recognized for this purpose in the context of Microsoft Edge or other browser history analysis.References:Incident Handler (CREST CPTIA) courses and study guides emphasize the importance of using digital forensic tools, such as BrowsingHistoryView, for analyzing web browser data during investigations.

The regular expression/exec(\s|\+)+(s|x)p\w+/ixis designed to match patterns that resemble SQL injection attempts, specifically targeting MS SQL Server. This expression looks for the use of theexeccommand followed by one or more spaces or plus signs, and then patterns that start withsporxp, which are prefixes commonly used in SQL Server stored procedures and extended stored procedures. These are often targeted in SQL injection attacks to execute malicious SQL statements. The regular expression provided is a tool used by incident responders like Tibson to identify and analyze potential SQL injection attempts by looking for suspicious patterns in SQL queries.

Sam's mistake was using threat intelligence from sources that he did not verify for reliability. Relying on intelligence from unverified or unreliable sources can lead to the incorporation of inaccurate, outdated, or irrelevant information into the organization's threat intelligence program. This can result in "noise," which refers to irrelevant or false information that can distract from real threats, and potentially put the organization's network at risk. Verifying the credibility and reliability of intelligence sources is crucial to ensure that the data used for making security decisions is accurate and actionable.References:

"Best Practices for Threat Intelligence Sharing," by FIRST (Forum of Incident Response and Security Teams)

"Evaluating Cyber Threat Intelligence Sources," by Jon DiMaggio, SANS Institute InfoSec Reading Room

Cloud Passage Halo is a security platform designed to provide comprehensive visibility and protection for cloud environments, making it an effective tool for incident responders dealing with potential cloud security incidents. It offers capabilities for detecting, responding to, and containing threats across public, private, and hybrid cloud environments. With features like automated security policies, compliance monitoring, and threat detection, Cloud Passage Halo enables incident responders to quickly contain incidents and gather the required forensic evidence to investigate the scope and impact of a breach or security issue. Tools like Alert Logic and Qualys Cloud Platform also provide security and compliance solutions for cloud environments, but Cloud Passage Halo is specifically recognized for its robust incident response and containment capabilities.References:The Incident Handler (CREST CPTIA) certification materials and courses discuss various tools and technologies that support cloud security incident response, including the role of platforms like Cloud Passage Halo in effective incident management.

True attribution in the context of cyber threats involves identifying the actual individual, group, or nation-state behind an attack or intrusion. This type of attribution goes beyond associating an attack with certain tactics, techniques, and procedures (TTPs) or a known group and aims to pinpoint the real-world entity responsible. True attribution ischallenging due to the anonymity of the internet and the use of obfuscation techniques by attackers, but it is crucial for understanding the motive behind an attack and for forming appropriate responses at diplomatic, law enforcement, or cybersecurity levels.References:

"Attribution of Cyber Attacks: A Framework for an Evidence-Based Analysis" by Jason Healey

"The Challenges of Attribution in Cyberspace" in the Journal of Cyber Policy

Fragmentation is a technique used by attackers to evade detection by Intrusion Detection Systems (IDS) and Intrusion Prevention Systems (IPS). By breaking down packets into smaller fragments, attackers can make it more difficult for these security systems to detect malicious payloads or signature-based patterns associated with known attacks. This method exploits the fact that some IDS/IPS solutions may not properly reassemble packet fragments for analysis, thereby allowing malicious fragments to pass through undetected.

References:In its coverage of network security mechanisms and evasion techniques, the CREST details how attackers exploit vulnerabilities in the implementation of IDS and IPS systems, including the use of packet fragmentation.

Not enabling default administrative accounts is crucial to ensuring accountability and minimizing the risk of insider attacks by privileged users. By disabling or renaming default accounts, organizations can better track the actions performed by individual administrators, reducing the risk of unauthorized or malicious activities going unnoticed. This practice is part of a broader approach to privilege management that includes limiting permissions to the minimum necessary and monitoring the use of administrative privileges.

References:The CREST CPTIA program emphasizes the importance of managing privileged access and ensuring accountability among users with elevated permissions to protect against insider threats and misuse of administrative rights.

The information shared by Alice, which was highly technical and included details such as threat actor tactics, techniques, and procedures (TTPs), malware campaigns, and tools used by threat actors, aligns with the definition of tactical threat intelligence. This type of intelligence focuses on the immediate, technical indicators of threats and is used bysecurity operation managers and network operations center (NOC) staff to protect organizational resources. Tactical threat intelligence is crucial for configuring security solutions and adjusting defense mechanisms to counteract known threats effectively.References:

"Tactical Cyber Intelligence," Cyber Threat Intelligence Network, Inc.

"Cyber Threat Intelligence for Front Line Defenders: A Practical Guide," by James Dietle

Daniel's activities align with those typically associated with organized hackers. Organized hackers or cybercriminals work in groups with the primary goal of financial gain through illegal activities such as stealing and selling data. These groups often target large amounts of data, including personal and financial information, which they can monetize by selling on the black market or dark web. Unlike industrial spies who focuson corporate espionage or state-sponsored hackers who are backed by nation-states for political or military objectives, organized hackers are motivated by profit. Insider threats, on the other hand, come from within the organization and might not always be motivated by financial gain. The actions described in the scenario—targeting personal and financial information for sale—best fit the modus operandi of organized cybercriminal groups.References:

ENISA (European Union Agency for Cybersecurity) Threat Landscape Report

Verizon Data Breach Investigations Report

Alice, looking to gather information on emerging threats including attack methods, tools, and post-attack techniques, should turn to hacking forums. These online platforms are frequented by cybercriminals and security researchers alike, where information on the latest exploits, malware, and hacking techniques is shared and discussed. Hacking forums can provide real-time insights into the tactics, techniques, and procedures (TTPs) used by threat actors, offering a valuable resource for threat intelligence analysts aiming to enhance their organization's defenses.References:

"Hacking Forums: A Ground for Cyber Threat Intelligence," by Digital Shadows

"The Value of Hacking Forums for Threat Intelligence," by Flashpoint

The GPG18 and Forensic readiness planning (SPF) principles outline various guidelines to enhance an organization's readiness for forensic investigation and response. Principle 5, which suggests that organizations should adopt a scenario-based Forensic Readiness Planning approach that learns from experience gained within the business, emphasizes the importance of being prepared for a wide range of potential incidents by leveraging lessons learned from past experiences. This approach helps in continuously improving forensic readiness and response capabilities by adapting to the evolving threat landscape and organizational changes.

References:While specific documentation from GPG18 and SPF might detail these principles, the CREST CPTIA program by EC-Council covers the concept of forensic readiness planning, including adopting scenario-based approaches and learning from past incidents as a fundamental aspect of enhancing an organization's incident response and forensic capabilities.

The data preprocessing step performed by Johnson, where he analyzes user activities within a certain time period to create time-ordered domain sequences for further analysis on sequential patterns, is known as user-specific sessionization. This process involves aggregating all user activities and requests into discrete sessions based on the individual user, allowing for a coherent analysis of user behavior over time. This is critical for identifying patterns that may indicate a watering hole attack, where attackers compromise a site frequently visited by the target group to distribute malware. User-specific sessionization helps in isolating and examining sequences of actions taken by users, making it easier to detect anomalies or patterns indicative of such an attack.References:The CREST materials discuss various data preprocessing techniques used in the analysis of cyber attacks, including the concept of sessionization to better understand user behavior and detect threats.

The correct flow of stages in an Incident Handling and Response (IH&R) process as outlined in the Incident Handler (CREST CPTIA) by EC-Council begins with Preparation. This phase involves getting ready for potential incidents by developing plans, policies, and procedures, and ensuring that tools and team training are up to date. Incident Recording is the next stage, where incidents are documented and reported. Incident Triage follows, prioritizing incidents based on their impact and urgency. Containment is next, aiming to limit the damage of the incident and prevent further spread. Eradication comes after containment, where the root cause of the incident is removed. Recovery is the stage where affected systems are restored to their operational status. Post-Incident Activities conclude the process, reviewing and learning from the incident to improve future response efforts.

References:This structured approach is foundational in the CREST CPTIA program, ensuring that incident handlers are prepared to systematically address and manage cybersecurity incidents efficiently.

Incident triage is the stage in the incident response process where the incident handler, like Mike, performs an initial assessment of the reported incident to determine its validity, severity, and potential impact. This includes analyzing the incident to verify if it is a genuine threat or a false positive. The purpose of incident triage is to prioritize incidents based on their criticalityand ensure that resources are allocated effectively to address the most serious threats first. This stage is crucial for efficient incident management, as it helps in filtering out false alarms and focusing on real security incidents that require immediate attention.References:The CREST CPTIA curriculum covers the incident response lifecycle, including the importance of incident triage as a key step in ensuring that incident handling efforts are focused on genuine security incidents, thereby optimizing the response process.

Static analysis involves examining the malware's memory dumps or binary codes without executing the code. This technique is used to find traces of malware by analyzing the code to understand its purpose, functionality, and potential impact. Static analysis allows for the identification of malicious signatures, strings, or other indicators of compromise within the malware's code. This method is contrasted with dynamic analysis, which studies the malware's behavior during execution, live system analysis, which examines running systems, and intrusion analysis, which focuses on detecting and analyzing breaches.

In the context of US Federal Agencies, incidents are categorized based on their impact on operations, assets, or individuals. A DoS attack that prevents or impairs the authorized functionality of networks and is still ongoing without successful mitigation efforts typically falls under Category 2 (CAT 2). This category is designated for incidents that have a significant impact, requiring immediate reporting and response. The reporting timeframe of within 2 hours as mentioned aligns with the urgency associated with CAT 2 incidents, emphasizing the need for swift action to address the attack and restore normal operations.References:US Federal incident response guidelines and the Incident Handler (CREST CPTIA)courses outline the categorization of cybersecurity incidents, detailing the response protocols for each category, including the reporting timeframes.

In the context of incident handling, the "point of contact" list is essential for ensuring that Sheila, the incident handler working at night, can quickly notify the responsible personnel within the organization about the cyberattack. This list typically includes the contact information of key stakeholders and decision-makers who need to be informed about security incidents, allowing for timely communication, decision-making, and response coordination.

References:Incident Handler (CREST CPTIA) courses and study guides stress the importance of having a well-maintained point of contact list as part of an organization's incident response plan to facilitate efficient and effective communication during and after cybersecurity incidents.

As of my last update, the most recent NIST standard for incident response was NIST Special Publication 800-61 Revision 2 (800-61r2), titled "Computer Security Incident Handling Guide." This document provides guidelines for establishing an effective incident response program, including preparation, detection and analysis, containment, eradication, recovery, and post-incident activity.

References:The document is a key resource in the field of incident response, frequently cited in the CREST CPTIA curriculum for its comprehensive guidelines on managing and responding to cybersecurity incidents.

The correct sequence to examine the originating IP address of emails involves first accessing the email's header to locate the IP address, then using external resources to investigate that address further. The steps are as follows:

Step 2:Open the email to trace and find its header. This is the initial step because the header contains valuable information about the email's journey across the internet, including the originating IP address.

Step 3:Collect the IP address of the sender from the header of the received mail. This detail is crucial for the next steps in the investigation.

Step 1:Search for the IP in the WHOIS database. This database can provide information about the owner of the IP address, including the ISP and sometimes the geographic location.

Step 4:Look for the geographic address of the sender in the WHOIS database. With the IP address information obtained from the WHOIS search, the geographic location or the originating country of the email can often be deduced, contributing to the analysis of the email's legitimacy.

References:The process of analyzing email headers to trace originating IP addresses and further investigating those addresses is a common practice in incident response, covered under the digital forensics and email analysis topics within the CREST CPTIA curriculum by EC-Council.

Nation-state attribution involves identifying a specific country or government as the sponsor behind a cyber-attack or intrusion. This type of threat attribution is focused on determining the involvement of state actors in cyber operations against specific targets, which often involves sophisticated, well-planned, and executed cyber campaigns. Alexis's efforts to identify and attribute the actors behind the attack to a specific nation-state fall under this category, as she seeks to uncover the geopolitical motives and the extent of state sponsorship behind the incident. Nation-state attribution requires analyzing a variety of indicators, including technical evidence, tactics, techniques, and procedures (TTPs), and contextual intelligence. This is distinct from campaign attribution, which focuses on linking attacks to a specific campaign or operation, true attribution, which aims at identifying the actual individuals behind an attack, and intrusion set attribution, which involves attributing a set of malicious activities to a particular threat actor orgroup.References:The Incident Handler (CREST CPTIA) certification program includes discussions on various types of threat attributions, highlighting the challenges and methodologies involved in attributing cyber-attacks to specific actors, including nation-states.

Phishing emails often share common characteristics designed to manipulate the recipient into taking immediate action. One of the hallmark features is the use of urgency, threatening language, or promising subject lines in the emails. These tactics are intended to create a sense of urgency or fear, compelling the recipient to respond quickly without giving due consideration to the legitimacy of the email. Phishing emails may claim that the recipient's account has been compromised, that they need to confirm personal information immediately, or that they have won a prize. The goal is to trick the recipient into clicking on malicious links, opening attachments, or providing sensitive information.

References:The Certified Incident Handler (CREST CPTIA) program by EC-Council covers the identification and handling of phishing incidents, including the analysis of phishing emails and the importance of educating users on recognizing and responding to phishing attempts.

The analyst used Open Source Intelligence (OSINT) to gather information from publicly available sources. OSINT involves collecting and analyzing information from publicly accessible sources to produce actionable intelligence. This can include media reports, public government data, professional and academic publications, and information available on the internet. OSINT is widely used for national security, law enforcement, and business intelligence purposes, providing a rich source of information for making informed decisions and understanding the threat landscape.References:

"Open Source Intelligence (OSINT) Tools and Techniques," by SANS Institute

"The Role of OSINT in Cybersecurity and Threat Intelligence," by Recorded Future

A gateway in a network functions as a node that routes traffic between different networks, such as from a local network to the internet. In the context of cyber threats, a gateway can be utilized to monitor and control the data flow to and from the network, helping in the identification and analysis of malware communications, including traffic to external command and control (C2) servers. This makes it an essential component in detecting installed malware within a network by observing anomalies or unauthorized communications at the network's boundary. Unlike repeaters, hubs, or network interface cards (NICs) that primarily facilitate network connectivity without analyzing the traffic, gateways can enforce security policies and detect suspicious activities.References:

"Network Security Basics," Security+ Guide to Network Security Fundamentals

"Malware Command and Control Channels: A Journey," SANS Institute InfoSec Reading Room

The scenario described fits the characteristics of an Advanced Persistent Threat (APT) attack. APTs are sophisticated, stealthy, and continuous computer hacking processes often orchestratedby groups targeting a specific entity. These attackers penetrate the network through vulnerabilities, maintain access without detection, and achieve their objectives, such as data exfiltration or financial theft, over an extended period. The fact that attackers exploited a minor vulnerability, maintained access for six months, and performed lateral movements to access critical systems for fraudulent transactions highlights the strategic planning and persistence typical of APT attacks.References:Incident Handler (CREST CPTIA) certification materials discuss APTs in detail, including their methodologies, objectives, and the importance of comprehensive security strategies to detect and mitigate such threats.

Software as a Service (SaaS) offers the least amount of security responsibility for the end-user or organization, as the service provider manages the underlying infrastructure, software maintenance, security patching, and updates. Choosing a SaaS application means the colleague's organization would not be responsible for the physical servers, operating systems, or the application's security configurations, making it the best option for minimizing their security responsibilities.

References:In the Certified Incident Handler (CREST CPTIA) course materials, the various cloud service models (IaaS, PaaS, SaaS) are discussed with a focus on their implications for security responsibilities and management.

Wireshark is a network protocol analyzer that allows users to capture and interactively browse the traffic running on a computer network. It is a crucial tool for incident responders like Eric who are developing incident-handling plans and need to analyze network traffic and patterns. Wireshark can provide detailed information about the network, including protocols used, source and destination of packets, and potential signs of malicious activity, making it invaluable for developing informed policies and procedures.

Wireshark is a widely used network protocol analyzer that helps in capturing and interactively browsing the traffic on a network. It is an essential tool for incident responders like Eric who are developing incident-handling plans and procedures. By analyzing network traffic, Wireshark allows users to see what is happening on their network at a microscopic level, making it invaluable for troubleshooting network problems, analyzing security incidents, and understanding network behavior. Whois is used for querying databases that store registered users or assignees of an Internet resource. Burp Suite is a tool for testing web application security, and FaceNiff is used for session hijacking within a WiFi network, which makes Wireshark the best choice for analyzing network traffic.References:CREST materials often reference Wireshark as a fundamental tool for network analysis, crucial for incident handlers in the analysis phase of incident response.