Identifying Malware

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Malware is one of the greatest threats to an organization. It’s common for an advanced persistent threat to use malware to gain a foothold in a single computer and then pivot to other computers in a network. Because of this, cybersecurity certifications (including the the SY0-401 and SY0-501 Security+ certifications) typically require you to understand many of the different malware types.

As an example, see if you can you answer this question.

Q. Dr. Terwilliger installed code designed to enable his account automatically if he ever lost his job as a sidekick on a television show. The code was designed to reenable his account three days after it is disabled. Which of the following does this describe?

A. Logic bomb

B. Rootkit

C. Spyware

D. Ransomware

More, do you know why the correct answer is correct and the incorrect answers are incorrect? The answer and explanation is available at the end of this post.

Security+ Practice Test Questions

SYO-501 Practice Test Questions Now Available

SYO-401 Practice Test Questions

Over 440 realistic Security+ practice test questions

All questions include explanations so you'll know why the correct answers are correct,

and why the incorrect answers are incorrect.

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the First Time You Take It

Multiple quiz formats to let you use these questions based on the way you learn.
  • Learn mode - randomized. View each of the questions in random order. Learn mode allows you to keep selecting answers until you select the correct answer. Once you select the correct answer, you'll see the explanation. Click here to see how learn mode works.
  • Learn mode - not randomized. View each of the questions in the same order. Use this if you want to make sure that you see all of the questions. Learn mode allows you to keep selecting answers until you select the correct answer. Once you select the correct answer, you'll see the explanation. Click here to see how learn mode works.
  • Test mode - randomized. View each of the questions in random order. In test mode, you can only see the correct answers and explanations after you complete the test. Click here to see how test mode works.
  • Test mode - not randomized. View each of the questions in the same order. In test mode, you can only see the correct answers and explanations after you complete the test. Click here to see how test mode works.
  • Test mode - 100 random questions. View 100 random questions from the full test bank similar to how the Security+ exam has a potential maximum of 100 multiple choice questions. In test mode, you can only see the correct answers and explanations after you complete the test. Click here to see how test mode works.

Get the full bank of Security+ (SYO-401) Practice Test Questions Here

 SYO-401 Practice Test Questions


INCLUDES QUESTIONS TO HELP YOU PREPARE

FOR THE NEW PERFORMANCE BASED QUESTIONS 

Bonus - Performance Based Questions

Additional Security+ questions to help you prepare for the new performance based questions. These are included with the full bank of Security+ practice test questions and are divided into different sections. For example, you'll have access to the following links:

- Performance Based Question - Set 1

You'll see a graphic explaining what you might be required to do on the actual exam to match different types of security to mobile devices and servers in a data center. You'll then have two questions that test your knowledge and ability to correctly answer the questions. This question also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 2

You'll see a graphic explaining what you might be required to do on the actual exam to match different types of attacks with the name of the attack type. You'll then have five questions that test your knowledge and ability to correctly answer the questions. This question also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 3

You'll see a graphic showing a network with computers and servers separated by a firewall. The firewall is used to control traffic between the computers and users using rules within an access control list (ACL).  You'll have three questions that test your knowledge and ability to correctly identify the relevant components of the rule. The incorrect answers and explanation provide you with insight into how to correctly answer this type of question on the actual exam.

- Performance Based Question - Set 4

You'll see a graphic explaining what you might be required to do on the actual exam related to what a forensic analyst would do during an investigation. You'll then have two questions that test your knowledge and ability to correctly answer the questions. This question also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 5

You'll see a graphic explaining what you might be required to do on the actual exam to match protocols and ports. You'll then have seven questions that test your knowledge and ability to correctly answer the questions. This question also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 6

You'll see a list of security controls along with a graphic showing devices and locations within an organization, along with instructions on what you might be required to do on the actual exam to match the controls with the devices and locations. You'll then have four questions that test your knowledge and ability to correctly answer the questions. This question also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 7

You'll see a list of authentication methods and authentication factors along with instructions on what you might be required to do on the actual exam to match the authentication methods with the authentication factors. You'll then have six questions that test your knowledge and ability to correctly answer the questions. This set also includes a link to a graphic showing the end solution for the overall performance based question simulation.

- Performance Based Question - Set 8

You'll see a graphic explaining what you might be required to do on the actual exam to match different types of attacks with the name of the attack type. You'll then have five questions that test your knowledge and ability to correctly answer the questions. This is similar to Set 2 but expands on the possibilities. The set also includes a link to a page showing the end solution for the overall performance based question simulation.

New - Performance Based Question - Set 9

New questions recently added using a different testing engine. See a demo here. This set includes drag and drop and matching questions on ports.

New - Performance Based Question - Set 10

A random set of 20 performance-based questions using drag and drop, matching, sorting, and fill in-the blank. This set includes performance-based questions on RAID.

Get the full bank of Security+ (SYO-401) Practice Test Questions Here

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Click here if you're looking for SYO-501 Practice Test Questions

Malware is a significant threat for any organization. Administrators commonly implement layered security, or a defense-in-depth plan, to protect against malware. The following are some common security controls used to protect against malware:

  • Anti-malware software on mail servers. Spam often includes malware as attachments, but anti-malware software can detect and block it. The software strips potentially malicious attachments off the email, and sends a notification to the user explaining what was removed and why.
  • All systems. All workstations and servers have anti-malware software installed. Servers may have additional, specialized anti-malware software installed depending on the applications running on the servers.
  • Boundaries or firewalls. Many networks include detection tools that monitor network traffic through the firewall. For example, unified threat management (UTM) inspects network traffic to reduce the risk of malware entering the network.

Protecting Systems with Anti-Malware Software

Pop-Up Blockers

Most web browsers include a feature to block pop-up ads, and/or support pop-up blocker add-ins that users can configure with the web browser. These block most pop-ups, including the pop-ups described in the “Adware” section of Malware Types Targeting User’s Activity blog post . Most pop-up blockers allow you to list Uniform Resource Locators (URLs) that allow pop-ups, but block all pop-ups that aren’t on the allowed list. This is similar to creating a whitelist of allowed applications.

Logic Bombs

A logic bomb is a string of code embedded into an application or script that will execute in response to an event. The event might be a specific date or time, or a user action such as when a user launches a specific program.

There’s an often-repeated story about a company that decided it had to lay off an engineer due to an economic downturn. His bosses didn’t see him doing much, so they thought they could do without him. Within a couple of weeks after he left, they started having all sorts of computer problems they just couldn’t resolve.

They called him back, and within a couple of weeks, everything was fine. A few months later, they determined they had to lay him off again. You guessed it. Within a couple of weeks, things went haywire again.

The engineer had programmed a logic bomb that executed when the payroll program ran. It checked for his name on the payroll, and when it was there, things were fine, but when his name wasn’t there, ka-boom—the logic bomb exploded.

Remember this

A logic bomb executes in response to an event, such as when a specific application is executed or a specific time arrives.

CompTIA Security+ Study Guide

The 401 Version of the Study Guide

SY0-401 Study GuideThe CompTIA Security+: Get Certified Get Ahead: SY0-401 Study Guide is an update to the top-selling SY0-201 and SY0-301 study guides, which have helped thousands of readers pass the exam the first time they took it.

CompTIA Authorized Quality Content (CAQC)After a comprehensive review by ProCert Labs, the SY0-401 version has been certified as CompTIA Approved Quality Content (CAQC) and covers every aspect of the SY0-401 exam.

It includes the same elements readers raved about in the previous two versions.

Each of the eleven chapters presents topics in an easy to understand manner and includes real-world examples of security principles in action.

You’ll understand the important and relevant security topics for the Security+ exam, without being overloaded with unnecessary details. Additionally, each chapter includes a comprehensive review section to help you focus on what’s important.


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Over 400 realistic practice test questions with in-depth explanations will help you test your comprehension and readiness for the exam. The book includes:

  • A 100 question pre-test
  • A 100 question post-test
  • Practice test questions at the end of every chapter.

Each practice test question includes a detailed explanation to help you understand the content and the reasoning behind the question. You’ll be ready to take and pass the exam the first time you take it.

If you plan to pursue any of the advanced security certifications, this guide will also help you lay a solid foundation of security knowledge. Learn this material, and you’ll be a step ahead for other exams. This SY0-401 study guide is for any IT or security professional interested in advancing in their field, and a must read for anyone striving to master the basics of IT security.

Kindle edition also available.

Are you looking for SYO-501 Study Guide?

The 501 Version of the Study Guide is Now Available. Click Here.

Spam Filters as Anti-Spam Solutions

Organizations often implement a multipronged approach to block spam. For example, many UTM systems include spam filters to detect and block spam. The output of the UTM goes to an email server. Email servers also have methods of detecting and blocking spam. The email server sends all email to the users, except for what it detects as spam. User systems also have anti-spam filters, or junk mail options, as a final check.

The challenge with any spam filter is to only filter out spam, and never filter out actual email. For example, a company wouldn’t want a spam filter to filter out an email from a customer trying to buy something. Because of this, most spam filters err on the side of allowing spam through rather than potentially marking valid email as spam. Although the science behind spam filtering continues to improve, criminals have also continued to adapt.

Get Certified Get Ahead

Spam filters typically allow you to identify email addresses as safe, or to be blocked. You can add these as individual addresses or entire domains. For example, if you want to ensure you get email from Homer when he sends email from springfield.com, you can identify homer@springfield.com as a safe email address. If you want to ensure you get all email from springfield.com, you can designate springfield.com as a safe domain. Similarly, you block either the single email address homer@springfield.com or the entire domain springfield.com.

Anti-Spyware Software

Anti-spyware software emerged as a separate application that targets spyware. It helps protect a user’s personal information while surfing the Internet. The lines between spyware and malware have become blurry, especially since some spyware has started becoming more malicious. Over time, most antivirus software began including anti-spyware elements. However, not all antivirus software protects against spyware, so some users still run separate anti-spyware applications.


Full Security+ (SY0-401) Course

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Helping you Pass the First Time

Online access includes all of the content from the

CompTIA Security+: Get Certified Get Ahead: SY0-401 Study Guide

  • Introduction
  • About the exam (including types of questions and strategies for performance-based questions)
  • 100 question pre-assessment exam
  • Mastering Security Basics (full content from Chapter 1 of the study guide including the exam topic review and 20 practice test questions)
  • Exploring Control Types and Methods (full content from Chapter 2 of the study guide including the exam topic review and 20 practice test questions)
  • Understanding Basic Network Security (full content from Chapter 3 of the study guide including the exam topic review and 20 practice test questions)
  • Securing Your Network (full content from Chapter 4 of the study guide including the exam topic review and 20 practice test questions)
  • Securing Hosts and Data (full content from Chapter 5 of the study guide including the exam topic review and 20 practice test questions)
  • Understanding Malware and Social Engineering (full content from Chapter 6 of the study guide including the exam topic review and 20 practice test questions)
  • Identifying Advanced Attacks (full content from Chapter 7 of the study guide including the exam topic review and 20 practice test questions)
  • Managing Risk (full content from Chapter 8 of the study guide including the exam topic review and 20 practice test questions)
  • Preparing for Business Continuity (full content from Chapter 9 of the study guide including the exam topic review and 20 practice test questions)
  • Understanding Cryptography (full content from Chapter 10 of the study guide including the exam topic review and 20 practice test questions)
  • Exploring Operational Security (full content from Chapter 11 of the study guide including the exam topic review and 20 practice test questions)
  • 100 question post-assessment exam
  • Security+ Acronyms

Get the Full Security+ Course Here

 Full Security+ Course Now Available


Test your readiness with these quality materials

Random 100-question tests

Random practice tests from the all of the practice test questions in the CompTIA Security+: Get Certified Get Ahead: SY0-401 Study Guide. All questions include explanations so you'll know why the correct answers are correct, and why the incorrect answers are incorrect.

34 Simulated Performance-based Questions

Eight sets of performance-based questions with multiple questions in each set. These questions help you understand and prepare for performance based questions.

22 Realistic Performance-based Questions

Two new sets of performance-based questions with a total of 22 questions. These new questions use a new testing engine that includes realistic drag and drop, matching, sorting, and fill in the blank questions.

Flashcard Set

  • 273 Security+ Flashcards to reinforce key testable concepts
  • 280 Security+ acronyms flashcards to help you master the required acronyms
  • 204 Security+ Remember This slides

Audio - SY0-401 Security+ Remember This Audio Files

Learn by Listening. Over one hour and 15 minutes of audio (MP3 downloads.)

Audio - SY0-401 Security+ Question and Answer Audio Files

Learn by Listening. Over three hours hour and 15 minutes of audio (MP3 downloads.)

Bonus #1

Audio from the end of chapter reviews from each of the chapters in the CompTIA Security+: Get Certified Get Ahead: SY0-401 Study Guide. Over one hour and 15 minutes of additional audio.

Bonus #2

Subnetting mini-tutorial that will help you answer two key question types:
  • Identify how many hosts a subnet supports
  • Identify valid IP addresses within a subnet

Bonus #3 

Access the study materials for a total of 60 days because sometimes life happens.

Get the Full Security+ Course Here

Q. Dr. Terwilliger installed code designed to enable his account automatically if he ever lost his job as a sidekick on a television show. The code was designed to reenable his account three days after it is disabled. Which of the following does this describe?

A. Logic bomb

B. Rootkit

C. Spyware

D. Ransomware

Answer is A. A logic bomb is code that executes in response to an event. In this scenario, the logic bomb executes when it discovers the account is disabled (indicating Dr. Bob Terwilliger is no longer employed at the company) and the logic bomb is creating a backdoor. A rootkit includes hidden processes, but it does not activate in response to an event. Spyware is software installed on user systems without their awareness or consent. Its purpose is often to monitor the user’s computer and the user’s activity. Ransomware demands payment as ransom.

See Chapter 6 of the CompTIA Security+: Get Certified Get Ahead: SY0-401 Study Guide

or

Chapter 6 of the CompTIA Security+ Get Certified Get Ahead: SY0-501 Study Guide

for more information on malware and social engineering.

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