Do You WannaCry?

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Are you one of the more than 200,000 users in over 150 countries that WannaCry today?

On May 12, the WannaCry ransomware began infecting computers around the world. This malware infects systems, encrypts user files, and demands a payment of about $300 within three days.

If the user doesn’t pay within 3 days, the ransom doubles to $600.

If the user doesn’t pay within 7 days, the attackers threaten to delete the files forever.

This is enough to make a lot of people wannacry.

While the FBI and other law enforcement officials encourage people not to pay these ransoms, some estimates indicate that as many as half the people infected do pay.

If half of the infected users (100,000) pay the $300 ransom, this nets the attackers $30 million in less than a week.

It’s also worth noting that the number of infected users continues to climb.

Can You Answer this Question?

The following practice test question (taken from the CompTIA Security+: Get Certified Get Ahead: SY0-401 Study Guide) is highly relevant to this attack. Do you know the answer?

Q. A recent risk assessment identified several problems with servers in your organization. They occasionally reboot on their own and the operating systems do not have current security fixes. Administrators have had to rebuild some servers from scratch due to mysterious problems. Which of the following solutions will mitigate these problems?

A. Virtualization

B. Sandboxing

C. IDS

D. Patch management

You can view the full answer and explanation at the end of this post.

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WannaCry is 100 Percent Preventable

This attack was 100 percent preventable if users followed one simple security practice – keep systems up-to-date with current patches.

WannaCry exploits a known vulnerability in Windows systems. Microsoft released a security update for this on March 14, 2017. Systems that had this security update installed were NOT vulnerable to this attack.

However, many users don’t recognize the importance of keeping their systems up-to-date so skip this practice.

Microsoft stopped support for older Windows systems such as Windows XP, Windows 8, and Windows Server 2003. Some people chose not to update their operating system, and if they were running one of these older systems, they were vulnerable. However, Microsoft recently took the unusual step of creating updates for these legacy operating systems.

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Over 440 realistic Security+ practice test questions

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

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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.
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  • 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.

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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

Just Don’t Click

This is a message that many people don’t seem to understand:

One click is all it takes to infect an unprotected computer.

In this blog post, I outlined the process some advanced persistent threats (APTs) have used to infect computers. They send a spear phishing email to users with a malicious link. If the user clicks, it can sometimes start a drive-by download that installs malware on the user’s computer without the users knowledge.

I frequently get emails that look like they are from friends or family, but are malicious.

As an example, imagine my friend Lisa Simpson just posted on her Facebook about a new saxophone she bought. I then like her post. Attackers now recognize a relationship between us and craft an email that looks like it is from Lisa Simpson

——————–

From: Lisa Simpson

Hey Darril,

Check out this link. I think you’ll like it. 

Lisa

——————-

Imagine I know that Lisa’s email is lisa@simpson.com. However, if I look at the actual email address that this is from, I’ll see that is something completely different such as doyou@wannacry.com.

However, uninformed users may easily click on the link.

As another example, I recently received an email that was sent to hundreds of people in a Meetup group. The text was:

Hey! I’ve found some information that may be helpful for you…

It looked suspicious to me and I sent a note to the Meetup organizer encouraging him to warn people not to click the link. I mentioned “Anyone that clicks it may inadvertently download malware onto their system.” I don’t think he believed me. He sent a not to everyone stressing that he didn’t send it, but didn’t include the warning.

One last example. Nextdoor.com allows people to join neighborhood groups and share information with each other. One user posted information on a secret shopper program that she heard about and wanted to share with others. She later posted an apology for sharing the link because she now understood it was malicious. Also, others in the group later said that WannaCry ruined their day.

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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

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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

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Subnetting mini-tutorial that will help you answer two key question types:
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Q. A recent risk assessment identified several problems with servers in your organization. They occasionally reboot on their own and the operating systems do not have current security fixes. Administrators have had to rebuild some servers from scratch due to mysterious problems. Which of the following solutions will mitigate these problems?

A. Virtualization

B. Sandboxing

C. IDS

D. Patch management

A. D. Patch management procedures ensure that systems are kept up to date with current security fixes and patches and help eliminate problems with known attack methods. For example, patched computers are not vulnerable to this version of the WannaCry ransomware.

The scenario indicates that these systems have been attacked, exploiting the vulnerabilities caused by not patching them.

Virtualization will have the same problems if the systems are not kept up to date.

Sandboxing isolates systems for testing, but there isn’t any indication these servers should be isolated.

An intrusion detection system (IDS) might identify some attacks, but the systems will still be exploited if they aren’t patched.

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