Welcome to the Reversing Malware MCQs Page

Dive deep into the fascinating world of Reversing Malware with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Reversing Malware, a crucial aspect of Reverse Engineering. In this section, you will encounter a diverse range of MCQs that cover various aspects of Reversing Malware, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Reverse Engineering.

Check out the MCQs below to embark on an enriching journey through Reversing Malware. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Reverse Engineering.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Reversing Malware. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Reversing Malware MCQs | Page 5 of 10

Explore more Topics under Reverse Engineering

01

Introduction to Reverse Engineering

02

Low Level Software 🔒

03

Windows Fundamentals 🔒

04

Reversing Tools 🔒

05

Beyond the Documentation

06

Deciphering File Formats

07

Auditing Program Binaries 🔒

08

Piracy and Copy Protection

09

Antireversing Techniques 🔒

10

Breaking Protections 🔒

11

Reversing .NET 🔒

12

Decompilation

13

Deciphering Code Structures 🔒

14

Understanding Compiled Arithmetic

15

Deciphering Program Data 🔒

Q41.

What is the basic premise of most malware defense strategies?

Leverage the fact that there is always some kind of trusted element in the system

Scan the hard drive for infected files using high-level file-system services

Install itself as a filesystem filter to intercept the antivirus program’s file system calls

None of the above

Discuss

Answer: (a).Leverage the fact that there is always some kind of trusted element in the system Explanation:The basic premise of most malware defense strategies is to leverage the fact that there is always some kind of trusted element in the system.

Q42.

Why would a clever malicious program install itself as a filesystem filter?

To present the antivirus program with fake versions of the files on disk

To hide the fact that it has infected numerous files on the hard drive from the antivirus program

Both a and b

None of the above

Discuss

Answer: (c).Both a and b Explanation:A clever malicious program could install itself as a filesystem filter to intercept the antivirus program’s file system calls and present it with fake versions of the files on disk, thus hiding the fact that it has infected numerous files on the hard drive from the antivirus program.

Q43.

Where must security and antivirus programs reside in order to prevent malicious programs from distorting their view of the system?

At a high level in the operating system kernel

At a low level in the operating system kernel

In the hard drive

None of the above

Discuss

Answer: (b).At a low level in the operating system kernel Explanation:Security and antivirus programs must reside at a low enough level in the operating system kernel so that malicious programs can’t distort their view of the system by implementing file-system filtering or a similar approach.

Q44.

What is firmware?

Low-level instruction code that implements each and every supported assembly language instruction using micro-ops

A high-level file system service

A type of antivirus program

None of the above

Discuss

Answer: (a).Low-level instruction code that implements each and every supported assembly language instruction using micro-ops Explanation:Most modern CPUs run a very low-level code that implements each and every supported assembly language instruction using low-level instructions called micro-ops, and this code is called firmware.

Q45.

Can firmware be updated at the customer site using a special firmware-updating program?

Yes

May be yes or No

None of the above

Discuss

Answer: (a).Yes Explanation:Firmware can usually be updated at the customer site using a special firmware-updating program.

Q46.

What could a clever malicious program do to avoid detection by an antivirus program?

Install itself as a filesystem filter that intercepts file system calls

Create fake versions of infected files on the hard drive

Hide the fact that it has infected numerous files on the hard drive

All of the above

Discuss

Answer: (d).All of the above Explanation:A clever malicious program could install itself as a filesystem filter that intercepts file system calls and present the antivirus program with fake versions of the files on disk, thus hiding the fact that it has infected numerous files on the hard drive.

Q47.

Why must security and antivirus programs reside at a low enough level in the operating system?

To prevent malicious programs from distorting their view of the system

To make them run faster

To encrypt all files on the hard drive

To physically replace the processor to fix software-level bugs

Discuss

Answer: (a).To prevent malicious programs from distorting their view of the system Explanation:Security and antivirus programs must reside at a low enough level in the operating system so that malicious programs cannot distort their view of the system by implementing file-system filtering or a similar approach.

Q48.

At what level could a malicious program theoretically infect a program?

The CPU or other hardware devices that use upgradeable firmware

The software applications running on top of the operating system

The network connection between the computer and the internet

None of the above

Discuss

Answer: (a).The CPU or other hardware devices that use upgradeable firmware Explanation:The lowest level at which a malicious program could theoretically infect a program is the CPU or other hardware devices that use upgradeable firmware.

Q49.

Why is it problematic if a malicious program alters an extremely low-level component?

Antivirus programs would have no way of knowing whether they are seeing an authentic picture of the system or an artificial one painted by a malicious program.

The malicious program would gain unlimited access to the infected machine.

The infected machine would become unavailable due to its Internet connection being saturated.

The owner of the server under attack could become a direct business competitor of the attacker.

Discuss

Answer: (a).Antivirus programs would have no way of knowing whether they are seeing an authentic picture of the system or an artificial one painted by a malicious program. Explanation:If a malicious program alters an extremely low-level component, antivirus programs would have no way of knowing whether they are seeing an authentic picture of the system or an artificial one painted by a malicious program.

Q50.

What is the main goal of backdoor access for many malicious programs?

To gain unlimited access to the infected machine and use it for a variety of purposes.

To damage a public server hosting a website or other publicly available resource.

To steal valuable corporate data.

To allow the attacker to peep into some individual's personal files.

Discuss

Answer: (a).To gain unlimited access to the infected machine and use it for a variety of purposes. Explanation:Backdoor access is a popular end goal for many malicious programs and the attacker gets unlimited access to the infected machine and can use it for a variety of purposes.

Page 5 of 10

Low Level Software 🔒

Windows Fundamentals 🔒

Reversing Tools 🔒

Auditing Program Binaries 🔒

Antireversing Techniques 🔒

Breaking Protections 🔒

Reversing .NET 🔒

Deciphering Code Structures 🔒

Deciphering Program Data 🔒

Welcome to the Reversing Malware MCQs Page

Reversing Malware MCQs | Page 5 of 10

Explore more Topics under Reverse Engineering

Introduction to Reverse Engineering

Beyond the Documentation

Deciphering File Formats

Piracy and Copy Protection

Decompilation

Understanding Compiled Arithmetic

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