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 6 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 🔒

Q51.

What are Denial-of-Service (DoS) attacks?

Attacks aimed at damaging a public server hosting a Web site or other publicly available resource

Attacks aimed at stealing valuable corporate data

Attacks aimed at allowing the attacker to peep into some individual's personal files

Attacks aimed at installing a backdoor access to files on infected machines

Discuss

Answer: (a).Attacks aimed at damaging a public server hosting a Web site or other publicly available resource Explanation:Denial-of-Service (DoS) attacks are aimed at damaging a public server hosting a Web site or other publicly available resource.

Q52.

What is the basic problem with malware?

It is too difficult to create

It is vulnerable to reversing

It is too easy to hide from end users

It cannot access code or data in the program

Discuss

Answer: (b).It is vulnerable to reversing Explanation:Malware suffers from the same basic problem as copy protection technologies—they run on untrusted platforms and are therefore vulnerable to reversing.

Q53.

Why can't encryption-based approaches address the vulnerability of malware?

The CPU cannot decrypt and access code or data in the program

Malware is too complex for encryption

Encryption is not powerful enough to protect against malware

Encryption makes it too difficult to analyze malware

Discuss

Answer: (a).The CPU cannot decrypt and access code or data in the program Explanation:No encryption-based approach can address this problem because it is always going to have to remain possible for the system’s CPU to decrypt and access any code or data in the program.

Q54.

What are some ways to hide malicious software?

Embedding it in an operating system component

Giving it a benign name

Both a and b

None of the above

Discuss

Answer: (c).Both a and b Explanation:Hiding the program can be as simple as naming it in a way that would make end users think it is benign, or even embedding it in some operating system component, so that it becomes completely invisible to the end user.

Q55.

What is the most powerful analysis method for analyzing malware?

Network- and file-monitoring programs

System tools

Code-level analysis

Conventional code reversing

Discuss

Answer: (c).Code-level analysis Explanation:Still, the most powerful analysis method remains code-level analysis.

Q56.

What are antireversing techniques?

Techniques that scramble and complicate the code in ways that prolong the analysis process

Techniques that prevent any analysis of malware

Techniques that make it easy to analyze malware

Techniques that hide malware from end users

Discuss

Answer: (a).Techniques that scramble and complicate the code in ways that prolong the analysis process Explanation:These are techniques that attempt to scramble and complicate the code in ways that prolong the analysis process.

Q57.

What is the easiest way for antivirus programs to identify malicious programs?

By using encryption-based approaches.

By using polymorphism.

By maintaining a database of virus signatures.

By analyzing system tools.

Discuss

Answer: (c).By maintaining a database of virus signatures. Explanation:The easiest way for antivirus programs to identify malicious programs is by using unique signatures. Antivirus programs maintain a frequently updated database of virus signatures, which aims to contain a unique identification for every known malware program. This identification is based on a unique sequence that was found in a particular strand of the malicious program.

Q58.

What is polymorphism?

A technique that thwarts signature-based identification programs by encrypting the program code.

A technique that thwarts signature-based identification programs by decoding the program code.

A technique that thwarts signature-based identification programs by deleting the program code.

A technique that thwarts signature-based identification programs by modifying the program code.

Discuss

Answer: (a).A technique that thwarts signature-based identification programs by encrypting the program code. Explanation:Polymorphism is a technique used by malware to evade signature-based detection by encrypting the program code in a way that maintains its original functionality. This makes each copy of the malware appear different, making it difficult for antivirus programs to recognize and identify it using traditional signature-based methods.

Q59.

What is the weakness of polymorphism-based solutions?

The antivirus programs might scan for virus signatures in memory.

The decryption code is dynamic.

The decryption code is not required to run the program.

The decryption code is encrypted using a random key.

Discuss

Answer: (a).The antivirus programs might scan for virus signatures in memory. Explanation:The weakness of polymorphism-based solutions is that antivirus programs might scan for virus signatures in memory, which means that if the program is present in memory in its original, unencrypted form, the antivirus program won't have a problem matching the running program with the signature it has on file.

Q60.

How does polymorphism prolong the analysis process of a malicious program?

By encrypting the program using a static key.

By decrypting the program at runtime.

By maintaining the original functionality of the program.

By encrypting the program using a random key.

Discuss

Answer: (d).By encrypting the program using a random key. Explanation:Polymorphism prolongs the analysis process of a malicious program by encrypting the program using a random key, which makes each copy of the program entirely different and prevents accurate identification of the program through virus signatures.

Page 6 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 6 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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