Welcome to the Antireversing Techniques MCQs Page

Dive deep into the fascinating world of Antireversing Techniques with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Antireversing Techniques, a crucial aspect of Reverse Engineering. In this section, you will encounter a diverse range of MCQs that cover various aspects of Antireversing Techniques, 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 Antireversing Techniques. 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 Antireversing Techniques. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Antireversing Techniques MCQs | Page 13 of 15

Explore more Topics under Reverse Engineering

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Introduction to Reverse Engineering

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Low Level Software 🔒

03

Windows Fundamentals 🔒

04

Reversing Tools 🔒

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07

Auditing Program Binaries 🔒

08

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11

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Deciphering Code Structures 🔒

14

Understanding Compiled Arithmetic

15

Deciphering Program Data 🔒

Q121.

How can inlining and outlining be combined to create an effective obfuscation technique?

By duplicating random pieces of code and creating dedicated functions for them

By replacing every call into a function with an actual in-place copy of it and then outlining the duplicated functions

By eliminating the internal abstractions created by the software developer and then outlining the code sequences

None of the above

Discuss

Answer: (b).By replacing every call into a function with an actual in-place copy of it and then outlining the duplicated functions Explanation:One interesting enhancement suggested in [Collberg3] is to combine inlining with outlining in order to create a highly potent transformation. This means that you replace every call into a function with an actual in-place copy of it and then outline the duplicated functions.

Q122.

What is code interleaving?

A technique to make code execution faster

A technique to make code smaller in size

A technique to make code difficult to read

A technique to make code more efficient

Discuss

Answer: (c).A technique to make code difficult to read Explanation:Code interleaving is a technique to interleave the implementations of two or more functions so that they become difficult to read.

Q123.

Why is code interleaving considered a potent obfuscation technique?

Because it makes code execution faster

Because it makes code smaller in size

Because it makes code difficult to read

Because it makes code more efficient

Discuss

Answer: (c).Because it makes code difficult to read Explanation:Code interleaving is considered a potent obfuscation technique because it makes the code difficult to read.

Q124.

What is an opaque predicate in the context of code interleaving?

A function that is difficult to read

A function that is easy to read

A jump that is difficult to identify

A jump that is easy to identify

Discuss

Answer: (c).A jump that is difficult to identify Explanation:An opaque predicate in the context of code interleaving is a jump that is difficult to identify and follows each function segment.

Q125.

Why is an unconditional jump not used in place of an opaque predicate?

Because it would make code execution slower

Because it would make code larger in size

Because it would make automated deobfuscation trivial

Because it would make the code too difficult to read

Discuss

Answer: (c).Because it would make automated deobfuscation trivial Explanation:An unconditional jump is not used in place of an opaque predicate because it would make automated deobfuscation trivial.

Q126.

What determines the effectiveness of opaque predicates in fooling human reversers?

How confusing they are

How simple they are

How small they are

How efficient they are

Discuss

Answer: (a).How confusing they are Explanation:The effectiveness of opaque predicates in fooling human reversers depends on how confusing they are.

Q127.

What is an additional obfuscation technique that can be used in conjunction with code interleaving?

Inlining

Outlining

Loop unrolling

Sharing the same entry point and adding a parameter

Discuss

Answer: (d).Sharing the same entry point and adding a parameter Explanation:An additional obfuscation technique that can be used in conjunction with code interleaving is sharing the same entry point and adding a parameter to tell the new function which of the code paths to take.

Q128.

What is the advantage of using the additional obfuscation technique with code interleaving?

It makes the code execution faster

It makes the code smaller in size

It makes the code more efficient

It can be highly confusing if the functions are functionally irrelevant

Discuss

Answer: (d).It can be highly confusing if the functions are functionally irrelevant Explanation:The advantage of using the additional obfuscation technique with code interleaving is that it can be highly confusing if the functions are functionally irrelevant.

Q129.

What is the purpose of ordering transformations?

To improve runtime performance

To confuse human reversers

To make code more readable

To reduce code size

Discuss

Answer: (b).To confuse human reversers Explanation:The purpose of ordering transformations is to shuffle the order of operations in a program, making it more difficult for human reversers to understand.

Q130.

Why is it not always possible to change the order of operations in a program?

Because ordering transformations are irrelevant for automated obfuscation tools

Because many program operations are codependent

Because it would reduce code size

Because it would improve runtime performance

Discuss

Answer: (b).Because many program operations are codependent Explanation:Many program operations are codependent, meaning they rely on the order in which they are executed, so it is not always possible to change their order without affecting program functionality.

Page 13 of 15

Low Level Software 🔒

Windows Fundamentals 🔒

Reversing Tools 🔒

Auditing Program Binaries 🔒

Reversing Malware 🔒

Breaking Protections 🔒

Reversing .NET 🔒

Deciphering Code Structures 🔒

Deciphering Program Data 🔒

Welcome to the Antireversing Techniques MCQs Page

Antireversing Techniques MCQs | Page 13 of 15

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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