Welcome to the Auditing Program Binaries MCQs Page

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

Auditing Program Binaries MCQs | Page 5 of 8

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Q41.

What is the purpose of the cookie used in stack checking?

To validate the return value

To prevent buffer overflow bugs

To generate random numbers

To execute malicious code

Discuss

Answer: (a).To validate the return value Explanation:The purpose of the cookie used in stack checking is to validate the return value.

Q42.

Why does the cookie used in stack checking need to be a random number?

To prevent an attacker from adding the cookie’s value to the overflowing payload and bypassing the stack protection.

To stop program execution immediately

To generate random numbers for the stack

To execute malicious code

Discuss

Answer: (a).To prevent an attacker from adding the cookie’s value to the overflowing payload and bypassing the stack protection. Explanation:The cookie used in stack checking needs to be a random number to prevent an attacker from adding the cookie’s value to the overflowing payload and bypassing the stack protection.

Q43.

How does the use of a pseudorandom number as a cookie prevent an attacker from fooling the cookie verification code?

The attacker has no way of knowing in advance what the cookie is going to be.

The attacker can add the cookie’s value to the overflowing payload.

The attacker can stop program execution immediately.

The attacker can execute malicious code.

Discuss

Answer: (a).The attacker has no way of knowing in advance what the cookie is going to be. Explanation:The use of a pseudorandom number as a cookie prevents an attacker from fooling the cookie verification code because the attacker has no way of knowing in advance what the cookie is going to be.

Q44.

What is stack checking?

A technique to prevent buffer overflow bugs

A technique to detect buffer overflow bugs

A technique to fix buffer overflow bugs

A technique to cause buffer overflow bugs

Discuss

Answer: (a).A technique to prevent buffer overflow bugs Explanation:Stack checking is a technique that aims to prevent buffer overflow bugs.

Q45.

How does stack checking work?

By pushing an extra cookie or canary to the stack between the last local variable and the function’s return address

By using a random number as a cookie

By validating the cookie before the function returns to the caller

All of the above

Discuss

Answer: (d).All of the above Explanation:Stack checking works by pushing an extra cookie or canary to the stack between the last local variable and the function’s return address, using a random number as a cookie, and validating the cookie before the function returns to the caller.

Q46.

Why must the cookie be a random number in stack checking?

To make it more difficult for an attacker to bypass the stack protection

To make it easier for an attacker to bypass the stack protection

To make the code more efficient

None of the above

Discuss

Answer: (a).To make it more difficult for an attacker to bypass the stack protection Explanation:The cookie must be a random number to make it more difficult for an attacker to bypass the stack protection.

Q47.

Can stack checking completely eliminate the problem of buffer overflow bugs?

Yes

May be Yes or No

Can't say

Discuss

Answer: (b).No Explanation:Stack checking does not completely eliminate the problem of buffer overflow bugs, but it does somewhat reduce the total number of possible exploits in a program.

Q48.

How can an attacker defeat stack checking?

By overwriting the area in the stack where parameters were passed to the function

By using a specially crafted buffer to overwrite the memory address used for returning values to the caller

By figuring out an address to write to in memory that would allow them to run their own code before the process is terminated by the stack-checking code

All of the above

Discuss

Answer: (d).All of the above Explanation:Attackers can defeat stack checking by overwriting the area in the stack where parameters were passed to the function, using a specially crafted buffer to overwrite the memory address used for returning values to the caller, and figuring out an address to write to in memory that would allow them to run their own code before the process is terminated by the stack-checking code.

Q49.

What is nonexecutable memory?

Memory that can only be used for storing data

Memory that can only be used for running code

Memory that can be used for both storing data and running code

None of the above

Discuss

Answer: (a).Memory that can only be used for storing data Explanation:Nonexecutable memory is memory that can only be used for storing data and cannot be used for running code.

Q50.

Which processors provide support for nonexecutable memory?

Only recent versions of Intel processors

Only IA-64 Intel processors

Only AMD processors

Many new processors, including recent versions of Intel and AMD processors, and the IA-64 Intel processors

Discuss

Answer: (d).Many new processors, including recent versions of Intel and AMD processors, and the IA-64 Intel processors Explanation:Many new processors, including recent versions of Intel and AMD processors, and the IA-64 Intel processors provide support for nonexecutable memory.

Page 5 of 8

Low Level Software 🔒

Windows Fundamentals 🔒

Reversing Tools 🔒

Reversing Malware 🔒

Antireversing Techniques 🔒

Breaking Protections 🔒

Reversing .NET 🔒

Deciphering Code Structures 🔒

Deciphering Program Data 🔒

Welcome to the Auditing Program Binaries MCQs Page

Auditing Program Binaries MCQs | Page 5 of 8

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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