CS0-003 Exam - Question 19

C) Reverse engineering. From Certmaster Topic 5B: Understanding Vulnerability Scanning Methods: Reverse Engineering Reverse engineering describes deconstructing software and/or hardware to determine how it is crafted. Reverse engineering's objective is to determine how much information can be extracted from delivered software. For example, reverse engineering can sometimes extract source code, identify software methods and languages used, developer comments, variable names and types, system and web calls, and many other things. An adversary can perform reverse engineering on a software patch to identify the vulnerabilities it is crafted to fix, or an analyst can perform reverse engineering on malware to determine how it operates.

C. Reverse engineering

Static analysis is typically done when you have the source code in front of you. This is a precompiled binary, you won't know its librares, functions, system calls, etc. without reverse engineering of some kind. Typically what you'll do is put it in some sort of sandbox and see what it beacons, etc. I guess you can call that reverse engineering, so C would be the best answer here.

static analysis involves examining the file’s code without executing it. This technique helps identify the file’s structure, such as its functions, libraries, and system calls. https://www.varonis.com/blog/malware-analysis-tools

B and C are both correct but C: reverse engineering is the "best" method.

Static analysis involves examining the binary file without executing it. This can provide valuable information such as headers, sections, imported and exported functions, strings, and other binary characteristics. It’s a safe and effective first step in malware analysis because it doesn’t involve running the potentially harmful code. And then the reason I would not choose C is because Reverse Engineering: This is a more advanced technique that involves disassembling or decompiling the code to understand its operation. It’s typically used after static and dynamic analysis.

C. Reverse engineering

Reverse engineering is the process of analyzing a binary file to understand its structure, functionality, and behavior. This typically involves disassembling or decompiling the binary file to extract higher-level representations, such as assembly code or source code. Reverse engineering allows analysts to uncover the inner workings of the binary, identify malicious functionality, and develop countermeasures or detection signatures. Therefore, it is the most appropriate technique for analyzing a malicious binary file.

Reverse engineering is the process of decompiling a program to its source code, or of analyzing a binary file to understand its function. This is the best technique to perform the analysis of a malicious binary file, as it allows the analyst to see the code that the malware is actually running. This can help the analyst to identify the malware's purpose, its capabilities, and how it spread

B. Static Analysis. Before you start reverse engineering malware you have find evidence that points to the binary being potentially malicious.

Question is about best way to analyze binary file and it is reverse engineering. Static analysis can also analyze but RE is better option.

Given the context of needing to analyze a known malicious binary file, B. Static analysis should be the initial technique used to safely examine the file, followed by C. Reverse engineering for a more in-depth understanding of the malware's functionality. Both methods are crucial for a comprehensive analysis of the malicious binary without the risk of executing the malware during the process.

FROM: CompTIA CySA+ Study Guide: Exam CS0-003, Third Edition Technologists seeking to reverse-engineer compiled code have two options. First, they can attempt to use a specialized program known as a decompiler to convert the binary code back to source code. Unfortunately, however, this process usually does not work very well. Second, they can use a specialized environment and carefully monitor how software responds to different inputs in an attempt to discover its inner workings. In either case, reverse engineering compiled software is extremely difficult. Understand how reverse engineering techniques attempt to determine how hardware and software function internally. Sandboxing is an approach used to detect malicious software based on its behavior rather than its signatures. Other reverse engineering techniques are difficult to perform, are often unsuccessful, and are quite time-consuming.

C. Reverse engineering

What is right answer B or C?

static analysis (static code analysis)Static analysis, also called static code analysis, is a method of computer program debugging that is done by examining the code without executing the program. The process provides an understanding of the code structure and can help ensure that the code adheres to industry standards. Static analysis is used in software engineering by software development and quality assurance teams. Automated tools can assist programmers and developers in carrying out static analysis. The software will scan all code in a project to check for vulnerabilities while validating the code.https://www.techtarget.com/whatis/definition/static-analysis-static-code-analysis A and B are the same think, Static analysis or Code Analysis means the same the, the names are used interchangeably. Therefore C is the best correct answer.

I passed with 900 points. The correct answer to this question is static analysis, not reverse engineering. I believe reverse engineering is the term for analyzing software.