200-201 Question 32
Single answerDuring an investigation of a suspicious executable file, a cybersecurity analyst decides to perform reverse engineering. Which of the following tools or techniques would be most appropriate for analyzing the binary code of the file to uncover its functionality?
- A
Static analysis using a disassembler like IDA Pro
- B
Scanning the file with an antivirus tool
- C
Monitoring runtime behavior using a sandbox environment
- D
Performing a port scan on the system where the file is stored
Show answer and explanation
Correct answer: A
Explanation
Reverse engineering involves gaining insights into the functionality and structure of a binary file. Tools like IDA Pro enable static analysis, which is crucial in reverse engineering as it allows analysts to dissect the code without executing it. This is distinct from other techniques like dynamic analysis, antivirus scanning, or unrelated activities like port scanning.
- A. Correct.
Static analysis with a disassembler like IDA Pro is a key reverse engineering technique. It allows the analyst to examine the binary code without executing it, helping to understand the file's functionality and potential malicious behavior.
- B. Incorrect.
While scanning with an antivirus tool can detect known threats, it does not involve reverse engineering or analyzing the structure or functionality of the binary.
- C. Incorrect.
Monitoring runtime behavior in a sandbox environment is a form of dynamic analysis, which complements reverse engineering but is not specifically about analyzing the binary code itself.
- D. Incorrect.
Performing a port scan on the system is unrelated to reverse engineering a binary file. Port scans are used to discover open ports and services on a networked system.