A security engineer needs to quickly identify a signature from a known malicious file. Which of the following analysis methods would the security engineer most likely use?

Sandbox analysis involves executing the file in a controlled environment to observe its behavior. While this method can provide valuable insights into the file's actions and potential threats, it is generally slower than static analysis, as it requires the file to run and can take additional time to gather and analyze the behavioral data.

Network traffic analysis focuses on monitoring data packets moving through a network to detect malicious activity or anomalies. While it can be useful for identifying threats in real-time, it does not directly analyze the file itself and is not the most efficient method for quickly identifying signatures from a specific file.

Package monitoring typically refers to tracking software installations or updates, often to ensure compliance or detect changes in software packages. This method does not directly relate to analyzing a specific file for malicious signatures and would not be appropriate for the task at hand.