The investigator is focusing on the file creation time (birth), last accessed time, and file modification time. The Sleuth Kit's mactime tool is specifically designed to create a chronological timeline of file system activity by parsing the MACB (Modified, Accessed, Changed, Birth) timestamps extracted from the file system's metadata. The fls tool extracts this metadata, including timestamps, from a disk image, and mactime organizes it to help reconstruct the sequence of events, which is the investigator's goal.

B. This is too general; the specific focus of mactime is on the timestamps within the metadata, not the entire internal structure.

C. System boot and shutdown times are found in system logs or the registry, not analyzed directly from file system metadata by fls and mactime.

D. Windows event logs are a separate source of evidence; fls and mactime operate on the raw file system data, not the event log files.

- Carrier

B. (2005). File System Forensic Analysis. Addison-Wesley Professional. In Chapter 12

"Timelines

" Carrier explains

"The mactime tool... creates a timeline of file activity based on the MAC times in a body file." (p. 315).

- The Sleuth Kit (TSK) Wiki. (n.d.). Mactime. Retrieved from https://wiki.sleuthkit.org/index.php?title=Mactime. The official documentation states

"Mactime creates an ASCII time line of file activity based on the body file generated by fls." It details the collection of modified

access

and change times.

- MIT OpenCourseWare. (2014). 6.858 Computer Systems Security

Lecture 18: Digital Forensics. Massachusetts Institute of Technology. The lecture notes discuss timeline analysis using tools like mactime to sort events based on file MAC timestamps.