WGU C840 Digital Forensics in Cybersecurity (1 Completed Essay)

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DIGITAL FORENSIC REPORT BY RICKY GALAN 1
Digital Forensic Investigation into John Smith
WGU C840 Digital Forensics in Cybersecurity
Background
John Smith, who worked for the oil company as a research engineer, is suspected of possible
illegal data exfiltration of proprietary information. The oil company has hired D&B Investigation
to investigate. Lead investigator is Ricky Galan. Forensic evidence was captured on-site from a
device used by John Smith. Analysis is to be conducted at D&B Investigation’s lab, accredited
by The American Society of Crime Laboratory Directors (ASCLD).
To perform an effective and competent investigation, Encase Evidence Examiner was used to
recover and examine files from the device used in connection with the suspect and case.
Evidence Gathering
The oil company furnished the device used by John Smith to be used to conduct the
investigation. A chain of custody form was filled out by D&B Lead investigator Ricky Galan and
the oil company’s Head of Security, John Doe. Photos of equipment were taken prior to all
movement of said equipment to the lab.
Analysis
The image file JSmith 1 GB was created and loaded into the Encase Evidence Examiner (E3)
software (Figure 1).
DIGITAL FORENSIC REPORT BY RICKY GALAN 2
Figure 1
A SHA-1 hash (531C1F27A5E5E2FB0D75BB5584071FDDF6B06342) was generated using the
Microsoft File Explorer built-in Cyclical Redundancy Checker (CRC) (Figure 2).
Figure 2
This hash was verified using the software AccessData FTK Imager (Figure 3).

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