Course description
This course demonstrates how to identify each user account on a local machine using the relative identifier. Examiners can also learn to interpret username information including the users’ login dates, times and login count. The course will show how to identify the machine that the user account was created on, by interpreting a users’ SIDs (machine/domain identifiers) and recovering user password hashes.

Syllabus
SAM File Overview
Video — 00:07:50
An overview of the security account manager (SAM file). Tracks information regarding user accounts on the local system.
Security Identifiers
Video — 00:07:11
Explore security identifiers, which identify the machine that the user account was created on. These are helpful to identify remote users and Microsoft accounts that were created on another system.
User Accounts (RIDs)
Video — 00:12:22
In this video, you’ll look at RIDs. These identify an individual user on a local machine.
Password Hashes
Video — 00:04:08
In this video, you’ll look at an explanation of how user password hashes are stored on the local machine and how to extract the password hash.
Other Types of User Accounts
Video — 00:18:37
This video provides an overview of how to locate the identifiers of domain user accounts on a local machine. Includes an explanation of user groups and permissions.

Meet the author
In addition to being an Infosec instructor, Denise Duffy teaches computer forensics worldwide to European law enforcement through the European Anti-Fraud Office. During her 25-year career at the Middletown Police Department, Denise underwent extensive training in specialized computer and mobile device forensics, including widespread access data courses, multiple IACIS trainings, U.S. Secret Service Training at the National Computer Forensics Institute, BlackBag Technologies Training, many National White Collar Crime (NW3C) courses, an X-Ways online course and considerable Internet Crimes Against Children Training (ICAC) courses.
Denise currently holds the following certifications: CFCE (Certified Forensic Computer Examiner), CCFE (Certified Computer Forensics Examiner), CMFE (Certified Mobile Forensics Examiner) and CEH (Certified Ethical Hacker). She is most proud of her two sons who joined the U.S. Military, as Denise is a Desert Shield/Desert Storm veteran herself.
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We use Infosec Skills to provide continuous training to our technicians and to prepare them for various certifications. Infosec Skills allows us to create personalized training programs that focus on each of our technicians’ particular roles and see their progress as they take courses. We also, recommend it to clients to make their IT support teams better.
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This has been utilized to bridge the skills gap across our cyber team and to aid them as they prepare for their various certifications. It also has provided a nice learning foundation for our various cyber team members to utilize as we continue to find ways for cross-utilization with operations while minimizing the downtime needed to ensure everyone’s knowledge is the same.
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