A penetration tester is tasked with gaining access to a loca…
A penetration tester is tasked with gaining access to a local machine by cracking a user’s password. Before password cracking can begin, they need to enumerate usernames within the organization. The organization uses a domain-based email format (firstname.lastname@organization.com). After conducting OSINT and obtaining potential email addresses, the tester needs to identify valid usernames. Which of the following is the MOST effective method to proceed with user enumeration in a Windows-based domain?