Certified Ethical Hacker (CEH v12) — Question 48

Allen, a professional pen tester, was hired by XpertTech Solutions to perform an attack simulation on the organization’s network resources. To perform the attack, he took advantage of the NetBIOS API and targeted the NetBIOS service. By enumerating NetBIOS, he found that port 139 was open and could see the resources that could be accessed or viewed on a remote system. He came across many NetBIOS codes during enumeration.
Identify the NetBIOS code used for obtaining the messenger service running for the logged-in user?

Answer options

• A. <00>
• B. <20>
• C. <03>
• D. <1B>

Correct answer: C

Explanation

The correct answer is <03>, which is the NetBIOS code that corresponds to the messenger service. The other codes, <00>, <20>, and <1B>, are associated with different services and functionalities within the NetBIOS framework, such as domain name services and file sharing, and thus do not pertain to the messenger service.