ECCouncil Updated 312-38 Exam Questions and Answers by henley

The last step in the incident response methodology, according to the Network Defender (CND) guidelines, is a follow-up. This step is crucial as it involves reviewing and analyzing the incident to understand what happened, how it was handled, and how similar incidents can be prevented in the future. It includes updating incident response plans, improving security measures, and providing training to prevent future incidents.

References: The information aligns with the EC-Council’s Certified Network Defender (CND) program, which emphasizes an incident response life cycle that includes preparation, detection and analysis, containment, eradication and recovery, and post-event activity, where the follow-up is a critical component of post-event activity123.

In Wireshark, to detect TCP Null Scan attempts, the filter used is tcp.flags==0. This filter will show packets where no TCP flags are set, which is indicative of a TCP Null Scan. A TCP Null Scan is a type of network reconnaissance technique where the attacker sends TCP packets with no flags set to the target system. If the target system responds with a RST packet, it indicates that the port is closed, while no response suggests that the port is open or filtered. This method is used because some systems do not log these null packets, allowing the scan to go unnoticed.

References: The information provided is based on standard network security practices for monitoring and analyzing network traffic using Wireshark, as well as the specific details of TCP Null Scans and their detection as outlined in network security resources1.

To check if SMB1 is enabled or disabled, the correct PowerShell command is Get-WindowsOptionalFeature -Online -FeatureName SMB1Protocol. This command queries the status of the SMB1Protocol feature in the running instance of Windows. If SMB1 is enabled, the command will return its status as ‘Enabled’, and if it is disabled, it will return ‘Disabled’.

References: The correct syntax for the command is documented in various official Windows resources, including Microsoft’s own documentation on managing SMB protocols1. It is also aligned with the objectives of the EC-Council’s Certified Network Defender (CND) program, which includes knowledge of managing Windows network protocols and features.

A normal TCP packet is characterized by the proper use of control flags in the TCP header for managing the state of the connection. The FIN and ACK flags are specifically used during the termination phase of a TCP connection. When a session is being closed, a FIN flag is sent to indicate the end of data transmission, and an ACK flag is used to acknowledge the receipt of the FIN flag. This is part of the graceful shutdown process to ensure that both ends of the connection have successfully finished transmitting data.

References: This explanation aligns with the standard TCP connection termination process, where FIN and ACK flags play a crucial role123.