Eccouncil Exam 212-89 Topic 3 Question 68 Discussion

A TCP Xmas scan is a type of network scanning technique used by attackers to identify open ports on a target machine. The name 'Xmas' comes from the set of flags that are turned on within the packet, making it 'lit up like a Christmas tree'. Specifically, the FIN, PSH, and URG flags are set, which corresponds to the hexadecimal value 0X029 in the TCP header's flags field. Wireshark, a popular network protocol analyzer, allows users to create custom filters to detect specific types of network traffic, including malicious scanning attempts. By using the filter tcp.flags==0X029, Rose can detect packets that have these specific flags set, indicating a potential TCP Xmas scan attempt.