ECCouncil Updated 212-89 Exam Questions and Answers by kiyaan

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 filtertcp.flags==0X029, Rose can detect packets that have these specific flags set, indicating a potential TCP Xmas scan attempt.

A Trojan attack involves a type of malicious code or software that appears legitimate but can take control of your computer. Trojans often disguise themselves as legitimate software or are hidden within legitimate software that has been tampered with. They differ from viruses and worms because they do not replicate. However, once activated, Trojans can enable cyber-criminals to spy on you, steal your sensitive data, and gain backdoor access to your system. This can include unauthorized actions such as deleting files, monitoring user activities, or installing additional malicious software.

By classifying and encrypting customer Personally Identifiable Information (PHI), you are specifically guarding against the risk of Sensitive Data Exposure. This OWASP security risk involves the accidental or unlawful exposure of protected data to unauthorized individuals. Encryption serves as a critical defense mechanism by ensuring that, even if data is accessed without authorization, it remains unintelligible and useless to the attacker without the decryption keys. Data classification further supports this by identifying which data is sensitive and requires such protections, ensuring that appropriate security controls are applied to prevent exposure.

One of the key approaches to mitigating insider threats is ensuring that access control policies are strictly implemented and monitored. This includes the guideline that access granted to users should be thoroughly documented and vetted by a supervisor. This control helps ensure that users have only the access necessary to perform their job functions, reducing the risk of inappropriate access or misuse of information. Proper documentation and supervisor approval also ensure accountability and traceability of access decisions, which is crucial for detecting and responding to insider threats. The human resources department plays a vital role in this process, working closely with IT and security teams to enforce access control policies, conduct regular reviews of access rights, and manage the onboarding and offboarding process to ensure that access rights are appropriately updated.