CPTIA Exam Dumps : CREST Practitioner Threat Intelligence Analyst

Netcraft is a tool that provides internet security services, including the detection of phishing and spam emails. It offers a range of services that can help organizations identify fraudulent websites and phishing activities by analyzing web content and email messages for known phishing signatures and heuristics. This makes it a useful tool for incident handlers like Francis, who is tasked with detecting phishing and spam emails for client organizations. Other options listed, such as Nessus (a vulnerability scanner), BTCrack (a Bluetooth pin and link-key cracker), and Cain and Abel (a password recovery tool), do not specialize in detecting phishing or spam emails but serve different purposes in cybersecurity.References:The Incident Handler (CREST CPTIA) curriculum includes discussions on tools and methodologies for detecting and mitigating various cyber threats, including phishing and spam, highlighting tools like Netcraft for their utility in these areas.

True attribution in the context of cyber threats involves identifying the actual individual, group, or nation-state behind an attack or intrusion. This type of attribution goes beyond associating an attack with certain tactics, techniques, and procedures (TTPs) or a known group and aims to pinpoint the real-world entity responsible. True attribution ischallenging due to the anonymity of the internet and the use of obfuscation techniques by attackers, but it is crucial for understanding the motive behind an attack and for forming appropriate responses at diplomatic, law enforcement, or cybersecurity levels.References:

"Attribution of Cyber Attacks: A Framework for an Evidence-Based Analysis" by Jason Healey

"The Challenges of Attribution in Cyberspace" in the Journal of Cyber Policy

The attack described, where multiple connection requests from different geo-locations are received by a server within a short time span leading to stress and reduced performance, is indicative of a Distributed Denial-of-Service (DDoS) attack. In a DDoS attack, the attacker floods the target's resources (such as a server) with excessive requests from multiple sources, making it difficult for the server to handle legitimate traffic, leading to degradation or outright unavailability of service. The use of multiple geo-locations for the attack sources is a common characteristic of DDoS attacks, making them harder to mitigate.References:

"Understanding Denial-of-Service Attacks," US-CERT

"DDoS Quick Guide," DHS/NCCIC