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NEW QUESTION # 77
A threat analyst obtains an intelligence related to a threat, where the data is sent in the form of a connection request from a remote host to the server. From this data, he obtains only the IP address of the source and destination but no contextual information. While processing this data, he obtains contextual information stating that multiple connection requests from different geo-locations are received by the server within a short time span, and as a result, the server is stressed and gradually its performance has reduced. He further performed analysis on the information based on the past and present experience and concludes the attack experienced by the client organization.
Which of the following attacks is performed on the client organization?
Answer: C
Explanation:
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
NEW QUESTION # 78
Lizzy, an analyst, wants to recognize the level of risks to the organization so as to plan countermeasures against cyber attacks. She used a threat modelling methodology where she performed the following stages:
Stage 1: Build asset-based threat profiles
Stage 2: Identify infrastructure vulnerabilities
Stage 3: Develop security strategy and plans
Which of the following threat modelling methodologies was used by Lizzy in the aforementioned scenario?
Answer: D
Explanation:
The threat modeling methodology employed by Lizzy, which involves building asset-based threat profiles, identifying infrastructure vulnerabilities, and developing security strategies and plans, aligns with the OCTAVE (Operationally Critical Threat, Asset, and Vulnerability Evaluation) methodology. OCTAVE focuses on organizational risk and security practices, emphasizing self-directed risk assessments to identify and prioritize threats to organizational assets and develop appropriate security strategies and plans. This methodology is asset-driven and revolves around understanding critical assets, identifying threats to those assets, and assessing vulnerabilities, leading to the development of a comprehensive security strategy.
References:
* The CERT Guide to System and Network Security Practices by Julia H. Allen
* "OCTAVE Method Implementation Guide Version 2.0," Carnegie Mellon University, Software Engineering Institute
NEW QUESTION # 79
Jason is an incident handler dealing with malware incidents. He was asked to perform memory dump analysis in order to collect the information about the basic functionality of any program. As a part of his assignment, he needs to perform string search analysis to search for the malicious string that could determine harmful actions that a program can perform. Which of the following string-searching tools Jason needs to use to do the intended task?
Answer: C
Explanation:
BinText is a lightweight text extraction tool that can be used to perform string search analysis within binary files. This functionality is crucial for incident handlers like Jason, who are tasked with analyzing memory dumps for malicious activity or indicators of compromise. By searching for specific strings or patterns that are known to be associated with malware, BinText helps in identifying potentially harmful actions that a program could perform, thus aiding in the investigation of malware incidents.
References:Memory dump analysis and string search techniques are important skills covered in the CREST CPTIA curriculum, emphasizing the use of tools like BinText to aid in the forensic analysis of malware- infected systems.
NEW QUESTION # 80
An attack on a network is BEST blocked using which of the following?
Answer: D
Explanation:
An Intrusion Prevention System (IPS) device placed inline is best suited to block attacks on a network actively. Being inline allows the IPS to analyze and take action on the traffic as it passes through the device, effectively preventing malicious traffic from reaching its target. The IPS can detect and block a wide range of attacks in real-time by using various detection methods, such as signature-based detection, anomaly detection, and policy-based detection. Unlike Host-based Intrusion Prevention Systems (HIPS), web proxies, or load balancers, an inline IPS is specifically designed to inspect and act on incoming and outgoing network traffic to prevent attacks before they reach network devices or applications.References:The Incident Handler (CREST CPTIA) certification materials discuss network security controls and emphasize the role of intrusion prevention systems in protecting networks against threats.
NEW QUESTION # 81
Sam received an alert through an email monitoring tool indicating that their company was targeted by a phishing attack. After analyzing the incident, Sam identified that most of the targets of the attack are high- profile executives of the company. What type of phishing attack is this?
Answer: C
Explanation:
Whaling is a specific type of phishing attack that targets high-profile executives or individuals within an organization, often with the intent to steal sensitive information or gain access to their accounts for financial fraud. The term "whaling" is used because it targets the "big fish" of an organization. Given that Sam identified the targets of the attack as high-profile executives, the described scenario is indicative of a whaling attack.
References:The CREST CPTIA curriculum includes a section on different types of phishing attacks, including whaling, emphasizing the strategies attackers use to target individuals based on their roles within an organization.
NEW QUESTION # 82
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