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An attacker instructs bots to use camouflage mechanism to hide his phishing and malware delivery locations in the rapidly changing network of compromised bots. In this particular technique, a single domain name consists of multiple IP addresses. Which of the following technique is used by the attacker?
A. DNS zone transfer
B. Dynamic DNS
C. DNS interrogation
D. Fast-Flux DNS
Explanation: Fast-Flux DNS is a technique used by attackers to hide phishing and malware distribution sites behind an ever-changing network of compromised hosts acting as proxies. It involves rapidly changing the association of domain names with multiple IP addresses, making the detection and shutdown of malicious sites more difficult. This technique contrasts with DNS zone transfers, which involve the replication of DNS data across DNS servers, or Dynamic DNS, which typically involves the automatic updating of DNS records for dynamic IP addresses, but not necessarily for malicious purposes. DNS interrogation involves querying DNS servers to retrieve information about domain names, but it does not involve hiding malicious content. Fast-Flux DNS specifically refers to the rapid changes in DNS records to obfuscate the source of the malicious activity, aligning with the scenario described.
ABC is a well-established cyber-security company in the United States. The organization implemented the automation of tasks such as data enrichment and indicator aggregation. They also joined various communities to increase their knowledge about the emerging threats. However, the security teams can only detect and prevent identified threats in a reactive approach. Based on threat intelligence maturity model, identify the level of ABC to know the stage at which the organization stands with its security and vulnerabilities.
A. Level 2: increasing CTI capabilities
B. Level 3: CTI program in place
C. Level 1: preparing for CTI
D. Level 0: vague where to start
Explanation: ABC cyber-security company, which has implemented automation for tasks such as data enrichment and indicator aggregation and has joined various communities to increase knowledge about emerging threats, is demonstrating characteristics of a Level 3 maturity in the threat intelligence maturity model. At this level, organizations have a formal Cyber Threat Intelligence (CTI) program in place, with processes and tools implemented to collect, analyze, and integrate threat intelligence into their security operations. Although they may still be reactive in detecting and preventing threats, the existence of structured CTI capabilities indicates a more developed stage of threat intelligence maturity.
A team of threat intelligence analysts is performing threat analysis on malware, and each of them has come up with their own theory and evidence to support their theory on a given malware. Now, to identify the most consistent theory out of all the theories, which of the following analytic processes must threat intelligence manager use?
A. Threat modelling
B. Application decomposition and analysis (ADA)
C. Analysis of competing hypotheses (ACH)
D. Automated technical analysis
Explanation: Analysis of Competing Hypotheses (ACH) is an analytic process designed to help an analyst or a team of analysts evaluate multiple competing hypotheses on an issue fairly and objectively. ACH assists in identifying and analyzing the evidence for and against each hypothesis, ultimately aiding in determining the most likely explanation. In the scenario where a team of threat intelligence analysts has various theories on a particular malware, ACH would be the most appropriate method to assess these competing theories systematically. ACH involves listing all possible hypotheses, collecting data and evidence, and assessing the evidence's consistency with each hypothesis. This process helps in minimizing cognitive biases and making a more informed decision on the most consistent theory.
An XYZ organization hired Mr. Andrews, a threat analyst. In order to identify the threats and mitigate the effect of such threats, Mr. Andrews was asked to perform threat modeling. During the process of threat modeling, he collected important information about the treat actor and characterized the analytic behavior of the adversary that includes technological details, goals, and motives that can be useful in building a strong countermeasure. What stage of the threat modeling is Mr. Andrews currently in?
A. System modeling
B. Threat determination and identification
C. Threat profiling and attribution
D. Threat ranking
Explanation: During the threat modeling process, Mr. Andrews is in the stage of threat profiling and attribution, where he is collecting important information about the threat actor and characterizing the analytic behavior of the adversary. This stage involves understanding the technological details, goals, motives, and potential capabilities of the adversaries, which is essential for building effective countermeasures. Threat profiling and attribution help in creating a detailed picture of the adversary, contributing to a more focused and effective defense strategy.
In which of the following storage architecture is the data stored in a localized system, server, or storage hardware and capable of storing a limited amount of data in its database and locally available for data usage?
A. Distributed storage
B. Object-based storage
C. Centralized storage
D. Cloud storage
Explanation: Centralized storage architecture refers to a system where data is stored in a localized system, server, or storage hardware. This type of storage is capable of holding a limited amount of data in its database and is locally available for data usage. Centralized storage is commonly used in smaller organizations or specific departments within larger organizations where the volume of data is manageable and does not require the scalability offered by distributed or cloud storage solutions. Centralized storage systems simplify data management and access but might present challenges in terms of scalability and data recovery.
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