Ace Your CPTIA CREST Practitioner Exam

The Blueliv Threat Exchange Network is a collaborative platform designed for sharing and receiving threat intelligence among security professionals and organizations. It provides real-time information on global threats, helping participants to enhance their security posture by leveraging shared intelligence. The platform facilitates the exchange ofinformation related to cybersecurity threats, including indicators of compromise (IoCs), tactics, techniques, and procedures (TTPs) of threat actors, and other relevant data. This makes it an ideal choice for Kim, who is looking to gather and share threat information to develop security policies for his organization. In contrast, Cuckoo Sandbox is a malware analysis system, OmniPeek is a network analyzer, and PortDroid is a network analysis application, none of which are primarily designed for intelligence sharing.References:

Blueliv's official documentation and resources

"Building an Intelligence-Led Security Program," by Allan Liska

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.

The correct sequence to examine the originating IP address of emails involves first accessing the email's header to locate the IP address, then using external resources to investigate that address further. The steps are as follows:

Step 2:Open the email to trace and find its header. This is the initial step because the header contains valuable information about the email's journey across the internet, including the originating IP address.

Step 3:Collect the IP address of the sender from the header of the received mail. This detail is crucial for the next steps in the investigation.

Step 1:Search for the IP in the WHOIS database. This database can provide information about the owner of the IP address, including the ISP and sometimes the geographic location.

Step 4:Look for the geographic address of the sender in the WHOIS database. With the IP address information obtained from the WHOIS search, the geographic location or the originating country of the email can often be deduced, contributing to the analysis of the email's legitimacy.

References:The process of analyzing email headers to trace originating IP addresses and further investigating those addresses is a common practice in incident response, covered under the digital forensics and email analysis topics within the CREST CPTIA curriculum by EC-Council.

Normalization in the context of data analysis refers to the process of organizing data to reduce redundancy and improve efficiency in storing and sharing. By filtering, tagging, and queuing, Miley is effectively normalizing the data—converting it from various unstructured formats into a structured, more accessible format. This makes the data easierto analyze, store, and share. Normalization is crucial in cybersecurity and threat intelligence to manage the vast amounts of data collected and ensure that only relevant data is retained and analyzed. This technique contrasts with sandboxing, which is used for isolating and analyzing suspicious code; data visualization, which involves representing data graphically; and convenience sampling, which is a method of sampling where samples are taken from a group that is conveniently accessible.References:

"The Application of Data Normalization to Database Security," International Journal of Computer Science Issues

SANS Institute Reading Room, "Data Normalization Considerations in Cyber Threat Intelligence"