212-82 Exam Preparation Material | Certified Cybersecurity Technician(C|CT)

Explanation:
TCP/UDP is the protocol that has been used to apply the rule to block the web application www.abchacker.com in the above scenario. pfSense is a firewall and router software that can be installed on a computer or a device to protect a network from various threats and attacks. pfSense can be configured to block or allow traffic based on various criteria, such as source, destination, port, protocol, etc. pfSense rules are applied to traffic in the order they appear in the firewall configuration. To perform an analysis on the rules set by the admin, one has to follow these steps:
Open a web browser and type 20.20.10.26
Press Enter key to access the pfSense web interface.
Enter admin as username and admin@l23 as password.
Click on Login button.
Click on Firewall menu and select Rules option.
Click on LAN tab and observe the rules applied to LAN interface.
The rules applied to LAN interface are:



The first rule blocks any traffic from LAN interface to www.abchacker.com website using TCP/UDP protocol. The second rule allows any traffic from LAN interface to any destination using any protocol. Since the first rule appears before the second rule, it has higher priority and will be applied first. Therefore, TCP/UDP is the protocol that has been used to apply the rule to block the web application www.abchacker.com. POP3 (Post Office Protocol 3) is a protocol that allows downloading emails from a mail server to a client device. FTP (File Transfer Protocol) is a protocol that allows transferring files between a client and a server over a network. ARP (Address Resolution Protocol) is a protocol that resolves IP addresses to MAC (Media Access Control) addresses on a network.

Explanation:
/var/log/wtmp is the Linux log file accessed by Gideon in this scenario. /var/log/wtmp is a log file that records information related to user login/logout, such as username, terminal, IP address, and login time. /var/log/wtmp can be used to determine the current login state of users in a Linux system. /var/log/wtmp can be viewed using commands such as last, lastb, or utmpdump1.
Reference: Linux Log Files

Explanation:
High-Interaction Honeypots:
High-interaction honeypots simulate real systems, offering attackers a full operating environment to interact with, thereby providing detailed insights into their methods and techniques.
Reference: NIST SP 800-94, Guide to Intrusion Detection and Prevention Systems (IDPS).
Gathering Detailed Information:
These honeypots capture extensive information about the attacker's activities, including tools used, attack vectors, and methodologies, which is valuable for understanding and defending against APTs.
Reference: "Honeypots: Tracking Hackers" by Lance Spitzner. Minimizing Risk to Actual Systems:
By isolating the honeypot environment from the production network, the risk of attackers moving to actual systems is minimized.
Reference: ENISA’s Threat Landscape and Good Practice Guide for Internet Infrastructure.
Advanced Threat Detection:
High-interaction honeypots are particularly effective for detecting sophisticated threats, such as
APTs, by engaging attackers in real-time and analyzing their behavior in-depth.
Reference: IEEE Transactions on Information Forensics and Security.
Given DigitalVault Corp's goal of gathering extensive information about attackers without risking actual systems, high-interaction honeypots are the best choice.

Explanation:
Purple team is the team that Alex works for in this scenario. A team is a group of people that work together to achieve a common goal or objective. A team can have different types based on its role or function in an organization or a project. A purple team is a type of team that works for both aggressor and defender teams. A purple team can be used to enhance protection and boost the security standards of an organization by performing various tasks, such as testing, evaluating, improving, or integrating the security measures implemented by the defender team or exploited by the aggressor team. In the scenario, Alex is a certified security professional who works for both aggressor and defender teams. His team’s main responsibility involves enhancing protection and boosting the security standards of the organization. This means that he works for a purple team. A white team is a type of team that acts as an observer or an arbitrator between the aggressor and defender teams. A white team can be used to monitor, evaluate, or adjudicate the performance or outcome of the aggressor and defender teams by providing feedback, guidance, or rules. A blue team is a type of team that acts as a defender or a protector of an organization’s network or system. A blue team can be used to prevent, detect, or respond to attacks from external or internal threats by implementing various security measures, such as firewalls, antivirus, encryption, etc. A red team is a type of team that acts as an attacker or an adversary of an organization’s network or system. A red team can be used to simulate realistic attacks from external or internal threats by exploiting various vulnerabilities, weaknesses, or gaps in the organization’s security posture.

Explanation:
To analyze the IoT network traffic capture and identify the command sent to IoT devices, follow these steps:
Open the Capture File:
Use a network analysis tool like Wireshark to open the IoT_capture.pcapng file.
Filter and Analyze:
Apply appropriate filters to isolate relevant traffic. Look for command patterns typically sent to IoT devices.
Identify the Command:
Upon analyzing the captured traffic, the command Forest_Fire_Alert444 is identified as the one sent
over the network to IoT devices during the attack.
Reference: Wireshark User Guide: Wireshark Documentation
Analysis of IoT network traffic: IoT Security