Master Cisco 200-201: Your Gateway to Cybersecurity Excellence

Correct : B

The situation where endpoint logs show a machine receiving an unusual gateway address and DNS servers via DHCP is indicative of a Man-in-the-Middle (MitM) attack, specifically a DHCP spoofing attack. In this type of attack, an adversary can set up a rogue DHCP server or manipulate the DHCP communication to provide false gateway and DNS information to clients.This allows the attacker to intercept, monitor, or manipulate traffic between the client and the intended gateway or DNS servers2.

Correct : C

SIEM (Security Information and Event Management) systems are designed to collect, correlate, and analyze security event data from various sources to provide insights into potential security issues. They raise alerts when detecting suspicious activities. SOAR (Security Orchestration, Automation, and Response) systems, on the other hand, focus on automating and orchestrating incident response processes.They automate investigation path workflows and reduce the time spent on alerts by executing predefined actions and workflows in response to security events or incidents.Reference:: The differences between SIEM and SOAR are highlighted in various cybersecurity resources, including those provided by Palo Alto Networks and Exabeam, which explain that while SIEM primarily focuses on collecting and analyzing security event data, SOAR extends these capabilities through automation, orchestration, and predefined incident response playbooks

Correct : C

The category of the Cyber Kill Chain model that this event belongs to is weaponization. This stage occurs after reconnaissance has taken place and the attacker has discovered all necessary information about potential targets, such as vulnerabilities.In the weaponization stage, the attacker's preparatory work culminates in the creation of malware to be used against an identified target, which in this case is a specific worm tailored to exploit a software flaw and extract saved passwords.Reference:: The Cyber Kill Chain framework, developed by Lockheed Martin, explains the weaponization stage as the process where attackers create or modify cyber weapons based on the intelligence gathered during reconnaissance

Correct : C

The communication channel established from a compromised machine back to the attacker is known as a command and control (C2) channel. This channel allows attackers to maintain communication with the compromised system, issue commands, and potentially exfiltrate data. The C2 channel can be established using various protocols and methods to evade detection and maintain persistence.

Correct : D

Rule-based detection systems operate using predefined patterns and signatures to identify known threats. These patterns are based on prior knowledge of attack methods and vulnerabilities.

Behavioral detection systems, on the other hand, analyze the normal behavior of a network or system to establish a baseline. They then monitor for deviations from this baseline, which may indicate potential threats.

Rule-based systems are effective at detecting known threats but may struggle with novel or zero-day attacks that do not match existing signatures.

Behavioral systems can detect unknown threats by recognizing abnormal activities, making them useful in identifying zero-day exploits and other sophisticated attacks.

Comparison of Rule-based and Behavioral Detection Methods in IDS

Advantages of Behavioral Analysis in Network Security

Cybersecurity Detection Techniques