An engineer is working on a ticket for an incident from the incident management team A week ago. an external web application was targeted by a DDoS attack Server resources were exhausted and after two hours it crashed. An engineer was able to identify the attacker and technique used Three hours after the attack, the server was restored and the engineer recommended implementing mitigation by Blackhole filtering and transferred the incident ticket back to the IR team According to NIST SP800-61, at which phase of the incident response did the engineer finish work?
Correct Answer: C
According to NIST SP800-61, the incident response phase called "Containment, Eradication, and Recovery" involves containing the incident, eradicating the threat, and recovering from the incident2. In the scenario described, the engineer worked on containing the DDoS attack by identifying the attacker and the technique used, which is part of the containment process. The recommendation to implement Blackhole filtering is part of the eradication process, where measures are taken to prevent the attack from happening again. Finally, restoring the server is part of the recovery process, where normal operations are resumed. Therefore, the engineer finished work during the "Containment, Eradication, and Recovery" phase. References: NIST SP800- 61 Computer Security Incident Handling Guide2.
Question 377
Refer to the exhibit. What is occurring?
Correct Answer: B
DNS amplification is a type of Distributed Denial of Service (DDoS) attack where an attacker uses publicly accessible open DNS servers to flood a target with DNS response traffic. The goal is to overwhelm the target with traffic, causing a denial of service.
Question 378
What is the principle of defense-in-depth?
Correct Answer: B
Question 379
An intruder attempted malicious activity and exchanged emails with a user and received corporate information, including email distribution lists. The intruder asked the user to engage with a link in an email. When the fink launched, it infected machines and the intruder was able to access the corporate network. Which testing method did the intruder use?
Correct Answer: D
Question 380
What is a difference between SI EM and SOAR security systems?
Correct Answer: 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
