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| Section | Objectives |
|---|---|
| Incident Response Fundamentals | - Roles and responsibilities in incident handling - Incident response lifecycle and methodologies |
| Digital Forensics and Evidence Handling | - Forensic analysis basics - Chain of custody principles - Evidence collection and preservation |
| Incident Reporting and Documentation | - Post-incident review and lessons learned - Incident reporting standards |
| Incident Detection and Analysis | - Log analysis and monitoring - SIEM fundamentals and alert handling - Threat intelligence usage in investigations |
| Containment, Eradication, and Recovery | - Containment strategies - System recovery and restoration - Malware and threat removal procedures |
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質問 # 259
A mid-sized healthcare organization undergoing digital modernization is working toward ISO/IEC 27001 certification. During a readiness review, the CISO identifies gaps: staff lack clear channels to raise concerns about system weaknesses, outcome tracking after adverse events is inconsistent, and there is no formalized way to assess what went right or wrong following disruptions. To comply with ISO/IEC 27001 Annex A.16, which action should be prioritized?
正解：D
解説：
Comprehensive and Detailed Explanation (ECIH-aligned):
ISO/IEC 27001 Annex A.16 focuses on information security incident management, including reporting, assessment, response, and learning. The ECIH curriculum aligns closely with these requirements, emphasizing structured procedures and continuous improvement.
Option C is correct because it directly addresses the identified gaps: clear escalation channels, consistent outcome tracking, and incorporation of lessons learned. ECIH stresses that post-incident activities-often overlooked-are essential for improving readiness and preventing recurrence.
Option A supports preparedness but does not address systemic process gaps. Option B improves visibility but not governance. Option D is a technical control unrelated to incident learning and escalation.
Thus, implementing structured incident escalation and post-incident knowledge integration is the priority action for compliance and resilience.
質問 # 260
Which of the following terms refers to an organization's ability to make optimal use of digital evidence in a limited period of time and with minimal investigation costs?
正解：B
解説：
Forensic readiness refers to an organization's ability to maximize its capability to use digital evidence effectively in an investigation, while minimizing the cost of an investigation and disruption to its operations.
It involves having policies, procedures, and technologies in place to collect, preserve, and analyze digital evidence efficiently, so when an incident occurs, the organization is prepared to handle it quickly and with minimal costs. Forensic readiness not only helps in reducing the time and resources spent on investigations but also ensures that the evidence is reliable and can be used in legal proceedings if necessary.
References:The concept of forensic readiness is part of the Incident Handler (ECIH v3) curriculum, emphasizing the strategic importance of preparing for incidents in advance, including the preservation of evidence and the ability to conduct effective and efficient investigations.
質問 # 261
Mason, an incident responder, detects a large volume of traffic from an internal host to external IP addresses during non-business hours. The affected host also shows signs of elevated memory and CPU consumption.
AIDA64 Extreme logs confirm the system was under continuous strain for hours. What should Mason suspect as the primary issue?
正解：C
解説：
Comprehensive and Detailed Explanation (ECIH-aligned):
This scenario reflects inappropriate resource usage, a category of network and system misuse defined in the ECIH Network Security Incident module. Excessive outbound traffic during non-business hours combined with high CPU and memory utilization indicates unauthorized or improper use of system resources.
Option A is correct because the behavior suggests activities such as cryptomining, data exfiltration, or unauthorized processing. These activities strain system resources and often occur outside normal working hours to avoid detection.
Option B would not necessarily cause sustained resource strain. Option C focuses on physical changes.
Option D relates to permission enforcement, not usage behavior.
ECIH categorizes inappropriate usage as a security incident when system resources are misused in ways that violate policy or threaten availability, making Option A correct.
質問 # 262
An attacker traced out and found the kind of websites a target company/individual is frequently surfing and tested those particular websites to identify any possible vulnerabilities. When the attacker detected vulnerabilities in the website, the attacker started injecting malicious script/code into the web application that can redirect the webpage and download the malware onto the victim's machine. After infecting the vulnerable web application, the attacker waited for the victim to access the infected web application.
Identify the type of attack performed by the attacker.
正解：B
解説：
The described attack is a "Watering hole" attack. This type of attack targets specific groups of users by infecting websites they are known to frequently visit. The attacker first identifies websites that are popular with the target group, then finds vulnerabilities in those websites to inject malicious code. When the victims visit the compromised site, the code redirects them to other sites or automatically downloads malware onto their machines. This attack leverages the trust users have in regularly visited sites to distribute malware.
Unlike obfuscation application, directory traversal, or cookie/session poisoning attacks, watering hole attacks specifically aim to compromise a commonly used and trusted website to target its users.References:The ECIH v3 certification materials discuss various cyber attack strategies, including watering hole attacks, and provide insights into how attackers exploit trusted relationships between websites and their users.
質問 # 263
An Incident Handler is configuring Suricata IDS to detect suspicious ICMP and HTTP traffic in the network. They have set up an ICMP rule and want to ensure the HTTP traffic is also logged. The Suricata engine is running, and some HTTP activity is being conducted on a Windows machine for testing purposes. The Suricata engine is then stopped to analyze the logs. What would be the correct sequence of steps that the Incident Handler should follow in the Ubuntu terminal to analyze the HTTP traffic log?
正解：A
質問 # 264
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