ECCouncil 212-89 - EC Council Certified Incident Handler (ECIH v3)

The EC-Council Incident Handler (ECIH) curriculum identifies excessive privileges as a major contributor to insider threats. In this scenario, Daniel had unrestricted access to all file servers, violating the Principle of Least Privilege (PoLP). The absence of enforcement mechanisms or alerts further indicates a lack of access governance.

Zero Trust architecture operates on the principle of “never trust, always verify.” It enforces strict identity verification, continuous authentication, micro-segmentation, and role-based access control. Under Zero Trust, users are granted access only to specific resources required for their job role, and all access attempts are logged and monitored.

User segmentation ensures that even administrators are restricted to only authorized systems and datasets. ECIH stresses the importance of monitoring privileged accounts, implementing least privilege, enabling access auditing, and enforcing real-time alerting for unauthorized data access attempts.

Option A (manual surveillance) is impractical and ineffective at scale. Option B (personal firewall rules) protects network traffic but does not restrict file server permissions. Option C (disabling removable media) addresses data exfiltration via USB devices, not unauthorized file access.

Therefore, user segmentation through Zero Trust access would have prevented Daniel from accessing irrelevant encrypted project files and aligns directly with ECIH insider threat mitigation strategies.

The ECIH Email Security Incident Handling module emphasizes email header analysis as a primary method for identifying spoofed or malicious emails. One of the most critical header elements is the originating IP address, which reveals where the email actually came from.

Option D is correct because tracing the originating IP and validating it through WHOIS provided definitive evidence that the email did not originate from a legitimate organizational source. This technique allows responders to distinguish between legitimate executive communications and impersonation attempts.

Option A is reactive and unreliable. Option B provides detection context but not attribution. Option C validates domain authentication but does not always reveal spoofing when credentials are compromised.

ECIH highlights that IP tracing combined with WHOIS analysis is a powerful verification method during executive impersonation investigations, making Option D correct.

Volatile memory contains critical artifacts such as encryption keys, running processes, and network connections. The ECIH Forensic Readiness module emphasizes that volatile evidence must be captured immediately before it is lost.

Option C is correct because capturing memory first preserves irreplaceable evidence, followed by securing the scene to prevent contamination. Powering down systems before memory capture would destroy volatile data.

Options A and D are incomplete without prioritization. Option B is incorrect due to evidence loss.

Thus, immediate memory capture followed by scene security is the correct action.

The described activity—ICMP echo requests sent sequentially across many IP addresses—is a classic ping sweep, a reconnaissance technique used to identify live hosts on a network. ECIH network incident handling identifies reconnaissance as an early-stage attack activity that often precedes exploitation.

Option B is correct because ping sweeps use ICMP echo requests to determine which hosts respond, allowing attackers to map the network. This aligns exactly with the observed traffic.

Option A involves DNS manipulation. Option C involves probing TCP/UDP ports rather than ICMP. Option D describes a denial-of-service technique, not reconnaissance.

Recognizing reconnaissance activity early allows defenders to implement controls before exploitation occurs, aligning with ECIH detection and prevention guidance.

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.

While technical solutions like antivirus updates, disabling HTML in emails, and web proxy filtering play significant roles in securing email systems, the best method to prevent email incidents is often considered to be end-user training. This is because many email threats, such as phishing, rely on exploiting user behavior rather than technical vulnerabilities. By educating users on the risks associated with suspicious emails, how to recognize potentially harmful messages, and the importance of not clicking on unknown links or attachments, organizations can significantly reduce the risk of email-related incidents. End-user training empowers individuals to act as a critical line of defense against email-based threats, complementing technical safeguards.

This scenario reflects misuse of system resources, a category defined in ECIH network and endpoint incident classification.

Option C is correct because unauthorized software caused excessive CPU usage and system strain, violating acceptable use policies.

Options A, B, and D do not match the behavior described.

ECIH classifies such activity as a security incident because it impacts availability, performance, and risk exposure.

Shally has incorporated the Defense-in-depth strategy into the incident response plan for Texas Pvt. Ltd. Defense-in-depth is a layered security approach that involves implementing multiple security measures and controls throughout an information system. This strategy is designed to provide several defensive barriers to protect against threats and attacks, ensuring that if one layer is compromised, others still provide protection. The goal is to create a multi-faceted defense that addresses potential vulnerabilities in various areas, including physical security, network security, application security, and user education.

A Trojan attack involves a type of malicious code or software that appears legitimate but can take control of your computer. Trojans often disguise themselves as legitimate software or are hidden within legitimate software that has been tampered with. They differ from viruses and worms because they do not replicate. However, once activated, Trojans can enable cyber-criminals to spy on you, steal your sensitive data, and gain backdoor access to your system. This can include unauthorized actions such as deleting files, monitoring user activities, or installing additional malicious software.