212-89 Exam Dumps : EC Council Certified Incident Handler (ECIH v3)

Explanation (aligned to IH&R best practice):

Insider threats are most effectively reduced by combining least privilege with continuous detection of abnormal behavior. Regular access reviews ensure that users only retain permissions needed for their roles (reducing “privilege creep”), while behavior analytics help detect misuse that still occurs within “legitimate” access. Password rotation (A) is largely hygiene and does not prevent a determined insider who already has authorized access; frequent forced changes can also push unsafe behaviors (writing passwords down, predictable patterns). A strict hierarchy (B) is not practical and does not map to “need-to-know”—seniority is not the right control boundary, job function is. Biometrics (C) strengthens authentication, but the scenario’s problem is not identity uncertainty; it is misuse by a valid insider. The most effective approach is therefore governance + monitoring: (1) define data access baselines, (2) review permissions routinely, (3) alert on suspicious actions such as unusual repository cloning, bulk downloads, access outside normal hours, or atypical branches, and (4) investigate quickly with HR/legal processes. These measures directly address motive-driven misuse by enabling early detection and limiting the blast radius. This aligns with the broader incident handling emphasis on identifying affected systems/data, understanding scope, and improving controls post-incident to prevent recurrence.

Netstat (network statistics) is a command-line tool that displays network connections (both incoming and outgoing), routing tables, and a number of network interface (and network protocol) statistics. It is considered a volatile evidence collecting tool because it gathers information that exists in the system's memory, which is lost upon shutdown or reboot. This makes it invaluable for collecting evidence of active connections and processes that are present at the time of the incident response but does not persistently store data that can be recovered later. This contrasts with tools like FTK Imager or ProDiscover Forensics, which are used for acquiring digital evidence in a non-volatile manner, such as disk imaging, and HashTool, which is used for validating the integrity of collected digital evidence through hashing.

The EC-Council Incident Handler (ECIH) curriculum categorizes incidents such as unauthorized software installation and policy violations under inappropriate usage incidents. In this scenario, the activity originated from a legitimate internal workstation and user account, not an external third party.

The repeated login failures outside business hours combined with installation of an unauthorized remote desktop tool indicate a breach of acceptable use policy and potentially malicious intent. However, the key factor is that the actions were performed by an internal user using valid access credentials, making this an insider-related policy violation rather than an external unauthorized access attack.

Option A implies legitimate remote work within policy boundaries, which is contradicted by the unauthorized software installation. Option B suggests a third-party compromise, but logs indicate activity from an internal user account. Option D (DoS attack) involves service disruption via traffic flooding, which is not described here.

ECIH stresses enforcing acceptable use policies, monitoring user behavior, restricting unauthorized software installation, and applying least privilege controls to mitigate insider misuse. Therefore, this scenario best fits inappropriate usage due to policy violation and unauthorized software installation.