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

ECIH insider threat guidance emphasizes continuous monitoring and behavioral analysis combined with background checks as the most effective deterrent against malicious insiders.

Option D is correct because insider threats often evolve after hiring. Continuous monitoring detects abnormal behavior patterns that static vetting cannot.

Options A–C are insufficient or ineffective against sophisticated insider threats.

The EC-Council Incident Handler (ECIH) curriculum stresses that mobile malware often enters enterprise environments through sideloaded applications obtained from untrusted sources. Android devices that allow installation from unknown sources significantly increase organizational risk.

Mobile Device Management (MDM) solutions are recommended to enforce application control policies, including restricting installations to digitally signed applications from approved app stores. By enforcing signed app installation policies, organizations prevent the execution of tampered or malicious APK files.

Option A (remote tracking) assists with lost device recovery but does not prevent malicious installations. Option B (Bluetooth/NFC restriction) addresses wireless communication risks, not app integrity. Option C (full-disk encryption) protects stored data but does not stop malware from executing.

ECIH guidance highlights enforcing mobile security baselines, restricting unknown sources, implementing application whitelisting, and applying MDM-enforced controls to prevent sideloaded malware infections. Therefore, enforcing MDM policies that allow only signed app installations is the most effective preventive control.

Explanation (first response priorities):

First responders prioritize containment and preservation: stop ongoing harm while protecting evidence. The scenario suggests active misuse (dormant accounts modifying data) and possible exfiltration (encrypted transmissions). The quickest way to prevent further manipulation/leakage is isolating affected services/segments—reducing attacker access paths and limiting spread. This also prevents additional data corruption while investigators capture logs, account activity, and network traces.

(A) decrypting traffic is not a first responder priority; it may be impossible (TLS/unknown keys) and consumes time while damage continues. (B) external notification can be necessary later, but premature partner notification can create panic and doesn’t stop the incident. (C) rollback is a recovery step and can destroy forensic context or reintroduce compromised states if you haven’t validated backup integrity; it also doesn’t address how access happened or stop current attacker sessions unless paired with containment.

Therefore, (D) best matches initial response doctrine: contain first, preserve evidence, then analyze and recover.

The guideline that helps incident handlers to eradicate insider attacks by privileged users is to ensure accountability by not enabling default administrative accounts. Instead, organizations should require administrators and privileged users to use individual accounts that can be audited and traced back to specific actions and users. This practice enhances security by ensuring that all actions taken on the system can be attributed to individual users, reducing the risk of misuse of privileges and making it easier to identify the source of malicious activities or policy violations. The other options listed either present insecure practices or misunderstandings of security protocols that would not help in eradicating insider attacks.

Hex encoding (also known as hexadecimal encoding) involves converting binary data into hexadecimal representation. In the context described, when a user submits a request with potentially malicious input (such as a single quote and other characters in an attempt to perform SQL injection), the encoding technique converts this input into a string of hexadecimal digits (ranging from 0 to 9 and A to F). This prevents the direct interpretation of the input as SQL commands by the database, thereby mitigating the risk of SQL injection attacks. This method is a form of input sanitization that helps ensure that user input cannot be used to manipulate database queries directly.

The ECIH Network Security Incident Handling module emphasizes maintaining availability while mitigating denial-of-service attacks. The objective is not simply to stop traffic, but to distinguish malicious traffic from legitimate user requests.

Option D is correct because rate limiting and challenge-response mechanisms (such as CAPTCHA or SYN cookies) allow legitimate traffic to continue while throttling or blocking malicious requests. This approach minimizes service disruption while effectively containing the attack.

Option A may increase costs and still fail against large-scale DDoS attacks. Option B can unintentionally block legitimate users. Option C contradicts ECIH guidance by unnecessarily impacting availability.

ECIH stresses proportional and intelligent mitigation strategies that preserve business continuity. Therefore, implementing rate limiting and challenge-response mechanisms is the preferred strategy.

Incident triage is the phase in the Incident Handling and Response (IH&R) process where identified security incidents are analyzed, validated, categorized, and prioritized. This step is crucial for determining the severity of incidents and deciding on the order in which they should be addressed. During triage, incident handlers assess the impact, urgency, and potential harm of an incident to prioritize their response efforts effectively. This ensures that resources are allocated efficiently, and the most critical incidents are handled first. Incident recording and assignment involve logging incidents and assigning them to handlers, containment focuses on limiting the extent of damage, and notification involves informing stakeholders about the incident.

Synthetic identity theft is a type of fraud where the perpetrator combines real (often stolen) and fake information to create a new identity. This can include combining a real social security number with a fictitious name, or other variations that result in an identity that is not entirely real but has elements that can pass through verification processes. In the scenario described, Adam is creating a new identity using information from different victims, which is characteristic of synthetic identity theft. This type of fraud is particularly challenging to detect and counter because it does not directly impersonate a single real individual but creates a plausible new identity that can be used to open accounts, obtain credit, and conduct transactions that can be financially beneficial to the attacker.