Eccouncil EC-Council Certified Incident Handler v3 212-89 Exam Practice Test

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Total 172 questions
Question 1

[Handling and Responding to Web Application Attacks]

Oscar receives an email from an unknown source containing his domain name oscar.com. Upon checking the link, he found that it contains a malicious URL that redirects to the website evilsite.org. What type of vulnerability is this?



Answer : C

The scenario described, where Oscar receives an email with a link that contains a malicious URL redirecting to evilsite.org, exemplifies a vulnerability related to unvalidated redirects and forwards. This type of vulnerability occurs when a web application accepts untrusted input that could cause the web application to redirect the request to a URL contained within untrusted input. Attackers can exploit this vulnerability by crafting a malicious URL that leads unsuspecting users to phishing sites or other malicious websites, under the guise of a legitimate domain. This is distinct from malware, which refers to malicious software; SQL injection, which involves inserting malicious SQL queries through input fields to manipulate or exploit databases; and is not a term related to cybersecurity vulnerabilities.


Question 2

[Introduction to Incident Handling and Response]

During the process of detecting and containing malicious emails, incident responders

should examine the originating IP address of the emails.

The steps to examine the originating IP address are as follow:

1. Search for the IP in the WHOIS database

2. Open the email to trace and find its header

3. Collect the IP address of the sender from the header of the received mail

4. Look for the geographic address of the sender in the WHOIS database

Identify the correct sequence of steps to be performed by the incident responders to

examine originating IP address of the emails.



Answer : D

The correct sequence to examine the originating IP address of emails involves first accessing the email's header to locate the IP address, then using external resources to investigate that address further. The steps are as follows:

Step 2:Open the email to trace and find its header. This is the initial step because the header contains valuable information about the email's journey across the internet, including the originating IP address.

Step 3:Collect the IP address of the sender from the header of the received mail. This detail is crucial for the next steps in the investigation.

Step 1:Search for the IP in the WHOIS database. This database can provide information about the owner of the IP address, including the ISP and sometimes the geographic location.

Step 4:Look for the geographic address of the sender in the WHOIS database. With the IP address information obtained from the WHOIS search, the geographic location or the originating country of the email can often be deduced, contributing to the analysis of the email's legitimacy.


Question 3

[Introduction to Incident Handling and Response]

Racheal is an incident handler working in InceptionTech organization. Recently,

numerous employees are complaining about receiving emails from unknown senders. In

order to prevent employees against spoofing emails and keeping security in mind,

Racheal was asked to take appropriate actions in this matter. As a part of her

assignment, she needs to analyze the email headers to check the authenticity of received

emails.

Which of the following protocol/authentication standards she must check in email

header to analyze the email authenticity?



Answer : A

Racheal should check for DKIM (DomainKeys Identified Mail) in the email headers to analyze the authenticity of received emails. DKIM is an email authentication method designed to detect email spoofing. It provides a way for the receiver to check that an email claimed to have come from a specific domain was indeed authorized by the owner of that domain. It achieves this by affixing a digital signature, linked to a domain name, to each outgoing email message. The recipient can verify this signature to confirm that the email was not altered during its transmission and that it indeed comes from the specified domain, thereby helping to prevent email spoofing. Other options like SNMP (Simple Network Management Protocol), POP (Post Office Protocol), and ARP (Address Resolution Protocol) are not directly related to email authenticity checks.


Question 4

[Introduction to Incident Handling and Response]

You are talking to a colleague who Is deciding what information they should include in their organization's logs to help with security auditing. Which of the following items should you tell them to NOT log?



Answer : B

Logging User IDs (D) can pose privacy concerns and may conflict with regulations such as the General Data Protection Regulation (GDPR), which emphasizes the protection of personal data and privacy. Therefore, while logging details such as Timestamps, Session IDs, and Source IP addresses are essential for security auditing to track when events occur, who is initiating sessions, and from where, care must be taken with User IDs. The handling of personally identifiable information (PII) must comply with privacy laws and organizational policies to safeguard individual privacy rights.


Question 5

[Handling and Responding to Cloud Security Incidents]

SWA Cloud Services added PKI as one of their cloud security controls. What does PKI stand for?



Answer : D

Public Key Infrastructure (PKI) is a framework used to manage digital certificates and public-key encryption. It enables secure electronic transfer of information for a range of network activities such as e-commerce, internet banking, and confidential email. PKI is fundamental to the management of encryption keys and digital certificates, ensuring the secure exchange of data over networks and verification of identity.


Question 6

[Handling and Responding to Email Security Incidents]

Khai was tasked with examining the logs from a Linux email server. The server uses Sendmail to execute the command to send emailsand Syslog to maintain logs. To validate the data within email headers, which of the following directories should Khai check for information such as source and destination IP addresses, dates, and timestamps?



Answer : A

In a Linux environment, email servers such as Sendmail log events, including details about sent and received emails, in a specific log file. The correct directory and file for examining email logs, particularly for Sendmail and using Syslog for logging, is /Var/log/maillog. This file contains vital information for forensic and incident response purposes, including source and destination IP addresses, email addresses, timestamps, and other data relevant to the email traffic handled by the server. By analyzing this log, incident responders can gather evidence related to email-based incidents, trace the source of malicious emails, and understand the scope of an incident. It's crucial for individuals like Khai, who are tasked with examining logs, to know the correct log file locations and their contents to effectively validate and analyze email header information and other relevant data.


Question 7

[Introduction to Incident Handling and Response]

In which of the following stages of incident handling and response (IH&R) process do

the incident handlers try to find out the root cause of the incident along with the threat

actors behind the incidents, threat vectors, etc.?



Answer : C

During the incident handling and response (IH&R) process, the stage of 'Evidence gathering and forensics analysis' involves the collection of evidence, forensic analysis, and detailed investigation to uncover the root cause of the incident. This stage is crucial for understanding how the incident occurred, identifying the threat actors involved, the methods they used (threat vectors), and the extent of the impact. By analyzing evidence, incident responders can reconstruct the sequence of events, identify the vulnerabilities exploited, and determine the scope of the incident. This information is vital for resolving the incident effectively and taking steps to prevent future occurrences.


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