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ISACA Certified Cybersecurity Operations Analyst Sample Questions (Q27-Q32):

NEW QUESTION # 27
Which of the following BEST describes privilege escalation in the context of kernel security?

A. A technique used by attackers to bypass kernel-level security controls
B. A type of code to inject malware into the kernel
C. A security vulnerability in the operating system that triggers buffer overflows
D. A process by which an attacker gains unauthorized access to user data

Answer: A

Explanation:
Privilege escalationin the context of kernel security refers to:
* Kernel Exploits:Attackers exploit vulnerabilities in the kernel to gainelevated privileges.
* Root Access:A successful attack often results in root or system-level access.
* Bypassing Security:Kernel-level exploitation bypasses user-mode security controls, leading to complete system compromise.
* Common Methods:Exploiting buffer overflows, kernel vulnerabilities, or using rootkits.
Incorrect Options:
* A. Unauthorized access to user data:More related to data leakage, not privilege escalation.
* B. Buffer overflow vulnerabilities:A method of exploitation, not the result itself.
* C. Injecting malware:An attack vector, but not specifically privilege escalation.
Exact Extract from CCOA Official Review Manual, 1st Edition:
Refer to Chapter 4, Section "Kernel Security," Subsection "Privilege Escalation Techniques" - Attackers exploit kernel vulnerabilities to gain unauthorized elevated access.

NEW QUESTION # 28
An employee has been terminated for policy violations.Security logs from win-webserver01 have been collectedand located in the Investigations folder on theDesktop as win-webserver01_logs.zip.
Create a new case in Security Onion from the win-webserver01_logs.zip file. The case title is WindowsWebserver Logs - CCOA New Case and TLP must beset to Green. No additional fields are required.

Answer:

Explanation:
See the solution in Explanation.
Explanation:
To create a new case inSecurity Onionusing the logs from the win-webserver01_logs.zip file, follow these detailed steps:
Step 1: Access Security Onion
* Open a web browser and go to yourSecurity Onionweb interface.
URL: https://<security-onion-ip>/
* Log in using yourSecurity Onioncredentials.
Step 2: Prepare the Log File
* Navigate to theDesktopand open theInvestigationsfolder.
* Locate the file:
win-webserver01_logs.zip
* Unzip the file to inspect its contents:
unzip ~/Desktop/Investigations/win-webserver01_logs.zip -d ~/Desktop/Investigations/win-webserver01_logs
* Ensure that the extracted files, including System-logs.evtx, are accessible.
Step 3: Open the Hunt Interface in Security Onion
* On the Security Onion dashboard, go to"Hunt"(or"Cases"depending on the version).
* Click on"Cases"to manage incident cases.
Step 4: Create a New Case
* Click on"New Case"to start a fresh investigation.
Case Details:
* Title:
Windows Webserver Logs - CCOA New Case
* TLP (Traffic Light Protocol):
* Set toGreen(indicating that the information can be shared freely).
Example Configuration:
Field
Value
Title
Windows Webserver Logs - CCOA New Case
TLP
Green
Summary
(Leave blank if not required)
* Click"Save"to create the case.
Step 5: Upload the Log Files
* After creating the case, go to the"Files"section of the new case.
* Click on"Upload"and select the unzipped log file:
~/Desktop/Investigations/win-webserver01_logs/System-logs.evtx
* Once uploaded, the file will be associated with the case.
Step 6: Verify the Case Creation
* Go back to theCasesdashboard.
* Locate and verify that the case"Windows Webserver Logs - CCOA New Case"exists withTLP:
Green.
* Check that thelog filehas been successfully uploaded.
Step 7: Document and Report
* Document the case details:
* Case Title:Windows Webserver Logs - CCOA New Case
* TLP:Green
* Log File:System-logs.evtx
* Include anyinitial observationsfrom the log analysis.
Example Answer:
A new case titled "Windows Webserver Logs - CCOA New Case" with TLP set to Green has been successfully created in Security Onion. The log file System-logs.evtx has been uploaded and linked to the case.
Step 8: Next Steps for Investigation
* Analyze the log file:Start hunting for suspicious activities.
* Create analysis tasks:Assign team members to investigate specific log entries.
* Correlate with other data:Cross-reference with threat intelligence sources.

NEW QUESTION # 29
Which of the following has been defined when a disaster recovery plan (DRP) requires daily backups?

A. Maximum tolerable downtime (MTD)
B. Mean time to failure (MTTF)
C. Recovery time objective (RTO|
D. Recovery point objective {RPO)

Answer: D

Explanation:
TheRecovery Point Objective (RPO)defines themaximum acceptable amount of data lossmeasured in time before a disaster occurs.
* Daily Backups:If the DRP requiresdaily backups, the RPO is effectively set at24 hours, meaning the organization can tolerate up to one day of data loss.
* Data Preservation:Ensures that the system can recover data up to the last backup point.
* Business Continuity Planning:Helps determine how often data backups need to be performed to minimize loss.
Other options analysis:
* A. Maximum tolerable downtime (MTD):Refers to the total time a system can be down before significant impact.
* B. Recovery time objective (RTO):Defines the time needed to restore operations after an incident.
* D. Mean time to failure (MTTF):Indicates the average time a system operates before failing.
CCOA Official Review Manual, 1st Edition References:
* Chapter 5: Business Continuity and Disaster Recovery:Defines RPO and its importance in data backup strategies.
* Chapter 7: Risk Management:Discusses RPO as a key metric in disaster recovery planning.

NEW QUESTION # 30
A password Is an example of which type of authentication factor?

A. Something you do
B. Something you know
C. Something you have
D. Something you are

Answer: B

Explanation:
Apasswordfalls under the authentication factor of"something you know":
* Knowledge-Based Authentication:The user must remember and enter a secret (password or PIN) to gain access.
* Common Factor:Widely used in traditional login systems.
* Security Concerns:Prone to theft, phishing, and brute-force attacks if not combined with additional factors (like MFA).
Incorrect Options:
* A. Something you do:Refers to behavioral biometrics, like typing patterns.
* C. Something you are:Refers to biometric data, such as fingerprints or iris scans.
* D. Something you have:Refers to physical tokens or devices, like a smart card.
Exact Extract from CCOA Official Review Manual, 1st Edition:
Refer to Chapter 4, Section "Authentication Factors," Subsection "Knowledge-Based Methods" - Passwords are considered "something you know" in authentication.

NEW QUESTION # 31
Your enterprise has received an alert bulletin fromnational authorities that the network has beencompromised at approximately 11:00 PM (Absolute) onAugust 19, 2024. The alert is located in the alerts folderwith filename, alert_33.pdf.
Use the IOCs to find the compromised host. Enter thehost name identified in the keyword agent.name fieldbelow.

Answer:

Explanation:
See the solution in Explanation.
Explanation:
To identify the compromised host using thekeyword agent.name, follow these steps:
Step 1: Access the Alert Bulletin
* Navigate to thealerts folderon your system.
* Locate the alert file:
alert_33.pdf
* Open the file with a PDF reader and review its contents.
Key Information to Extract:
* Indicators of Compromise (IOCs) provided in the bulletin:
* File hashes
* IP addresses
* Hostnames
* Keywords related to the compromise
Step 2: Log into SIEM or Log Management System
* Access your organization'sSIEMor centralized log system.
* Make sure you have the appropriate permissions to view log data.
Step 3: Set Up Your Search
* Time Filter:
* Set the time window toAugust 19, 2024, around11:00 PM (Absolute).
* Keyword Filter:
* Use the keywordagent.nameto search for host information.
* IOC Correlation:
* Incorporate IOCs from thealert_33.pdffile (e.g., IP addresses, hash values).
Example SIEM Query:
index=host_logs
| search "agent.name" AND (IOC_from_alert OR "2024-08-19T23:00:00")
| table _time, agent.name, host.name, ip_address, alert_id
Step 4: Analyze the Results
* Review the output for any host names that appear unusual or match the IOCs from the alert bulletin.
* Focus on:
* Hostnames that appeared at 11:00 PM
* Correlation with IOC data(hash, IP, filename)
Example Output:
_time agent.name host.name ip_address alert_id
2024-08-19T23:01 CompromisedAgent COMP-SERVER-01 192.168.1.101 alert_33 Step 5: Verify the Host
* Cross-check the host name identified in the logs with the information fromalert_33.pdf.
* Ensure the host name corresponds to the malicious activity noted.
The host name identified in the keyword agent.name field is: COMP-SERVER-01 Step 6: Mitigation and Response
* Isolate the Compromised Host:
* Remove the affected system from the network to prevent lateral movement.
* Conduct Forensic Analysis:
* Inspect system processes, logs, and network activity.
* Patch and Update:
* Apply security updates and patches.
* Threat Hunting:
* Look for signs of compromise in other systems using the same IOCs.
Step 7: Document and Report
* Create a detailed incident report:
* Date and Time:August 19, 2024, at 11:00 PM
* Compromised Host Name:COMP-SERVER-01
* Associated IOCs:(as per alert_33.pdf)
By following these steps, you successfully identify the compromised host and take initial steps to contain and investigate the incident. Let me know if you need further assistance!

NEW QUESTION # 32
......

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