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ISACA Certified Cybersecurity Operations Analyst Sample Questions (Q61-Q66):NEW QUESTION # 61
The user of the Accounting workstation reported thattheir calculator repeatedly opens without their input.
Perform a query of startup items for the agent.nameaccounting-pc in the SIEM for the last 24 hours.
Identifythe file name that triggered RuleName SuspiciousPowerShell. Enter your response below. Your responsemust include the file extension.
Answer:
Explanation:
See the solution in Explanation.
Explanation:
To identify thefile namethat triggered theRuleName: Suspicious PowerShellon theaccounting-pc workstation, follow these detailed steps:
Step 1: Access the SIEM System
* Open your web browser and navigate to theSIEM dashboard.
* Log in with youradministrator credentials.
Step 2: Set Up the Query
* Go to theSearchorQuerysection of the SIEM.
* Set theTime Rangeto thelast 24 hours.
Query Parameters:
* Agent Name:accounting-pc
* Rule Name:Suspicious PowerShell
* Event Type:Startup items or Process creation
Step 3: Construct the SIEM Query
Here's an example of how to construct the query:
Example Query (Splunk):
index=windows_logs
| search agent.name="accounting-pc" RuleName="Suspicious PowerShell"
| where _time > now() - 24h
| table _time, agent.name, process_name, file_path, RuleName
Example Query (Elastic SIEM):
{
"query": {
"bool": {
"must": [
{ "match": { "agent.name": "accounting-pc" }},
{ "match": { "RuleName": "Suspicious PowerShell" }},
{ "range": { "@timestamp": { "gte": "now-24h" }}}
]
}
}
}
Step 4: Analyze the Query Results
* The query should return a table or list containing:
* Time of Execution
* Agent Name:accounting-pc
* Process Name
* File Path
* Rule Name
Example Output:
_time
agent.name
process_name
file_path
RuleName
2024-04-07T10:45:23
accounting-pc
powershell.exe
C:UsersAccountingAppDataRoamingcalc.ps1
Suspicious PowerShell
Step 5: Identify the Suspicious File
* Theprocess_namein the output showspowershell.exeexecuting a suspicious script.
* Thefile pathindicates the script responsible:
makefile
C:UsersAccountingAppDataRoamingcalc.ps1
* The suspicious script file is:
calc.ps1
Step 6: Confirm the Malicious Nature
* Manual Inspection:
* Navigate to the specified file path on theaccounting-pcworkstation.
* Check the contents of calc.ps1 for any malicious PowerShell code.
* Hash Verification:
* Generate theSHA256 hashof the file and compare it with known malware signatures.
calc.ps1
Step 7: Immediate Response
* Isolate the Workstationisconnectaccounting-pcfrom the network.
* Terminate the Malicious Process:
* Stop the powershell.exe process running calc.ps1.
* Use Task Manager or a script:
powershell
Stop-Process -Name "powershell" -Force
* Remove the Malicious Script:
powershell
Remove-Item "C:UsersAccountingAppDataRoamingcalc.ps1" -Force
* Scan for Persistence Mechanisms:
* CheckStartup itemsandScheduled Tasksfor any references to calc.ps1.
Step 8: Documentation
* Record the following:
* Date and Time:When the incident was detected.
* Affected Host:accounting-pc
* Malicious File:calc.ps1
* Actions Taken:File removal and process termination.

NEW QUESTION # 62
Which of the following is MOST likely to result from misunderstanding the cloud service shared responsibility model?
  • A. Misconfiguration of access controls for cloud services
  • B. Being forced to remain with the cloud service provider due to vendor lock-In
  • C. Improperly securing access to the cloud metastructure layer
  • D. Falsely assuming that certain risks have been transferred to the vendor
Answer: D
Explanation:
Misunderstanding thecloud service shared responsibility modeloften leads to the false assumption that the cloud service provider (CSP) is responsible for securing all aspects of the cloud environment.
* What is the Shared Responsibility Model?It delineates the security responsibilities of the CSP and the customer.
* Typical Misconception:Customers may believe that the provider handles all security aspects, including data protection and application security, while in reality, the customer is usually responsible for securing data and application configurations.
* Impact:This misunderstanding can result in unpatched software, unsecured data, or weak access control.
Incorrect Options:
* B. Improperly securing access to the cloud metastructure layer:This is a specific security flaw but not directly caused by misunderstanding the shared responsibility model.
* C. Misconfiguration of access controls for cloud services:While common, this usually results from poor implementation rather than misunderstanding shared responsibility.
* D. Vendor lock-in:This issue arises from contractual or technical dependencies, not from misunderstanding the shared responsibility model.
Exact Extract from CCOA Official Review Manual, 1st Edition:
Refer to Chapter 3, Section "Cloud Security Models," Subsection "Shared Responsibility Model" - Misunderstanding the shared responsibility model often leads to misplaced assumptions about who handles specific security tasks.

NEW QUESTION # 63
Which of the following would BCST enable an organization to prioritize remediation activities when multiple vulnerabilities are identified?
  • A. Business Impact analysis (BIA)
  • B. Vulnerability exception process
  • C. executive reporting process
  • D. Risk assessment
Answer: D
Explanation:
Arisk assessmentenables organizations toprioritize remediation activitieswhen multiple vulnerabilities are identified because:
* Contextual Risk Evaluation:Assesses the potential impact and likelihood of each vulnerability.
* Prioritization:Helps determine which vulnerabilities pose the highest risk to critical assets.
* Resource Allocation:Ensures that remediation efforts focus on the most significant threats.
* Data-Driven Decisions:Uses quantitative or qualitative metrics to support prioritization.
Other options analysis:
* A. Business Impact Analysis (BIA):Focuses on the impact of business disruptions, not directly on vulnerabilities.
* B. Vulnerability exception process:Manages known risks but does not prioritize them.
* C. Executive reporting process:Summarizes security posture but does not prioritize remediation.
CCOA Official Review Manual, 1st Edition References:
* Chapter 5: Risk Assessment Techniques:Emphasizes the importance of risk analysis in vulnerability management.
* Chapter 7: Prioritizing Vulnerability Remediation:Guides how to rank threats based on risk.

NEW QUESTION # 64
Which of the following has been established when a business continuity manager explains that a critical system can be unavailable up to 4 hours before operation is significantly impaired?
  • A. Maximum tolerable downtime (MID)
  • B. Service level agreement (SLA)
  • C. Recovery time objective (RTO)
  • D. Recovery point objective (RPO)
Answer: C
Explanation:
TheRecovery Time Objective (RTO)is themaximum acceptable timethat a system can be down before significantly impacting business operations.
* Context:If thecritical system can be unavailable for up to 4 hours, the RTO is4 hours.
* Objective:To define how quickly systems must be restored after a disruption tominimize operational impact.
* Disaster Recovery Planning:RTO helps design recovery strategies and prioritize resources.
Other options analysis:
* A. Maximum tolerable downtime (MTD):Represents the absolute maximum time without operation, not the target recovery time.
* B. Service level agreement (SLA)efines service expectations but not recovery timelines.
* C. Recovery point objective (RPO)efines data loss tolerance, not downtime tolerance.
CCOA Official Review Manual, 1st Edition References:
* Chapter 5: Business Continuity and Disaster Recovery:Explains RTO and its role in recovery planning.
* Chapter 7: Recovery Strategy Planning:Highlights RTO as a key metric.

NEW QUESTION # 65
The network team has provided a PCAP file withsuspicious activity located in the Investigations folderon the Desktop titled, investigation22.pcap.
What date was the webshell accessed? Enter the formatas YYYY-MM-DD.
Answer:
Explanation:
See the solution in Explanation.
Explanation:
To determine thedate the webshell was accessedfrom theinvestigation22.pcapfile, follow these detailed steps:
Step 1: Access the PCAP File
* Log into the Analyst Desktop.
* Navigate to theInvestigationsfolder on the desktop.
* Locate the file:
investigation22.pcap
Step 2: Open the PCAP File in Wireshark
* LaunchWireshark.
* Open the PCAP file:
mathematica
File > Open > Desktop > Investigations > investigation22.pcap
* ClickOpento load the file.
Step 3: Filter for Webshell Traffic
* Since webshells typically useHTTP/Sto communicate, apply a filter:
http.request or http.response
* Alternatively, if you know the IP of the compromised host (e.g.,10.10.44.200), use:
nginx
http and ip.addr == 10.10.44.200
* PressEnterto apply the filter.
Step 4: Identify Webshell Activity
* Look for HTTP requests that include:
* Common Webshell Filenames:shell.jsp, cmd.php, backdoor.aspx, etc.
* Suspicious HTTP Methods:MainlyPOSTorGET.
* Right-click a suspicious packet and choose:
arduino
Follow > HTTP Stream
* Inspect the HTTP headers and content to confirm the presence of a webshell.
Step 5: Extract the Access Date
* Look at theHTTP request/response header.
* Find theDatefield orTimestampof the packet:
* Wireshark displays timestamps on the left by default.
* Confirm theHTTP streamincludes commands or uploads to the webshell.
Example HTTP Stream:
POST /uploads/shell.jsp HTTP/1.1
Host: 10.10.44.200
User-Agent: Mozilla/5.0
Date: Mon, 2024-03-18 14:35:22 GMT
Step 6: Verify the Correct Date
* Double-check other HTTP requests or responses related to the webshell.
* Make sure thedate fieldis consistent across multiple requests to the same file.
2024-03-18
Step 7: Document the Finding
* Date of Access:2024-03-18
* Filename:shell.jsp (as identified earlier)
* Compromised Host:10.10.44.200
* Method of Access:HTTP POST
Step 8: Next Steps
* Isolate the Affected Host:
* Remove the compromised server from the network.
* Remove the Webshell:
rm /path/to/webshell/shell.jsp
* Analyze Web Server Logs:
* Correlate timestamps with access logs to identify the initial compromise.
* Implement WAF Rules:
* Block suspicious patterns related to file uploads and webshell execution.

NEW QUESTION # 66
......
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