Cisco 300-215 Online Practice Questions and Exam Preparation

Cisco 300-215 Online Questions & Answers

• Question 81:

  Refer to the exhibit.

  

  The application x-dosexec with hash 691c65e4fb1d19f82465df1d34ad51aaeceba14a78167262dc7b2840a6a6aa87 is reported as malicious and labeled as "Trojan.Generic" by the threat intelligence tool. What is considered an indicator of compromise?

  A. modified registry
  B. hooking
  C. process injection
  D. data compression
  C. process injection

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  Explanation Explanation/Reference:Comprehensive and Detailed The exhibit lists several behaviors under categories such as Remote Access, Stealer/Phishing, Persistence, and Evasive Marks. Notably, under "Persistence" it states: "Writes data to a remote process" This behavior is indicative of "process injection," a technique where malware writes or injects malicious code into the address space of another process. This allows the malware to evade detection and run within the context of a legitimate process. This matches the MITRE ATTandCK technique T1055 (Process Injection), which is also discussed in the Cisco CyberOps Associate guide under evasion and persistence tactics used by malware. While modified registry and data compression are possible signs of malware, they are not explicitly referenced in the exhibit. The definitive indicator shown is related to process injection.

• Question 82:

  Refer to the code.

  New-Item -Path HKCU:\Software\Classes -Name Folder -Force;

  New-Item -Path HKCU:\Software\Classes\Folder -Name shell -Force;

  New-Item -Path HKCU:\Software\Classes\Folder\shell -Name open -Force;

  New-Item -Path HKCU:\Software\Classes\Folder\shell\open -Name command -Force;

  Set-ItemProperty -Path "HKCU:\Software\Classes\Folder\shell\open\command" -Name "(Default)" -Value "";

  Set-ItemProperty -Path "HKCU:\Software\Classes\Folder\shell\open\command" -Name "DelegateExecute" -Value ""

  What does the exhibit indicate?

  A. The new file is created under the Software\Classes disk folder.
  B. A UAC bypass is created by modifying user-accessible registry settings.
  C. A scheduled task named "DelegateExecute" is created.
  D. The shell software is modified via PowerShell.
  B. A UAC bypass is created by modifying user-accessible registry settings.

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  Explanation Explanation/Reference:The exhibit shows a PowerShell script that modifies registry keys under: HKCU:\Software\Classes\Folder\shell\open\command This technique is commonly associated with a UAC (User Account Control) bypass . Specifically: It creates a new custom shell command path for opening folders. The key registry property"DelegateExecute"is set, which is a known bypass method. If set without a value, it may cause Windows to run commands with elevated privileges without showing the UAC prompt. The use ofHKCU(HKEY_CURRENT_USER) rather thanHKLM(HKEY_LOCAL_MACHINE) allows the attacker to bypass permissions since HKCU is writable by the current user. This registry hijack can be leveraged by a malicious actor to execute arbitrary commands with elevated rights. This is identified in the Cisco CyberOps study material under "UAC bypass techniques," which describes: "Attackers often create or modify registry keys like DelegateExecute to hijack the default behavior of applications and elevate privileges". Thus, option B is correct: the exhibit demonstrates a UAC bypass using user-accessible registry modification.

• Question 83:

  Refer to the exhibit.

  

  An engineer is analyzing a .LNK (shortcut) file recently received as an email attachment and blocked by email security as suspicious. What is the next step an engineer should take?

  A. Delete the suspicious email with the attachment as the file is a shortcut extension and does not represent any threat.
  B. Upload the file to a virus checking engine to compare with well-known viruses as the file is a virus disguised as a legitimate extension.
  C. Quarantine the file within the endpoint antivirus solution as the file is a ransomware which will encrypt the documents of a victim.
  D. Open the file in a sandbox environment for further behavioral analysis as the file contains a malicious script that runs on execution.
  D. Open the file in a sandbox environment for further behavioral analysis as the file contains a malicious script that runs on execution.

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  Explanation Explanation/Reference:The metadata in the exhibit reveals a strong indicator that this .LNK file (shortcut) is malicious: The shortcut file is named "ds7002.pdf" but actually points to the execution of PowerShell:# Full path: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Arguments include:# -noni -ep bypass $z = '...'; indicating an attempt to run a PowerShell script with execution policy bypassed (a known tactic for fileless malware delivery). The file is masked as a PDF (common social engineering technique), and PowerShell execution via . LNK is a signature technique used by many malware families to initiate second-stage payloads or scripts. Given this, the correct and safest course of action is to: # Open the .LNK file in a sandbox environment (D). This enables safe behavioral analysis to observe what actions it attempts upon execution without endangering live systems. Other options are inappropriate: A (ignoring the threat due to extension) is dangerous -- .LNKs can trigger code. B (upload to virus engine) is only helpful for known malware and lacks behavioral context. C (quarantine) is preventive but not investigative -- sandboxing provides visibility. CyberOps Technologies (CBRFIR) 300-215 study guide, Chapter on "Threat Hunting and Malware Analysis," section covering shortcut (.LNK) based attacks, PowerShell-based threats, and sandbox behavioral analysis strategies.

• Question 84:

  An organization experienced a sophisticated phishing attack that resulted in the compromise of confidential information from thousands of user accounts. The threat actor used a land and expand approach, where initially accessed account was used to spread emails further. The organization's cybersecurity team must conduct an in-depth root cause analysis to uncover the central factor or factors responsible for the success of the phishing attack. The very first victim of the attack was user with email [email protected]. The primary objective is to formulate effective strategies for preventing similar incidents in the future. What should the cybersecurity engineer prioritize in the root cause analysis report to demonstrate the underlying cause of the incident?

  A. investigation into the specific vulnerabilities or weaknesses in the organization's email security systems that were exploited by the attackers
  B. evaluation of the organization's incident response procedures and the performance of the incident response team
  C. examination of the organization's network traffic logs to identify patterns of unusual behavior leading up to the attack
  D. comprehensive analysis of the initial user for presence of an insider who gained monetary value by allowing the attack to happen
  A. investigation into the specific vulnerabilities or weaknesses in the organization's email security systems that were exploited by the attackers

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  In phishing incidents, especially with successful lateral movement (land and expand), the most critical factor is usually weaknesses in email security systems --such as lack of advanced phishing detection, weak DMARC/DKIM/SPF policies, or insufficient user behavior monitoring. To prevent recurrence, the root cause analysis must focus on what allowed the phishing email to bypass defenses and how initial credentials were compromised. This aligns with best practices from the Cisco CyberOps v1.2 Guide underEmail Threat Vectors and Security Control Weaknesses . CyberOps Technologies (CBRFIR) 300-215 study guide, Chapter on Threat Analysis and Root Cause Reporting. Let me know if you'd like the next batch of questions formatted and verified in the same way.

• Question 85:

  A threat actor attempts to avoid detection by turning data into a code that shifts numbers to the right four times. Which anti-forensics technique is being used?

  A. encryption
  B. tunneling
  C. obfuscation
  D. poisoning
  C. obfuscation

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  Explanation Explanation/Reference:This scenario describes a substitution cipher , where data is made unreadable or less recognizable without altering its functionality. According to the Cisco CyberOps Associate guide, obfuscation includes techniques such as shifting, encoding, and symbol manipulation to mask the true nature of data or code: "A very well-known cipher, the Caesar cipher... shifts the letter of the alphabet by a fixed number... This technique is a form of data obfuscation used to bypass detection mechanisms.".

• Question 86:

  Which magic byte indicates that an analyzed file is a pdf file?

  A. cGRmZmlsZQ
  B. 706466666
  C. 255044462d
  D. 0a0ah4cg
  C. 255044462d

  ---

  The magic number (also known as a magic byte) is a sequence of bytes used to identify the format of a file. For PDF files, the standard magic number is: 25 50 44 46, which translates to %PDF in ASCII. Option (255044462d) begins with25 50 44 46, confirming C it's a PDF file signature. This is a key forensic detail when performing file type identification and validation of potentially obfuscated or renamed files.

• Question 87:

  An organization recovered from a recent ransomware outbreak that resulted in significant business damage. Leadership requested a report that identifies the problems that triggered the incident and the security team's approach to address these problems to prevent a reoccurrence. Which components of the incident should an engineer analyze first for this report?

  A. impact and flow
  B. cause and effect
  C. risk and RPN
  D. motive and factors
  B. cause and effect

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  To prepare a post-incident report, the cause of the incident (what enabled it) and the effect (what damage was done) are the primary components analyzed first. This allows teams to understand vulnerabilities exploited and the consequences, forming the basis for corrective action. The Cisco CyberOps guide recommends beginning with root cause analysis followed by impact assessment to guide future prevention strategies.

• Question 88:

  What is the steganography anti-forensics technique?

  A. hiding a section of a malicious file in unused areas of a file
  B. changing the file header of a malicious file to another file type
  C. sending malicious files over a public network by encapsulation
  D. concealing malicious files in ordinary or unsuspecting places
  D. concealing malicious files in ordinary or unsuspecting places

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  Explanation Explanation/Reference:Steganography is the anti-forensics technique of hiding malicious content within seemingly innocent files, such as image, audio, or video files. The goal is to conceal data or code in a way that avoids suspicion and detection, thereby making traditional security inspection tools ineffective unless they are explicitly designed to detect hidden data within media files. Steganography differs from encryption because it does not simply make data unreadable; it hides the existence of the data itself. It is commonly used in cyber operations to hide command-and-control instructions or to exfiltrate sensitive information in covert ways. CyberOps Technologies (CBRFIR) 300-215 study guide, Chapter on Evasion and Obfuscation Techniques, Anti-Forensics, Steganography Section.

• Question 89:

  Which issue is related to gathering evidence from cloud vendors?

  A. Deleted data cannot be recovered in cloud services.
  B. There is limited access to physical media.
  C. Forensics tools do not apply on cloud services.
  D. The chain of custody does not apply on cloud services.
  B. There is limited access to physical media.

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  Explanation Explanation/Reference:In cloud environments, investigators typically do not have access to the physical storage devices where the data resides. This restricts traditional forensic processes, such as imaging or direct disk access, which are commonly used in on-premises investigations.

• Question 90:

  What is an issue with digital forensics in cloud environments, from a security point of view?

  A. weak cloud computer specifications
  B. lack of logs
  C. no physical access to the hard drive
  D. network access instability
  C. no physical access to the hard drive

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  One of the primary challenges of cloud forensics is the inability to physically access the underlying hardware (e.g., the hard drives storing VM or container data). This restricts investigators from performing traditional disk imaging and handling procedures, which are crucial for maintaining evidence integrity. This limitation is widely recognized in cloud forensics frameworks.