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Cisco 300-215 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Incident Response Techniques	25%	- Use Cisco technologies for response 1. Cisco Umbrella Investigate 2. Cisco SecureX 3. Cisco Stealthwatch 4. Cisco AMP for Endpoints/Network - Detect incidents 1. Analyze alerts from firewalls, IPS, and other sources 2. Identify indicators of compromise (IoCs) - Respond to incidents 1. Triage and prioritize incidents 2. Eradicate threats 3. Contain threats
Topic 2: Incident Response Processes	20%	- Perform post-incident activities 1. Recommend mitigation actions 2. Lessons learned 3. Improve incident response plan - Implement proactive threat hunting 1. Identify potential threats 2. Conduct audits - Conduct root cause analysis 1. Identify root cause of incidents 2. Analyze components for RCA report
Topic 3: Forensics Processes	15%	- Follow forensic investigation methodology 1. Analysis 2. Preservation 3. Examination 4. Reporting 5. Collection 6. Identification - Apply evidence handling procedures 1. Maintaining integrity of evidence 2. Collection and preservation of volatile and non-volatile evidence
Topic 4: Forensics Techniques	20%	- Apply forensic tools 1. Wireshark 2. YARA 3. Splunk - Collect digital evidence 1. Log analysis 2. Endpoint forensics 3. Network traffic analysis - Analyze digital evidence 1. Timeline analysis 2. Memory forensics 3. Malware analysis basics
Topic 5: Fundamentals	20%	- Describe incident response concepts 1. Roles and responsibilities in incident response 2. Incident response lifecycle (PICERL) 3. Incident response plan components - Explain legal and regulatory considerations 1. Privacy concerns 2. Compliance requirements - Explain digital forensics concepts 1. Evidence preservation 2. Chain of custody 3. Forensic readiness

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最新的 CyberOps Professional 300-215 免費考試真題 (Q163-Q168):

問題 #163
What is the primary role of hex editors such as HxD in digital forensics and incident-response investigations?

A. To run potentially harmful code in a controlled environment.
B. To oversee the flow of network data and recognize unauthorized intrusion attempts.
C. To examine and manipulate binary data and file structures.
D. To analyze and deconstruct the underlying source code of malware.

答案：C

解題說明：
A hex editor exposes a file or storage artifact as raw bytes, normally presenting hexadecimal values beside their ASCII interpretation. Investigators use that view to inspect file signatures and headers, locate embedded strings, identify byte patterns, compare altered regions, examine slack or unstructured data, and make controlled changes to a working copy when required. It is not a network-monitoring platform, so option B describes a packet or flow-analysis tool. Option C describes sandboxing or dynamic malware analysis. Option D is closer to a disassembler or decompiler, which translates executable machine instructions into assembly or higher-level representations. Cisco's current blueprint explicitly separates these roles: objective 1.6.a covers HxD, Hiew, and Hex Fiend in DFIR, while objective 1.6.b covers disassemblers and debuggers for basic malware analysis. Therefore, examining and manipulating binary data is the precise answer. Cisco CBRFIR v1.2 exam topics

問題 #164
Refer to the exhibit.

An alert came with a potentially suspicious activity from a machine in HR department. Which two IOCs should the security analyst flag? (Choose two.)

A. powershell.exe used on HR machine
B. cmd.exe starting powershell.exe with Base64 conversion
C. cmd.exe executing from \Device\HarddiskVolume3\
D. WScript.exe initiated by powershell.exe
E. WScript.exe acting as a parent of cmd.exe

答案：B,E

解題說明：
The exhibit shows a series of process executions that form a suspicious chain involving scripting engines and obfuscated commands:
* One critical indicator is cmd.exe executing PowerShell with obfuscated (Base64-encoded) arguments. The use of Base64 is a known method used by attackers to mask malicious commands.
This aligns with attack techniques defined under MITRE ATT&CK T1059 (Command and Scripting Interpreter) and T1086 (PowerShell abuse). Therefore, option D is valid.
* Another important IOC is WScript.exe acting as a parent of cmd.exe, which is abnormal in typical business environments. This indicates potential misuse of Windows Script Host (WSH) to launch commands, often seen in phishing or malware dropper scenarios. Thus, option E is also valid.
Options A and B by themselves are not definitive IOCs-PowerShell and cmd.exe are legitimate administrative tools and frequently used in Windows environments.
Option C is not supported by the exhibit-the reverse (powershell.exe initiated by WScript.exe) is what's seen, not the other way around.
These patterns align with the CyberOps Technologies (CBRFIR) 300-215 study guide, which specifies that chaining of interpreters (e.g., WScript # cmd # PowerShell) with encoded commands is a key indicator of compromise during forensic analysis.
Reference: CyberOps Technologies (CBRFIR) 300-215 study guide, Chapter on Identifying Malicious Activity in Host-Based Artifacts and Command-Line Analysis.

問題 #165
Refer to the exhibit.

What is occurring?

A. RDP is used to move laterally to systems within the victim environment.
B. Malware is modifying the registry keys.
C. Obfuscated scripts are getting executed on the victim machine.
D. The threat actor creates persistence by creating a repeatable task.

答案：D

解題說明：
The command in the image uses schtasks /create with the ONLOGON schedule and System user context to execute test.exe. This is a well-documented persistence technique, where an attacker ensures that a malicious executable is launched automatically at each system logon. This kind of scheduled task creation aligns with persistence techniques in the MITRE ATT&CK framework (T1053).
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問題 #166
Several previously unseen executable files are detected on an international bank's transaction servers after an overnight batch-processing update. The executables make covert outbound connections to a server in a jurisdiction known for harboring threat actors. Their creation time also coincides with a network-intrusion attempt that the SOC initially classified as unsuccessful. The IT engineer has collected the observations and available data. Which set of actions should occur next?

A. Lock down the transaction servers, verify the integrity of recent batch updates, and trace the outbound connections.
B. Escalate the matter to the incident-response team, compare the evidence with system baselines, and investigate the source of the intrusion attempt.
C. Suspend batch processing, examine network logs for anomalies, and collaborate with financial-sector cyber-intelligence units for a threat assessment.
D. Quarantine the transaction servers, reverse-engineer the executables, and analyze network traffic for data exfiltration.

答案：B

解題說明：
After initial collection, the engineer should escalate the suspected compromise to the incident-response team and begin structured analysis. Comparing the new executables, timestamps, services, hashes, and configurations with trusted baselines helps determine what changed and whether the overnight update was abused. Investigating the intrusion attempt's source connects the allegedly unsuccessful event to the later files and outbound communications. Options A and D begin potentially disruptive containment before the authorized response team has assessed the transaction systems' criticality and selected a strategy. Option C adds external information sharing before the organization has validated scope and facts. NIST SP 800-61r3 states that incident handlers collect and analyze evidence, prioritize response, and investigate what happened, how, and why; it also requires escalation based on risk. This corresponds to CBRFIR incident analysis, correlation, and response-process objectives. NIST SP 800-61r3

問題 #167
Refer to the exhibit.

Which two determinations should be made about the attack from the Apache access logs? (Choose two.)

A. The attacker uploaded the word press file manager trojan.
B. The attacker used r57 exploit to elevate their privilege.
C. The attacker logged on normally to word press admin page.
D. The attacker performed a brute force attack against word press and used sql injection against the backend database.
E. The attacker used the word press file manager plugin to upoad r57.php.

答案：D,E

問題 #168
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