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Cisco 300-215 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Incident Response Techniques25%- Detect incidents
  • 1. Analyze alerts from firewalls, IPS, and other sources
  • 2. Identify indicators of compromise (IoCs)
- Use Cisco technologies for response
  • 1. Cisco Umbrella Investigate
  • 2. Cisco SecureX
  • 3. Cisco Stealthwatch
  • 4. Cisco AMP for Endpoints/Network
- Respond to incidents
  • 1. Contain threats
  • 2. Triage and prioritize incidents
  • 3. Eradicate threats
Topic 2: Incident Response Processes20%- Implement proactive threat hunting
  • 1. Identify potential threats
  • 2. Conduct audits
- Conduct root cause analysis
  • 1. Analyze components for RCA report
  • 2. Identify root cause of incidents
- Perform post-incident activities
  • 1. Recommend mitigation actions
  • 2. Improve incident response plan
  • 3. Lessons learned
Topic 3: Fundamentals20%- Explain legal and regulatory considerations
  • 1. Compliance requirements
  • 2. Privacy concerns
- Explain digital forensics concepts
  • 1. Evidence preservation
  • 2. Forensic readiness
  • 3. Chain of custody
- Describe incident response concepts
  • 1. Incident response lifecycle (PICERL)
  • 2. Roles and responsibilities in incident response
  • 3. Incident response plan components
Topic 4: Forensics Techniques20%- Analyze digital evidence
  • 1. Timeline analysis
  • 2. Memory forensics
  • 3. Malware analysis basics
- Apply forensic tools
  • 1. Wireshark
  • 2. Splunk
  • 3. YARA
- Collect digital evidence
  • 1. Network traffic analysis
  • 2. Endpoint forensics
  • 3. Log analysis
Topic 5: Forensics Processes15%- Follow forensic investigation methodology
  • 1. Identification
  • 2. Reporting
  • 3. Analysis
  • 4. Examination
  • 5. Collection
  • 6. Preservation
- Apply evidence handling procedures
  • 1. Collection and preservation of volatile and non-volatile evidence
  • 2. Maintaining integrity of evidence

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Cisco Conducting Forensic Analysis & Incident Response Using Cisco Technologies for CyberOps 認定 300-215 試験問題 (Q32-Q37):

質問 # 32
Refer to the exhibit. An engineer needs to authenticate to the Cisco Umbrella Investigate API to retrieve details and traffic logs. What action is required in the script?
import requests
url = " https://investigate.api.umbrella.com/dnsdb/name/a/example.com.json " headers = {
" Authorization " : " " ,
" cache-control " : " no-cache "
}
response = requests.get(url, headers=headers)
print(response.text)

正解：C

解説：
The request already contains an Authorization header, but its value is empty. The engineer must place a valid access token in that field, normally in the form Authorization: Bearer < token > . Cisco's Investigate API documentation states that requests use HTTPS with Bearer-token authentication and that every request requires the token in the Authorization header. A new header is therefore unnecessary; the existing one must be populated. The endpoint is retrieving information, so the existing GET request is appropriate and adding PUT would change the operation incorrectly. Formatting is not the authentication failure. Tokens and API secrets must be protected, obtained through the approved Umbrella credential process, and never hard-coded in production source. This maps to CBRFIR Forensics Techniques objective 2.5, which includes scripting against Cisco Umbrella and other data sources. Cisco Umbrella Investigate authentication


質問 # 33
A scanner detected a malware-infected file on an endpoint that is attempting to beacon to an external site. An analyst has reviewed the IPS and SIEM logs but is unable to identify the file's behavior. Which logs should be reviewed next to evaluate this file further?

正解：B


質問 # 34
An employee's workstation is breached, and an attacker accesses a Microsoft file-share server and steals critical files. Which two actions enable a security engineer to retrieve successful and failed file-access logs from the Microsoft Windows Server 2016 file share? (Choose two.)

正解：A、C

解説：
Windows object-access auditing records file and folder activity in the Security event log when the required audit policy and object SACL are configured. Accordingly, the engineer can export the Security log through Event Viewer or preserve the corresponding EVTX data from C:\Windows\System32\winevt\Logs. Microsoft identifies events such as 4656 and 4663 as file-access auditing evidence; 4663 confirms that an access right was actually exercised. Application and System logs serve different purposes and are not the primary repositories for successful or failed object-access auditing. C:\Windows\Temp\Logs is also not the standard Event Log storage location. These selections align with CBRFIR Forensics Techniques objectives 2.2 and 2.3.
b: determine the required host files and locations, then analyze logs to identify evidence of compromise.
Preserve copied logs with hashes and documented chain of custody. Microsoft file-access auditing


質問 # 35
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?

正解：C

解説：
Comprehensive and Detailed Explanation:
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 ATT & CK 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.
Therefore, the correct answer is: C. process injection.


質問 # 36

正解：B

解説：
This Python script uses a combination of libraries (urllib, zlib, base64, and ssl) to:
Disable SSL certificate verification (ssl.CERT_NONE and check_hostname=False).
Construct a custom HTTPS opener with the specified SSL context.
Add a forged User-Agent header to mimic Internet Explorer 11.
Connect to the URL https://23.1.4.14:8443.
Download and execute base64-encoded and zlib-compressed content from that URL using:
exec(zlib.decompress(base64.b64decode(...).read()))
This shows a classic example of:
Downloading payloads from a remote server (23.1.4.14:8443).
Avoiding detection by disabling SSL verification.
Executing the payload dynamically with exec() after decoding and decompressing.
The main goal is clearly to initiate a connection to a remote command-and-control (C2) server on port 8443 and download/execute additional code.
Hence, the correct answer is: A. Initiate a connection to 23.1.4.14 over port 8443.


質問 # 37
......

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