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| Section | Objectives |
|---|---|
| Topic 1: Incident Detection and Response | - SIEM operations
|
| Topic 2: Threat Intelligence and Cyber Threat Analysis | - Attack techniques and frameworks
|
| Topic 3: Security Operations and SOC Fundamentals | - SOC operations principles
|
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質問 # 100
You are a SOC analyst on duty during a high-severity incident involving a DDoS attack targeting your organization's e-commerce platform. The attack disrupts online transactions. Using SIEM tools and packet capture systems, you identify unusual traffic patterns and trace activity back to command-and-control (C2) servers directing a botnet. Your goal is to recommend an eradication strategy that will sever the attackers' control over infected devices and halt the attack. Which strategy should your team implement?
正解：D
解説：
"Neutralizing handlers" is the best match because it focuses on disrupting the botnet's command-and-control layer that coordinates the attack. In classic botnet terminology, handlers (or C2 nodes) issue instructions to compromised hosts. If you can block, sinkhole, or otherwise disrupt communication to those controlling nodes, you reduce the adversary's ability to direct traffic and sustain the DDoS. Rate limiting is a useful mitigation to reduce immediate impact on your services, but it does not sever attacker control; it is more a resilience measure than eradication. "Blocking potential attacks" is too generic and describes a broad defensive posture rather than a specific botnet-focused eradication action. "Disabling botnets" is an outcome, but it is not a precise operational strategy in the way "neutralizing handlers" is; disabling a botnet often requires a combination of takedowns, sinkholing, upstream provider coordination, and endpoint remediation- activities that are commonly operationalized by targeting the handler/C2 infrastructure. From a SOC standpoint, this also aligns with coordinated response: implement network blocks, collaborate with ISP/CDN, and use threat intel to identify additional C2 endpoints while continuing service-level mitigations.
質問 # 101
Which of the following factors determine the choice of SIEM architecture?
正解：B
解説：
質問 # 102
John, SOC analyst wants to monitor the attempt of process creation activities from any of their Windows endpoints.
Which of following Splunk query will help him to fetch related logs associated with process creation?
正解：D
解説：
)ComprehensiveDetailedStepbyStepExplanation:InWindowssecurityeventlogs, EventCode4688signifiesaprocesscreationevent.TheSplunkquery'index=windowsLogName=SecurityEventCode
=4688NOT(AccountName=)is used to fetch logs related to process creation activities. This query filters the logs to only show events where a new process has been created, which is indicated by EventCode 4688. The NOT (Account_Name=$)` part of the query excludes any events where the account name ends with a dollar sign, which typically represents a machine or service account.
References: The EC-Council's Certified SOC Analyst (CSA) program provides detailed knowledge on security operation center (SOC) operations, including log management and correlation, SIEM deployment, advanced incident detection, and incident response. The CSA course materials and study guides cover the use of Splunk for monitoring and analyzing security events, which would include the creation of such queries for process creation monitoring1
質問 # 103
Identify the password cracking attempt involving a precomputed dictionary of plaintext passwords and their corresponding hash values to crack the password.
正解：A
解説：
A Rainbow Table Attack involves using a precomputed table of hash values for every possible combination of characters for a given password policy. This table, known as a rainbow table, is then used to look up the corresponding plaintext password for a given hash value. The process involves the following steps:
* Precomputation: Generate the rainbow table by computing hash values for all possible password combinations according to the password policy.
* Storage: Store these precomputed hash values in a table, associating each with its plaintext password.
* Lookup: When a hash value is obtained during a password cracking attempt, search the rainbow table for the corresponding plaintext password.
* Match: If a match is found, the plaintext password associated with the hash value is the cracked password.
Rainbow tables are effective because they trade storage space for time, allowing for quicker password cracking compared to brute-force or dictionary attacks, which compute hash values on the fly.
References: The EC-Council's materials on password cracking techniques discuss various methods including dictionary attacks, brute-force attacks, and rainbow table attacks. Specifically, the EC-Council Learning Paths and Skill Packs provide detailed insights into these techniques, emphasizing the use of rainbow tables as a method of cracking passwords by comparing precomputed hash values to those obtained from a system12. Additionally, EC-Council's CyberQ platform offers practical exercises related to password cracking, including the use of rainbow tables2.
質問 # 104
Jony, a security analyst, while monitoring IIS logs, identified events shown in the figure below.
What does this event log indicate?
正解：C
質問 # 105
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