The analysis of which of the following will BEST help validate whether suspicious network activity is malicious?
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A. B. C. D.D.
Out of the given options, logs and system events are the best source for validating whether suspicious network activity is malicious or not. Here's why:
A. Intrusion detection system (IDS) rules: IDS rules are used to detect known patterns of attacks and trigger alerts when these patterns are detected. While these rules can help identify some malicious activity, they may not be able to detect sophisticated or new attacks that have not been previously documented in the IDS rules.
B. Penetration test reports: Penetration testing involves simulating an attack on a system to identify vulnerabilities and determine the effectiveness of security controls. While penetration testing can identify weaknesses in a system, it does not provide real-time monitoring or detection of malicious activity.
C. Vulnerability assessment reports: Vulnerability assessments are used to identify and prioritize vulnerabilities in a system. While these reports can help identify weaknesses in a system, they do not provide real-time monitoring or detection of malicious activity.
D. Logs and system events: Logs and system events provide a detailed record of system activity, including network traffic, user activity, and system events. By analyzing logs and system events, security analysts can identify patterns of behavior that may indicate malicious activity, such as unusual network traffic, failed login attempts, or unauthorized access attempts. Real-time monitoring of logs and system events can also enable security teams to respond quickly to suspicious activity and prevent or mitigate potential attacks.
In summary, while all of the options listed can help identify security risks and vulnerabilities, logs and system events provide the most detailed and real-time information to help validate whether suspicious network activity is malicious or not.