Digital Forensic Certification Practice Exam

What event correlation approach does Albert employ in a security event monitoring system?

1. Fingerprint-Based Approach

2. Rule-Based Approach

3. Field-Based Approach

4. Graph-Based Approach

The correct answer is: Rule-Based Approach

The rule-based approach is instrumental in security event monitoring systems as it utilizes predefined criteria and logical rules to analyze and correlate events. This method enables security analysts to identify patterns of suspicious behavior by applying a set of established rules tailored to the organization’s security policies and the threat landscape. In practice, this approach allows for the automated identification of potential security incidents by comparing incoming data against the specific rules set forth. By doing so, it helps in filtering out false positives while effectively alerting analysts to genuine threats that require further investigation. An example of a rule might include triggering an alert if multiple failed login attempts are detected from a single IP address within a short timeframe, which could indicate a brute-force attack. This method is particularly advantageous for organizations that have a well-defined security posture and can customize their rules based on their operational context and threat intelligence. It is flexible and allows for continuous adjustments to adapt to evolving threats. While there are other correlation approaches, such as fingerprint-based, field-based, and graph-based methods, each has its limitations. Fingerprint-based approaches rely on specific signatures of known threats, which may not be practical against new or evolving attack types. Field-based approaches tend to focus on specific data fields, which may not capture the broader context of an