The Chief Information Security Officer (CISO) for an organization wants to develop custom IDS rulesets faster, prior to new rules being released by IDS vendors.
Which of the following BEST meets this objective?
Click on the arrows to vote for the correct answer
A. B. C. D.B.
The Chief Information Security Officer (CISO) wants to develop custom IDS rulesets faster, prior to new rules being released by IDS vendors. This is because custom IDS rules can provide more accurate detection of specific threats and can be updated faster than waiting for vendor updates.
Let's evaluate each of the given options and see which one best meets the objective:
A. Identify a third-party source for IDS rules and change the configuration on the applicable IDSs to pull in the new rulesets:
This option can be effective as it enables the organization to access updated IDS rulesets faster. However, it requires finding a reliable third-party source for IDS rules and configuring the IDS to use these rules. Additionally, there may be compatibility issues with the IDS and the new rules.
B. Encourage cybersecurity analysts to review open-source intelligence products and threat database to generate new IDS rules based on those sources:
This option can be effective as it encourages the organization's cybersecurity analysts to review open-source intelligence and threat databases to generate new IDS rules. However, this process can be time-consuming and may require significant expertise. Additionally, the effectiveness of the rules generated depends on the quality and accuracy of the intelligence sources.
C. Leverage the latest TCP- and UDP-related RFCs to arm sensors and IDSs with appropriate heuristics for anomaly detection:
This option involves leveraging the latest TCP- and UDP-related RFCs to arm sensors and IDSs with appropriate heuristics for anomaly detection. This can be effective as it ensures that the organization's IDS rules are based on the latest industry standards. However, this option does not address the need for custom IDS rules based on specific threats faced by the organization.
D. Use annual hacking conventions to document the latest attacks and threats, and then develop IDS rules to counter those threats:
This option can be effective as it provides an opportunity to document the latest attacks and threats and develop custom IDS rules to counter those threats. However, relying solely on annual hacking conventions may not be sufficient to keep up with the rapidly evolving threat landscape.
In conclusion, option A, identifying a reliable third-party source for IDS rules and configuring the IDS to use these rules, is the best option as it provides access to updated IDS rules faster than waiting for vendor updates. However, the organization should also consider combining this option with other approaches, such as option B or D, to develop custom IDS rules based on specific threats faced by the organization.