Rapid7, Inc.

Luis Lopes

Ralph McTeggart

Martin Hutchings

Sarah Addis

Niall Cochrane

A modification to an applied ruleset intended for consumption by intrusion detection systems (IDSs) is detected. A service event that is configured to push the applied ruleset to a set of test network sensors associated with the IDSs is triggered. A service subscribed to the service event updates the set of test network sensors with the applied ruleset and designates a configuration version to the applied ruleset. A notification is received from the set of test network sensors that the applied ruleset has been tested and is ready for deployment to other network sensors and a request is received to deploy the applied ruleset to a set of network sensors. A determination is made whether the request includes the configuration version designated to the applied ruleset by the service. If the request includes the configuration version designated to the applied ruleset, the request to deploy the applied ruleset to the set of network sensors is authorized. If the request does not include the configuration version designated to the applied ruleset, the request to deploy the applied ruleset to the set of network sensors is denied.

Secure verification of detection rules on test sensors

New intrusion detection system (IDS) rules to be deployed on an IDS that generates alerts based on an applied ruleset are accessed. A trial window that includes incorporating the new IDS rules into a candidate list to enable summarization and filtering of the alerts is started and the applied ruleset that includes existing IDS rules is supplemented with the candidate list that includes the new IDS rules. The applied ruleset is transmitted to a network sensor associated with the IDS upon the supplementation and alerts generated based on network events implicated by both the existing IDS rules and the new IDS rules in the applied ruleset are received from the IDS. Upon completion of the trial window, a set of alerts generated only by the new IDS rules in the applied ruleset are designated as suppressed alerts and a set of new IDS rules is eliminated from the applied ruleset upon determining that the set of new IDS rules generate a subset of alerts that exceed an alert threshold. The update and modified applied ruleset is then transmitted to the network sensor associated with the IDS.

Growing community of inventors

Galway, Ireland

Luis Lopes