ThreatSentry is an IIS ISAPI add-on, that continuously collects, analyze and organizes server events into an evolving baseline of acceptable activity. Each server connection is compared against this baseline to identify and take action against any activity falling outside of acceptable parameters. The program starts in a training mode were it starts to learn which activity should be considered normal and which not. The administrator can interact with the results to further fine tune the results. You can define a security policy that will act upon threats by blocking the IP address, sending alerts (email, pager, visual, audio) or stopping the web service.

The license of this software is Free Trial Software, the price is $99.00, you can free download and get a free trial.