Fortinet, Inc.

Karel Chanivecky Garcia

A system is disclosed. The system includes at least one physical memory device and one or more processors coupled with the at least one physical memory device to receive an action indicating that a uniform resource locator (URL) may be malicious, redirect to a layered frame isolation (LFI) page within a browser, wherein the LFI comprises an extension page in the browser to provide isolation for the URL and display the LFI page.

Malicious document prevention mechanism

Web requests are intercepted and it is determined whether information is synchronously available to evaluate the web request. Responsive to not having information for synchronous evaluation, the web request can be redirected to a parking service to asynchronously obtain information to evaluate the web request. A response from the redirected web request including information for evaluation is received and stored. Then, web requests are reissued for synchronously evaluation by the browser. A decision can be made to allow, redirect, or block, based on the retrieved information.

Synchronously evaluating web requests in a web browser using asynchronous information services

A web request to the web browser is intercepted by the web browser extension to determine whether information is synchronously available to evaluate the web request. Responsive to not having information for synchronous evaluation, the web request is redirected to display a gateway page while asynchronous obtaining information from an external information provider server, the request tracked with a request identifier and storing the asynchronously gathered information for synchronous access along with the request identifier. Responsive to an automated notification from the web browser extension, the web request is reissued to the web browser by the gateway page to replace the gateway page with response content from the web request. The reissued web request is again intercepted by the web browser extension to synchronously evaluate the gathered information. The reissued web request is then based on the fetched.

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Surrey, Canada

Karel Chanivecky Garcia