US Patent 8087080 Inspection of downloadable contents for malicious codes

A web page available for download from a web server computer may include a reference to a web widget. When the web page is received in a client computer, the reference executes and retrieves the web widget from a security server computer. The web widget may be configured to detect when a cursor in the client computer is pointed to a link displayed on the web page. The web widget may communicate with a remotely located computer to determine if the link points to a downloadable file that contains malicious code. The web widget may display a warning message to alert a user of the client computer when the downloadable file contains malicious code.