is the detection of an HTML formatted document that contains code attempting to exploit an Internet Explorer IFrame vulnerability.
This vulnerability allows a malicious HTML document, such as e-mail messages, to automatically execute when the document is viewed using Internet Explorer. It also effects e-mail clients that use Internet Explorer to view HTML formatted e-mail messages, such as Outlook and Outlook Express.
Microsoft has more information about this issue available from their Security Bulletin MS01-20, available at:
The fix for the vulnerability is available at: