Welcome to the Virus Encyclopedia of Panda Security.
Exploit/iFrame is HTML code that is included in the body of an email message. This code allows a virus to exploit a vulnerability that affects Internet Explorer 5.01 and 5.5 SP-1, which allows files attached to email messages to be automatically run when the message is viewed through Outlook's Preview Pane.
It is exploited by worms like Klez, Nimda, Badtrans, Frethem, etc., in order to be run automatically.
The only way to know if you are exposed to this vulnerability is to find out the installed version of affected programs in order to install the corresponding security patches.
Panda Antivirus detects and eliminates the code of Exploit/iFrame that allows worms to exploit this Internet Explorer vulnerability to automatically run themselves.>