iframe

HTML element to embed one site into another

An iframe is an HTML element that can be used to embed the contents of one website into another. The embedded website can live on the same domain as the main site, or on an entirely different one. Many legitime websites use iframes and they have become popular with the growth of Ajax applications.

Iframes are also frequently used by malware authors to spread their malicious programs. By including an iframe of tiny dimensions into a hacked website, or one that the user is lured to visit using social engineering, they can allow the browser to visit a malware-serving website without the user realising. See also drive-by download.

Quick Links

Poll
The Japanese government is reported to have commissioned a 'defensive virus'. Is 'defensive' malware ever a good idea?
Yes
No
I don't know
Leave a comment
View 11 comments

99 Subscription Promo

VB100 certification
VB100 This month's VB100 test saw some major changes and a radical overhaul of the VB100 test methodology - for the first time allowing products to use their 'cloud' look-up systems. John Hawes has all the details.
See full results.

Virus Bulletin currently has 224,238 registered users.