Invisible iFrame drive-by malware attacks explained [VIDEO]

Graham Cluley
Graham Cluley
@[email protected]

iFrames and script tags are being used by malicious hackers to serve up drive-by internet attacks, silently and invisibly.

iFrames allow webmasters to embed the content of one webpage into another, seamlessly.

There are legitimate reasons why some websites may want to do that – but what cybercriminals do is exploit the functionality (presumably they have been able to gain write access to the website) to deliver malware such as fake anti-virus or a PDF vulnerability exploit to infect your computer.

What’s sneaky is that malicious hackers can make the embedded content invisible to the naked eye, by making the window zero by zero pixels in size. You can’t see the threat, but your web browser is still dragging it down…

Read more in my article on the Naked Security website.

Found this article interesting? Follow Graham Cluley on Twitter, Mastodon, or Threads to read more of the exclusive content we post.

Graham Cluley is a veteran of the cybersecurity industry, having worked for a number of security companies since the early 1990s when he wrote the first ever version of Dr Solomon's Anti-Virus Toolkit for Windows. Now an independent analyst, he regularly makes media appearances and is an international public speaker on the topic of cybersecurity, hackers, and online privacy. Follow him on Twitter, Mastodon, Threads, Bluesky, or drop him an email.

What do you think? Leave a comment

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.