What is Malware?

Malware is code designed to exploit and infect the person visiting a website. This is done by either compromised FTP accounts or from a code exploit on a hosted website (SQL injections, file upload, PHP script, etc).

The code embedded in your site will tend to be one of the two examples:

  • Hidden Iframe - When a user visits the site, they see the site normally but a hidden frame sends infected code to the visitor.
  • Obfuscated Javascript - When a user visits the site, a Javascript entry in the index page infects the visitor (usually at the start of the index page).

Here are a few additional resources to help prevent malware on your server:

  1. Google SafeBrowsing
  2. McAfee SiteAdvisor
  3. http://Stopbadware.org

For more information, see: http://en.wikipedia.org/wiki/Malware.