A plugin for Firefox and IE.
Installed it earlier today and I'm impressed.SiteAdvisor helps protect you from all kinds of Web-based security threats including spyware, adware, spam, viruses, browser-based attacks, phishing, online fraud and identity theft.
Our automated testers continually patrol the Web to browse sites, download files, and sign-up for things with e-mail addresses. As you search, browse, download or register online, SiteAdvisor's safety ratings help you stay safe and in control.
Here's a report on kazaa.com :
Make sure to check the detailed analysis.
Gives a lot of details about the malicious dow,nloads,including what it changes in the registry.
Did you know that Freedownloadcenter.com bundles bargainbuddy in their Filezilla download?