According to independent reports released earlier this week by SecureWorks and Finjan, [b]10,000 or more websites are similarly infected. As of Tuesday, almost all of these were still infected.[/b] They are churning out malware, which preys on at least nine different vulnerabilities in programs such as the QuickTime media player, Yahoo! Messenger and Windows operating systems to install a backdoor on end users' computers.
http://www.channelregister.co.uk/2008/01/16/mysterious_web_infection_continues/
avast!: This is one definition you don’t want to take 10 weeks to add. Please.
"[b]The longer they will have the malicious code out there, the better the chances they'll infect people.[/b]"
Once the malware successfully finds an unpatched vulnerability, it installs the Rbot Trojan, or one of its variants. Many antivirus programs still fail to detect the exploit.