Internet Explorer malicious code attack that was used in an attack last month on corporate networks,including Google is now public.IE error was exploited by hackers who attack computer networks, nearly three dozen large companies, between mid December 2009 and January 4, 2010. malware, which zero-day vulnerability in Internet Explorer in Google and other targeted attacks on corporate networks “used, was used to go after IE 6 in massive attack

The attack is very reliable for Internet Explorer 6 on Windows XP, and it can be adapted to work on newer versions browser.Researchers working on the investigation into the attacks say IE malware was simply a weapon used in the attacks. Hacker can use to run unauthorized software code on a victim is a deceptively viewing a specially crafted Web page.

Microsoft’s next set of security patches is due Feb. 9, giving hackers more than three weeks to exploit the flaw.