A security researcher has warned of a vulnerability in older versions of the
Windows operating system that allows attackers to take full control of a PC by
luring its user to a booby-trapped website.
The flaw resides in the Windows Help and Support Center, a feature that
provides users with online technical support. Malicious hackers can exploit the
weakness of Windows by embedding commands in web addresses that activate the
feature's remote assistance tool, which allows administrators to execute
commands over the internet. The exploit works in XP and Server 2003 versions of
Windows and possibly others.