Attackers are ramping up their attempts to exploit the vulnerability in the Windows Help and Support Center in Windows XP. There have been targeted attacks against the flaw for two weeks now, but experts have noticed a major increase in the volume and spread of them in recent days. Microsoft has not yet released a patch for the vulnerability, which was disclosed in early June. The U.S., Russia, Germany and a few other countries have seen the most attacks so far. The vulnerability also affects Windows Server 2003.
Source: https://threatpost.com/huge-increase-seen-attacks-windows-help-center-flaw-070110/74168/