Microsoft has released a patch to fix a mega critical flaw in its windows Shell. The flaw lets hackers booby-trap icons with malicious software that could let them control machines.
Normally Microsoft routinely releases software patches the second Tuesday of each month but thinks this flaw is so dangerous it needs to be done straight away.
Writing in his blog, Microsoft Trustworthy Computing response manager Christopher Budd said several families of malware have been attempting to attack this vulnerability. He said that releasing the update out of band was the best thing to do to help protect customers.
Some attacks have reportedly been directed at power plants and other vital infrastructure. People using computers running on any version of Windows software were urged to apply the update immediately, he added.