Fix It for Windows Shell

Microsoft has published an automated workaround for the newly discovered Windows Shell vulnerability that criminals are exploiting to seize control of computers.

The software giant has released a Fix It solution, and updated Security Advisory 2286198 accordingly. The workaround automatically changes operating system settings to protect users until a permanent patch is available. Previously, users had to make the changes manually, a process that risked bricking a PC in the event it wasn't carried out correctly.

Microsoft security response communications lead Christopher Budd warned that the workaround disables icon icons from being displayed as usual and recommended admins carefully test the fix before deploying it widely. Specifically, the change will cause folder and file icons on the task bar and start menu to be stripped of their graphical representations, making them appear as generic, white boxes. The Fix It will also require machines to be rebooted.

The stopgap measure comes as security researchers have found new ways to exploit the the critical vulnerability.

While the attacks seen to date have been highly targeted, security watchers warn they soon could become widespread. Microsoft hasn't said when it plans to offer a fix. The company's next patch release isn't scheduled until August 10, but officials haven't ruled out issuing an emergency fix ahead of that date.

Source: The Register.