US-Cert is recommending that you remove Quicktime for Windows. The warning comes on the heels of an article from Trend Micro, which is reporting that Apple has ended support for the popular software, and worse still, that there are active zero-day exploits available for the software which are not currently being used ‘in the wild’ – but that it would be only a matter of time before they are.
US-Cert Article:
Computers running QuickTime for Windows will continue to work after support ends. However, using unsupported software may increase the risks from viruses and other security threats. Potential negative consequences include loss of confidentiality, integrity, or availability of data, as well as damage to system resources or business assets. The only mitigation available is to uninstall QuickTime for Windows.
The Trend Micro articles says:
First, Apple is deprecating QuickTime for Microsoft Windows. They will no longer be issuing security updates for the product on the Windows Platform and recommend users uninstall it. Note that this does not apply to QuickTime on Mac OSX.
Second, our Zero Day Initiative has just released two advisories ZDI-16-241 and ZDI-16-242 detailing two new, critical vulnerabilities affecting QuickTime for Windows. These advisories are being released in accordance with the Zero Day Initiative’s Disclosure Policy for when a vendor does not issue a security patch for a disclosed vulnerability. And because Apple is no longer providing security updates for QuickTime on Windows, these vulnerabilities are never going to be patched.
How to uninstall Apple QuickTime for Windows from the Apple website here: https://support.apple.com/HT205771