We have a system wide issue. All of our clients at one location have had their browsers hijacked. Some internet services work, Skype, Outlook, etc, but anything needing the browser does not. We can ping internet sites just not browse using IE or Chrome. We have some Window 7, mostly windows 10 current release(1803). It generates the following regkey (Protected - It is a violation of Windows Policy to modify...) within the registry HKCU\Software\Microsoft\IE
Our AV (Sophos endpoint) did not find this, nor has Malwarebytes.
Any one seen this or have recommendations on how to remove?
Thanks
-Adam