Is this a false Positive?
On monday a number of the user in our organisation received an alert a virus was found and had been removed. The alert came up each time a user loaded the company Intranet page which is hosted by Office 365 using SharePoint. After a little more investigation we found it was only users that use Internet Explorer and switching to Chrome did not have the alert at all.
We loaded a clean Windows 10 onto a spare laptop and installed Microsoft Security Essentials and it did not detect the virus. We then installed AVG and it also did not detect any virus.
We call the Microsoft Support and they said it was a false positive.
The supposed infection is from JS.Nemucod.2.Gen which has been around for over a year and both MSE and AVG confirmed they are able to detect this strain.
We have about 50 users affected by this and it is a massive disruption because it requests most users to restart
I have logged a ticket with F-Secure support on Monday and still no reply (ref:_00Db0JXpV._500b0mkIS7:ref)
We are using F-Secure Client Security 12 and 12.10 running on Windows 7 and Windows 10.
Any advice will be appreciated.