My Avast detected file c:\windows\system32\drivers\eio.sys as Win32:Evo-gen (Susp). It was on 3rd April, file is still moved in chest. Last modification of file is shown 2004. Test in chest is negative, but if I try renew it, and then I select it, it is detected again. I sent it twice as false positive from chest, but without any reaction or info from Avast company.