Virus on this part....... C:\Windows\SysWOW64\msiexec.exe

Someone help me!!!
Avast show me this on my computer, what should i do?? i run avast to delete the virus but it didn´t work

Blocked infection

URL: http://disorderstatus.ru/order.php
Infección: URL:Mal
Proceso: C:\windows\SysWOW64\msiexec.exe

and…

URL: http://disorderstatus.ru/order.php
Infección: URL:Mal
Proceso: C:\windows\SysWOW64\msiexec.exe

https://forum.avast.com/index.php?topic=53253.0