To remove this kind of activity please follow these steps:
1. For firewall blocking rules:
Go to your Windows Firewall with Advanced Security. Then from the left menu select Outbound Rules.
Find following IP address: 188.8.131.52 right click on it and select Delete.
Find following IP address: 184.108.40.206 right click on it and select Delete.
2. For hosts file
Localize your hosts file (%WINDIR%\system32\drivers\etc\hosts).
Open it as administrator using notepad.
Find following lines:
Delete all those lines above and then save your hosts file.