Microsoft security software detects and removes this unwanted software.
This program makes changes to the Hosts file on your PC.
The Hosts file is used by your web browser to work out where to go. Malicious or unwanted software can change this file to stop you from going to certain websites, or to force you to go to other websites instead.
If you have changed the Hosts file yourself, you will need to exclude it from detection by your antivirus software.