From 2-spyware.com
Ndextraincomi.info is a domain name, which uses misleading claims to convince people to subscribe to intrusive third-party Push Notification service. Any web browser may start redirecting to this site if the system runs an ad-supported application located, which runs its files under C:\Program Files\ or C:\ProgramData directories. In case it’s an issue on macOS, you might find this misleading program under the Applications section within the Finder menu.