[url removed by @Flexx]
Bitdefender should be able to help you remove the HAO.exiaoba.com browser hijacker. Bitdefender is one of the best known antimalware software that also offers protection against malware and other threats, including browser hijackers.
Here's how Bitdefender can help:
You can also check the link provided by Bitdefender support ( https://www.bitdefender.com/consumer/support/answer/2574/ ) as well as one from Malwaretips support (https://www.bitdefender.com/consumer/support/answer/2574/)
Regards