Guide | How To Lock Hosts File To Prevent Hijacking

[Omnipotent]

Imagine clicking on www.thewindowsclub.com and seeing a completely different web site load in your browser. Malware can redirect Web addresses on your computer by altering your hosts file. This is referred to as the Host File Hijack.

To prevent Host file hijacks, you may navigate to it, right-click on it, select Properties and make it a Read only file. This will lock down your Hosts file and prevent any one or any malware from writing to it.

Source: Hosts File in Windows 10 / 8 / 7: Location, Edit, Lock, Manage

 

[Dmitry_rus]

prevent any one or any malware from writing to it

This way of Hosts protection sometimes works, but often fails. Most of modern malware can easily change attributes and successfully r/w Hosts. IMHO, only low-level driver which intercepts r/w requests may help in this situation. Some AV-solutions prevent your Hosts from changes by this method.