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• Add Hosts File To Exclusions List In Malwarebytes

In an earlier blog post about, we briefly touched on the hosts file. The hosts file is like your speed dial directory for the internet. Some systems only have a few numbers stored and others have lots of entries. What if someone was able to change that directory and you end up calling a one dollar per second number when you wanted to call a relative?

Basically, that is what we will discuss here. Where is the hosts file located?The actual location of the hosts file is stored in the registry under the key, HKEYLOCALMACHINESYSTEMCurrentControlSetServicesTcpipParameters, in the value, DataBasePath. By default, this file’s folder location is (and has been since Windows NT/2000)%systemroot%SYSTEM32DRIVERSETC, where%systemroot% is usually the C:Windows directory. What kind of file is it?The hosts file does not have an extension, but it can be viewed by opening it with Notepad (or something similar). To replace or alter the hosts file, you will need Administrator privileges, but every user has “Read” permissions.Before resolving an internet request (to look up the IP that belongs to a domain name), Windows looks in the hosts file to see if there is a predefined entry for that domain name (the speed dial, remember?).

There is a laptop which is to be secured and only certain websites should be accessible.Reason is possible data theft by user or malware, from vpn-only-accessible websites which this laptop will be accessing daily.Laptop is physically secured with lock and in a surveilled environment, USB ports are disabled.For whitelisting particular sites, approach taken was to:. Set IP to DHCP but DNS is manually entered, given a bogus server IP,which is inaccessible.

Add Hosts File To Exclusions List In Malwarebytes

So DNS look-up doesn't work. Add hosts records to c:WindowsSystem32driversetchosts. So DNSlook-up for allowed websites works. By checking Chrome console errors, add other required asset hostingdomains to file above (i.e jquery of particular website is sourcedfrom cloudflare CDN and such.).

User has limited privileges and can't make changes to above.This method is cumbersome and I was wondering what other ways might be more suitable and easier to implement.Hosts file sample: X.X.X.X allowed-website.comY.Y.Y.Y cdn.asset-domain.com.