How to do it...

In this recipe we will use Maltego CE to gather a company's public IP information:

Starting from the graph screen, right-click on the example.com domain icon and select Paterva CTAS | DNS from Domain | To Website [Quick lookup]. You will now discover www.example.com:

Maltego - Graph screen with www.example.com

Against a real domain, try the following transforms to further propagate a list of hosts. Some of the transforms you may want to try are; Paterva CTAS | DNS from Domain | To DNS Name [Using DB] and Paterva CTAS | DNS from Domain | To DNS Name [Find common DNS names].

Now let's resolve the host names of all objects to their corresponding IP addresses. Start by highlighting multiple objects by clicking and dragging across the ones you want to select. Once those items are highlighted right-click and Select Paterva CTAS | Resolve to IP | To IP Address [DNS]:

Maltego - Graph screen with www.example.com

Let's obtain netblock information for www.example.com now that we have its IP address. Right-click on the IP address in the question, and select All Transforms | To Netblock [Using routing info]:

Maltego - Graph screen with www.example.com

We will be continuing to use Maltego for further examples, so, either save your graph at this point so that you can come back to it, or continue on with other operations.

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How to do it...