As plain text, username/passwords traverse the network, ZxSniffer will
capture and display them on this screen.
*Note: Keep in mind that the traffic you see is completely dependent upon the
environment the computer ???sniffing??? resides in. For example, if the network
link you are using is connected to a network hub, you will be able to see all
traffic going through that hub to all other computers on that hub. If, however,
the network link you are using is connected to a switch, you will only be
able to see traffic specifically destined to/from your connection. There is a
way to ???sniff??? traffic on a switch to show all traffic to a specific or every
computer on a switch, which will be covered in Chapter 9.
244 Practical Hacking Techniques and Countermeasures
By clicking on the Traffic icon the traffic monitoring screen appears. As
traffic moves through the network the data is displayed on this screen.
From the data captured in this example, notice the column named Direction
because compared to other traffic monitoring applications ZxSniffer is
intelligent enough by simply flipping the arrow indicating the direction of the
traffic instead of entering a new line for each flow change. This makes it easier
for the user to track communications.
Sniffing Traffic 245
By clicking on the Save icon ZxSniffer will ask for a location to save the data
to. Give the captured data a filename and accept the default location and click Save.
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