Review Data Filtering Logs
The Data Filtering log ()
is another valuable source for investigating malicious network activity.
While you can periodically review the logs for all the files that
you are being alerted on, you can also use the logs to trace file
and data transfers to or from the victim IP address or user, and
verify the direction and flow of traffic: server to client or client
to server. To recreate the events that preceded and followed an
event, filter the logs for the victim IP address as a destination,
and review the logs for network activity.
Because Panorama aggregates information from all managed firewalls,
it presents a good overview of all activity in your network. Some
of the other visual tools that you can use to survey traffic on
your network are the Threat Map, Traffic
Map, and the Threat Monitor.
The threat map and traffic map ( or Traffic
Map) allow you to visualize the geographic regions for
incoming and outgoing traffic. It is particularly useful for viewing
unusual activity that could indicate a possible attack from outside,
such as a DDoS attack. If, for example, you do not have many business transactions
with Eastern Europe, and the map reveals an abnormal level of traffic
to that region, click into the corresponding area of the map to
launch and view the ACC information on the top applications, traffic
details on the session count, bytes sent and received, top sources
and destinations, users or IP addresses, and the severity of the
threats detected, if any. The threat monitor ()
displays the top ten threats on your network, or the list of top
attackers or top victims on the network.