User Guide - Kaspersky Lab

Protection against network attacks 143
the future Firewall will apply the new rule for that connection without
warning you on screen.
Low Security – blocks only banned network activity, using block rules that
either were installed by with the program or that you created. However,
if there is a allow rule for an application with a higher priority than the
block rule, the program will allow the network activity of that application.
Allow all – allows all network activity on your computer. You are advised to
set protection to this level in extremely rare cases, when no active
network attacks have been observed and you fully trust all network
activity.
You can raise or lower the network security level by selected the existing level
you want, or by changing the settings for the current level.
To modify the network security level:
1. Open the application settings window and select Firewall under
Protection.
2. Adjust the slider under Enable Filtration System in the right window
pane (cf. Figure 47).
To configure the network security level:
1. Select the security level that best matches your preferences, as above.
2. Click on Settings under Filtration System and edit the Filtration
System module settings in the Settings: Firewall dialog.
12.1.1.2. Application rules
Kaspersky Internet Security includes a set of rules for the commonest Microsoft
Windows applications. These are programs whose network activity has been
analyzed in detail by Kaspersky Lab, and is strictly defined as either dangerous
or trusted.
Depending on the security level (see 12.1.1.1 on pg. 142) selected for the
Firewall, and the type of network (see 12.1.1.5 on pg. 152) on which the
computer is running, the list of rules for programs can be used in various ways.
For example, with Maximum protection any application network activity that
does not match the allow rules is blocked.
To work with the application rule list:
1. Open the application settings window and select Firewall under
Protection (cf Figure 47).
2. Click on Settings under Enable Filtration System.