Kaspersky PURE firewall settings....

Does anyone use Kaspersky PURE 2.0 and if so have you tried the GRC Leak Test? If so what results did you get? I'm not sure if it just has a weak firewall or if I need to change some settings. Thanks.

Hi socom,

I'm guessing that you're concerned why Kaspersky's firewall fails the stealth test at GRC?


Kaspersky believe stealth mode does not offer any additional protection. Been this way for some time. Nothing to worry about, their Firewall is one of the best.

Particularities of the firewall in version 2009

No stealth mode
First thing some users will notice is that there is no stealth mode. This can be observed on tests like Shields Up or PC Flank. Having no stealth mode does not make you vulnerable, it simply means that your PC will report an error when an outside pc attempts to connect to you (in stealth mode it will do nothing). While this may seem good, it's not, the automated attacks like port scans or various worms are not interested, they will probe random IP addresses whether they are stealthed or not (a good example is Helkern, even if the firewall is stealthed the Intrusion Detection System still blocks Helkern attempts to infiltrate the PC).
Also stealth mode can create problems with different Server type applications, P2P applications or even file transfers on certain programs.
If you insist on having stealth mode go to the Network Packages section and set these rules to block:

Any Incoming TCP stream
Any Incoming UDP stream
ICMP Reply(in)


Also if you have a router it will stealth you and any changes you make in KIS will have no effect on the router's performance.

http://forum.kaspersky.com/index.php?showtopic=67972&st=0&p=633287&#entry633287

Lengthy discussion here on the subject:
http://www.wilderssecurity.com/showthread.php?t=313664

Thanks for the reassurance.

I have Kaspersky PURE 2.0. It has it's own firewall and I'd like to know if I should turn off the Window's firewall. I would think so but I want to check. I have a AT&T DSL Modem that has a firewall too. Thanks.

Merged from
http://www.bleepingcomputer.com/forums/topic462461.html/page__p__2779833__fromsearch__1#entry2779833
Continuation of topic
By Roger

Sorry about that...I should have did a search 1st. So should I turn off the Window's firewall?

Hi -
In a word , Yes - You only need one active Firewall working, just like one Antivirus program.

There are times when a modem / router will have a firewall as part of the setup, but it is blocking prior to hitting your computers system.

The following quote is from quietman7 one of our Experts on this topic
IMPORTANT NOTE: Using more than one software firewall on a single computer is not advisable. Why? Using two firewalls could cause issues with connectivity to the Internet or other unexpected behavior. Further, running multiple software firewalls can cause conflicts that are hard to identify and troubleshoot. Only one of the firewalls can receive the packets over the network and process them. Sometimes you may even have a conflict that causes neither firewall to protect your connection. However, you can use a hardware firewall (a router) and a software firewall (i.e. Kerio, ZoneAlarm, Comodo, etc) in conjunction.
Link is here >> http://www.bleepingcomputer.com/forums/topic407147.html/page__view__findpost__p__2413189

Regards -