Re: ForeScout ActiveScout (was: Re: Intrusion Prevention)

Oded,

I have a few follow-up questions. Since you guys surely have the proper intellectual property protection methods in place, I was hoping you could explain in a bit more detail:

On Sun, 2002-12-15 at 12:15, Oded Comay wrote:

> - It is independent of the payload of the attack. This enables detection
> of attacks not known to the security community.

Please define 'independent of the payload', perhaps in a example. Right now it sounds as if that sentence was taking of a marketing slick.

> - It is not sensitive to whether the attack comes from the same source (IP

And here is where I'm really curious about. How do you relate a packet from IP address A to a scan that came from IP address B a week ago? Consider using a simple class C with web, dns, and mail servers as an example.

> - The detection is extremely accurate, allowing for automatic blocking to
> be enabled without fear of blocking legitimate business.

Do you need help?

In addition to our free technical library, Pantek provides professional IT services to companies who utilize Open Source software: Learn more about Pantek's Technical Support offerings Place an order for 24/7/365 Technical Support here Learn more about Pantek, who we are, and what we do Chat with a Live Operator Related securityfocus.com Links bugtraq certification focus-bsd focus-ids focus-ih focus-linux focus-ms focus-sun focus-unix-other focus-virus forensics incidents libnet linux-secnews ms-secnews pen-test secpapers secprog sectools secureshell security-basics securityjobs sf-news vuln-dev webappsec Request more information about Pantek

I would assume you are making use of a white-list. Would I still be able to block half of the Internet through spoofs? Or are you watching the completion of the initial 3-way h/s to avoid spoofs?

> - Attacks are detected at an extremely early stage, when the payload

Uhm... how can you determine if the data constitutes an attack when there is no payload yet?

I'm mostly curious about the IP address claim. What kind of marker do you use to identify an 'attacker' (read, human) so that you can say with accuracy that it is the same guy now on this IP who was here days ago on an other?

I'm really more concerned about the solution to the technical challenge. I hope you can explain it publicly without a Non-Disclosure. After all, your technology should be protected through patents and what-not. There have been other vendors in the past who openly explained the technology behind their products, and those vendors are still in business. Please don't be afraid, but satisfy out longing for the technical truth, now that you sparked our interest...

Regards,
Frank