NanoProbe Technology Internet Security Testing for Windows Users
 by Steve Gibson, Gibson Research Corporation.

Shields UP! is checking YOUR computer's Internet
connection security . . . currently located at IP:

 63.24.208.145 


Please Stand By. . .

Attempting connection to your computer. . .
Shields UP! is now attempting to contact the Hidden Internet Server within your PC. It is likely that no one has told you that your own personal computer may now be functioning as an Internet Server with neither your knowledge nor your permission. And that it may be serving up all or many of your personal files for reading, writing, modification and even deletion by anyone, anywhere, on the Internet!
Your Internet port 139 does not appear to exist!
One or more ports on this system are operating in FULL STEALTH MODE! Standard Internet behavior requires port connection attempts to be answered with a success or refusal response. Therefore, only an attempt to connect to a nonexistent computer results in no response of either kind. But YOUR computer has DELIBERATELY CHOSEN NOT TO RESPOND (that's very cool!) which represents advanced computer and port stealthing capabilities. A machine configured in this fashion is well hardened to Internet NetBIOS attack and intrusion.
Unable to connect with NetBIOS to your computer.
All attempts to get any information from your computer have FAILED. (This is very uncommon for a Windows networking-based PC.) Relative to vulnerabilities from Windows networking, this computer appears to be VERY SECURE since it is NOT exposing ANY of its internal NetBIOS networking protocol over the Internet.

Before You Break Out
the Champagne...
It is true that this server was unable to connect to your machine just now — and that's definitely great news! But with the benefit of the incredible experience I'm gaining from the impact of this site's 10,334,943 (and counting) recent visitors, I'm rapidly evolving more robust and reliable means of determining a remote machine's Internet vulnerability.

What I could NOT do today,
I MIGHT be able to do tomorrow.

Useful as this facility is today, I have the feeling it's going to get better — and I'm working on a few new ideas right now. So please consider this site to be in "BETA" condition and please return here — at least briefly — a week or two from now to verify that your system is still hardened against all the experience I've gained during the first few weeks of this site's life.

When this message has disappeared, you'll know that I've explored every possible Windows NetBIOS file sharing avenue and penetration strategy that I, or anyone else, have imagined. I will be notifying the members of my User Managed eMail System when this site has stabilized, and also at any future time when significant new vulnerability detection has been added. You are invited to join our 619,702 members to receive these notifications.
A FALSE sense of security
is worse than being unsure.



This site also offers a quick Internet port-scanning facility. You may press your browser's BACK button to return to ShieldsUP! site home page, or scan your ports right now from here. For full information about "Ports" please see the rest of this website.

Pressing this button grants your formal permission and requests our web server
to attempt benign connections to ten of your computer's standard service ports:
Information gained will not be retained, viewed or
used by us in any way for any purpose whatsoever.
TWO NOTES: Shields UP! benignly probes the target computer at your location.
Since these probings must travel from our server to your computer, you should
be certain to have administrative right-of-way to conduct probative protocol tests
through any and all equipment located between your computer and the Internet.

ALSO: If you are using a personal firewall product which LOGS contacts by other
systems, you should expect to see entries from this site's probing IP addresses:
207.71.92.193 and 207.71.92.221. These are (obviously) not any form of
intrusion attempt or attack on your computer, so please do not be concerned
with their appearance in your firewall logs.

Thanks for using Shields UP! I hope it's been useful and informative for you.

For the most reliable results you are
invited to use our FREE IP Agent:

The ShieldsUP! tests depend upon accurately determining your computer's Internet Protocol (IP) address. If your IP address is incorrectly determined the wrong machine will be mistakenly tested. In addition, computers with multiple network connections — like a modem and a network adapter — can have more than one IP address. And machines with only one IP address can have it effectively "hidden" or "masqueraded" if the connection passes through any sort of firewall, proxy server, or other buffering agent.

IP Agent easily manages all such complications. It determines your machine's current IP address — or addresses — then contacts this ShieldsUP! website for you. If your machine had a single IP address you'll be taken right to the main ShieldsUP! page. If more than one IP address was found you'll be able to choose among the available addresses.

IP Agent is super small (less than 20k bytes) and quick to download since I wrote it — as I write everything — in 100% pure assembly language. Click the screen shot image above or any link in this box to quickly download IP Agent and give it a whirl!

Please help to prevent system intrusion by spreading the word and telling your Internet friends about this service. It will always be free, and it will be enhanced from time to time as other security needs and problems arise. I'll be glad to drop you a short eMail note when new solutions or significant improvements are made. Check out our "User-Managed eMail System" here!

The world's Internet is an incredible facility, but like any powerful tool it needs to be used with care, wisdom, and caution. Unfortunately, not everyone with access to the Internet has your best interests at heart. 

Press your browser's BACK button to return to where you were.


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The contents of this page are Copyright (c) 2001 by Gibson Research Corporation.
SpinRite, ChromaZone, ShieldsUP, NanoProbe, the character 'Moe' (shown above),
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