tailieunhanh - NetBios explained

The Magic of NetBIOS In this guide you will learn how to explore the Internet using Windows XP and NetBIOS | The Magic of NetBIOS In this guide you will learn how to explore the Internet using Windows XP and NetBIOS How to Install NetBIOS How to Use Nbtstat The Net View Command What to Do Once You Are Connected How to Break in Using the XP GUI More on the Net Commands How Crackers Break in as Administrator How to Scan for Computers that Use NetBIOS How to Play NetBIOS Wargames An Evil Genius Tip for Win NT Server Users Help for Windows 95 98 SE and ME Users Not many computers are reachable over the Internet using NetBIOS commands - maybe only a few million. But what the heck a few million is enough to keep a hacker from getting bored. And if you know what to look for you will discover that there are a lot of very busy hackers and Internet worms searching for computers they can break into by using NetBIOS commands. By learning the dangers of NetBIOS you can get an appreciation for why it is a really truly BAD idea to use it. Newbie note a worm is a program that reproduces itself. For example Code Red automatically searched over the Internet for vulnerable Windows computers and broke into them. So if you see an attempt to break into your computer it may be either a human or a worm. If you run an intrusion detection system IDS on your computer you are certain to get a lot of alerts of NetBIOS attacks. Here s an example The firewall has blocked Internet access to your computer NetBIOS Session from TCP Port 1032 TCP Flags S . Occurred 2 times between 10 29 2002 7 38 20 AM and 10 29 2002 7 46 18 AM A Windows NT server on my home network which has addresses that all start with caused these alerts. In this case the server was just doing its innocent thing looking for other Windows computers on my LAN local area network that might need to network with it. Every now and .