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Intrusion Detection
We have thousands of posts on a wide variety of open source and security topics, conveniently organized for searching or just browsing.



SANS Lion Worm Protection  01 April 2001 
Source: SANS - Posted by Nick DeClario   
Lion is a new worm, that is very similar to the Ramen worm. However, this worm is much more dangerous and should be taken seriously. It infects Linux machines with the BIND DNS server running. It is known to infect BIND version(s) 8.2, 8.2-P1, 8.2.1, 8.2.2-Px. BIND 8.2.3-REL and BIND 9 are not vulnerable. The BIND vulnerability is the TSIG vulnerability that was reported back on January 29, 2001.. . .
 
Digital sleuthing uncovers hacking costs  22 March 2001 
Source: ZDNet UK - Posted by Dave Wreski   
It took the intruder less than a minute to break into the university's computer via the Internet, and he stayed less than a half an hour. Yet finding out what he did in that time took researchers, on average, more than 34 hours each.. . .
 
Realisic Expectations for Intrusion Detection Systems  20 March 2001 
Source: Security Focus - Posted by Benjamin D. Thomas   
Intrusion detection forms an increasingly important segment of the security technology market. While intrusion detection systems were, until recently, both expensive and difficult to maintain, they have become more affordable. With the arrival of less expensive off-the-shelf solutions, IDSs are becoming . . .
 
Intrusion Detection Systems: An Opening For Hackers?  17 March 2001 
Source: NewsBytes - Posted by Nick DeClario   
System administrators who rely on intrusion detection systems to snag malicious hacker trying to break into their system may actually be lulling themselves into a false sense of security, the government's security watchdog warned today. The National Infrastructure Protection Center (NIPC), . . .
 
Responding to a Security Incident  14 March 2001 
Source: Linux Journal - Posted by Jen Olson   
The question that often comes up is what to do about it. Unless it's a financial or safety issue, it's probably going to get laughed at by the legal authorities, but it's worth reporting. .. We'll not go into detecting . . .
 
Analysis of the KNARK rootkit  14 March 2001 
Source: Toby Miller - Posted by Ryan W. Maple   
Toby Miller has written an analysis of the KNARK rootkit: "The purpose of this paper is to identify signatures related to the KNARK rootkit. This paper does not show how to install the rootkit nor does it make any comparisons . . .
 
Stopping Internet 'zombies' in their tracks  14 March 2001 
Source: Boston Globe - Posted by Nick DeClario   
A couple of Boston-area companies think they've found a way to control a common and devastating form of computer vandalism. Now the two firms are racing to get their sophisticated hardware and software into hundreds of key Internet chokepoints.. . .
 
PortSentry and Snort Compared  11 March 2001 
Source: linux.ie - Posted by Pete O'Hara   
A brief description of port sentry and snort. "A port scan detector that can be configured to bind to ports you want monitored, reporting scans made to these ports and optionally running a command to deal with the scanning host . . .
 
Honeypots: Bait for the Cracker  08 March 2001 
Source: Wired - Posted by Dave Wreski   
The Honeynet Project team, an invitation-only security group, has been working with the project, a network that exists only to allow the team to watch who cracks it, in order to determine what crackers do and why they do it. The . . .
 
'Decoy nets' gain backers in battle against hackers  07 March 2001 
Source: CNN - Posted by Ryan W. Maple   
This so-called "deception" network is envisioned as more than just a single server set up to be a "honeypot," where hackers may break in, find a dead end and have their activities recorded with an eye toward prosecution. Rather, the decoy . . .
 
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