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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.

Internet Attacks on Companies Up 28 percent, Report Says  09 July 2002 
Source: Computer User - Posted by Eric Lubow   
Internet attacks against public and private organizations around the world leapt 28 percent in the past six months, with most targeting technology, financial services and power companies, according to an industry report due out Monday. . .
Honeynet Project Reverse Challenge Winner Announced  08 July 2002 
Source: Honeynet Project - Posted by Dave Wreski   
The Honeynet Project today announced Dion Mendel as the winner of the Honeynet Reverse Challenge contest. "The Reverse Challenge is an effort to allow incident handlers around the world to all look at the same binary -- a unique tool captured in the wild -- and to see who can dig the most out of the tool and communicate what they've found in a concise manner.. . .
Honeynet Project Releases June Scan of the Month Results  28 June 2002 
Source: Honeynet Project - Posted by Dave Wreski   
This month's challenge is to make sense of a seemingly innocuous flurry of UDP packets. On the evening of Feb 15th, three different members of the Honeynet Research Alliance received a flurry of strange UDP packets, that at first look seemed to have no apparent purpose. This month's Scan of the Month challenge is to understand the purpose of these packets.. . .
What Really Is ‘Forensics’?  20 June 2002 
Source: SC Magazine - Posted by Chris Pallack   
First of all, all attacks are not created equal. There are script kiddie attacks, attacks by serious hackers, by insiders, by fraudsters, and attacks by just about any other malefactor you can imagine who has a bone to pick with his or her intended victim.. . .
LIDS FAQ v0.15  19 June 2002 
Source: - Posted by Dave Wreski   
Version 0.15 of the LIDS FAQ is available. LIDS is an enhancement for the Linux kernel written by Xie Huagang and Philippe Biondi. It implements several security features that are not in the Linux kernel natively. Some of these include: mandatory access controls (MAC), a port scan detector, file protection (even from root), and process protection. . . .
IDS at the Crossroads  07 June 2002 
Source: Information Security - Posted by Dave Wreski   
Four infosec innovators size up new threats and how IDSes are evolving to meet them. Gleichauf, Klaus, Ranum and Roesch are interviewed in this article. Intrusion detection is on the minds of many folks. How are threats evolving today?. . .
June Honeynet Scan of the Month  04 June 2002 
Source: Honeynet Project - Posted by Dave Wreski   
This month's challenge is to make sense of a seemingly innocuous flurry of UDP packets. All submissions are due no later then 22:00 GMT, Friday, 21 June. Results will be released Friday, 28 June. . . .
Aide 0.9 Released  04 June 2002 
Source: Aide Project - Posted by Dave Wreski   
AIDE (Advanced Intrusion Detection Environment) is a free replacement for Tripwire. It does the same things as the semi-free Tripwire and more. There are other free replacements available so why build a new one? All the other replacements do not achieve the level of Tripwire. And I wanted a program that would exceed the limitations of Tripwire.. . .
Intrusion Detection: Running a Hacker Simulation  30 May 2002 
Source: NewsFactor - Posted by Dave Wreski   
The most common type of hacker simulation is a remote scan of a company's network, which gives the target company an idea of what its networks look like to a hacker on the Internet. The cost of worldwide intellectual property theft, much of which occurs as a result of corporate espionage conducted through the Internet, may be as high as US$300 billion per year, according to industry watchers.. . .
Beyond intrusion detection  30 May 2002 
Source: vnunet - Posted by Pete O'Hara   
Making sense of security software event logs, whether it's from your firewall or an expensive intrusion detection system, can be like trying to drink from a fire hose. Even when you find a real problem, what do you do? But intrusion . . .
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