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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.



Stealth encoding bypasses IDS protection  10 September 2001 
Source: TheRegister - Posted by Dave Wreski   
Cisco's Intrusion Detection System (IDS)is not the only technology that fails to protect ISS Web servers against stealth unicode attacks. An advisory by eEye Digital Security, reports that network and server sensors from ISS, Dragon Sensor 4.x, Snort (prior to version . . .
 
SC Mag: Remote Monitoring  04 September 2001 
Source: InfoSecurity Magazine - Posted by Jen Olson   
Why Outsource IDS Monitoring, Anyway? The simple answer to that, if there is one, is that organizations are caught between massive security requirements and miniscule security budgets. Outsourcing offers the benefits of economies of scale in that the . . .
 
Honeynet Project: September Scan Results  04 September 2001 
Source: Honeynet Project - Posted by Dave Wreski   
The purpose of this monthly project is to help the security community develop the forensic and analysis skills to decode blackhat attacks. This is done by taking signatures we have captured in the wild and challenging the security community to decode the signatures. . . .
 
Network Monitoring for Intrusion Detection  28 August 2001 
Source: SecurityFocus - Posted by Derrick Lewis   
In the world of intrusion detection, we tend to focus on detecting attacks and clearly anomalous activity. However, another important component of a complete intrusion detection solution is basic network monitoring and traffic analysis. Network monitoring collects information on connections, while . . .
 
Getting started in computer forensics  24 August 2001 
Source: ComputerWorld - Posted by Pete O'Hara   
Many private companies are turning to the military and law enforcement agencies to find computer forensics and security professionals. Some officers are leaving their posts for jobs in the corporate world, sometimes doubling or even tripling their salaries. That's what Jose . . .
 
NIST Special: Intrusion Detection Systems  20 August 2001 
Source: Cryptome - Posted by Dave Wreski   
This document translated from PDF by Cryptome provides a great overview of Intrusion Detection Systems. Intrusion detection is the process of monitoring the events occurring in a computer system or network and analyzing them for signs of intrusions, defined as attempts . . .
 
Dragon Claws its Way to the Top  16 August 2001 
Source: Network Computing - Posted by Dave Wreski   
This is a great (and lengthy) comparision of commercially available and freely available network intrusion detection devices. "To get a handle on the state of the IDS market, we decided to go back to school. Literally. We made the trip from our Neohapsis labs over to DePaul University in Chicago. There we set up the IDSnet and put 10 IDS products to the test . . .
 
Snort 1.8.1 Now Available  15 August 2001 
Source: snort.org - Posted by Dave Wreski   
This latest release includes SNMP alerting support, greatly improved stability, IDMEF XML alert support, new decoder for "%u encoded" HTTP traffic, limited wildcards/regex in the rules language, plus a new snort.org page.. . .
 
Honeypot for hackers  14 August 2001 
Source: Lexis-Nexis - Posted by Nick DeClario   
COMPUTER experts can now predict when a malicious hacker is about to strike, and sound the alarm days in advance. They are urging companies to use their technique to stop hackers getting into networks. "Regardless of who you are, you . . .
 
New virus travels in PDF files  08 August 2001 
Source: CNET - Posted by Dave Wreski   
Adobe's popular PDF file format--known to anyone who's ever called up a tax form on the IRS Web site--has generally been considered immune to viruses. But a new virus carried by programs embedded in PDF files raises concerns that the format . . .
 
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