By Richard Bejtlich
Within the Tao of community safety tracking , Richard Bejtlich explores the goods, humans, and methods that enforce the NSM version. by means of concentrating on case reports and the applying of open resource instruments, he is helping you achieve hands-on wisdom of ways to raised safeguard networks and the way to mitigate harm from defense incidents.
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Extra resources for The Tao of network security monitoring beyond intrusion detection
It's called Windows Server 2003. This is no joke. Microsoft and other vendors retire old code for a purpose. Flaws in the design or common implementations of older products eventually render them unusable. " Some might argue that certain code, like Plan 9, doesn't need to be abandoned for newer versions. Also, using sufficiently old code reduces the number of people familiar with it. You'd be hard pressed to find someone active in the modern computer underground who could exploit software from ten or twenty years ago.
Detection through Traffic Analysis Is Better Than No Detection Related to the idea of sampling is the concept of traffic analysis. Traffic analysis is the examination of communications to identify parties, timing characteristics, and other meta-data, without access to the content of those communications.  Traffic analysis has been a mainstay of the SIGINT community throughout the last century and continues to be used today. )  The United States Navy sponsored research for the "Onion Routing" project, whose goal was creating a network resistant to traffic analysis and eavesdropping.
Similarly, the concept of I&W within NSM revolves around warnings. It's rare these days, in a world of encryption and high-speed networks, to be 100% sure that observed indicators reflect a true compromise. It's 40 Part I: Introduction to Network Security Monitoring Part I: Introduction to Network Security Monitoring 41 more likely the analysts will collect clues that can be understood only after additional collection is performed against a potential victim. Additional collection could be network-based, such as recording all traffic to and from a possible compromised machine.