... denote the
time difference ofthe occurrences ofthe first event and the second
event
Resource Utilization
A variable for each resource in the system to record the utilization ofthe
resource ... determine whether theintrusion has been
successfully carried out
J. Wang. Computer Network Security Theory and Practice. Springer 2008
Intrusion Detection Policies
IDP are used to identify intrusion ... measures:
Threshold values of certain measures
Simple but inaccurate
Count No. of occurrences of certain events during a period of time
User profile
More accurate
Collect past events of a user to...
... denote the
time difference ofthe occurrences ofthe first event and the second
event
Resource Utilization
A variable for each resource in the system to record the utilization ofthe
resource ... Network Security Theory and Practice. Springer 2008
Chapter 9 Outline
9.1 Basic Ideas ofIntrusion Detection
9.2 Network-Based and Host-Based
Detections
9.3 Signature Detections
9.4 ... of time
Event Gauge
An integer variable for each measurable object in the system to
denote the current value ofthe object
Event Timer
An integer variable for two related events in the...
... seat.”
Developing the Hack
Mike, Alex, and Marco lugged the machine upstairs to the second floor
of a house where they had been offered the use of a spare bedroom. The
thrill ofthe experience would ... protect the identity of the
victim or to prevent a duplication ofthe crime. However, the basic vul-
nerabilities and nature ofthe incidents are accurate.
At the same time, because software ... method. One ofthe team would
begin to play and would call out the hand he got — the denomination
and suit of each ofthe five cards. Larry would enter the data into their
Chapter 1 Hacking the Casinos...
... seat.”
Developing the Hack
Mike, Alex, and Marco lugged the machine upstairs to the second floor
of a house where they had been offered the use of a spare bedroom. The
thrill ofthe experience would ... to a vibra-
tor in your pocket; we got the vibrators free by pulling them out of
old pagers. If the computer wants you to hold the third and the
TheArtof Intrusion
14
05_569597 ch01.qxd 1/11/05 ... how
fast the RNG iterated, all ofthe relevant idiosyncrasies ofthe machine,
and developed a program to take all of these variables into consideration
so that once we know the state of a particular...
... so, by imitating the pattern of
giving and caring, I, in a sense, follow the paths of their lives. I hope
they’ll forgive me for putting them on the back burner during the process
of writing this ... protect the identity of the
victim or to prevent a duplication ofthe crime. However, the basic vul-
nerabilities and nature ofthe incidents are accurate.
At the same time, because software ... to a vibra-
tor in your pocket; we got the vibrators free by pulling them out of
old pagers. If the computer wants you to hold the third and the
TheArtof Intrusion
14
05_569597 ch01.qxd 1/11/05...
... based intrusiondetection tutorial with a discussion ofthe rule-based analysis
process involving EOI and attack metrics. Then we introduced you to some ofthe current methods
of performing intrusion ... Based Intrusion
Detection Tutorial 1
Introduction to the basic approaches
and issues ofIntrusion Detection
Hello! Welcome to the first half of our network based intrusiondetection tutorial, ...
majority of them probably do not use intrusiondetection systems. Moreover, how many organizations,
do you think, regularly review their IDS logs after the scent of novelty wears off? The conditions...