Intruders Detection Intruder detection is the art of detecting intrudersbehind attacks as unique persons. This technique tries to identify the person behind an attack by analyzing their computational behavior
Need Of Intruder DetectionDetermining whether an intruder hasgain or has attempted to gainunauthorized access to the systemTwo groups of intruders: External Internal
Some Techniques Keystrokes Dynamics Command Used Command Sequence IP Address Used ISP Country, City Ports Used
Keystrokes DynamicsKeystroke Dynamics is paramount in Intruder Detectiontechniques because it is the only parameter that has beenclassified as a real behavioural biometric pattern.Keystroke dynamics analyze times between keystrokesissued in a computer keyboard or cellular phone keypadsearching for patterns. First techniques used statistics andprobability concepts like standard deviations andMean, later approaches use data mining, neuralnetworks, Support Vector Machine, etc.
Intruder Detection System First became needed in late 70s Originally used with single systems OS produced audit records that were process by the IDS IDS has expanded to distributed systems and networks
Intruder Prevention Requiring passwords to be submitted Thanks before users can access the system Fixing or vulnerabilities patching known Blocking network access Restricting physical access