Intrusion Detection

Intrusion Detection System

Intrusion Detection

  • Intrusion detection is the process of monitoring a network or systems for malicious activity or policy violations

Intrusion Detection System

IDS

  • Intrusion Detection System (IDS), a system that combines hardware and software to detect intrusion
  • Raise the alarm when possible intrusion happens

Classifications and Pros and Cons

  • Misuse based (signature based)
    • Designed to detect known attacks by signatures
    • Less false alarms
    • Frequently manual update signatures dataset
    • Cannot detect novel (Zero-day) attacks
  • Anomaly based
    • Identifies the anomalies from normal behavior
    • Able to detect Zero-Day Attack
    • Profiles of normal activity are customized for every system
    • More false alarms
  • Hybrid
    • Combination of misuse and anomaly detection
    • Increases the detection rate and decreases the false alarm generation

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