CYB236 Chapter 6: Signature Detection Techniques
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Questions and Answers

What is a signature in the context of Signature-Based IDS Detection?

  • A pattern within a packet or a series of packets that corresponds to a known threat (correct)
  • A network protocol
  • A type of firewall rule
  • A type of network traffic

    • What is the purpose of the SNORT rule in the example?

  • To monitor network traffic usage
  • To block TCP traffic on port 443
  • To scan for viruses on a network
  • To detect and alert on TCP SYN flood attacks to a web server (correct)

    • What is the CONFICKER worm an example of?

  • A type of firewall
  • A type of virus
  • A known threat that can be detected by a signature (correct)
  • A type of network protocol

    • What is the advantage of using signature-based IDS detection?

    <p>It can detect known threats</p> Signup and view all the answers

    What is the condition that triggers the SNORT rule in the example?

    <p>If a client sends more than 100 TCP SYN requests to the server within 10 seconds</p> Signup and view all the answers

    What is the purpose of the detection filter in the SNORT rule?

    <p>To track the traffic by destination and count the number of requests within a certain time period</p> Signup and view all the answers

    What is the purpose of the SNORT rule designed to prevent ICMP floods?

    <p>To prevent clients from sending more than 500 ICMP packets within 3 seconds</p> Signup and view all the answers

    What is the maximum allowed size of an IP packet according to the IP protocol?

    <p>65,536 bytes</p> Signup and view all the answers

    What is the threshold for detection of a brute force attack on SSH?

    <p>5 login attempts in 60 seconds</p> Signup and view all the answers

    What is the purpose of the SNORT rule with sid:1111111?

    <p>To detect Ping of Death attacks</p> Signup and view all the answers

    What is the name of the dataset mentioned in the text for intrusion detection?

    <p>All of the above</p> Signup and view all the answers

    What is the classtype of the SNORT rule designed to prevent ICMP floods?

    <p>icmp-event</p> Signup and view all the answers

    What is the purpose of the detection_filter in the SNORT rule designed to prevent ICMP floods?

    <p>To track by destination IP address and count the packets</p> Signup and view all the answers

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