Wednesday, 9 January 2019

System & Network Threats Security

  • Worms - use spawn mechanism; standalone program
  • Internet worm
 - Exploited UNIX networking features (remote access) and bugs in finger and send-mail programs. (See next slide)
          - Grappling hook program uploaded main worm program
  • Port scanning
          - Automated attempt to connect to a range of ports on one or a range of IP addresses
  • Denial of Service
           - Overloaded the targeted computer preventing it from doing any useful work.
           - Distributed denial-of-service (DDOS) come from multiple sites at once.



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