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Dos ddos
Dos ddos
Dos ddos
Dos ddos
Dos ddos
Dos ddos
Dos ddos
Dos ddos
Dos ddos
Dos ddos
Dos ddos
Dos ddos
Dos ddos
Dos ddos
Dos ddos
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Dos ddos

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Transcript

  • 1. DOS/DDOS CP/MMS-DOS MS” Microsoft◦PC-DOS PC” Per◦Novell’s DOS DR-DOS Digital Research
  • 2. Distributed Denial of Service (DDoS) DDoSICTDDoS
  • 3. DDoSSYN flood, UDP flood, ICMP flood, Smurf, Fraggle
  • 4. SYN Flood source IPaddress TCP SYN TCP source address SYN-ACKsource IP address half-open SYN flood SYNflood
  • 5. ICMP Flood ICMP UDP Flood UDP UDP packet port(DNS)
  • 6. TeardropFragmentFragment Offset Teardrop Offset Land Attack SYN SYN ACK IP Address IP AddressIP Address Hacker IP AddressIP Address SYN ACK SYN ACK SYN ACK
  • 7. 6. Smurf ICMP Echo Request broadcast address amplifier) source IP address IP address ICMP Echo Reply IP address DoS DoS
  • 8. NetworkLAN
  • 9. SPAM Email Malicious Emailcontent Attached File SPAM Email ANTI-SPAM ACT" SPAMMER SPAM e-mail
  • 10. SPAM Email MaliciousEmail content ANTI-SPAM/ANTI-Virus Internet Gateway DMZ SPAM e-mail- e-mail ANTI-SPAMSoftware PC Client e-mail HTML Character Plain Text

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