Basic HTML version of Foils prepared May 19 99

Foil 22 Port Scanners (2)

From Computer Crimes: Examples of Network Security attacks Tango Group Internal Technology Seminars -- April 23 99. by Roman Markowski
1 Scan all 65,535 TCP ports and 65,535 UDP ports
  • 80/tcp - http, 23/tcp - telnet, 53/udp - DNS, 6000/tcp X server
2 Examples: network scans
  • ping www.company.com
  • traceroute www.company.com
  • discover -snmp 20.10.213 (SCOTTY OS identification)
  • discover -icmp 20.10.213 (SCOTTY host identification)
3 Examples: port scans
  • strobe 127.0.0.1
  • tcp_scan 127.0.0.1 1-1024
  • udp_scan 127.0.0.1 1-1024
  • mscan -h target
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