(E-mail)

(Firewall)(IDS)(Authentication)

?

DHCP

(IP Filtering)(Proxy Server) DNS

Windows XP SP2Windows XP SP2 / / Windows

()

WindowsWindows

YESFoxyeDonkeyPORT

Malicious Code

.COM.EXE

LANInternet E-mail

()

(Listen Port)

25537980110 (Key Logger)

Download

Window Update // OR ()

(Windows XP) [F8]

or Ctrl + Alt + Del [] (Registry) format

/ / cmd / netstat an (Enter)

/ / cmd / net start (Enter)

/ /Msconfig kavo

, 11111234aaaaabcdef

iloveyousuperman nopqrs987654...

l == 1 or ! or |, O == 0, S == 5, A == 4, q == 9 , lhpelomf , , : abcd + 1234 = a1b2c3d4 , : with -> tqil ,

.PC-cillin NOD 32McAfee

? phishing ID

?(IP)

PORT 0~65535(1024)--

PORT ftp-data 20/sctp FTP ftp 21/tcp File Transfer [Control] ssh 22/tcp SSH Remote Login Protocolsmtp 25/tcp Simple Mail Transfer domain 53/tcp Domain Name Serverhttp 80/udp World Wide Web HTTPwww 80/tcp World Wide Web HTTP