{"id":3665,"date":"2013-07-21T11:18:14","date_gmt":"2013-07-21T02:18:14","guid":{"rendered":"http:\/\/apollo89.com\/wordpress\/?p=3665"},"modified":"2013-09-13T08:39:46","modified_gmt":"2013-09-12T23:39:46","slug":"%ed%95%b4%ec%bb%a4%ec%9d%98-%ec%96%b8%ec%96%b4-%ec%b9%98%eb%aa%85%ec%a0%81-%ed%8c%8c%ec%9d%b4%ec%8d%ac-chapter-2-%ec%b9%a8%ed%88%ac-%ed%85%8c%ec%8a%a4%ed%8a%b8","status":"publish","type":"post","link":"https:\/\/apollo89.com\/wordpress\/?p=3665","title":{"rendered":"\ud574\ucee4\uc758 \uc5b8\uc5b4, \uce58\uba85\uc801 \ud30c\uc774\uc36c – CHAPTER 2 \uce68\ud22c \ud14c\uc2a4\ud2b8 – \ud3ec\ud2b8 \uc2a4\uce90\ub108 \ub9cc\ub4e4\uae30"},"content":{"rendered":"

 <\/p>\n

Notice : \ud574\ub2f9 \uc790\ub8cc\uac00 \uc800\uc791\uad8c\ub4f1\uc5d0 \uc758\ud574\uc11c \ubb38\uc81c\uac00 \uc788\ub2e4\uba74 \ubc14\ub85c \uc0ad\uc81c\ud558\uaca0\uc2b5\ub2c8\ub2e4.
\n\uc5f0\uad6c\ubaa9\uc801\uc73c\ub85c \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uace0 \uc545\uc758\uc801\uc778 \ubaa9\uc801\uc73c\ub85c \uc774\uc6a9\ud560 \uacbd\uc6b0 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \ubc95\uc801\uc740 \ucc45\uc784\uc740 \ubaa8\ub450 \ubcf8\uc778\uc5d0\uac8c \uc788\uc2b5\ub2c8\ub2e4.
\n<\/strong><\/p>\n

\"VIOLENT_PYTHON_S\"<\/a>
\n[\uad6c\ub9e4\ud558\uae30]<\/a><\/p>\n

\ud574\ucee4\uc758 \uc5b8\uc5b4, \uce58\uba85\uc801 \ud30c\uc774\uc36c – CHAPTER 1 \uc18c\uac1c<\/a>
\n\ud574\ucee4\uc758 \uc5b8\uc5b4, \uce58\uba85\uc801 \ud30c\uc774\uc36c – CHAPTER 2 \uce68\ud22c \ud14c\uc2a4\ud2b8 – \ud3ec\ud2b8 \uc2a4\uce90\ub108 \ub9cc\ub4e4\uae30<\/a>
\n\ud574\ucee4\uc758 \uc5b8\uc5b4, \uce58\uba85\uc801 \ud30c\uc774\uc36c – CHAPTER 2 \uce68\ud22c \ud14c\uc2a4\ud2b8 – SSH \ubd07\ub137 \uad6c\ucd95\ud558\uae30<\/a>
\n\ud574\ucee4\uc758 \uc5b8\uc5b4, \uce58\uba85\uc801 \ud30c\uc774\uc36c – CHAPTER 2 \uce68\ud22c \ud14c\uc2a4\ud2b8 – FTP\uc640 \uc6f9\uc744 \uc774\uc6a9\ud55c \ub300\uaddc\ubaa8 \uacf5\uaca9<\/a>
\n\ud574\ucee4\uc758 \uc5b8\uc5b4, \uce58\uba85\uc801 \ud30c\uc774\uc36c – CHAPTER 2 \uce68\ud22c \ud14c\uc2a4\ud2b8 – \ucee8\ud53c\ucee4 \ub178\ub825\ud558\uba74 \ub41c\ub2e4<\/a><\/p>\n

2.1 \uc18c\uac1c: \ubaa8\ub9ac\uc2a4 \uc6dc – \uc624\ub298\ub0a0\uc5d0\ub3c4 \uc720\ud6a8\ud560\uae4c?
\n– \ubaa8\ub9ac\uc2a4\uc6f8\uc774 \uc0ac\uc6a9\ud55c \uacf5\uaca9\uae30\ubc95 3\uac00\uc9c0
\n1. sendmail \ud504\ub85c\uadf8\ub7a8 \ucde8\uc57d\uc810
\n2. finger \ub370\ubaac\uc758 \ucde8\uc57d\uc810
\n3. \uc0ac\uc6a9\uc790 \uc774\ub984\uacfc \ud328\uc2a4\uc6cc\ub4dc \ubaa9\ub85d\uc744 \uc774\uc6a9\ud55c \uc6d0\uaca9\uc258(RSH)\uc73c\ub85c \uacf5\uaca9<\/p>\n

2.2 \ud3ec\ud2b8 \uc2a4\uce90\ub108 \ub9cc\ub4e4\uae30
\n– \uc815\ubcf4\uc218\uc9d1\uc740 \ubaa8\ub4e0 \uc0ac\uc774\ubc84 \uacf5\uaca9\uc758 \uccab\ub2e8\uacc4
\n– \uc5f4\ub824\uc788\ub294 TCP \ud3ec\ud2b8\ub97c \ucc3e\uae30 \uc704\ud574 \uc2a4\uce94
\n– IP\uc8fc\uc18c\uc640 Tcp port \ub97c \uc54c\uc544\uc57c \uc5f0\uacb0 \uac00\ub2a5.
\n– 3way handshaking (http:\/\/charmpa.egloos.com\/1491449<\/a>)<\/p>\n

2.2.1 TCP \ud480 \ucee4\ub125\ud2b8 \uc2a4\uce94
\n– socket API import
\n* socket.gethostbyname(hostname)
\n* socket.gethostbyaddr(ip_address)
\n* socket.socket([family[, type[, proto]]])
\n* socket.create_connection(address[, timeout[, source_address]])
\n– TCP \uc2a4\uce94\uc740 TCP \ucc98\uc74c \uc5f0\uacb0 \uc2dc \uc77c\uc5b4\ub098\ub294 3-\uc6e8\uc774 \ud578\ub4dc\uc250\uc774\ud0b9\uc744 \ud0d0\uc9c0\ud558\ub294 \uae30\ubc95\uc774\ub2e4. \ub9cc\uc57d \ud578\ub4dc\uc250\uc774\ud0b9\uc774 \uc815\uc0c1\uc801\uc73c\ub85c \uc644\ub8cc\ub418\uc5c8\ub2e4\uba74, \ud574\ub2f9 TCP \ud3ec\ud2b8\ub294 \uc815\uc0c1\uc801\uc73c\ub85c \uc5f4\ub824 \uc788\ub294 \uac83\uc73c\ub85c \ud310\ub2e8\ud560 \uc218 \uc788\ub2e4. \uc11c\ube44\uc2a4 \uac70\ubd80 \uacf5\uaca9\uc744 \ub9c9\uae30 \uc704\ud574, \ud3ec\ud2b8 \uc2a4\uce90\ub108\ub294 \ud578\ub4dc\uc250\uc774\ud0b9 \uc9c1\ud6c4 \uc5f0\uacb0\uc744 \uc885\ub8cc\ud55c\ub2e4. \uc774 \ubc29\uc2dd\uc740 \uc77c\ubc18\uc801\uc778 \uc18c\ucf13 connect()\ub97c \uc774\uc6a9\ud558\uae30 \ub54c\ubb38\uc5d0, Nmap \ub4f1\uc758 \ud504\ub85c\uadf8\ub7a8\uc5d0\uc11c\ub294 \uc774 \ubc29\uc2dd\uc744 \uc5f0\uacb0 \uc2a4\uce94(connect scan)\uc73c\ub85c \ubd80\ub978\ub2e4.<\/p>\n

– TCP \ud480 \ucee4\ub125\ud2b8 \uc2a4\uce94\uc744 \uc704\ud55c 5\ub2e8\uacc4
\n1. \ud638\uc2a4\ud2b8 \uc774\ub984\uacfc \uc2a4\uce90\ub2dd \ud560 \ud3ec\ud2b8 \ubaa9\ub85d\uc744 \uc785\ub825
\n2. \ud638\uc2a4\ud2b8\uc774\ub984\uc744 IPv4 \uc778\ud130\ub137 \uc8fc\uc18c\ub85c \ubcc0\ud658
\n3. \uac01 \ud3ec\ud2b8\ub9c8\ub2e4 \uc5f0\uacb0 \uc2dc\ub3c4
\n4. \uc11c\ube44\uc2a4 \ud310\ub2e8\uc744 \uc704\ud55c \uac00\ube44\uc9c0 \ub370\uc774\ud130 \uc804\uc1a1
\n5. \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c \uc804\uc1a1\ud558\ub294 \ubc30\ub108\uac12\uc77d\uc74c<\/p>\n

2.2.2 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ubc30\ub108 \uac00\uc838\uc624\uae30
\n– \uc5f4\ub824\uc788\ub294 \ud3ec\ud2b8\ub97c \ubc1c\uacac\ud558\uba74, \ub370\uc774\ud130\ub97c \uc804\uc1a1\ud558\uace0, \uc751\ub2f5\uc744 \uae30\ub2e4\ub9bc.
\n– \uc751 \ub2f5\uc744 \uc218\uc9d1\ud558\uba74, \uacf5\uaca9\ub300\uc0c1\uacfc \ud3ec\ud2b8\uc5d0\uc11c \uc2e4\ud589\ub418\ub294 \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uc54c\uc218 \uc788\ub2e4.<\/p>\n

2.2.3 \uc4f0\ub808\ub4dc \uc0ac\uc6a9\ud558\uae30
\n– \uac01\uc18c\ucf13\uc774 \uc2a4\uce94\uc744 \ud558\ub294 \ub370 \ubcf4\ud1b5 \uc218 \ucd08\uac00 \uc18c\uc694
\n– \uc21c\ucc28\uc801\uc73c\ub85c \uc2a4\uce94\ud558\ub294 \uac83\ubcf4\ub2e4 \ub3d9\uc2dc\uc5d0 \uc2a4\uce94\ud558\ub294\uac83\uc774 \ube60\ub984
\n– \uc4f0\ub808\ub4dc \uc0ac\uc6a9 -> \ub3d9\uc2dc\uc5d0 \ud654\uba74\uc5d0 \ucd9c\ub825, \uc54c\uc544\ubcf4\uae30 \ud798\ub4e4\uace0, \uc21c\uc11c\ub3c4 \uc548\ub9de\uc74c
\n– \uc138\ub9c8\ud3ec\uc5b4\ub97c \uc0ac\uc6a9\ud574 lock\uc744 \uac78\uc5b4 \ud55c\ubc88\uc5d0 \ud558\ub098\uc758 \uc4f0\ub808\ub4dc\ub9cc \ud654\uba74\uc5d0 \ucd9c\ub825\ud560\uc218 \uc788\ub3c4\ub85d \uad6c\ud604<\/p>\n

#!\/usr\/bin\/python\r\n# -*- coding: utf-8 -*-\r\nimport optparse\r\nfrom socket import *\r\nfrom threading import *\r\n\r\nscreenLock = Semaphore(value=1)\r\n\r\ndef connScan(tgtHost, tgtPort):\r\n    try:\r\n        connSkt = socket(AF_INET, SOCK_STREAM)\r\n        connSkt.connect((tgtHost, tgtPort))\r\n        connSkt.send('ViolentPython\\r\\n')\r\n        results = connSkt.recv(100)\r\n        screenLock.acquire()\r\n        print '[+] %d\/tcp open' % tgtPort\r\n        print '[+] ' + str(results)\r\n    except:\r\n        screenLock.acquire()\r\n        print '[-] %d\/tcp closed' % tgtPort\r\n    finally:\r\n\tscreenLock.release()\r\n\tconnSkt.close()\t\r\n\r\ndef portScan(tgtHost, tgtPorts):\r\n    try:\r\n        tgtIP = gethostbyname(tgtHost)\r\n    except:\r\n        print \"[-] Cannot resolve '%s': Unknown host\" %tgtHost\r\n        return\r\n\r\n    try:\r\n        tgtName = gethostbyaddr(tgtIP)\r\n        print '\\n[+] Scan Results for: ' + tgtName[0]\r\n    except:\r\n        print '\\n[+] Scan Results for: ' + tgtIP\r\n\r\n    setdefaulttimeout(1)\r\n    for tgtPort in tgtPorts:\r\n        t = Thread(target=connScan,args=(tgtHost,int(tgtPort)))\r\n        t.start()\r\n\r\ndef main():\r\n    parser = optparse.OptionParser('usage %prog -H <target host> -p <target port>')\r\n    parser.add_option('-H', dest='tgtHost', type='string', help='specify target host')\r\n    parser.add_option('-p', dest='tgtPort', type='string', help='specify target port[s] separated by comma')\r\n\r\n    (options, args) = parser.parse_args()\r\n\r\n    tgtHost = options.tgtHost\r\n    tgtPorts = str(options.tgtPort).split(',')\r\n\r\n    if (tgtHost == None) | (tgtPorts[0] == None):\r\n\tprint parser.usage\r\n        exit(0)\r\n\r\n    portScan(tgtHost, tgtPorts)\r\n\r\nif __name__ == '__main__':\r\n    main()<\/pre>\n
\uc2e4\ud589\uacb0\uacfc :<\/p>\n
C:\\Python27>python 1-portScan.py -H 192.168.134.129 -p 8888\r\n\r\n[+] Scan Results for: home\r\n[+] 8888\/tcp open\r\n[+] <HTML><HEAD><TITLE>Bad request<\/TITLE><\/HEAD>\r\n<BODY><H1>Bad request<\/H1>\r\nYour browser sent a query t<\/pre>\n
2.2.4 Nmap \ud3ec\ud2b8 \uc2a4\uce90\ub108 \ud1b5\ud569\ud558\uae30
\n– Nmap\uc740 ACK, RST, FIN, SYN-ACK \ub4f1 \ub2e4\uc591\ud55c \uae30\ub2a5 \uc9c0\uc6d0
\n– Nmap\uc740 \uacb0\uacfc\ub97c xml \ud615\ud0dc\ub85c \uc800\uc7a5
\n– XML \uad6c\ubb38\ubd84\uc11d \ub77c\uc774\ube0c\ub7ec\ub9ac\ub85c \ud30c\uc774\uc36c\uc5d0\uc11c \uac12\uc744 \uc77d\uc5b4\uc634(python-nmap \uc124\uce58)
\n– \ub2e4\ub978 \uc885\ub958\uc758 \ud3ec\ud2b8 \uc2a4\uce94
\n* TCP SYN SCAN : \ud558\ud504\uc624\ud508 \uc2a4\uce94, SYN \ud328\ud0b7 \ubcf4\ub0b4\uace0, \ub9c8\uc9c0\ub9c9 ACK\ub97c \uc548\ubcf4\ub0c4, RST\ub97c \ubc1b\uc73c\uba74 \ub2eb\ud600\uc788\uc74c
\n* TCP NULL SCAN : TCP \ud50c\ub798\uadf8 \ud5e4\ub354\ub97c 0\uc73c\ub85c \uc124\uc815, RST\ub97c \ubc1b\uc73c\uba74 \ub2eb\ud600\uc788\uc74c
\n* TCP FIN SCAN : FIN\uc744 \uc804\uc1a1(TCP \uc5f0\uacb0 \uc885\ub8cc), RST\ub97c \ubc1b\uc73c\uba74 \ub2eb\ud600\uc788\uc74c
\n* TCP XMAS SCAN : PSH, FIN, URG TCP \ud50c\ub798\uadf8\ub97c \ud65c\uc131\ud654, RST\ub97c \ubc1b\uc73c\uba74 \ub2eb\ud600\uc788\uc74c<\/p>\n
#!\/usr\/bin\/python\r\n# -*- coding: utf-8 -*-\r\nimport nmap\r\nimport optparse\r\n\r\ndef nmapScan(tgtHost,tgtPort):\r\n    nmScan = nmap.PortScanner()\r\n    nmScan.scan(tgtHost,tgtPort)\r\n    state=nmScan[tgtHost]['tcp'][int(tgtPort)]['state']\r\n    print \"[*] \" + tgtHost + \" tcp\/\"+tgtPort +\" \"+state\r\n\r\ndef main():\r\n    parser = optparse.OptionParser('usage %prog -H <target host> -p <target port>')\r\n    parser.add_option('-H', dest='tgtHost', type='string', help='specify target host')\r\n    parser.add_option('-p', dest='tgtPort', type='string', help='specify target port[s] separated by comma')\r\n\r\n    (options, args) = parser.parse_args()\r\n\r\n    tgtHost = options.tgtHost\r\n    tgtPorts = str(options.tgtPort).split(',')\r\n\r\n    if (tgtHost == None) | (tgtPorts[0] == None):\r\n        print parser.usage\r\n        exit(0)\r\n    for tgtPort in tgtPorts:\r\n        nmapScan(tgtHost, tgtPort)\r\n\r\nif __name__ == '__main__':\r\n    main()<\/pre>\n
\uc2e4\ud589\uacb0\uacfc :<\/p>\n
C:\\Python27>python 2-nmapScan.py -H 192.168.134.129 -p 8888\r\n[*] 192.168.134.129 tcp\/8888 open<\/pre>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
  Notice : \ud574\ub2f9 \uc790\ub8cc\uac00 \uc800\uc791\uad8c\ub4f1\uc5d0 \uc758\ud574\uc11c \ubb38\uc81c\uac00 \uc788\ub2e4\uba74 \ubc14\ub85c \uc0ad\uc81c\ud558\uaca0\uc2b5\ub2c8\ub2e4. \uc5f0\uad6c\ubaa9\uc801\uc73c\ub85c \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uace0 \uc545\uc758\uc801\uc778 \ubaa9\uc801\uc73c\ub85c \uc774\uc6a9\ud560 \uacbd\uc6b0 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \ubc95\uc801\uc740 \ucc45\uc784\uc740 \ubaa8\ub450 \ubcf8\uc778\uc5d0\uac8c \uc788\uc2b5\ub2c8\ub2e4. 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