Class: Thm::Localmachine

Inherits:
DataServices show all
Defined in:
lib/thm/localmachine.rb

Overview

Process data from / to local files.

Instance Attribute Summary

Attributes inherited from DataServices

#datastore, #dbhost, #dbname, #dbpass, #dbuser, #mqhost, #mqpass, #mquser, #mqvhost, #queueprefix, #tblname_ippacket, #tblname_tcppacket, #tblname_udppacket

Instance Method Summary collapse

Methods inherited from DataServices

#dbconnect, #initialize, #mqclose, #mqconnect, #query

Constructor Details

This class inherits a constructor from Thm::DataServices

Instance Method Details

#from_pcap_db(pcapfile) ⇒ Object

From Pcap file to Datastore



37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
 
# File 'lib/thm/localmachine.rb', line 37

def from_pcap_db(pcapfile)
  t, n, s, v, x, z = 0, 0, 0, 0, 0, 0
  ipcount, tcpcount, udpcount = 0, 0, 0
  inp = Pcap::Capture.open_offline(pcapfile)
  inp.each_packet do |pkt|
    guid = Tools::guid # IP / TCP / UDP relationship
    dtime = Time.now
    # IP Packet
    if pkt.ip?
        ip_packet = "INSERT INTO #{@tblname_ippacket} "
        ip_packet << "(guid, recv_date, ip_df, ip_dst, ip_hlen, ip_id, ip_len, ip_mf, ip_off, ip_proto, ip_src, ip_sum, ip_tos, ip_ttl, ip_ver) "
        ip_packet << "VALUES ("
        ip_packet << "'#{guid}',"
        ip_packet << "'#{dtime}',"
        if pkt.ip_df? == true 
          ip_packet << "'Y',"
        else
          ip_packet << "'N',"
        end
        ip_packet << "'#{pkt.ip_dst}',"
        ip_packet << "'#{pkt.ip_hlen}',"
        ip_packet << "'#{pkt.ip_id}',"
        ip_packet << "'#{pkt.ip_len}',"
        if pkt.ip_mf? == true
          ip_packet << "'Y',"
        else
          ip_packet << "'N',"
        end
        ip_packet << "'#{pkt.ip_off}',"
        ip_packet << "'#{pkt.ip_proto}',"
        ip_packet << "'#{pkt.ip_src}',"
        ip_packet << "'#{pkt.ip_sum}',"
        ip_packet << "'#{pkt.ip_tos}',"
        ip_packet << "'#{pkt.ip_ttl}',"
        ip_packet << "'#{pkt.ip_ver}');"
        if t == 50
          puts "\e[1;32m\ MSGID:\e[0m\ [#{n}] \e[1;32m\Generated SQL:\e[0m\ #{ip_packet}"
          t = 0
        end
        t = t + 1 unless t == 50
        res = @conn.query("#{ip_packet}")
        @conn.save
        n = n + 1
    end
    # TCP Packet
    if pkt.tcp?
      tcp_packet = "INSERT INTO #{@tblname_tcppacket} "
      tcp_packet << "(guid, recv_date, tcp_data_len, tcp_dport, tcp_ack, tcp_fin, tcp_syn, tcp_rst, tcp_psh, tcp_urg, tcp_off, tcp_hlen, tcp_seq, tcp_sum, tcp_sport, tcp_urp, "
      tcp_packet << "tcp_win) "
      tcp_packet << "VALUES ("
      tcp_packet << "'#{guid}',"
      tcp_packet << "'#{dtime}', "
      tcp_packet << "#{pkt.tcp_data_len},"
      tcp_packet << "#{pkt.tcp_dport},"
      if pkt.tcp_ack? == true 
        tcp_packet << "'Y',"
      else
        tcp_packet << "'N',"
      end
      if pkt.tcp_fin? == true
        tcp_packet << "'Y',"
      else
        tcp_packet << "'N',"
      end
      if pkt.tcp_syn? == true 
        tcp_packet << "'Y',"
      else
        tcp_packet << "'N',"
      end
      if pkt.tcp_rst? == true 
        tcp_packet << "'Y',"
      else
        tcp_packet << "'N',"
      end
      if pkt.tcp_psh? == true 
        tcp_packet << "'Y',"
      else
        tcp_packet << "'N',"
      end
      if pkt.tcp_urg? == true
        tcp_packet << "'Y',"
      else
        tcp_packet << "'N',"
      end
      tcp_packet << "#{pkt.tcp_off}, #{pkt.tcp_hlen}, #{pkt.tcp_seq}, #{pkt.tcp_sum}, #{pkt.tcp_sport}, #{pkt.tcp_urp}, #{pkt.tcp_win});"
      if s == 50
        puts "\e[1;32m\ MSGID:\e[0m\ [#{v}] \e[1;32m\Generated SQL:\e[0m\ #{tcp_packet}"
        s = 0
      end
      s = s + 1 unless s == 50
      res = @conn.query("#{tcp_packet}")
      @conn.save
      v = v + 1        
    end
    # UDP Packet
    if pkt.udp?
      udp_packet = "INSERT INTO #{@tblname_udppacket} "
      udp_packet << "(guid,"
      udp_packet << "recv_date,"
      udp_packet << "udp_dport,"
      udp_packet << "udp_len,"
      udp_packet << "udp_sum,"
      udp_packet << "udp_sport) "
      udp_packet << "VALUES ("
      udp_packet << "'#{guid}',"
      udp_packet << "'#{dtime}',"
      udp_packet << "'#{pkt.udp_dport}',"
      udp_packet << "'#{pkt.udp_len}',"
      udp_packet << "'#{pkt.udp_sum}',"
      udp_packet << "'#{pkt.udp_sport}');"
      if x == 50
        puts "\e[1;32m\ MSGID:\e[0m\ [#{z}] \e[1;32m\Generated SQL:\e[0m\ #{udp_packet}"
        x = 0
      end
      x = x + 1 unless x == 50
      res = @conn.query("#{udp_packet}")
      @conn.save
      z = z + 1        
    end
    ipcount = n
    tcpcount = v
    udpcount = z
  end
  @conn.release
  @conn.commit
  totals = "\e[1;31m=======================================================================\e[0m\ \n"
  totals << "\e[1;31mPackets Total | IP: #{ipcount} | TCP: #{tcpcount} | UDP: #{udpcount}\e[0m\ \n"
  totals << "\e[1;31m======================================================================\e[0m\ \n"
  puts totals
end

#from_pcap_to_disk(interface, dumpfile) ⇒ Object

We have to use a different Gem here called pcaprub that supports live interface / dumping mode.



10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
 
# File 'lib/thm/localmachine.rb', line 10

def from_pcap_to_disk(interface, dumpfile)
  puts "Capturing Live data... "
  begin
    capture = PCAPRUB::Pcap.open_live("#{interface}", 65535, true, 0)
    puts "Writing to file ..."
    puts "Press CTRL+C to exit ..."
    dumper = capture.dump_open("#{dumpfile}")
    capture_packets = 100
    capture.each {|pkt|
      capture.dump(pkt.length, pkt.length, pkt)
    }
    capture.dump_close
  rescue
    puts "Make sure the interface name is correct and you have enough disk space"
    exit
  end      
end

#from_pcap_to_interface_injection(interface, inputdumpfile) ⇒ Object

We can inject packets into an interface DANGEROUS !!!



30
31
32
33
 
# File 'lib/thm/localmachine.rb', line 30

def from_pcap_to_interface_injection(interface, inputdumpfile)
  # NOTES
  # Src / Dst rewriting ip_src, ip_dst
end