128 lines
3.1 KiB
Ruby
128 lines
3.1 KiB
Ruby
#!/usr/bin/env ruby
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# $Id$
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msfbase = File.symlink?(__FILE__) ? File.readlink(__FILE__) : __FILE__
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$:.unshift(File.join(File.dirname(msfbase), 'lib'))
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require 'rex/elfparsey'
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require 'rex/elfscan'
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require 'rex/arch/x86'
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require 'optparse'
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def opt2i(o)
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o.index("0x")==0 ? o.hex : o.to_i
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end
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opt = OptionParser.new
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opt.banner = "Usage: #{$PROGRAM_NAME} [mode] <options> [targets]"
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opt.separator('')
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opt.separator('Modes:')
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worker = nil
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param = {}
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opt.on('-j', '--jump [regA,regB,regC]', 'Search for jump equivalent instructions') do |t|
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# take csv of register names (like eax,ebx) and convert
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# them to an array of register numbers
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regnums = t.split(',').collect { |o| Rex::Arch::X86.reg_number(o) }
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worker = Rex::ElfScan::Scanner::JmpRegScanner
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param['args'] = regnums
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end
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opt.on('-p', '--poppopret', 'Search for pop+pop+ret combinations') do |t|
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worker = Rex::ElfScan::Scanner::PopPopRetScanner
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param['args'] = t
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end
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opt.on('-r', '--regex [regex]', 'Search for regex match') do |t|
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worker = Rex::ElfScan::Scanner::RegexScanner
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param['args'] = t
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end
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#opt.on('-a', '--analyze-address [address]', 'Display the code at the specified address') do |t|
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# worker = Rex::ElfScan::Search::DumpRVA
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# param['args'] = opt2i(t)
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#end
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#opt.on('-b', '--analyze-offset [offset]', 'Display the code at the specified offset') do |t|
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# worker = Rex::ElfScan::Search::DumpOffset
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# param['args'] = opt2i(t)
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#end
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#opt.on('-f', '--fingerprint', 'Attempt to identify the packer/compiler') do |t|
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# worker = Rex::ElfScan::Analyze::Fingerprint
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# param['database'] = File.join(File.dirname(__FILE__), 'data', 'msfpescan', 'identify.txt')
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#end
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#opt.on('-i', '--info', 'Display detailed information about the image') do |t|
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# worker = Rex::ElfScan::Analyze::Information
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#end
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#opt.on('-R', '--ripper [directory]', 'Rip all module resources to disk ') do |t|
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# worker = Rex::ElfScan::Analyze::Ripper
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# param['dir'] = t
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#end
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#opt.on('--context-map [directory]', 'Generate context-map files') do |t|
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# worker = Rex::ElfScan::Analyze::ContextMapDumper
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# param['dir'] = t
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#end
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opt.separator('')
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opt.separator('Options:')
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#opt.on('-M', '--memdump', 'The targets are memdump.exe directories') do |t|
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# pe_klass = Rex::ElfParsey::ElfMemDump
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#end
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#opt.on('-A', '--after [bytes]', 'Number of bytes to show after match (-a/-b)') do |t|
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# param['after'] = opt2i(t)
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#end
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#opt.on('-B', '--before [bytes]', 'Number of bytes to show before match (-a/-b)') do |t|
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# param['before'] = opt2i(t)
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#end
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opt.on('-I', '--image-base [address]', 'Specify an alternate ImageBase') do |t|
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param['imagebase'] = opt2i(t)
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end
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opt.on_tail("-h", "--help", "Show this message") do
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puts opt
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exit
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end
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opt.parse!
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if (! worker)
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puts opt
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exit(0)
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end
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ARGV.each do |file|
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param['file'] = file
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begin
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elf = Rex::ElfParsey::Elf.new_from_file(file, true)
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rescue Rex::ElfParsey::ElfHeaderError
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next if $!.message == 'Invalid magic number'
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raise $!
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rescue Errno::ENOENT
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$stderr.puts("File does not exist: #{file}")
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next
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end
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if (param['imagebase'])
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elf.base_addr = param['imagebase'];
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end
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o = worker.new(elf)
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o.scan(param)
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elf.close
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end
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