Sha256: 89757bc704c9024c65ca3e764e8684041894816a2cf455cd1c80e485db80a0a0

Contents?: true

Size: 1.42 KB

Versions: 9

Compression:

Stored size: 1.42 KB

Contents

# -*- coding: binary -*-
module Rex
module PeScan
module Search

  require "rex/assembly/nasm"

  class DumpRVA
    attr_accessor :pe

    def initialize(pe)
      self.pe = pe
    end

    def config(param)
      @address = pe.vma_to_rva(param['args'])
    end

    def scan(param)
      config(param)

      $stdout.puts "[#{param['file']}]"

      # Adjust based on -A and -B flags
      pre = param['before'] || 0
      suf = param['after']  || 16

      @address -= pre
      @address = 0 if (@address < 0 || ! @address)

      begin
        buf = pe.read_rva(@address, suf)
      rescue ::Rex::PeParsey::WtfError
        return
      end

      $stdout.puts pe.ptr_s(pe.rva_to_vma(@address)) + " " + buf.unpack("H*")[0]
      if(param['disasm'])
        insns = []
        buf.gsub!("; ", "\n")
        if buf.include?("retn")
          buf.gsub!("retn", "ret")
        end
        d2 = Metasm::Shellcode.disassemble(Metasm::Ia32.new, buf)
        addr = 0
        while ((di = d2.disassemble_instruction(addr)))
          insns << di.instruction
          disasm = "0x%08x\t" % (pe.rva_to_vma(@address) + addr)
          disasm << di.instruction.to_s
          $stdout.puts disasm
          addr = di.next_addr
        end
      end

    end
  end

  class DumpOffset < DumpRVA
    def config(param)
      begin
        @address = pe.file_offset_to_rva(param['args'])
      rescue Rex::PeParsey::BoundsError
      end
    end
  end
end
end
end

Version data entries

9 entries across 9 versions & 3 rubygems

Version Path
rex-2.0.7 lib/rex/pescan/search.rb
rex-2.0.5 lib/rex/pescan/search.rb
rex-2.0.4 lib/rex/pescan/search.rb
dstruct-0.0.1 lib/rex/pescan/search.rb
rex-2.0.3 lib/rex/pescan/search.rb
librex-0.0.999 lib/rex/pescan/search.rb
rex-2.0.2 lib/rex/pescan/search.rb
librex-0.0.71 lib/rex/pescan/search.rb
librex-0.0.70 lib/rex/pescan/search.rb