Class: Rex::PeScan::Scanner::Generic

Inherits:
Object
  • Object
show all
Defined in:
lib/rex/pescan/scanner.rb

Direct Known Subclasses

JmpRegScanner, RegexScanner

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(pe) ⇒ Generic

Returns a new instance of Generic.



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# File 'lib/rex/pescan/scanner.rb', line 11

def initialize(pe)
	self.pe = pe
end

Instance Attribute Details

#pe ⇒ Object

Returns the value of attribute pe.



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# File 'lib/rex/pescan/scanner.rb', line 9

def pe
  @pe
end

#regex ⇒ Object

Returns the value of attribute regex.



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# File 'lib/rex/pescan/scanner.rb', line 9

def regex
  @regex
end

Instance Method Details

#config(param) ⇒ Object 



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# File 'lib/rex/pescan/scanner.rb', line 15

def config(param)
end

#scan(param) ⇒ Object 



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# File 'lib/rex/pescan/scanner.rb', line 18

def scan(param)
	config(param)

	$stdout.puts "[#{param['file']}]"
	pe.all_sections.each do |section|
		hits = scan_section(section, param)
		hits.each do |hit|
			vma  = pe.rva_to_vma(hit[0])

			next if (param['filteraddr'] and [vma].pack("V").reverse !~ /#{param['filteraddr']}/)

			msg  = hit[1].is_a?(Array) ? hit[1].join(" ") : hit[1]
			$stdout.puts pe.ptr_s(vma) + " " + msg
			if(param['disasm'])
				#puts [msg].pack('H*').inspect
				insns = []
		
				msg.gsub!("; ", "\n")
				if msg.include?("retn")
					msg.gsub!("retn", "ret")
				end
				#puts msg
				begin
					d2 = Metasm::Shellcode.assemble(Metasm::Ia32.new, msg).disassemble
				rescue Metasm::ParseError
					d2 = Metasm::Shellcode.disassemble(Metasm::Ia32.new, [msg].pack('H*'))
				end
				addr = 0
				while ((di = d2.disassemble_instruction(addr)))
					insns << di.instruction
					disasm = "0x%08x\t" % (vma + addr)
					disasm << di.instruction.to_s
					$stdout.puts disasm
					addr = di.next_addr
				end
#						::Rex::Assembly::Nasm.disassemble([msg].pack("H*")).split("\n").each do |line|
#							$stdout.puts "\tnasm: #{line.strip}"
				#end
			end
		end
	end
end

#scan_section(section, param = {}) ⇒ Object 



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# File 'lib/rex/pescan/scanner.rb', line 61

def scan_section(section, param={})
	[]
end