Files
metasploit-gs/lib/msf/core/reflective_dll_loader.rb
T
2013-12-06 09:18:08 +10:00

44 lines
1005 B
Ruby

# -*- coding: binary -*-
###
#
# This mixin contains functionality which loads a Reflective
# DLL from disk into memory and finds the offset of the
# reflective loader's entry point.
#
###
module Msf::ReflectiveDLLLoader
#
# Load a reflectively-injectable DLL from disk and find the offset
# to the ReflectiveLoader function inside the DLL.
#
# @param dll_path Path to the DLL to load.
#
# @return [Array] Tuple of DLL contents and offset to the
# +ReflectiveLoader+ function within the DLL.
#
def load_rdi_dll(dll_path)
dll = ''
offset = nil
::File.open(dll_path, 'rb') { |f| dll = f.read }
pe = Rex::PeParsey::Pe.new(Rex::ImageSource::Memory.new(dll))
pe.exports.entries.each do |e|
if e.name =~ /^\S*ReflectiveLoader\S*/
offset = pe.rva_to_file_offset(e.rva)
break
end
end
unless offset
raise "Cannot find the ReflectiveLoader entry point in #{dll_path}"
end
return dll, offset
end
end