import ctypes
import windows
import windows.hooks as hooks
import windows.utils as utils
from windows.generated_def.winstructs import *
from windows.utils import transform_ctypes_fields
import windows.remotectypes as rctypes
IMAGE_ORDINAL_FLAG32 = 0x80000000
IMAGE_ORDINAL_FLAG64 = 0x8000000000000000
def get_structure_transformer_for_target(target, targetbitness=None):
current_bitness = windows.current_process.bitness
if target is None:
ctypes_structure_transformer = lambda x:x
create_structure_at = lambda structcls, addr: structcls.from_address(addr)
return ctypes_structure_transformer, create_structure_at
if targetbitness is None:
targetbitness = target.bitness
if targetbitness == 32 and current_bitness == 64:
ctypes_structure_transformer = rctypes.transform_type_to_remote32bits
elif targetbitness == 64 and current_bitness == 32:
ctypes_structure_transformer = rctypes.transform_type_to_remote64bits
elif targetbitness == current_bitness:
ctypes_structure_transformer = rctypes.transform_type_to_remote
else:
raise NotImplementedError("Parsing {0} PE from {1} Process".format(targetedbitness, proc_bitness))
def create_structure_at(structcls, addr): # Il reste une closure sur 'target' ici !!
return ctypes_structure_transformer(structcls)(addr, target)
return ctypes_structure_transformer, create_structure_at
def get_pe_bitness(baseaddr, target):
# We can force bitness as the field we access are bitness-independant
pe = GetPEFile(baseaddr, target, force_bitness=32)
machine = pe.get_NT_HEADER().FileHeader.Machine
if machine == 0x14c:
return 32
elif machine == 0x8664:
return 64
else:
raise ValueError("Unknow PE target machine <0x{0:x}>".format(machine))
# def GetPEFile(baseaddr, target=None, force_bitness=None):
# """Returns a :class:`PEFile` to explore a PE loaded at `baseaddr` in process `target`.
#
# :rtype: :class:`PEFile`
#
# .. note::
#
# If target is ``None`` it refers to the curent process
# """
# proc_bitness = windows.current_process.bitness
#
# if force_bitness is None:
# targetedbitness = get_pe_bitness(baseaddr, target)
# else:
# targetedbitness = force_bitness
#
# transformers = get_structure_transformer_for_target(target, targetedbitness)
# ctypes_structure_transformer, create_structure_at = transformers
#
# if targetedbitness == 32:
# IMAGE_ORDINAL_FLAG = IMAGE_ORDINAL_FLAG32
# else:
# IMAGE_ORDINAL_FLAG = IMAGE_ORDINAL_FLAG64
#
# def get_string(addr):
# if target is None:
# return ctypes.c_char_p(addr).value
# return target.read_string(addr)
#
# class RVA(DWORD):
# @property
# def addr(self):
# return baseaddr + self.value
#
# def __repr__(self):
# return "<DWORD {0} (RVA to '{1}')>".format(self.value, hex(self.addr))
#
# class StringRVa(RVA):
# if target is None:
# @property
# def str(self):
# return get_string(self.addr).decode()
# else:
# @property
# def str(self):
# return get_string(self.addr).decode()
#
# def __repr__(self):
# return "<DWORD {0} (String RVA to '{1}')>".format(self.value, self.str)
#
# def __int__(self):
# return self.value
#
# class IMPORT_BY_NAME(ctypes.Structure):
# _fields_ = [
# ("Hint", WORD),
# ("Name", BYTE)
# ]
#
# class THUNK_DATA(ctypes.Union):
# _fields_ = [
# ("Ordinal", PVOID),
# ("AddressOfData", PVOID)
# ]
#
# class IATEntry(ctypes.Structure):
# """Represent an entry in the IAT of a module
# Can be used to get resolved value and setup hook
# """
# _fields_ = [
# ("value", PVOID)]
#
#
#
# @classmethod
# def create(cls, addr, ord, name):
# self = create_structure_at(cls, addr)
# self.addr = addr
# self.ord = ord
# self.name = name
# self.hook = None
# self.nonhookvalue = self.value
# return self
#
# def __repr__(self):
# return '<{0} "{1}" ordinal {2}>'.format(self.__class__.__name__, self.name, self.ord)
#
# def set_hook(self, callback, types=None):
# """Setup a hook on the entry and return it.
# You MUST keep a reference to the hook while the hook is enabled.
#
# :param callback: the hook
#
# .. note::
#
# see :ref:`hook_protocol`
#
# :rtype: :class:`windows.hooks.IATHook`
#
# .. warning::
#
# This works only for PEFile with the current process as target.
# """
# if target is not None:
# raise NotImplementedError("Setting hook in remote process (use python code injection)")
#
# hook = hooks.IATHook(self, callback, types)
# self.hook = hook
# hook.enable()
# return hook
#
# def remove_hook(self):
# """Remove the hook on the entry"""
# if self.hook is None:
# return False
# self.hook.disable()
# self.hook = None
# return True
#
# class PEFile(object):
# """Represent a PE loaded in a process (current or remote)"""
# #def __del__(self):
# # print("YOLODEL")
# # import pprint
# # pprint.pprint(vars(self))
#
# def __init__(self):
# self.baseaddr = baseaddr
# self.bitness = targetedbitness
#
# def get_DOS_HEADER(self):
# return create_structure_at(IMAGE_DOS_HEADER, baseaddr)
#
# def get_NT_HEADER(self):
# return self.get_DOS_HEADER().get_NT_HEADER()
#
# def get_OptionalHeader(self):
# return self.get_NT_HEADER().OptionalHeader
#
# def get_DataDirectory(self):
# # This won't work if we load a PE32 in a 64bit process
# # PE32 .NET...
# #return self.get_OptionalHeader().DataDirectory
# DataDirectory_type = IMAGE_DATA_DIRECTORY * IMAGE_NUMBEROF_DIRECTORY_ENTRIES
# SizeOfOptionalHeader = self.get_NT_HEADER().FileHeader.SizeOfOptionalHeader
# if target is None:
# opt_header_addr = ctypes.addressof(self.get_NT_HEADER().OptionalHeader)
# else:
# opt_header_addr = self.get_NT_HEADER().OptionalHeader._base_addr
# DataDirectory_addr = opt_header_addr + SizeOfOptionalHeader - ctypes.sizeof(DataDirectory_type)
# return create_structure_at(DataDirectory_type, DataDirectory_addr)
#
#
# def get_IMPORT_DESCRIPTORS(self):
# import_datadir = self.get_DataDirectory()[IMAGE_DIRECTORY_ENTRY_IMPORT]
# if import_datadir.VirtualAddress == 0:
# return []
# import_descriptor_addr = RVA(import_datadir.VirtualAddress).addr
# current_import_descriptor = create_structure_at(self.IMAGE_IMPORT_DESCRIPTOR, import_descriptor_addr)
# res = []
# while current_import_descriptor.FirstThunk:
# res.append(current_import_descriptor)
# import_descriptor_addr += ctypes.sizeof(self.IMAGE_IMPORT_DESCRIPTOR)
# current_import_descriptor = create_structure_at(self.IMAGE_IMPORT_DESCRIPTOR, import_descriptor_addr)
# return res
#
# def get_EXPORT_DIRECTORY(self):
# export_directory_rva = self.get_DataDirectory()[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress
# if export_directory_rva == 0:
# return None
# export_directory_addr = baseaddr + export_directory_rva
# return create_structure_at(self._IMAGE_EXPORT_DIRECTORY, export_directory_addr)
#
# class PESection((IMAGE_SECTION_HEADER)):
# if target is None:
# @property
# def name(self):
# return get_string(ctypes.addressof(self.Name))[:8]
# else:
# @property
# def name(self):
# return get_string(self._base_addr)[:8]
#
# @property
# def start(self):
# return baseaddr + self.VirtualAddress
#
# @property
# def size(self):
# return self.VirtualSize
#
# def __repr__(self):
# return "<PESection \"{0}\">".format(self.name)
#
# @utils.fixedpropety
# def sections(self):
# nt_header = self.get_NT_HEADER()
# nb_section = nt_header.FileHeader.NumberOfSections
# SizeOfOptionalHeader = self.get_NT_HEADER().FileHeader.SizeOfOptionalHeader
# if target is None:
# opt_header_addr = ctypes.addressof(self.get_NT_HEADER().OptionalHeader)
# else:
# opt_header_addr = self.get_NT_HEADER().OptionalHeader._base_addr
# base_section = opt_header_addr + SizeOfOptionalHeader
# sections_array = create_structure_at((self.PESection * nb_section), base_section)
# return list(sections_array)
#
# @utils.fixedpropety
# def exports(self):
# """The exports of the PE in a dict. Keys are ordinal (:class:`int`) and name (:class:`str`).
# The values are the addresses of the exports.
#
# :type: {(:class:`int` or :class:`str`) : :class:`int`}"""
# res = {}
# exp_dir = self.get_EXPORT_DIRECTORY()
# if exp_dir is None:
# return res
# raw_exports = exp_dir.get_exports()
# for id, rva_addr, rva_name in raw_exports:
# res[id] = rva_addr.addr
# if rva_name is not None:
# res[rva_name.str] = rva_addr.addr
# return res
#
# @utils.fixedpropety
# def export_name(self):
# """The Name attribute of the ``EXPORT_DIRECTORY``"""
# try:
# return self.get_EXPORT_DIRECTORY().Name.str
# except AttributeError:
# return None
#
# # TODO: get imports by parsing other modules exports if no INT
# @utils.fixedpropety
# def imports(self):
# """The imports of the PE in a dict.
# Keys are the names of DLL to import from and values are :class:`list`
# of :class:`IATEntry`
#
# :type: {:class:`str` : [:class:`IATEntry`]}"""
# res = {}
# for import_descriptor in self.get_IMPORT_DESCRIPTORS():
# INT = import_descriptor.get_INT()
# IAT = import_descriptor.get_IAT()
# if INT is not None:
# for iat_entry, (ord, name) in zip(IAT, INT):
# # str(name.decode()) -> python2 and python3 compatible for str result
# iat_entry.ord = ord
# iat_entry.name = str(name.decode()) if name else ""
# res.setdefault(import_descriptor.Name.str.lower(), []).extend(IAT)
# return res
#
# # Will be usable as `self.IMAGE_IMPORT_DESCRIPTOR`
# class IMAGE_IMPORT_DESCRIPTOR(ctypes.Structure):
# _fields_ = transform_ctypes_fields(IMAGE_IMPORT_DESCRIPTOR, {"Name": StringRVa, "OriginalFirstThunk": RVA, "FirstThunk": RVA})
#
# def get_INT(self):
# if not self.OriginalFirstThunk.value:
# return None
# int_addr = self.OriginalFirstThunk.addr
# int_entry = create_structure_at(THUNK_DATA, int_addr)
# res = []
# while int_entry.Ordinal:
# if int_entry.Ordinal & IMAGE_ORDINAL_FLAG:
# res += [(int_entry.Ordinal & 0x7fffffff, None)]
# else:
# import_by_name = create_structure_at(IMPORT_BY_NAME, baseaddr + int_entry.AddressOfData)
# name_address = baseaddr + int_entry.AddressOfData + type(import_by_name).Name.offset
# if target is None:
# name = get_string(name_address)
# else:
# name = get_string(name_address).decode()
# res.append((import_by_name.Hint, name))
# int_addr += ctypes.sizeof(type(int_entry))
# int_entry = create_structure_at(THUNK_DATA, int_addr)
# return res
#
# def get_IAT(self):
# iat_addr = self.FirstThunk.addr
# iat_entry = create_structure_at(THUNK_DATA, iat_addr)
# res = []
# while iat_entry.Ordinal:
# res.append(IATEntry.create(iat_addr, -1, "??"))
# iat_addr += ctypes.sizeof(type(iat_entry))
# iat_entry = create_structure_at(THUNK_DATA, iat_addr)
# return res
#
# # Will be usable as `self._IMAGE_EXPORT_DIRECTORY`
# class _IMAGE_EXPORT_DIRECTORY(ctypes.Structure):
# _fields_ = transform_ctypes_fields(IMAGE_EXPORT_DIRECTORY, {"Name": StringRVa, "AddressOfFunctions": RVA, "AddressOfNames": RVA, "AddressOfNameOrdinals": RVA})
#
# def get_exports(self):
# NameOrdinals = create_structure_at((WORD * self.NumberOfNames), self.AddressOfNameOrdinals.addr)
# NameOrdinals = list(NameOrdinals)
# Functions = create_structure_at((RVA * self.NumberOfFunctions), self.AddressOfFunctions.addr)
# Names = create_structure_at((StringRVa * self.NumberOfNames), self.AddressOfNames.addr)
# res = []
# for nb, func in enumerate(Functions):
# if nb in NameOrdinals:
# name = Names[NameOrdinals.index(nb)]
# else:
# name = None
# res.append((nb, func, name))
# return res
#
# current_pe = PEFile()
#
# class IMAGE_DOS_HEADER(ctypes.Structure):
# _fields_ = [
# ("e_magic", CHAR * 2),
# ("e_cblp", WORD),
# ("e_cp", WORD),
# ("e_crlc", WORD),
# ("e_cparhdr", WORD),
# ("e_minalloc", WORD),
# ("e_maxalloc", WORD),
# ("e_ss", WORD),
# ("e_sp", WORD),
# ("e_csum", WORD),
# ("e_ip", WORD),
# ("e_cs", WORD),
# ("e_lfarlc", WORD),
# ("e_ovno", WORD),
# ("e_res", WORD * 4),
# ("e_oemid", WORD),
# ("e_oeminfo", WORD),
# ("e_res2", WORD * 10),
# ("e_lfanew", DWORD),
# ]
#
# def get_NT_HEADER(self):
# if targetedbitness == 32:
# return create_structure_at(IMAGE_NT_HEADERS32, baseaddr + self.e_lfanew)
# return create_structure_at(IMAGE_NT_HEADERS64, baseaddr + self.e_lfanew)
# return current_pe
## == PEPARSE V2 ==
import collections
CtypesStructureTransformers = collections.namedtuple("CtypesStructureTransformers", ["ctypes_structure_transformer", "create_structure_at"])
[docs]def GetPEFile(baseaddr, target=None, force_bitness=None):
"""Returns a :class:`PEFile` to explore a PE loaded at `baseaddr` in process `target`.
:rtype: :class:`PEFile`
.. note::
If target is ``None`` it refers to the current process
"""
proc_bitness = windows.current_process.bitness
if force_bitness is None:
targetedbitness = get_pe_bitness(baseaddr, target)
else:
targetedbitness = force_bitness
transformers = get_structure_transformer_for_target(target, targetedbitness)
#ctypes_structure_transformer, create_structure_at = transformers
transfor_funcs = CtypesStructureTransformers(*transformers) # TODO: rename
return PEFile(target, baseaddr, targetedbitness, transfor_funcs)
class THUNK_DATA(ctypes.Union):
_fields_ = [
("Ordinal", PVOID),
("AddressOfData", PVOID)
]
class IMPORT_BY_NAME(ctypes.Structure):
_fields_ = [
("Hint", WORD),
("Name", BYTE)
]
def get_string(target, addr):
if target is None:
return ctypes.c_char_p(addr).value
return target.read_string(addr)
class PESection(IMAGE_SECTION_HEADER):
@property
def name(self):
if self.target is None:
return get_string(self.target, ctypes.addressof(self.Name))[:8]
return get_string(self.target, self._base_addr)[:8]
@property
def start(self):
return self.baseaddr + self.VirtualAddress
@property
def size(self):
return self.VirtualSize
def __repr__(self):
return "<PESection \"{0}\">".format(self.name)
@classmethod
def create(cls, pefile, addr):
self = pefile.transformers.create_structure_at(cls, addr)
self.baseaddr = pefile.baseaddr
self.target = pefile.target
return self
class IATPtr(PVOID):
@classmethod
def from_iatentry(cls, iat_entry):
self = cls.from_address(iat_entry.addr)
self.addr = iat_entry.addr
self.nonhookvalue = iat_entry.nonhookvalue
return self
[docs]class IATEntry(ctypes.Structure):
"""Represent an entry in the IAT of a module
Can be used to get resolved value and setup hook
"""
_fields_ = [
("value", PVOID)]
@classmethod
def create(cls, addr, ord, name, target, transformers):
self = transformers.create_structure_at(cls, addr)
self.addr = addr
self.ord = ord
self.name = name
self.hook = None
self.nonhookvalue = self.value
self.target = target
return self
def __repr__(self):
return '<{0} "{1}" ordinal {2}>'.format(self.__class__.__name__, self.name, self.ord)
[docs] def set_hook(self, callback, types=None):
"""Setup a hook on the entry and return it.
You MUST keep a reference to the hook while the hook is enabled.
:param callback: the hook
.. note::
see :ref:`hook_protocol`
:rtype: :class:`windows.hooks.IATHook`
.. warning::
This works only for PEFile with the current process as target.
"""
if self.target is not None:
raise NotImplementedError("Setting hook in remote process (use python code injection)")
hook = hooks.IATHook(self, callback, types)
import weakref
self.whook = weakref.ref(hook, self.on_destroy)
self.hook = hook
hook.enable()
return hook
def on_destroy(self, *args):
# We cannot know if the hook was enabled here..
print("DESTROY: {0} -> ".format(args, self.enabled))
# import pdb;pdb.set_trace()
# print(args[0]())
[docs] def remove_hook(self):
"""Remove the hook on the entry"""
if self.hook is None:
return False
self.hook.disable()
self.hook = None
return True
# def __del__(self):
# print(self.hook)
# if self.hook:
# print("LOL BYE {0}".format(self.hook))
class IMAGE_IMPORT_DESCRIPTOR(IMAGE_IMPORT_DESCRIPTOR): # TODO: use explicite name winstructs.IMAGE_IMPORT_DESCRIPTOR
def get_INT(self):
if not self.OriginalFirstThunk:
return None
int_addr = self.OriginalFirstThunk + self.baseaddr
int_entry = self.transformers.create_structure_at(THUNK_DATA, int_addr)
res = []
while int_entry.Ordinal:
if int_entry.Ordinal & self.IMAGE_ORDINAL_FLAG:
res += [(int_entry.Ordinal & 0x7fffffff, None)]
else:
import_by_name = self.transformers.create_structure_at(IMPORT_BY_NAME, self.baseaddr + int_entry.AddressOfData)
name_address = self.baseaddr + int_entry.AddressOfData + type(import_by_name).Name.offset
if self.target is None:
name = get_string(self.target, name_address)
else:
name = get_string(self.target, name_address).decode()
res.append((import_by_name.Hint, name))
int_addr += ctypes.sizeof(type(int_entry))
int_entry = self.transformers.create_structure_at(THUNK_DATA, int_addr)
return res
def get_IAT(self):
iat_addr = self.FirstThunk + self.baseaddr
iat_entry = self.transformers.create_structure_at(THUNK_DATA, iat_addr)
res = []
while iat_entry.Ordinal:
res.append(IATEntry.create(iat_addr, -1, "??", self.target, self.transformers))
iat_addr += ctypes.sizeof(type(iat_entry))
iat_entry = self.transformers.create_structure_at(THUNK_DATA, iat_addr)
return res
@classmethod
def create(cls, pefile, addr):
self = pefile.transformers.create_structure_at(cls, addr)
self.baseaddr = pefile.baseaddr
self.transformers = pefile.transformers
self.IMAGE_ORDINAL_FLAG = pefile.IMAGE_ORDINAL_FLAG
self.target = pefile.target
return self
class IMAGE_EXPORT_DIRECTORY(IMAGE_EXPORT_DIRECTORY): # TODO: use explicite name winstructs._IMAGE_EXPORT_DIRECTORY
def get_exports(self):
NameOrdinals = self.transformers.create_structure_at((WORD * self.NumberOfNames), self.AddressOfNameOrdinals + self.baseaddr)
NameOrdinals = list(NameOrdinals)
Functions = self.transformers.create_structure_at((DWORD * self.NumberOfFunctions), self.AddressOfFunctions + self.baseaddr)
Names = self.transformers.create_structure_at((DWORD * self.NumberOfNames), self.AddressOfNames + self.baseaddr)
res = []
for nb, func in enumerate(Functions):
func += self.baseaddr
if nb in NameOrdinals:
name = get_string(self.target, Names[NameOrdinals.index(nb)] + self.baseaddr)
else:
name = None
res.append((nb, func, name))
return res
@classmethod
def create(cls, pefile, addr):
self = pefile.transformers.create_structure_at(cls, addr)
self.transformers = pefile.transformers
self.target = pefile.target
self.baseaddr = pefile.baseaddr
return self
class IMAGE_DOS_HEADER(ctypes.Structure):
_fields_ = [
("e_magic", CHAR * 2),
("e_cblp", WORD),
("e_cp", WORD),
("e_crlc", WORD),
("e_cparhdr", WORD),
("e_minalloc", WORD),
("e_maxalloc", WORD),
("e_ss", WORD),
("e_sp", WORD),
("e_csum", WORD),
("e_ip", WORD),
("e_cs", WORD),
("e_lfarlc", WORD),
("e_ovno", WORD),
("e_res", WORD * 4),
("e_oemid", WORD),
("e_oeminfo", WORD),
("e_res2", WORD * 10),
("e_lfanew", DWORD),
]
[docs]class PEFile(object):
"""Represent a PE loaded in a process (current or remote)"""
def __init__(self, target, baseaddr, targetedbitness, transformers):
self.target = target
self.baseaddr = baseaddr
self.bitness = targetedbitness
self.transformers = transformers
if targetedbitness == 32:
self.IMAGE_ORDINAL_FLAG = IMAGE_ORDINAL_FLAG32
else:
self.IMAGE_ORDINAL_FLAG = IMAGE_ORDINAL_FLAG64
def get_string(self, addr):
if self.target is None:
return ctypes.c_char_p(addr).value
return self.target.read_string(addr)
def get_DOS_HEADER(self):
return self.transformers.create_structure_at(IMAGE_DOS_HEADER, self.baseaddr)
def get_NT_HEADER(self):
offset = self.get_DOS_HEADER().e_lfanew
if self.bitness == 32:
return self.transformers.create_structure_at(IMAGE_NT_HEADERS32, self.baseaddr + offset)
return self.transformers.create_structure_at(IMAGE_NT_HEADERS64, self.baseaddr + offset)
def get_OptionalHeader(self):
return self.get_NT_HEADER().OptionalHeader
def get_DataDirectory(self):
# This won't work if we load a PE32 in a 64bit process
# PE32 .NET...
# return self.get_OptionalHeader().DataDirectory
DataDirectory_type = IMAGE_DATA_DIRECTORY * IMAGE_NUMBEROF_DIRECTORY_ENTRIES
SizeOfOptionalHeader = self.get_NT_HEADER().FileHeader.SizeOfOptionalHeader
if self.target is None:
opt_header_addr = ctypes.addressof(self.get_NT_HEADER().OptionalHeader)
else:
opt_header_addr = self.get_NT_HEADER().OptionalHeader._base_addr
DataDirectory_addr = opt_header_addr + SizeOfOptionalHeader - ctypes.sizeof(DataDirectory_type)
return self.transformers.create_structure_at(DataDirectory_type, DataDirectory_addr)
def get_IMPORT_DESCRIPTORS(self):
import_datadir = self.get_DataDirectory()[IMAGE_DIRECTORY_ENTRY_IMPORT]
if import_datadir.VirtualAddress == 0:
return []
import_descriptor_addr = self.baseaddr + import_datadir.VirtualAddress
current_import_descriptor = IMAGE_IMPORT_DESCRIPTOR.create(self, import_descriptor_addr)
res = []
while current_import_descriptor.FirstThunk:
res.append(current_import_descriptor)
import_descriptor_addr += ctypes.sizeof(IMAGE_IMPORT_DESCRIPTOR)
current_import_descriptor = IMAGE_IMPORT_DESCRIPTOR.create(self, import_descriptor_addr)
return res
def get_EXPORT_DIRECTORY(self):
export_directory_rva = self.get_DataDirectory()[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress
if export_directory_rva == 0:
return None
export_directory_addr = self.baseaddr + export_directory_rva
exp_dir = IMAGE_EXPORT_DIRECTORY.create(self, export_directory_addr)
return exp_dir
@utils.fixedpropety
def sections(self):
nt_header = self.get_NT_HEADER()
nb_section = nt_header.FileHeader.NumberOfSections
SizeOfOptionalHeader = self.get_NT_HEADER().FileHeader.SizeOfOptionalHeader
if self.target is None:
opt_header_addr = ctypes.addressof(self.get_NT_HEADER().OptionalHeader)
else:
opt_header_addr = self.get_NT_HEADER().OptionalHeader._base_addr
base_section = opt_header_addr + SizeOfOptionalHeader
#pe_section_type = IMAGE_SECTION_HEADER
return [PESection.create(self, base_section + (sizeof(IMAGE_SECTION_HEADER) * i)) for i in range(nb_section)]
#sections_array = self.transformers.create_structure_at((self.PESection * nb_section), base_section)
#return list(sections_array)
@utils.fixedpropety
def exports(self):
"""The exports of the PE in a dict. Keys are ordinal (:class:`int`) and name (:class:`str`).
The values are the addresses of the exports.
:type: {(:class:`int` or :class:`str`) : :class:`int`}"""
res = {}
exp_dir = self.get_EXPORT_DIRECTORY()
if exp_dir is None:
return res
raw_exports = exp_dir.get_exports()
for id, rva_addr, rva_name in raw_exports:
res[id] = rva_addr
if rva_name is not None:
res[rva_name] = rva_addr
return res
@utils.fixedpropety
def export_name(self):
"""The Name attribute of the ``EXPORT_DIRECTORY``"""
exp_dir = self.get_EXPORT_DIRECTORY()
if exp_dir is None:
return None
if not exp_dir.Name:
return None
return get_string(self.target, self.baseaddr + exp_dir.Name)
# TODO: get imports by parsing other modules exports if no INT
@utils.fixedpropety
def imports(self):
"""The imports of the PE in a dict.
Keys are the names of DLL to import from and values are :class:`list`
of :class:`IATEntry`
:type: {:class:`str` : [:class:`IATEntry`]}"""
res = {}
for import_descriptor in self.get_IMPORT_DESCRIPTORS():
INT = import_descriptor.get_INT()
IAT = import_descriptor.get_IAT()
if INT is not None:
for iat_entry, (ord, name) in zip(IAT, INT):
# str(name.decode()) -> python2 and python3 compatible for str result
iat_entry.ord = ord
iat_entry.name = str(name.decode()) if name else ""
name = get_string(self.target, self.baseaddr + import_descriptor.Name)
res.setdefault(name.lower(), []).extend(IAT)
return res