def iterate(self):
'''[(hint, importentry_name, importentry_offset, importentry_value),...]'''
Header = headers.locateHeader(self)
int, iat = self['INT'], self['IAT']
cache, sections = {}, Header['Sections']
for entry, address in itertools.izip(int.d.li[:-1], iat.d.li[:-1]):
if entry.OrdinalQ():
ordinal = entry['Ordinal']
hint = ordinal['Ordinal Number'] & 0xffff
yield hint, "Ordinal{:d}".format(
hint), address.getoffset(), address.int()
continue
name = entry['Name']
va = name['Name']
section = sections.getsectionbyaddress(va)
sectionofs = section.getoffset()
if sectionofs in cache:
sectionva, data = cache[sectionofs]
else:
sectionva, data = cache.setdefault(
sectionofs, (section['VirtualAddress'].int(),
array.array('B',
section.data().li.serialize())))
hintofs = va - sectionva
hint = data[hintofs] | data[hintofs + 1] * 0x100
yield hint, utils.strdup(
data[hintofs +
2:].tostring()), address.getoffset(), address.int()
return
def iterate(self):
'''[(hint,importname,importtableaddress),...]'''
address = self['IAT'].num()
header = self.getparent(Header)
section = header['Sections'].getsectionbyaddress(address)
data = array.array('c',section.data().l.serialize())
sectionva = section['VirtualAddress'].num()
nametable = self['INT'].num()-sectionva
while nametable < len(data):
# get name
name = reduce(lambda total,x: ord(x) + total*0x100, reversed(data[nametable:nametable+4]), 0)
nametable += 4
# if end of names
if name == 0:
return
# ordinal
if name & 0x80000000:
hint = name & 0xffff
yield (hint, 'Ordinal%d'% hint, address)
address += 4
continue
# string
p = (name & 0x7fffffff) - sectionva
hint = reduce(lambda total,x: ord(x) + total*0x100, reversed(data[p:p+2]), 0)
yield (hint, utils.strdup(data[p+2:].tostring()), address)
address += 4
raise ValueError("Terminated reading imports due to being out of input at %x"% address)
def GetNames(self):
"""Returns a list of all the export names"""
Header = headers.locateHeader(self)
cache, sections = {}, Header['Sections']
res = []
for va in self['AddressOfNames'].d.l:
section = sections.getsectionbyaddress(va.int())
sectionva, data = cache[section.getoffset()] if section.getoffset() in cache else cache.setdefault(section.getoffset(), (section['VirtualAddress'].int(), array.array('B', section.data().l.serialize())))
nameofs = va.int() - sectionva
res.append(utils.strdup(data[nameofs:].tostring()))
return res
def GetNames(self):
"""Returns a list of all the export names"""
Header = LocateHeader(self)
cache, sections = {}, Header['Sections']
res = []
for va in self['AddressOfNames'].d.l:
section = sections.getsectionbyaddress(va.int())
sectionva, data = cache[section.getoffset()] if section.getoffset() in cache else cache.setdefault(section.getoffset(), (section['VirtualAddress'].int(), array.array('B', section.data().l.serialize())))
nameofs = va.int() - sectionva
res.append(utils.strdup(data[nameofs:].tostring()))
return res
def getNames(self):
"""Returns a list of all the export names"""
Header = headers.locateHeader(self)
section = Header['Sections'].getsectionbyaddress(self['AddressOfNames'].int())
sectionva = section['VirtualAddress'].int()
offsets = [ (x.int()-sectionva) for x in self['AddressOfNames'].d.load() ]
data = section.data().load().serialize()
names = []
for x in offsets:
names.append(utils.strdup(data[x:]))
return names
def getExportAddressTable(self):
"""Returns (export address table offset,[virtualaddress of each export]) from the export address table"""
Header = headers.locateHeader(self)
exportdirectory = self.parent.parent
address = self['AddressOfFunctions'].int()
section = Header['Sections'].getsectionbyaddress(address)
sectionva = section['VirtualAddress'].int()
offset = address - sectionva
data = section.data().load().serialize()
block = data[offset: offset + 4*self['NumberOfFunctions'].int()]
addresses = ( struct.unpack_from('L', block, offset)[0] for offset in xrange(0, len(block), 4) )
result = []
for i,va in enumerate(addresses):
result.append( utils.strdup(data[va-sectionva:]) if exportdirectory.contains(va) else va )
return address,result
def str(self):
s = builtins.unicode(self.value, 'utf-16-be').encode('utf-8')
return utils.strdup(s)[:len(self)]
def iterate(self):
"""For each export, yields (rva offset, hint, name, ordinalname, entrypoint, forwardedrva)"""
cls = self.__class__
ExportDirectory = self.getparent(headers.IMAGE_DATA_DIRECTORY)
Header, Base = headers.locateHeader(self), self['Base'].int()
# our section data cache
cache, sections = {}, Header['Sections']
# grab everything that's important
aof, aon, aono = self['AddressOfFunctions'], self['AddressOfNames'], self['AddressOfNameOrdinals']
## export address table
if aof.int() > 0:
# cache the section the eat is contained in since we need it anyways
section = sections.getsectionbyaddress(aof.int())
cache.setdefault(section.getoffset(), (section['VirtualAddress'].int(), array.array('B', section.data().l.serialize())))
# convert the aof into an array that's wikiwiki
data = aof.d.l.cast(dyn.array(dword, len(aof.d)))
eat = array.array('L', data.l.serialize())
# check that the aof is within the bounds of the section, warn the user despite supporting it anyways
if any(not section.containsaddress(ea) for ea in (aof.int(), aof.int() + 4*self['NumberOfFunctions'].int())):
logging.warn("{:s} : Export Address Table goes outside bounds of designated section. ({:#x} <= {:#x}{:+#x} < {:#x})".format('.'.join((cls.__module__, cls.__name__)), section['VirtualAddress'].int(), aof.int(), aof.int() + 4*self['NumberOfFunctions'].int(), section['VirtualAddress'].int() + section['VirtualSize'].int()))
else:
logging.warn("{:s} : No export addresses found in IMAGE_EXPORT_DIRECTORY. ({:s})".format('.'.join((cls.__module__, cls.__name__)), aof.summary()))
eat = array.array('L', [])
## name ordinal table
if aono.int() > 0:
# cache the section the aono is contained in since we need it anyways
section = sections.getsectionbyaddress(aono.int())
cache.setdefault(section.getoffset(), (section['VirtualAddress'].int(), array.array('B', section.data().l.serialize())))
# convert the aono into an array that's also quick
data = aono.d.l.cast(dyn.array(word, len(aono.d)))
no = array.array('H', data.l.serialize())
# check that the aono is within the bounds of the section, warn the user despite supporting it anyways
if any(not section.containsaddress(ea) for ea in (aono.int(), aono.int() + 2*self['NumberOfNames'].int())):
logging.warn("{:s} : Export Name Ordinal Table goes outside bounds of designated section. ({:#x} <= {:#x}{:+#x} < {:#x})".format('.'.join((cls.__module__, cls.__name__)), section['VirtualAddress'].int(), aono.int(), aono.int() + 2*self['NumberOfNames'].int(), section['VirtualAddress'].int() + section['VirtualSize'].int()))
else:
logging.warn("{:s} : No Export Name Ordinal Table in IMAGE_EXPORT_DIRECTORY. ({:s})".format('.'.join((cls.__module__, cls.__name__)), aono.summary()))
no = array.array('H', [])
# check the name table
if aon.int() == 0:
logging.warn("{:s} : No Export Name Table in IMAGE_EXPORT_DIRECTORY. ({:s})".format('.'.join((cls.__module__, cls.__name__)), aon.summary()))
nt = []
else:
nt = aon.d.l
# now we can start returning things to the user
va = headers.calculateRelativeOffset(self, aof.int())
for nameva, ordinal in map(None, nt, no):
# grab the name if we can
if nameva is None:
name = None
else:
section = sections.getsectionbyaddress(nameva.int())
sectionva, data = cache[section.getoffset()] if section.getoffset() in cache else cache.setdefault(section.getoffset(), (section['VirtualAddress'].int(), array.array('B', section.data().l.serialize())))
nameofs = nameva.int() - sectionva
name = utils.strdup(data[nameofs:].tostring())
# grab the ordinal if we can
if ordinal is None:
forwarded, value = None, None
elif 0 <= ordinal <= len(eat):
# this is inside the export directory, so it's a forwardedrva
if ExportDirectory.containsaddress(eat[ordinal]):
section = sections.getsectionbyaddress(eat[ordinal])
sectionva, data = cache[section.getoffset()] if section.getoffset() in cache else cache.setdefault(section.getoffset(), (section['VirtualAddress'].int(), array.array('B', section.data().l.serialize())))
forwarded, value = utils.strdup(data[eat[ordinal] - sectionva:].tostring()), None
# otherwise, it's a valid address
else:
forwarded, value = None, eat[ordinal]
# this ordinal is outside the export address table, although
# we can read from the file to deal with these sort of fuxed
# things... this is currently unsupported by pecoff
else:
logging.warning("{:s} : Error resolving export address for {:s} : !({:d} <= {:d} < {:d})".format('.'.join((cls.__module__, cls.__name__)), name, 0, ordinal, len(eat)))
forwarded, value = None, None
ordinalstring = None if ordinal is None else "Ordinal{:d}".format(ordinal + Base)
yield va, ordinal, name, ordinalstring, value, forwarded
va += 4
return
def iterate(self):
"""For each export, yields (rva offset, hint, name, ordinalname, entrypoint, forwardedrva)"""
cls = self.__class__
ExportDirectory = self.getparent(headers.IMAGE_DATA_DIRECTORY)
Header, Base = LocateHeader(self), self['Base'].int()
# our section data cache
cache, sections = {}, Header['Sections']
# grab everything that's important
aof, aon, aono = self['AddressOfFunctions'], self['AddressOfNames'], self['AddressOfNameOrdinals']
## export address table
if aof.int() > 0:
# cache the section the eat is contained in since we need it anyways
section = sections.getsectionbyaddress(aof.int())
cache.setdefault(section.getoffset(), (section['VirtualAddress'].int(), array.array('B', section.data().l.serialize())))
# convert the aof into an array that's wikiwiki
data = aof.d.l.cast(dyn.array(dword, len(aof.d)))
eat = array.array('I', data.serialize())
# check that the aof is within the bounds of the section, warn the user despite supporting it anyways
if any(not section.containsaddress(ea) for ea in (aof.int(), aof.int() + 4*self['NumberOfFunctions'].int())):
logging.warn("{:s} : Export Address Table goes outside bounds of designated section. ({:#x} <= {:#x}{:+#x} < {:#x})".format('.'.join((cls.__module__, cls.__name__)), section['VirtualAddress'].int(), aof.int(), aof.int() + 4*self['NumberOfFunctions'].int(), section['VirtualAddress'].int() + section['VirtualSize'].int()))
else:
logging.warn("{:s} : No export addresses found in IMAGE_EXPORT_DIRECTORY. ({:s})".format('.'.join((cls.__module__, cls.__name__)), aof.summary()))
eat = array.array('I', [])
## name ordinal table
if aono.int() > 0:
# cache the section the aono is contained in since we need it anyways
section = sections.getsectionbyaddress(aono.int())
cache.setdefault(section.getoffset(), (section['VirtualAddress'].int(), array.array('B', section.data().l.serialize())))
# convert the aono into an array that's also quick
data = aono.d.l.cast(dyn.array(word, len(aono.d)))
no = array.array('H', data.l.serialize())
# check that the aono is within the bounds of the section, warn the user despite supporting it anyways
if any(not section.containsaddress(ea) for ea in (aono.int(), aono.int() + 2*self['NumberOfNames'].int())):
logging.warn("{:s} : Export Name Ordinal Table goes outside bounds of designated section. ({:#x} <= {:#x}{:+#x} < {:#x})".format('.'.join((cls.__module__, cls.__name__)), section['VirtualAddress'].int(), aono.int(), aono.int() + 2*self['NumberOfNames'].int(), section['VirtualAddress'].int() + section['VirtualSize'].int()))
else:
logging.warn("{:s} : No Export Name Ordinal Table in IMAGE_EXPORT_DIRECTORY. ({:s})".format('.'.join((cls.__module__, cls.__name__)), aono.summary()))
no = array.array('H', [])
# check the name table
if aon.int() == 0:
logging.warn("{:s} : No Export Name Table in IMAGE_EXPORT_DIRECTORY. ({:s})".format('.'.join((cls.__module__, cls.__name__)), aon.summary()))
nt = []
else:
nt = aon.d.l
# now we can start returning things to the user
va = CalculateRelativeOffset(self, aof.int())
for nameva, ordinal in map(None, nt, no):
# grab the name if we can
if nameva is None:
name = None
else:
section = sections.getsectionbyaddress(nameva.int())
sectionva, data = cache[section.getoffset()] if section.getoffset() in cache else cache.setdefault(section.getoffset(), (section['VirtualAddress'].int(), array.array('B', section.data().l.serialize())))
nameofs = nameva.int() - sectionva
name = utils.strdup(data[nameofs:].tostring())
# grab the ordinal if we can
if ordinal is None:
forwarded, value = None, None
elif 0 <= ordinal <= len(eat):
# this is inside the export directory, so it's a forwardedrva
if ExportDirectory.containsaddress(eat[ordinal]):
section = sections.getsectionbyaddress(eat[ordinal])
sectionva, data = cache[section.getoffset()] if section.getoffset() in cache else cache.setdefault(section.getoffset(), (section['VirtualAddress'].int(), array.array('B', section.data().l.serialize())))
forwarded, value = utils.strdup(data[eat[ordinal] - sectionva:].tostring()), None
# otherwise, it's a valid address
else:
forwarded, value = None, eat[ordinal]
# this ordinal is outside the export address table, although
# we can read from the file to deal with these sort of fuxed
# things... this is currently unsupported by pecoff
else:
logging.warning("{:s} : Error resolving export address for {:s} : !({:d} <= {:d} < {:d})".format('.'.join((cls.__module__, cls.__name__)), name, 0, ordinal, len(eat)))
forwarded, value = None, None
ordinalstring = None if ordinal is None else "Ordinal{:d}".format(ordinal + Base)
yield va, ordinal, name, ordinalstring, value, forwarded
va += 4
return
def str(self):
s = self.value.decode('utf-16-be')
return utils.strdup(s)[:len(self)]
def str(self):
s = builtins.unicode(self.value, 'utf-16-be').encode('utf-8')
return utils.strdup(s)[:len(self)]
