def calculate(self):
## Just grab the AS and scan it using our scanner
address_space = utils.load_as(self._config, astype="physical")
## Will need the kernel AS for later:
kernel_as = utils.load_as(self._config)
for offset in PoolScanDriver().scan(address_space):
pool_obj = obj.Object("_POOL_HEADER", vm=address_space, offset=offset)
## We work out the _DRIVER_OBJECT from the end of the
## allocation (bottom up).
pool_alignment = obj.VolMagic(address_space).PoolAlignment.v()
extension_obj = obj.Object(
"_DRIVER_EXTENSION",
vm=address_space,
offset=(
offset
+ pool_obj.BlockSize * pool_alignment
- common.pool_align(kernel_as, "_DRIVER_EXTENSION", pool_alignment)
),
native_vm=kernel_as,
)
## The _DRIVER_OBJECT is immediately below the _DRIVER_EXTENSION
driver_obj = obj.Object(
"_DRIVER_OBJECT",
vm=address_space,
offset=extension_obj.obj_offset - common.pool_align(kernel_as, "_DRIVER_OBJECT", pool_alignment),
native_vm=kernel_as,
)
## The _OBJECT_HEADER is immediately below the _DRIVER_OBJECT
object_obj = obj.Object(
"_OBJECT_HEADER",
vm=address_space,
offset=driver_obj.obj_offset - address_space.profile.get_obj_offset("_OBJECT_HEADER", "Body"),
native_vm=kernel_as,
)
## Skip unallocated objects
# if object_obj.Type == 0xbad0b0b0:
# continue
if object_obj.get_object_type() != "Driver":
continue
yield (object_obj, driver_obj, extension_obj)
def calculate(self):
## Just grab the AS and scan it using our scanner
address_space = utils.load_as(self._config, astype='physical')
## Will need the kernel AS for later:
kernel_as = utils.load_as(self._config)
for offset in PoolScanDriver().scan(address_space):
pool_obj = obj.Object("_POOL_HEADER",
vm=address_space,
offset=offset)
## We work out the _DRIVER_OBJECT from the end of the
## allocation (bottom up).
pool_alignment = obj.VolMagic(address_space).PoolAlignment.v()
extension_obj = obj.Object(
"_DRIVER_EXTENSION",
vm=address_space,
offset=(offset + pool_obj.BlockSize * pool_alignment -
common.pool_align(kernel_as, "_DRIVER_EXTENSION",
pool_alignment)),
native_vm=kernel_as)
## The _DRIVER_OBJECT is immediately below the _DRIVER_EXTENSION
driver_obj = obj.Object(
"_DRIVER_OBJECT",
vm=address_space,
offset=extension_obj.obj_offset -
common.pool_align(kernel_as, "_DRIVER_OBJECT", pool_alignment),
native_vm=kernel_as)
## The _OBJECT_HEADER is immediately below the _DRIVER_OBJECT
object_obj = obj.Object(
"_OBJECT_HEADER",
vm=address_space,
offset=driver_obj.obj_offset -
address_space.profile.get_obj_offset('_OBJECT_HEADER', 'Body'),
native_vm=kernel_as)
## Skip unallocated objects
#if object_obj.Type == 0xbad0b0b0:
# continue
if object_obj.get_object_type() != "Driver":
continue
yield (object_obj, driver_obj, extension_obj)
def check(self, found):
## The offset of the object is determined by subtracting the offset
## of the PoolTag member to get the start of Pool Object. This done
## because PoolScanners search for the PoolTag.
pool_base = found - self.address_space.profile.get_obj_offset(
'_POOL_HEADER', 'PoolTag')
pool_obj = obj.Object("_POOL_HEADER",
vm=self.address_space,
offset=pool_base)
## We work out the _EPROCESS from the end of the
## allocation (bottom up).
pool_alignment = obj.VolMagic(self.address_space).PoolAlignment.v()
eprocess = obj.Object(
"_EPROCESS",
vm=self.address_space,
offset=pool_base + pool_obj.BlockSize * pool_alignment -
common.pool_align(self.address_space, '_EPROCESS', pool_alignment))
if (eprocess.Pcb.DirectoryTableBase == 0):
return False
if (eprocess.Pcb.DirectoryTableBase % 0x20 != 0):
return False
list_head = eprocess.ThreadListHead
if (list_head.Flink < self.kernel) or (list_head.Blink < self.kernel):
return False
return True
def get_object_bottom_up(self, struct_name, object_type, skip_type_check):
"""Get the windows object contained within this pool
by using the bottom-up approach to finding the object
"""
if not object_type:
return obj.Object(
struct_name,
vm=self.obj_vm,
offset=self.obj_offset + self.obj_vm.profile.get_obj_size("_POOL_HEADER"),
native_vm=self.obj_native_vm,
)
pool_alignment = obj.VolMagic(self.obj_vm).PoolAlignment.v()
the_object = obj.Object(
struct_name,
vm=self.obj_vm,
offset=(
self.obj_offset
+ self.BlockSize * pool_alignment
- common.pool_align(self.obj_vm, struct_name, pool_alignment)
),
native_vm=self.obj_native_vm,
)
header = the_object.get_object_header()
if skip_type_check or header.get_object_type() == object_type:
return the_object
else:
return obj.NoneObject("Cannot find the object")
def check(self, found):
## The offset of the object is determined by subtracting the offset
## of the PoolTag member to get the start of Pool Object. This done
## because PoolScanners search for the PoolTag.
pool_base = found - self.address_space.profile.get_obj_offset("_POOL_HEADER", "PoolTag")
pool_obj = obj.Object("_POOL_HEADER", vm=self.address_space, offset=pool_base)
## We work out the _EPROCESS from the end of the
## allocation (bottom up).
pool_alignment = obj.VolMagic(self.address_space).PoolAlignment.v()
eprocess = obj.Object(
"_EPROCESS",
vm=self.address_space,
offset=pool_base
+ pool_obj.BlockSize * pool_alignment
- common.pool_align(self.address_space, "_EPROCESS", pool_alignment),
)
if eprocess.Pcb.DirectoryTableBase == 0:
return False
if eprocess.Pcb.DirectoryTableBase % 0x20 != 0:
return False
list_head = eprocess.ThreadListHead
if (list_head.Flink < self.kernel) or (list_head.Blink < self.kernel):
return False
return True
def calculate(self):
## Just grab the AS and scan it using our scanner
address_space = utils.load_as(self._config, astype = 'physical')
## Will need the kernel AS for later:
kernel_as = utils.load_as(self._config)
for offset in PoolScanSymlink().scan(address_space):
pool_obj = obj.Object("_POOL_HEADER", vm = address_space,
offset = offset)
## We work out the object from the end of the
## allocation (bottom up).
pool_alignment = obj.VolMagic(address_space).PoolAlignment.v()
link_obj = obj.Object("_OBJECT_SYMBOLIC_LINK", vm = address_space,
offset = (offset + pool_obj.BlockSize * pool_alignment -
common.pool_align(kernel_as, "_OBJECT_SYMBOLIC_LINK", pool_alignment)),
native_vm = kernel_as)
## The _OBJECT_HEADER is immediately below the _OBJECT_SYMBOLIC_LINK
object_obj = obj.Object(
"_OBJECT_HEADER", vm = address_space,
offset = link_obj.obj_offset -
address_space.profile.get_obj_offset('_OBJECT_HEADER', 'Body'),
native_vm = kernel_as
)
if object_obj.get_object_type() != "SymbolicLink":
continue
yield object_obj, link_obj
def get_object_bottom_up(self, struct_name, object_type, skip_type_check):
"""Get the windows object contained within this pool
by using the bottom-up approach to finding the object
"""
if not object_type:
return obj.Object(struct_name, vm = self.obj_vm,
offset = self.obj_offset +
self.obj_vm.profile.get_obj_size("_POOL_HEADER"),
native_vm = self.obj_native_vm)
pool_alignment = obj.VolMagic(self.obj_vm).PoolAlignment.v()
the_object = obj.Object(struct_name, vm = self.obj_vm,
offset = (self.obj_offset + self.BlockSize * pool_alignment -
common.pool_align(self.obj_vm, struct_name, pool_alignment)),
native_vm = self.obj_native_vm)
header = the_object.get_object_header()
if (skip_type_check or
header.get_object_type() == object_type):
return the_object
else:
return obj.NoneObject("Cannot find the object")
def object_offset(self, found, address_space):
""" This returns the offset of the object contained within
this pool allocation.
"""
pool_base = found - \
self.buffer.profile.get_obj_offset('_POOL_HEADER', 'PoolTag')
pool_obj = obj.Object("_POOL_HEADER", vm = address_space,
offset = pool_base)
pool_alignment = obj.VolMagic(address_space).PoolAlignment.v()
object_base = (pool_base + pool_obj.BlockSize * pool_alignment -
common.pool_align(address_space,
'tagWINDOWSTATION', pool_alignment))
return object_base
def calculate(self):
## Just grab the AS and scan it using our scanner
address_space = utils.load_as(self._config, astype="physical")
## Will need the kernel AS for later:
kernel_as = utils.load_as(self._config)
for offset in PoolScanMutant().scan(address_space):
pool_obj = obj.Object("_POOL_HEADER", vm=address_space, offset=offset)
## We work out the _DRIVER_OBJECT from the end of the
## allocation (bottom up).
pool_alignment = obj.VolMagic(address_space).PoolAlignment.v()
mutant = obj.Object(
"_KMUTANT",
vm=address_space,
offset=(
offset
+ pool_obj.BlockSize * pool_alignment
- common.pool_align(kernel_as, "_KMUTANT", pool_alignment)
),
native_vm=kernel_as,
)
## The _OBJECT_HEADER is immediately below the _KMUTANT
object_obj = obj.Object(
"_OBJECT_HEADER",
vm=address_space,
offset=mutant.obj_offset - address_space.profile.get_obj_offset("_OBJECT_HEADER", "Body"),
native_vm=kernel_as,
)
if object_obj.get_object_type() != "Mutant":
continue
## Skip unallocated objects
##if object_obj.Type == 0xbad0b0b0:
## continue
if self._config.SILENT:
if len(object_obj.NameInfo.Name) == 0:
continue
yield (object_obj, mutant)
def object_offset(self, found, address_space):
""" This returns the offset of the object contained within
this pool allocation.
"""
pool_base = found - \
self.buffer.profile.get_obj_offset('_POOL_HEADER', 'PoolTag')
pool_obj = obj.Object("_POOL_HEADER",
vm=address_space,
offset=pool_base)
pool_alignment = obj.VolMagic(address_space).PoolAlignment.v()
object_base = (pool_base +
pool_obj.BlockSize * pool_alignment - common.pool_align(
address_space, 'tagWINDOWSTATION', pool_alignment))
return object_base
def calculate(self):
## Just grab the AS and scan it using our scanner
address_space = utils.load_as(self._config, astype='physical')
## Will need the kernel AS for later:
kernel_as = utils.load_as(self._config)
for offset in PoolScanMutant().scan(address_space):
pool_obj = obj.Object("_POOL_HEADER",
vm=address_space,
offset=offset)
## We work out the _DRIVER_OBJECT from the end of the
## allocation (bottom up).
pool_alignment = obj.VolMagic(address_space).PoolAlignment.v()
mutant = obj.Object(
"_KMUTANT",
vm=address_space,
offset=(
offset + pool_obj.BlockSize * pool_alignment -
common.pool_align(kernel_as, "_KMUTANT", pool_alignment)),
native_vm=kernel_as)
## The _OBJECT_HEADER is immediately below the _KMUTANT
object_obj = obj.Object(
"_OBJECT_HEADER",
vm=address_space,
offset=mutant.obj_offset -
address_space.profile.get_obj_offset('_OBJECT_HEADER', 'Body'),
native_vm=kernel_as)
if object_obj.get_object_type() != "Mutant":
continue
## Skip unallocated objects
##if object_obj.Type == 0xbad0b0b0:
## continue
if self._config.SILENT:
if len(object_obj.NameInfo.Name) == 0:
continue
yield (object_obj, mutant)
def calculate(self):
## Just grab the AS and scan it using our scanner
address_space = utils.load_as(self._config, astype="physical")
## Will need the kernel AS for later:
kernel_as = utils.load_as(self._config)
for offset in PoolScanFile().scan(address_space):
pool_obj = obj.Object("_POOL_HEADER", vm=address_space, offset=offset)
## We work out the _FILE_OBJECT from the end of the
## allocation (bottom up).
pool_alignment = obj.VolMagic(address_space).PoolAlignment.v()
file_obj = obj.Object(
"_FILE_OBJECT",
vm=address_space,
offset=(
offset
+ pool_obj.BlockSize * pool_alignment
- common.pool_align(kernel_as, "_FILE_OBJECT", pool_alignment)
),
native_vm=kernel_as,
)
## The _OBJECT_HEADER is immediately below the _FILE_OBJECT
object_obj = obj.Object(
"_OBJECT_HEADER",
vm=address_space,
offset=file_obj.obj_offset - address_space.profile.get_obj_offset("_OBJECT_HEADER", "Body"),
native_vm=kernel_as,
)
if object_obj.get_object_type() != "File":
continue
## If the string is not reachable we skip it
if not file_obj.FileName.v():
continue
yield (object_obj, file_obj)
def calculate(self):
## Just grab the AS and scan it using our scanner
address_space = utils.load_as(self._config, astype='physical')
## Will need the kernel AS for later:
kernel_as = utils.load_as(self._config)
for offset in PoolScanFile().scan(address_space):
pool_obj = obj.Object("_POOL_HEADER",
vm=address_space,
offset=offset)
## We work out the _FILE_OBJECT from the end of the
## allocation (bottom up).
pool_alignment = obj.VolMagic(address_space).PoolAlignment.v()
file_obj = obj.Object(
"_FILE_OBJECT",
vm=address_space,
offset=(offset + pool_obj.BlockSize * pool_alignment -
common.pool_align(kernel_as, "_FILE_OBJECT",
pool_alignment)),
native_vm=kernel_as)
## The _OBJECT_HEADER is immediately below the _FILE_OBJECT
object_obj = obj.Object(
"_OBJECT_HEADER",
vm=address_space,
offset=file_obj.obj_offset -
address_space.profile.get_obj_offset('_OBJECT_HEADER', 'Body'),
native_vm=kernel_as)
if object_obj.get_object_type() != "File":
continue
## If the string is not reachable we skip it
if not file_obj.FileName.v():
continue
yield (object_obj, file_obj)
def object_offset(self, found, address_space):
""" This returns the offset of the object contained within
this pool allocation.
"""
## The offset of the object is determined by subtracting the offset
## of the PoolTag member to get the start of Pool Object and then
## walking backwards based on pool alignment and pool size.
pool_base = found - self.buffer.profile.get_obj_offset(
'_POOL_HEADER', 'PoolTag')
pool_obj = obj.Object("_POOL_HEADER", vm = address_space,
offset = pool_base)
## We work out the _EPROCESS from the end of the
## allocation (bottom up).
pool_alignment = obj.VolMagic(address_space).PoolAlignment.v()
object_base = (pool_base + pool_obj.BlockSize * pool_alignment -
common.pool_align(address_space, '_EPROCESS', pool_alignment))
return object_base
def object_offset(self, found, address_space):
""" This returns the offset of the object contained within
this pool allocation.
"""
## The offset of the object is determined by subtracting the offset
## of the PoolTag member to get the start of Pool Object and then
## walking backwards based on pool alignment and pool size.
pool_base = found - self.buffer.profile.get_obj_offset(
'_POOL_HEADER', 'PoolTag')
pool_obj = obj.Object("_POOL_HEADER",
vm=address_space,
offset=pool_base)
## We work out the _EPROCESS from the end of the
## allocation (bottom up).
pool_alignment = obj.VolMagic(address_space).PoolAlignment.v()
object_base = (
pool_base + pool_obj.BlockSize * pool_alignment -
common.pool_align(address_space, '_EPROCESS', pool_alignment))
return object_base
def calculate(self):
## Just grab the AS and scan it using our scanner
address_space = utils.load_as(self._config, astype='physical')
## Will need the kernel AS for later:
kernel_as = utils.load_as(self._config)
for offset in PoolScanSymlink().scan(address_space):
pool_obj = obj.Object("_POOL_HEADER",
vm=address_space,
offset=offset)
## We work out the object from the end of the
## allocation (bottom up).
pool_alignment = obj.VolMagic(address_space).PoolAlignment.v()
link_obj = obj.Object(
"_OBJECT_SYMBOLIC_LINK",
vm=address_space,
offset=(offset + pool_obj.BlockSize * pool_alignment -
common.pool_align(kernel_as, "_OBJECT_SYMBOLIC_LINK",
pool_alignment)),
native_vm=kernel_as)
## The _OBJECT_HEADER is immediately below the _OBJECT_SYMBOLIC_LINK
object_obj = obj.Object(
"_OBJECT_HEADER",
vm=address_space,
offset=link_obj.obj_offset -
address_space.profile.get_obj_offset('_OBJECT_HEADER', 'Body'),
native_vm=kernel_as)
if object_obj.get_object_type() != "SymbolicLink":
continue
yield object_obj, link_obj
