mirror of
https://github.com/volatilityfoundation/volatility
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iMHLv2
90 lines
3.7 KiB
Python
90 lines
3.7 KiB
Python
# Volatility
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#
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# Authors:
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# Michael Cohen <scudette@users.sourceforge.net>
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#
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# This file is part of Volatility.
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#
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# Volatility is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# Volatility is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Volatility. If not, see <http://www.gnu.org/licenses/>.
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#
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""" This plugin contains CORE classes used by lots of other plugins """
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import volatility.poolscan as poolscan
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import volatility.utils as utils
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import volatility.debug as debug #pylint: disable-msg=W0611
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import volatility.commands as commands
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#pylint: disable-msg=C0111
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class AbstractWindowsCommand(commands.Command):
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@staticmethod
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def is_valid_profile(profile):
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return profile.metadata.get('os', 'unknown') == 'windows'
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class AbstractScanCommand(AbstractWindowsCommand):
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"""A command built to provide the common options that
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should be available to Volatility's various scanning
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plugins."""
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# This is a list of scanners to use
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scanners = []
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def __init__(self, config, *args, **kwargs):
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AbstractWindowsCommand.__init__(self, config, *args, **kwargs)
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config.add_option("VIRTUAL", short_option = "V", default = False,
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action = "store_true",
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help = "Scan virtual space instead of physical")
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config.add_option("SHOW-UNALLOCATED", short_option = "W", default = False,
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action = "store_true",
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help = "Skip unallocated objects (e.g. 0xbad0b0b0)")
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config.add_option("START", short_option = "A", default = None,
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action = "store", type = "int",
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help = "The starting address to begin scanning")
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config.add_option("LENGTH", short_option = "G", default = None,
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action = "store", type = "int",
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help = "Length (in bytes) to scan from the starting address")
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def calculate(self):
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addr_space = utils.load_as(self._config)
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if not self.is_valid_profile(addr_space.profile):
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debug.error("This command does not support the selected profile.")
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return self.scan_results(addr_space)
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def offset_column(self):
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return "Offset(V)" if self._config.VIRTUAL else "Offset(P)"
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def scan_results(self, addr_space):
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use_top_down = (addr_space.profile.metadata.get("major", 0) == 6
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and addr_space.profile.metadata.get("minor") >= 2)
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multiscan = poolscan.MultiScanInterface(addr_space = addr_space,
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scanners = self.scanners,
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scan_virtual = self._config.VIRTUAL,
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show_unalloc = self._config.SHOW_UNALLOCATED,
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use_top_down = use_top_down,
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start_offset = self._config.START,
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max_length = self._config.LENGTH)
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return multiscan.scan()
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def pool_align(vm, object_name, align):
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"""Returns the size of the object accounting for pool alignment."""
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size_of_obj = vm.profile.get_obj_size(object_name)
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# Size is rounded to pool alignment
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extra = size_of_obj % align
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if extra:
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size_of_obj += align - extra
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return size_of_obj |