mirror of
https://github.com/volatilityfoundation/volatility
synced 2026-06-08 18:04:46 +00:00
atcuno
135 lines
4.5 KiB
Python
135 lines
4.5 KiB
Python
# Volatility
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# Copyright (C) 2007-2013 Volatility Foundation
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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 Version 2 as
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# published by the Free Software Foundation. You may not use, modify or
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# distribute this program under any other version of the GNU General
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# Public License.
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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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"""
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@author: Andrew Case
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@license: GNU General Public License 2.0
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@contact: atcuno@gmail.com
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@organization:
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"""
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import os
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import volatility.obj as obj
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import volatility.debug as debug
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import volatility.plugins.linux.common as linux_common
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import volatility.plugins.linux.pslist as linux_pslist
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class linux_librarydump(linux_pslist.linux_pslist):
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"""Dumps shared libraries in process memory to disk"""
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def __init__(self, config, *args, **kwargs):
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linux_pslist.linux_pslist.__init__(self, config, *args, **kwargs)
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self._config.add_option('DUMP-DIR', short_option = 'D', default = None, help = 'Output directory', action = 'store', type = 'str')
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self._config.add_option('BASE', short_option = 'b', default = None, help = 'Dump driver with BASE address (in hex)', action = 'store', type = 'int')
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def _procexedump(self, task, proc_as, elf_addr):
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sects = {}
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ret = ""
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use_rel = False
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elf_hdr = obj.Object("elf_hdr", offset = elf_addr, vm = proc_as)
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for phdr in elf_hdr.program_headers():
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if str(phdr.p_type) != 'PT_LOAD':
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continue
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start = phdr.p_vaddr
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if start == 0:
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use_rel = True
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if use_rel:
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start = start + elf_addr
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sz = phdr.p_memsz
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end = start + sz
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if start % 4096:
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start = start & ~0xfff
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if end % 4096:
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end = (end & ~0xfff) + 4096
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real_size = end - start
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# print "addr: %8x sz: %8x offset: %8x sz: %8x" % (phdr.p_vaddr, phdr.p_memsz, phdr.p_offset, phdr.p_filesz),
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# print " | start: %8x sz: %8x end: %8x real_size: %8x" % (start, sz, end, real_size)
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sects[start] = real_size
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last_end = -1
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for start in sorted(sects.keys()):
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read_size = sects[start]
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if last_end != -1 and last_end != start + read_size:
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debug.error("busted LOAD segments in %s | %d -> %x != %x + %x" % (task.comm, task.pid, last_end, start, read_size))
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buf = proc_as.zread(start, read_size)
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ret = ret + buf
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return ret
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def render_text(self, outfd, data):
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if not self._config.DUMP_DIR:
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debug.error("-D/--dump-dir must given that specifies an existing directory")
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self.table_header(outfd, [("Offset", "[addrpad]"),
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("Name", "20"),
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("Pid", "15"),
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("Address", "[addrpad]"),
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("Output File", "")])
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for task in data:
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if not task.mm:
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continue
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proc_as = task.get_process_address_space()
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for vma in task.get_proc_maps():
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if self._config.BASE and vma.vm_start != self._config.BASE:
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continue
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elf_addr = vma.vm_start
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buf = proc_as.zread(elf_addr, 4)
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if buf != "\x7fELF":
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continue
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if elf_addr == 0xffffe000:
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continue
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file_path = os.path.join(self._config.DUMP_DIR, "%s.%d.%#8x" % (task.comm, task.pid, elf_addr))
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file_contents = self._procexedump(task, proc_as, elf_addr)
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fd = open(file_path, "wb")
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fd.write(file_contents)
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fd.close()
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self.table_row(outfd, task.obj_offset,
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task.comm,
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str(task.pid),
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elf_addr,
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file_path)
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