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#!/usr/bin/env python3 | ||
# | ||
# Author: | ||
# Tamas Jos (@skelsec) | ||
# | ||
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import logging | ||
from minidump.minidumpfile import MinidumpFile | ||
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if __name__ == '__main__': | ||
import argparse | ||
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parser = argparse.ArgumentParser(description='Pure Python implementation of Mimikatz -currently only minidump-') | ||
parser.add_argument('minidumpfile', help='path to the minidump file of lsass.exe') | ||
parser.add_argument('-v', '--verbose', action='count', default=0) | ||
parser.add_argument('--modules', action='store_true', help='List modules') | ||
parser.add_argument('--threads', action='store_true', help='List threads') | ||
parser.add_argument('--memory', action='store_true', help='List memory') | ||
parser.add_argument('--sysinfo', action='store_true', help='Show sysinfo') | ||
parser.add_argument('--comments', action='store_true', help='Show comments') | ||
parser.add_argument('--handles', action='store_true', help='List handles') | ||
parser.add_argument('--misc', action='store_true', help='Show misc info') | ||
parser.add_argument('--all', action='store_true', help='Show all info') | ||
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args = parser.parse_args() | ||
if args.verbose == 0: | ||
logging.basicConfig(level=logging.INFO) | ||
elif args.verbose == 1: | ||
logging.basicConfig(level=logging.DEBUG) | ||
else: | ||
logging.basicConfig(level=1) | ||
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mf = MinidumpFile.parse(args.minidumpfile) | ||
reader = mf.get_reader() | ||
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if args.all or args.threads: | ||
if mf.threads is not None: | ||
print(str(mf.threads)) | ||
if mf.threads_ex is not None: | ||
print(str(mf.threads_ex)) | ||
if mf.thread_info is not None: | ||
print(str(mf.thread_info)) | ||
if args.all or args.modules: | ||
if mf.modules is not None: | ||
print(str(mf.modules)) | ||
if mf.unloaded_modules is not None: | ||
print(str(mf.unloaded_modules)) | ||
if args.all or args.memory: | ||
if mf.memory_segments is not None: | ||
print(str(mf.memory_segments)) | ||
if mf.memory_segments_64 is not None: | ||
print(str(mf.memory_segments_64)) | ||
if mf.memory_info is not None: | ||
print(str(mf.memory_info)) | ||
if args.all or args.sysinfo: | ||
if mf.sysinfo is not None: | ||
print(str(mf.sysinfo)) | ||
if args.all or args.comments: | ||
if mf.comment_a is not None: | ||
print(str(mf.comment_a)) | ||
if mf.comment_w is not None: | ||
print(str(mf.comment_w)) | ||
if args.all or args.handles: | ||
if mf.handles is not None: | ||
print(str(mf.handles)) | ||
if args.all or args.misc: | ||
if mf.misc_info is not None: | ||
print(str(mf.misc_info)) |
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# https://msdn.microsoft.com/en-us/library/windows/desktop/ms680383(v=vs.85).aspx | ||
class MINIDUMP_LOCATION_DESCRIPTOR: | ||
def __init__(self): | ||
self.DataSize = None | ||
self.Rva = None | ||
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@staticmethod | ||
def parse(buff): | ||
mld = MINIDUMP_LOCATION_DESCRIPTOR() | ||
mld.DataSize = int.from_bytes(buff.read(4), byteorder = 'little', signed = False) | ||
mld.Rva = int.from_bytes(buff.read(4), byteorder = 'little', signed = False) | ||
return mld | ||
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def __str__(self): | ||
t = 'Size: %s File offset: %s' % (self.DataSize, self.Rva) | ||
return t | ||
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class MINIDUMP_LOCATION_DESCRIPTOR64: | ||
def __init__(self): | ||
self.DataSize = None | ||
self.Rva = None | ||
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@staticmethod | ||
def parse(buff): | ||
mld = MINIDUMP_LOCATION_DESCRIPTOR64() | ||
mld.DataSize = int.from_bytes(buff.read(8), byteorder = 'little', signed = False) | ||
mld.Rva = int.from_bytes(buff.read(8), byteorder = 'little', signed = False) | ||
return mld | ||
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def __str__(self): | ||
t = 'Size: %s File offset: %s' % (self.DataSize, self.Rva) | ||
return t | ||
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class MINIDUMP_STRING: | ||
def __init__(self): | ||
self.Length = None | ||
self.Buffer = None | ||
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@staticmethod | ||
def parse(buff): | ||
ms = MINIDUMP_STRING() | ||
ms.Length = int.from_bytes(buff.read(4), byteorder = 'little', signed = False) | ||
ms.Buffer = buff.read(ms.Length) | ||
return ms | ||
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@staticmethod | ||
def get_from_rva(rva, buff): | ||
pos = buff.tell() | ||
buff.seek(rva, 0) | ||
ms = MINIDUMP_STRING.parse(buff) | ||
buff.seek(pos, 0) | ||
return ms.Buffer.decode('utf-16-le') | ||
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class MinidumpMemorySegment: | ||
def __init__(self): | ||
self.start_virtual_address = None | ||
self.size = None | ||
self.end_virtual_address = None | ||
self.start_file_address = None | ||
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def parse_mini(memory_decriptor, buff): | ||
""" | ||
memory_descriptor: MINIDUMP_MEMORY_DESCRIPTOR | ||
buff: file_handle | ||
""" | ||
mms = MinidumpMemorySegment() | ||
mms.start_virtual_address = memory_decriptor.StartOfMemoryRange | ||
mms.size = memory_decriptor.Memory.DataSize | ||
mms.start_file_address = memory_decriptor.Memory.Rva | ||
mms.end_virtual_address = mms.start_virtual_address + mms.size | ||
return mms | ||
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def parse_full(memory_decriptor, buff, rva): | ||
mms = MinidumpMemorySegment() | ||
mms.start_virtual_address = memory_decriptor.StartOfMemoryRange | ||
mms.size = memory_decriptor.DataSize | ||
mms.start_file_address = rva | ||
mms.end_virtual_address = mms.start_virtual_address + mms.size | ||
return mms | ||
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def inrange(self, virt_addr): | ||
if virt_addr >= self.start_virtual_address and virt_addr < self.end_virtual_address: | ||
return True | ||
return False | ||
def read(self, virtual_address, size, file_handler): | ||
if virtual_address > self.end_virtual_address or virtual_address < self.start_virtual_address: | ||
raise Exception('Reading from wrong segment!') | ||
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if virtual_address+size > self.end_virtual_address: | ||
raise Exception('Read would cross boundaries!') | ||
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pos = file_handler.tell() | ||
offset = virtual_address - self.start_virtual_address | ||
file_handler.seek(self.start_file_address + offset, 0) | ||
data = file_handler.read(size) | ||
file_handler.seek(pos, 0) | ||
return data | ||
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def search(self, pattern, file_handler): | ||
if len(pattern) > self.size: | ||
return [] | ||
pos = file_handler.tell() | ||
file_handler.seek(self.start_file_address, 0) | ||
data = file_handler.read(self.size) | ||
file_handler.seek(pos, 0) | ||
fl = [] | ||
offset = 0 | ||
while len(data) > len(pattern): | ||
marker = data.find(pattern) | ||
if marker == -1: | ||
return fl | ||
fl.append(marker + offset + self.start_virtual_address) | ||
data = data[marker+1:] | ||
offset = marker + 1 | ||
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return fl | ||
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def __str__(self): | ||
t = 'VA Start: %s, RVA: %s, Size: %s' % (hex(self.start_virtual_address), hex(self.start_file_address), hex(self.size)) | ||
return t | ||
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def hexdump( src, length=16, sep='.', start = 0): | ||
''' | ||
@brief Return {src} in hex dump. | ||
@param[in] length {Int} Nb Bytes by row. | ||
@param[in] sep {Char} For the text part, {sep} will be used for non ASCII char. | ||
@return {Str} The hexdump | ||
@note Full support for python2 and python3 ! | ||
''' | ||
result = []; | ||
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# Python3 support | ||
try: | ||
xrange(0,1); | ||
except NameError: | ||
xrange = range; | ||
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for i in xrange(0, len(src), length): | ||
subSrc = src[i:i+length]; | ||
hexa = ''; | ||
isMiddle = False; | ||
for h in xrange(0,len(subSrc)): | ||
if h == length/2: | ||
hexa += ' '; | ||
h = subSrc[h]; | ||
if not isinstance(h, int): | ||
h = ord(h); | ||
h = hex(h).replace('0x',''); | ||
if len(h) == 1: | ||
h = '0'+h; | ||
hexa += h+' '; | ||
hexa = hexa.strip(' '); | ||
text = ''; | ||
for c in subSrc: | ||
if not isinstance(c, int): | ||
c = ord(c); | ||
if 0x20 <= c < 0x7F: | ||
text += chr(c); | ||
else: | ||
text += sep; | ||
if start == 0: | ||
result.append(('%08X: %-'+str(length*(2+1)+1)+'s |%s|') % (i, hexa, text)); | ||
else: | ||
result.append(('%08X+%08X: %-'+str(length*(2+1)+1)+'s |%s|') % (start, i, hexa, text)); | ||
return '\n'.join(result); |
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