diff options
| author | Xusheng <xusheng@vector35.com> | 2021-07-01 12:34:30 +0800 |
|---|---|---|
| committer | Xusheng Li <xushengli@protonmail.com> | 2021-07-05 10:11:47 +0800 |
| commit | 13ff200ba134b8704f37eca99c42b70dab0d17dc (patch) | |
| tree | 876b3db3c53f704b31152aeaede1f2edc9d27b24 /python/examples/kaitai/windows_evt_log.py | |
| parent | 4039a800349dcd587833d3e27d9137e4649818f4 (diff) | |
Remove snippet and kaitai plugin. Note their individual links.
Diffstat (limited to 'python/examples/kaitai/windows_evt_log.py')
| -rw-r--r-- | python/examples/kaitai/windows_evt_log.py | 299 |
1 files changed, 0 insertions, 299 deletions
diff --git a/python/examples/kaitai/windows_evt_log.py b/python/examples/kaitai/windows_evt_log.py deleted file mode 100644 index 99c8e26b..00000000 --- a/python/examples/kaitai/windows_evt_log.py +++ /dev/null @@ -1,299 +0,0 @@ -# This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild - -from pkg_resources import parse_version -from .kaitaistruct import __version__ as ks_version, KaitaiStruct, KaitaiStream, BytesIO -import collections -from enum import Enum - - -if parse_version(ks_version) < parse_version('0.7'): - raise Exception("Incompatible Kaitai Struct Python API: 0.7 or later is required, but you have %s" % (ks_version)) - -class WindowsEvtLog(KaitaiStruct): - """EVT files are Windows Event Log files written by older Windows - operating systems (2000, XP, 2003). They are used as binary log - files by several major Windows subsystems and - applications. Typically, several of them can be found in - `%WINDIR%\system32\config` directory: - - * Application = `AppEvent.evt` - * System = `SysEvent.evt` - * Security = `SecEvent.evt` - - Alternatively, one can export any system event log as distinct .evt - file using relevant option in Event Viewer application. - - A Windows application can submit an entry into these logs using - [ReportEvent](https://msdn.microsoft.com/en-us/library/aa363679(v=vs.85).aspx) - function of Windows API. - - Internally, EVT files consist of a fixed-size header and event - records. There are several usage scenarios (non-wrapping vs wrapping - log files) which result in slightly different organization of - records. - - .. seealso:: - Source - https://msdn.microsoft.com/en-us/library/bb309026(v=vs.85).aspx - """ - SEQ_FIELDS = ["header", "records"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['header']['start'] = self._io.pos() - self.header = self._root.Header(self._io, self, self._root) - self.header._read() - self._debug['header']['end'] = self._io.pos() - self._debug['records']['start'] = self._io.pos() - self.records = [] - i = 0 - while not self._io.is_eof(): - if not 'arr' in self._debug['records']: - self._debug['records']['arr'] = [] - self._debug['records']['arr'].append({'start': self._io.pos()}) - _t_records = self._root.Record(self._io, self, self._root) - _t_records._read() - self.records.append(_t_records) - self._debug['records']['arr'][len(self.records) - 1]['end'] = self._io.pos() - i += 1 - - self._debug['records']['end'] = self._io.pos() - - class Header(KaitaiStruct): - """ - .. seealso:: - Source - https://msdn.microsoft.com/en-us/library/bb309024(v=vs.85).aspx - """ - SEQ_FIELDS = ["len_header", "magic", "version_major", "version_minor", "ofs_start", "ofs_end", "cur_rec_idx", "oldest_rec_idx", "len_file_max", "flags", "retention", "len_header_2"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['len_header']['start'] = self._io.pos() - self.len_header = self._io.read_u4le() - self._debug['len_header']['end'] = self._io.pos() - self._debug['magic']['start'] = self._io.pos() - self.magic = self._io.ensure_fixed_contents(b"\x4C\x66\x4C\x65") - self._debug['magic']['end'] = self._io.pos() - self._debug['version_major']['start'] = self._io.pos() - self.version_major = self._io.read_u4le() - self._debug['version_major']['end'] = self._io.pos() - self._debug['version_minor']['start'] = self._io.pos() - self.version_minor = self._io.read_u4le() - self._debug['version_minor']['end'] = self._io.pos() - self._debug['ofs_start']['start'] = self._io.pos() - self.ofs_start = self._io.read_u4le() - self._debug['ofs_start']['end'] = self._io.pos() - self._debug['ofs_end']['start'] = self._io.pos() - self.ofs_end = self._io.read_u4le() - self._debug['ofs_end']['end'] = self._io.pos() - self._debug['cur_rec_idx']['start'] = self._io.pos() - self.cur_rec_idx = self._io.read_u4le() - self._debug['cur_rec_idx']['end'] = self._io.pos() - self._debug['oldest_rec_idx']['start'] = self._io.pos() - self.oldest_rec_idx = self._io.read_u4le() - self._debug['oldest_rec_idx']['end'] = self._io.pos() - self._debug['len_file_max']['start'] = self._io.pos() - self.len_file_max = self._io.read_u4le() - self._debug['len_file_max']['end'] = self._io.pos() - self._debug['flags']['start'] = self._io.pos() - self.flags = self._root.Header.Flags(self._io, self, self._root) - self.flags._read() - self._debug['flags']['end'] = self._io.pos() - self._debug['retention']['start'] = self._io.pos() - self.retention = self._io.read_u4le() - self._debug['retention']['end'] = self._io.pos() - self._debug['len_header_2']['start'] = self._io.pos() - self.len_header_2 = self._io.read_u4le() - self._debug['len_header_2']['end'] = self._io.pos() - - class Flags(KaitaiStruct): - SEQ_FIELDS = ["reserved", "archive", "log_full", "wrap", "dirty"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['reserved']['start'] = self._io.pos() - self.reserved = self._io.read_bits_int(28) - self._debug['reserved']['end'] = self._io.pos() - self._debug['archive']['start'] = self._io.pos() - self.archive = self._io.read_bits_int(1) != 0 - self._debug['archive']['end'] = self._io.pos() - self._debug['log_full']['start'] = self._io.pos() - self.log_full = self._io.read_bits_int(1) != 0 - self._debug['log_full']['end'] = self._io.pos() - self._debug['wrap']['start'] = self._io.pos() - self.wrap = self._io.read_bits_int(1) != 0 - self._debug['wrap']['end'] = self._io.pos() - self._debug['dirty']['start'] = self._io.pos() - self.dirty = self._io.read_bits_int(1) != 0 - self._debug['dirty']['end'] = self._io.pos() - - - - class Record(KaitaiStruct): - """ - .. seealso:: - Source - https://msdn.microsoft.com/en-us/library/windows/desktop/aa363646(v=vs.85).aspx - """ - SEQ_FIELDS = ["len_record", "type", "body", "len_record2"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['len_record']['start'] = self._io.pos() - self.len_record = self._io.read_u4le() - self._debug['len_record']['end'] = self._io.pos() - self._debug['type']['start'] = self._io.pos() - self.type = self._io.read_u4le() - self._debug['type']['end'] = self._io.pos() - self._debug['body']['start'] = self._io.pos() - _on = self.type - if _on == 1699505740: - self._raw_body = self._io.read_bytes((self.len_record - 12)) - io = KaitaiStream(BytesIO(self._raw_body)) - self.body = self._root.RecordBody(io, self, self._root) - self.body._read() - elif _on == 286331153: - self._raw_body = self._io.read_bytes((self.len_record - 12)) - io = KaitaiStream(BytesIO(self._raw_body)) - self.body = self._root.CursorRecordBody(io, self, self._root) - self.body._read() - else: - self.body = self._io.read_bytes((self.len_record - 12)) - self._debug['body']['end'] = self._io.pos() - self._debug['len_record2']['start'] = self._io.pos() - self.len_record2 = self._io.read_u4le() - self._debug['len_record2']['end'] = self._io.pos() - - - class RecordBody(KaitaiStruct): - """ - .. seealso:: - Source - https://msdn.microsoft.com/en-us/library/windows/desktop/aa363646(v=vs.85).aspx - """ - - class EventTypes(Enum): - error = 1 - audit_failure = 2 - audit_success = 3 - info = 4 - warning = 5 - SEQ_FIELDS = ["idx", "time_generated", "time_written", "event_id", "event_type", "num_strings", "event_category", "reserved", "ofs_strings", "len_user_sid", "ofs_user_sid", "len_data", "ofs_data"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['idx']['start'] = self._io.pos() - self.idx = self._io.read_u4le() - self._debug['idx']['end'] = self._io.pos() - self._debug['time_generated']['start'] = self._io.pos() - self.time_generated = self._io.read_u4le() - self._debug['time_generated']['end'] = self._io.pos() - self._debug['time_written']['start'] = self._io.pos() - self.time_written = self._io.read_u4le() - self._debug['time_written']['end'] = self._io.pos() - self._debug['event_id']['start'] = self._io.pos() - self.event_id = self._io.read_u4le() - self._debug['event_id']['end'] = self._io.pos() - self._debug['event_type']['start'] = self._io.pos() - self.event_type = KaitaiStream.resolve_enum(self._root.RecordBody.EventTypes, self._io.read_u2le()) - self._debug['event_type']['end'] = self._io.pos() - self._debug['num_strings']['start'] = self._io.pos() - self.num_strings = self._io.read_u2le() - self._debug['num_strings']['end'] = self._io.pos() - self._debug['event_category']['start'] = self._io.pos() - self.event_category = self._io.read_u2le() - self._debug['event_category']['end'] = self._io.pos() - self._debug['reserved']['start'] = self._io.pos() - self.reserved = self._io.read_bytes(6) - self._debug['reserved']['end'] = self._io.pos() - self._debug['ofs_strings']['start'] = self._io.pos() - self.ofs_strings = self._io.read_u4le() - self._debug['ofs_strings']['end'] = self._io.pos() - self._debug['len_user_sid']['start'] = self._io.pos() - self.len_user_sid = self._io.read_u4le() - self._debug['len_user_sid']['end'] = self._io.pos() - self._debug['ofs_user_sid']['start'] = self._io.pos() - self.ofs_user_sid = self._io.read_u4le() - self._debug['ofs_user_sid']['end'] = self._io.pos() - self._debug['len_data']['start'] = self._io.pos() - self.len_data = self._io.read_u4le() - self._debug['len_data']['end'] = self._io.pos() - self._debug['ofs_data']['start'] = self._io.pos() - self.ofs_data = self._io.read_u4le() - self._debug['ofs_data']['end'] = self._io.pos() - - @property - def user_sid(self): - if hasattr(self, '_m_user_sid'): - return self._m_user_sid if hasattr(self, '_m_user_sid') else None - - _pos = self._io.pos() - self._io.seek((self.ofs_user_sid - 8)) - self._debug['_m_user_sid']['start'] = self._io.pos() - self._m_user_sid = self._io.read_bytes(self.len_user_sid) - self._debug['_m_user_sid']['end'] = self._io.pos() - self._io.seek(_pos) - return self._m_user_sid if hasattr(self, '_m_user_sid') else None - - @property - def data(self): - if hasattr(self, '_m_data'): - return self._m_data if hasattr(self, '_m_data') else None - - _pos = self._io.pos() - self._io.seek((self.ofs_data - 8)) - self._debug['_m_data']['start'] = self._io.pos() - self._m_data = self._io.read_bytes(self.len_data) - self._debug['_m_data']['end'] = self._io.pos() - self._io.seek(_pos) - return self._m_data if hasattr(self, '_m_data') else None - - - class CursorRecordBody(KaitaiStruct): - """ - .. seealso:: - Source - http://www.forensicswiki.org/wiki/Windows_Event_Log_(EVT)#Cursor_Record - """ - SEQ_FIELDS = ["magic", "ofs_first_record", "ofs_next_record", "idx_next_record", "idx_first_record"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['magic']['start'] = self._io.pos() - self.magic = self._io.ensure_fixed_contents(b"\x22\x22\x22\x22\x33\x33\x33\x33\x44\x44\x44\x44") - self._debug['magic']['end'] = self._io.pos() - self._debug['ofs_first_record']['start'] = self._io.pos() - self.ofs_first_record = self._io.read_u4le() - self._debug['ofs_first_record']['end'] = self._io.pos() - self._debug['ofs_next_record']['start'] = self._io.pos() - self.ofs_next_record = self._io.read_u4le() - self._debug['ofs_next_record']['end'] = self._io.pos() - self._debug['idx_next_record']['start'] = self._io.pos() - self.idx_next_record = self._io.read_u4le() - self._debug['idx_next_record']['end'] = self._io.pos() - self._debug['idx_first_record']['start'] = self._io.pos() - self.idx_first_record = self._io.read_u4le() - self._debug['idx_first_record']['end'] = self._io.pos() - - - |
