用python查看windows事件日志的方法（待后续研究）

#coding=utf8
import copy
import ctypes
from ctypes import byref, POINTER, cast, c_uint64, c_ulong, c_char_p, c_wchar_p
from ctypes.wintypes import BOOL, DWORD, HANDLE, LPVOID, WORD, HKEY, LONG
import datetime

c_uint64_p = POINTER(c_uint64)
c_int_p = POINTER(c_ulong)
LPDWORD = ctypes.POINTER(DWORD)
advapi32 = ctypes.CDLL("advapi32")

def openEventLog(computer=None, channel="Application"):
    param_oel = ((1, 'lpUNCServerName'),(1, 'lpSourceName'))
    _openEventLog = ctypes.WINFUNCTYPE(HANDLE, ctypes.c_wchar_p, ctypes.c_wchar_p)
    openEventlog = _openEventLog(('OpenEventLogW', advapi32), param_oel)
    h = openEventlog(computer, channel)
    return h

def readEventLog(h, flag=9, offset=0):

    class EVENTLOGRECORD(ctypes.Structure):
        _fields_ = [ ('Length', DWORD),('Reserved', DWORD),('RecordNumber',DWORD),('TimeGenerated',DWORD),
        ('TimeWritten',DWORD),('EventID',DWORD),('EventType', WORD),('NumStrings', WORD),('EventCategory',WORD),
        ('ReservedFlags',WORD),('ClosingRecordNumber',DWORD),('StringOffset',DWORD),('UserSidLength',DWORD),
        ('UserSidOffset',DWORD),('DataLength',DWORD),('DataOffset',DWORD)]

    lpBuffer = ctypes.create_string_buffer(5600) # 没找到释放方法（自动释放？）
    param_rel = ((1, 'hEventLog'), (1, 'dwReadFlags'), (1, 'dwRecordOffset'),
        (2, 'lpBuffer', lpBuffer),(1, 'nNumberOfBytesToRead', 5600),
        (2, 'pnBytesRead'),(2, 'pnMinNumberOfBytesNeeded'))#第五个参数默认值怎么设置合适
    _readEventLog = ctypes.WINFUNCTYPE(BOOL, HANDLE, DWORD, DWORD, LPVOID, DWORD, LPDWORD, LPDWORD)
    readEventLog = _readEventLog(('ReadEventLogW', advapi32), param_rel)
    events = readEventLog(h, flag, 0)

    eventlist = []
    max_count = events[1]
    p = events[0]
    length = 0
    while max_count > length:
        p1 = c_char_p(p[length:length+56])
        pevent = cast(p1, POINTER(EVENTLOGRECORD))
        if not pevent[0].Length:
            break
        length += pevent[0].Length
        eventlist.append(pevent[0])

    return eventlist

def closeEventLog(hevent):
    param_rel = ((1, 'hEventLog'),)
    _closeEventLog = ctypes.WINFUNCTYPE(BOOL, HANDLE)
    closeEventLog = _closeEventLog(('ReadEventLogW', advapi32), param_rel)
    return True

def getNumberOfEventLogRecords(hevent):
    param_rel = ((1, 'hEventLog'), (2, 'NumberOfRecords'))
    _getNumberOfEventLogRecords = ctypes.WINFUNCTYPE(BOOL, HANDLE, LPDWORD)
    getNumberOfEventLogRecords = _getNumberOfEventLogRecords(('GetNumberOfEventLogRecords', advapi32), param_rel)
    return getNumberOfEventLogRecords(hevent)

def lookupAccountSid(computer, sid):
    ''' restype: domain, username, account_type'''
    sid = str(sid)
    cchName = DWORD(255)
    cchReferencedDomainName = DWORD(255)
    try:
        NameBuff = ctypes.create_unicode_buffer(255)
        DomainBuff = ctypes.create_unicode_buffer(255)
        paramflags = ((1, 'lpSystemName'), (1, 'lpSid'), (2, 'lpName', NameBuff), (1, 'cchName', byref(cchName)),
                (2, "lpReferencedDomainName", DomainBuff),
                (1, "cchReferencedDomainName", byref(cchReferencedDomainName)), (2, "peUse"))
        pass
        _LookupAccountSid = ctypes.WINFUNCTYPE(BOOL, c_wchar_p, c_wchar_p, c_wchar_p, LPDWORD, c_wchar_p, LPDWORD, c_int_p)
        _LookupAccountSid = _LookupAccountSid(('LookupAccountSidW', advapi32), paramflags)
    except AttributeError as e:
        NameBuff = ctypes.create_string_buffer(255)
        DomainBuff = ctypes.create_string_buffer(255)
        paramflags = ((1, 'lpSystemName'), (1, 'lpSid'), (2, 'lpName', NameBuff), (1, 'cchName', 255),
                (2, "lpReferencedDomainName", DomainBuff), (1, "cchReferencedDomainName", 255), (2, "peUse"))
        _LookupAccountSid = ctypes.WINFUNCTYPE(BOOL, c_char_p, c_char_p, c_char_p, LPDWORD, c_char_p, LPDWORD ,c_int_p)
        _LookupAccountSid = _LookupAccountSid(('LookupAccountSidA', advapi32), paramflags)
#    def _LookupAccountSid_errcheck(result, func, args):
 #       if not result:
  #          raise ctypes.WinError()
   #     return args[2].value, args[1].value, args[3].value
#
 #   _LookupAccountSid.errcheck = _LookupAccountSid_errcheck
    return _LookupAccountSid(computer, sid)

def regEnumKeyEx(hKey):
    lpName = ctypes.create_unicode_buffer(255)
    paramflags = ((1, 'hKey'), (1, 'dwIndex'), (2, 'lpName', lpName), (1, 'ccnName', 255))
    _regEnumKey = ctypes.WINFUNCTYPE(LONG, HKEY, DWORD, c_wchar_p, DWORD)
    regEnumKey = _regEnumKey(('RegEnumKeyW', advapi32), paramflags)
    list1 = []
    i = 0
    s = ''
    while True:
        keyname = regEnumKey(hKey, i)
        if keyname.value != s:
            list1.append(keyname.value)
            s = keyname.value
        else:
            break
        i += 1
    return list1

def regOpenKey(hKey, lpSubKey, ulOptions, samDesired):
    param_rel = ((1, 'hKey'), (1, 'lpSubKey'), (1, 'ulOptions'), (1, 'samDesired'), (2, 'phkResult'))
    _regOpenKeyEx = ctypes.WINFUNCTYPE(LONG, HKEY, c_wchar_p, DWORD, c_ulong, PHKEY)
    regOpenKeyEx = _regOpenKeyEx(('RegOpenKeyExW', advapi32), param_rel)
    return regOpenKeyEx(hKey, lpSubKey, ulOptions, samDesired)

def getNumberOfEventLogRecords(hevent):
    param_rel = ((1, 'hEventLog'), (2, 'NumberOfRecords'))
    _getNumberOfEventLogRecords = ctypes.WINFUNCTYPE(BOOL, HANDLE, PDWORD)
    getNumberOfEventLogRecords = _getNumberOfEventLogRecords(('GetNumberOfEventLogRecords', advapi32), param_rel)
    return getNumberOfEventLogRecords(hevent)

#def _LookupAccountSid_errcheck(result, func, args):
 #   if result != 0:
  #      raise ctypes.WinError()
   # return args
#''
#readEventLog.errcheck = _LookupAccountSid_errcheck

if __name__ == "__main__":
    import pprint
    h = openEventLog()
    print(h)
    # for i in readEventLog(h):
    #     print(i.Length, i.Reserved, i.RecordNumber, i.TimeGenerated, i.TimeWritten, i.EventID, i.EventType, i.NumStrings,
    #         i.EventCategory, i.ReservedFlags, i.ClosingRecordNumber, i.StringOffset, i.UserSidLength, i.UserSidOffset,
    #         i.DataLength, i.DataOffset)

　　有些日志位于C:\Windows\System32\winevt\Logs目录下，需要用python第三方包解析，比如想要研究的Microsoft-Windows-TaskScheduler%4Operational.evtx，待研究

wevtutil gl Microsoft-Windows-TaskScheduler/Operational

wevtutil.exe qe Microsoft-Windows-TaskScheduler/Operational "/q:*[System [(EventID=140)]]" /f:text /rd:true /c:100 > c:\sys.txt

查看所有任务： chcp 437|schtasks /Query /fo List /v

查看具体某一任务：schtasks /query /TN test

计划任务保存在C:\Windows\System32\Tasks这个文件夹中