关于python:windows事件日志消息转换为字典然后转换为pandas列

windows event log message conversion to dictionary then to pandas columns

我有一个包含Windows事件日志消息字段的pandas列,如下所示。如何浏览和删除所有非键值样式对?

消息列包含类似的数据,但可能更多的key:value类型,因为这只是一个事件ID。

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message
['subject':'none','security id':'s-1-5-12','account name':'myaccountname','account domain':'domain', 'logon id':'0x3e6',    ' process information':'none', 'new process id':'0x1a53', 'new process name':'c:\windows\system32\ipconfig.exe', 'token elevation type':'%%1932','creator process id':'0x1b33', 'process command line':'none',  '  token elevation type indicates the type of token that was assigned to the new process in accordance with user account control policy.',' type 1 is a full token with no privileges removed or groups disabled.  a full token is only used if user account control is disabled or if the user is the built-in administrator account or a service account.', ' type 2 is an elevated token with no privileges removed or groups disabled.  an elevated token is used when user account control is enabled and the user chooses to start the program using run as administrator.  an elevated token is also used when an application is configured to always require administrative privilege or to always require maximum privilege', ' and the user is a member of the administrators group.',' type 3 is a limited token with administrative privileges removed and administrative groups disabled.  the limited token is used when user account control is enabled', ' the application does not require administrative privilege', ' and the user does not choose to start the program using run as administrator.']
['subject':'none','security id':'s-1-5-13','account name':'myaccountname','account domain':'domain', 'logon id':'0x3e6',    ' process information':'none', 'new process id':'0x1a53', 'new process name':'c:\windows\system32
et.exe'
, 'token elevation type':'%%1932','creator process id':'0x1b33', 'process command line':'none',   '  token elevation type indicates the type of token that was assigned to the new process in accordance with user account control policy.',' type 1 is a full token with no privileges removed or groups disabled.  a full token is only used if user account control is disabled or if the user is the built-in administrator account or a service account.', ' type 2 is an elevated token with no privileges removed or groups disabled.  an elevated token is used when user account control is enabled and the user chooses to start the program using run as administrator.  an elevated token is also used when an application is configured to always require administrative privilege or to always require maximum privilege', ' and the user is a member of the administrators group.',' type 3 is a limited token with administrative privileges removed and administrative groups disabled.  the limited token is used when user account control is enabled', ' the application does not require administrative privilege', ' and the user does not choose to start the program using run as administrator.']

预期输出:

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subject  security id   account name  logon id  process information  new processs id                  new process name  token elevation type  creator process id   process command line
   none     s-1-5-12  myaccountname     0x3e6                 none           0x1a53  c:\windows\system32\ipconfig.exe                %%1932              0x1b33                   none

如果我能从我的数据中得到非键:值对,我知道我可以使用这个方法。

用于分隔列的大熊猫字典列表


您可以使用yaml,如果dict中缺少value,则添加None值,然后删除所有None对:

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print (df)
                                       message
0  {'a':'none','b':'2', '  token.', ' type 1'}

import yaml

print (df.message.apply(yaml.load))
0    {'  token.': None, ' type 1': None, 'b': '2', ...
Name: message, dtype: object

df.message = df.message.apply(lambda x: {k: v for k, v in yaml.load(x).items() if v})
print (df)
                   message
0  {'b': '2', 'a': 'none'}

用你的数据:

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df = pd.DataFrame({'message':["{'subject':'none', 'security id':'s-1-5-12', 'account name':'myaccountname','account domain':'domain', 'logon id':'0x3e6', ' process information':'none', 'new process id':'0x1a53', 'new process name':'c:\windows\system32\ipconfig.exe', 'token elevation type':'%%1932', 'creator process id':'0x1b33','process command line':'none', '  token elevation type indicates the type of token that was assigned to the new process in accordance with user account control policy.', ' type 1 is a full token with no privileges removed or groups disabled.  a full token is only used if user account control is disabled or if the user is the built-in administrator account or a service account.', ' type 2 is an elevated token with no privileges removed or groups disabled.  an elevated token is used when user account control is enabled and the user chooses to start the program using run as administrator.  an elevated token is also used when an application is configured to always require administrative privilege or to always require maimum privilege', ' and the user is a member of the administrators group.',' type 3 is a limited token with administrative privileges removed and administrative groups disabled.  the limited token is used when user account control is enabled', ' the application does not require administrative privilege', ' and the user does not choose to start the program using run as administrator.'}"]})
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import yaml
df.message = df.message.apply(lambda x: {k: v for k, v in yaml.load(x).items() if v})

df1 = pd.DataFrame(df.pop('message').values.tolist(), index=df.index)
print (df1)
   process information account domain   account name creator process id  \
0                 none         domain  myaccountname             0x1b33  

  logon id new process id                  new process name  \
0    0x3e6         0x1a53  c:\windows\system32\ipconfig.exe  

  process command line security id subject token elevation type  
0                 none    s-1-5-12    none               %%1932

编辑:

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import yaml
df.message=df.message.str[0].apply(lambda x:{k:v for k,v in yaml.load('{'+x+'}').items() if v})

df1 = pd.DataFrame(df.pop('message').values.tolist(), index=df.index)
print (df1)
   process information account domain   account name creator process id  \
0                 none         domain  myaccountname             0x1b33  

  logon id new process id                  new process name  \
0    0x3e6         0x1a53  c:\windows\system32\ipconfig.exe  

  process command line security id subject token elevation type  
0                 none    s-1-5-12    none               %%1932