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解码 XML Wineventlog

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解码 XML Wineventlog

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此功能处于技术预览阶段，可能会在将来的版本中更改或删除。Elastic 将致力于修复任何问题，但技术预览中的功能不受官方 GA 功能支持 SLA 的约束。

decode_xml_wineventlog 处理器解码存储在 field 密钥下的 XML 格式的 Windows 事件日志数据。它将结果输出到 target_field。

示例

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  - decode_xml_wineventlog:
      field: event.original
      target_field: winlog
{
  "event": {
    "original": "<Event xmlns='http://schemas.microsoft.com/win/2004/08/events/event'><System><Provider Name='Microsoft-Windows-Security-Auditing' Guid='{54849625-5478-4994-a5ba-3e3b0328c30d}'/><EventID>4672</EventID><Version>0</Version><Level>0</Level><Task>12548</Task><Opcode>0</Opcode><Keywords>0x8020000000000000</Keywords><TimeCreated SystemTime='2021-03-23T09:56:13.137310000Z'/><EventRecordID>11303</EventRecordID><Correlation ActivityID='{ffb23523-1f32-0000-c335-b2ff321fd701}'/><Execution ProcessID='652' ThreadID='4660'/><Channel>Security</Channel><Computer>vagrant</Computer><Security/></System><EventData><Data Name='SubjectUserSid'>S-1-5-18</Data><Data Name='SubjectUserName'>SYSTEM</Data><Data Name='SubjectDomainName'>NT AUTHORITY</Data><Data Name='SubjectLogonId'>0x3e7</Data><Data Name='PrivilegeList'>SeAssignPrimaryTokenPrivilege\n\t\t\tSeTcbPrivilege\n\t\t\tSeSecurityPrivilege\n\t\t\tSeTakeOwnershipPrivilege\n\t\t\tSeLoadDriverPrivilege\n\t\t\tSeBackupPrivilege\n\t\t\tSeRestorePrivilege\n\t\t\tSeDebugPrivilege\n\t\t\tSeAuditPrivilege\n\t\t\tSeSystemEnvironmentPrivilege\n\t\t\tSeImpersonatePrivilege\n\t\t\tSeDelegateSessionUserImpersonatePrivilege</Data></EventData><RenderingInfo Culture='en-US'><Message>Special privileges assigned to new logon.\n\nSubject:\n\tSecurity ID:\t\tS-1-5-18\n\tAccount Name:\t\tSYSTEM\n\tAccount Domain:\t\tNT AUTHORITY\n\tLogon ID:\t\t0x3E7\n\nPrivileges:\t\tSeAssignPrimaryTokenPrivilege\n\t\t\tSeTcbPrivilege\n\t\t\tSeSecurityPrivilege\n\t\t\tSeTakeOwnershipPrivilege\n\t\t\tSeLoadDriverPrivilege\n\t\t\tSeBackupPrivilege\n\t\t\tSeRestorePrivilege\n\t\t\tSeDebugPrivilege\n\t\t\tSeAuditPrivilege\n\t\t\tSeSystemEnvironmentPrivilege\n\t\t\tSeImpersonatePrivilege\n\t\t\tSeDelegateSessionUserImpersonatePrivilege</Message><Level>Information</Level><Task>Special Logon</Task><Opcode>Info</Opcode><Channel>Security</Channel><Provider>Microsoft Windows security auditing.</Provider><Keywords><Keyword>Audit Success</Keyword></Keywords></RenderingInfo></Event>"
  }
}

将产生以下输出

{
  "event": {
    "original": "<Event xmlns='http://schemas.microsoft.com/win/2004/08/events/event'><System><Provider Name='Microsoft-Windows-Security-Auditing' Guid='{54849625-5478-4994-a5ba-3e3b0328c30d}'/><EventID>4672</EventID><Version>0</Version><Level>0</Level><Task>12548</Task><Opcode>0</Opcode><Keywords>0x8020000000000000</Keywords><TimeCreated SystemTime='2021-03-23T09:56:13.137310000Z'/><EventRecordID>11303</EventRecordID><Correlation ActivityID='{ffb23523-1f32-0000-c335-b2ff321fd701}'/><Execution ProcessID='652' ThreadID='4660'/><Channel>Security</Channel><Computer>vagrant</Computer><Security/></System><EventData><Data Name='SubjectUserSid'>S-1-5-18</Data><Data Name='SubjectUserName'>SYSTEM</Data><Data Name='SubjectDomainName'>NT AUTHORITY</Data><Data Name='SubjectLogonId'>0x3e7</Data><Data Name='PrivilegeList'>SeAssignPrimaryTokenPrivilege\n\t\t\tSeTcbPrivilege\n\t\t\tSeSecurityPrivilege\n\t\t\tSeTakeOwnershipPrivilege\n\t\t\tSeLoadDriverPrivilege\n\t\t\tSeBackupPrivilege\n\t\t\tSeRestorePrivilege\n\t\t\tSeDebugPrivilege\n\t\t\tSeAuditPrivilege\n\t\t\tSeSystemEnvironmentPrivilege\n\t\t\tSeImpersonatePrivilege\n\t\t\tSeDelegateSessionUserImpersonatePrivilege</Data></EventData><RenderingInfo Culture='en-US'><Message>Special privileges assigned to new logon.\n\nSubject:\n\tSecurity ID:\t\tS-1-5-18\n\tAccount Name:\t\tSYSTEM\n\tAccount Domain:\t\tNT AUTHORITY\n\tLogon ID:\t\t0x3E7\n\nPrivileges:\t\tSeAssignPrimaryTokenPrivilege\n\t\t\tSeTcbPrivilege\n\t\t\tSeSecurityPrivilege\n\t\t\tSeTakeOwnershipPrivilege\n\t\t\tSeLoadDriverPrivilege\n\t\t\tSeBackupPrivilege\n\t\t\tSeRestorePrivilege\n\t\t\tSeDebugPrivilege\n\t\t\tSeAuditPrivilege\n\t\t\tSeSystemEnvironmentPrivilege\n\t\t\tSeImpersonatePrivilege\n\t\t\tSeDelegateSessionUserImpersonatePrivilege</Message><Level>Information</Level><Task>Special Logon</Task><Opcode>Info</Opcode><Channel>Security</Channel><Provider>Microsoft Windows security auditing.</Provider><Keywords><Keyword>Audit Success</Keyword></Keywords></RenderingInfo></Event>",
    "action":   "Special Logon",
		"code":     "4672",
		"kind":     "event",
		"outcome":  "success",
		"provider": "Microsoft-Windows-Security-Auditing",
  },
	"host": {
    "name": "vagrant",
  },
  "log": {
    "level": "information",
  },
  "winlog": {
    "channel": "Security",
    "outcome": "success",
    "activity_id": "{ffb23523-1f32-0000-c335-b2ff321fd701}",
    "level": "information",
    "event_id": 4672,
    "provider_name": "Microsoft-Windows-Security-Auditing",
    "record_id": 11303,
    "computer_name": "vagrant",
    "keywords_raw": 9232379236109516800,
    "opcode": "Info",
    "provider_guid": "{54849625-5478-4994-a5ba-3e3b0328c30d}",
    "event_data": {
      "SubjectUserSid": "S-1-5-18",
      "SubjectUserName": "SYSTEM",
      "SubjectDomainName": "NT AUTHORITY",
      "SubjectLogonId": "0x3e7",
      "PrivilegeList": "SeAssignPrimaryTokenPrivilege\n\t\t\tSeTcbPrivilege\n\t\t\tSeSecurityPrivilege\n\t\t\tSeTakeOwnershipPrivilege\n\t\t\tSeLoadDriverPrivilege\n\t\t\tSeBackupPrivilege\n\t\t\tSeRestorePrivilege\n\t\t\tSeDebugPrivilege\n\t\t\tSeAuditPrivilege\n\t\t\tSeSystemEnvironmentPrivilege\n\t\t\tSeImpersonatePrivilege\n\t\t\tSeDelegateSessionUserImpersonatePrivilege"
    },
    "task": "Special Logon",
    "keywords": [
      "Audit Success"
    ],
    "message": "Special privileges assigned to new logon.\n\nSubject:\n\tSecurity ID:\t\tS-1-5-18\n\tAccount Name:\t\tSYSTEM\n\tAccount Domain:\t\tNT AUTHORITY\n\tLogon ID:\t\t0x3E7\n\nPrivileges:\t\tSeAssignPrimaryTokenPrivilege\n\t\t\tSeTcbPrivilege\n\t\t\tSeSecurityPrivilege\n\t\t\tSeTakeOwnershipPrivilege\n\t\t\tSeLoadDriverPrivilege\n\t\t\tSeBackupPrivilege\n\t\t\tSeRestorePrivilege\n\t\t\tSeDebugPrivilege\n\t\t\tSeAuditPrivilege\n\t\t\tSeSystemEnvironmentPrivilege\n\t\t\tSeImpersonatePrivilege\n\t\t\tSeDelegateSessionUserImpersonatePrivilege",
    "process": {
      "pid": 652,
      "thread": {
        "id": 4660
      }
    }
  }
}

请参阅 条件，了解支持的条件列表。

配置设置

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Elastic Agent 处理器在摄取管道之前执行，这意味着您的处理器配置不能引用由摄取管道或 Logstash 创建的字段。有关更多限制，请参阅 使用处理器的局限性是什么？

名称 必需 默认值 描述

field

是

message

包含 XML 的源字段。

target_field

是

winlog

将解码的 XML 写入到的字段。要将解码的 XML 字段合并到事件的根目录，请使用空字符串指定 target_field (target_field: "")。

overwrite_keys

否

true

事件中已存在的密钥是否会被解码的 XML 对象中的密钥覆盖。

map_ecs_fields

否

true

是否尽可能映射其他 ECS 字段。请注意，ECS 字段密钥位于 target_field 之外。

ignore_missing

否

false

如果指定的字段不存在，是否返回错误。

ignore_failure

否

false

是否忽略处理器产生的所有错误。

字段映射

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字段映射如下所示

事件字段 源 XML 元素 注释

winlog.channel

<Event><System><Channel>

winlog.event_id

<Event><System><EventID>

winlog.provider_name

<Event><System><Provider>

Name 属性

winlog.record_id

<Event><System><EventRecordID>

winlog.task

<Event><System><Task>

winlog.computer_name

<Event><System><Computer>

winlog.keywords

<Event><RenderingInfo><Keywords>

每个 Keyword 的列表

winlog.opcodes

<Event><RenderingInfo><Opcode>

winlog.provider_guid

<Event><System><Provider>

Guid 属性

winlog.version

<Event><System><Version>

winlog.time_created

<Event><System><TimeCreated>

SystemTime 属性

winlog.outcome

<Event><System><Keywords>

如果设置了 bit 0x20000000000000，则为“success”，如果设置了 0x10000000000000，则为“failure”

winlog.level

<Event><System><Level>

转换为小写

winlog.message

<Event><RenderingInfo><Message>

删除换行符

winlog.user.identifier

<Event><System><Security><UserID>

winlog.user.domain

<Event><System><Security><Domain>

winlog.user.name

<Event><System><Security><Name>

winlog.user.type

<Event><System><Security><Type>

从整数转换为字符串

winlog.event_data

<Event><EventData>

Data 元素中 Name 属性为键，Data 元素的值为值的映射

winlog.user_data

<Event><UserData>

Data 元素中 Name 属性为键，Data 元素的值为值的映射

winlog.activity_id

<Event><System><Correlation><ActivityID>

winlog.related_activity_id

<Event><System><Correlation><RelatedActivityID>

winlog.kernel_time

<Event><System><Execution><KernelTime>

winlog.process.pid

<Event><System><Execution><ProcessID>

winlog.process.thread.id

<Event><System><Execution><ThreadID>

winlog.processor_id

<Event><System><Execution><ProcessorID>

winlog.processor_time

<Event><System><Execution><ProcessorTime>

winlog.session_id

<Event><System><Execution><SessionID>

winlog.user_time

<Event><System><Execution><UserTime>

winlog.error.code

<Event><ProcessingErrorData><ErrorCode>

如果启用了 map_ecs_fields，则还会执行以下字段映射

事件字段 源 XML 或其他字段 注释

event.code

winlog.event_id

event.kind

"event"

event.provider

<Event><System><Provider>

Name 属性

event.action

<Event><RenderingInfo><Task>

event.host.name

<Event><System><Computer>

event.outcome

winlog.outcome

log.level

winlog.level

message

winlog.message

error.code

winlog.error.code

error.message

winlog.error.message

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