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變更密碼成功 (Red Hat Enterprise Linux Server 7)

Microsoft.ACS.Linux.RHEL.7.Password.Change.Succeeded (Rule)

收集變更密碼成功事件的規則

Knowledge Base article:

摘要

在系統記錄檔中偵測到執行成功的密碼變更作業。

原因

已順利在系統上變更密碼。此監視可讓系統管理員追蹤密碼的變更。

解決方式

警示及/或輸出資料項目的描述包含所發生事件的資訊。如果此活動似乎有問題，請檢查相關聯的事件詳細資訊，以及與此事件同時間發生的其他任何事件。

Element properties:

TargetMicrosoft.ACS.Linux.RHEL.7.ACSEndPoint
CategoryEventCollection
EnabledTrue
Alert GenerateFalse
RemotableTrue

Member Modules:

ID Module Type TypeId RunAs 
EventDS DataSource Microsoft.Unix.SCXLog.Privileged.Datasource Default
WA WriteAction Microsoft.ACS.Unix.SecureEventLogWriter Default

Source Code:

<Rule ID="Microsoft.ACS.Linux.RHEL.7.Password.Change.Succeeded" Enabled="true" Target="Microsoft.ACS.Linux.RHEL.7.ACSEndPoint" Remotable="true">

  <Category>EventCollection</Category>

  <DataSources>

    <DataSource ID="EventDS" TypeID="Unix!Microsoft.Unix.SCXLog.Privileged.Datasource">

      <Host>$Target/Host/Property[Type="Unix!Microsoft.Unix.Computer"]/NetworkName$</Host>

      <LogFile>/var/log/secure</LogFile>

      <!-- [TYPE] Redhat7 Password True -->

      <!-- [INPUT] Sep 14 20:34:47 ostcdev64-rhel7-10 passwd: pam_unix(passwd:chauthtok): password changed for testuser -->

      <!-- [EXPECTED] date="Sep 14 20:34:47"; hostname="ostcdev64-rhel7-10"; process="passwd"; subSystem="pam_unix"; clientUser="testuser" -->

      <RegExpFilter>\s+passwd: \S+\(.*\): password changed for \S+</RegExpFilter>

    </DataSource>

  </DataSources>

  <WriteActions>

    <WriteAction ID="WA" TypeID="ACS.Unix!Microsoft.ACS.Unix.SecureEventLogWriter">

      <RegExp>(?'date'\S+\s+\d+\s+\d+:\d+:\d+)\s+(?:\S+:)?(?'hostname'\S+)\s+(?'process'passwd): (?'subSystem'\S+)\(.*\): password changed for (?'clientUser'\S+)</RegExp>

      <EventType>1</EventType>

      <EventId>27004</EventId>

      <BackrefOverrides>sessionName="Password changed"</BackrefOverrides>

    </WriteAction>

  </WriteActions>

</Rule>