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Encryption Downgrade Suspicious Activity (Golden Ticket)

Microsoft.AdvancedThreatAnalytics.1_7.Center.EncryptionDowngradeSuspiciousActivity_GoldenTicket (Rule)

Rule to monitor Microsoft ATA 1.7 Center - EventID 2009 - Encryption Downgrade Suspicious Activity (Golden Ticket)

Knowledge Base article:

Summary

The ATA Center has seen a suspicious activity.

Causes

A suspicious activity was detected.

Resolutions

Review the suspicious activity in the ATA Console and begin response procedures.

https://$Target/Host/Property[Type="Microsoft.AdvancedThreatAnalytics.1_7.Center"]/ConsoleAddress$

Element properties:

TargetMicrosoft.AdvancedThreatAnalytics.1_7.Center
CategorySecurityHealth
EnabledFalse
Alert GenerateTrue
Alert SeverityError
Alert PriorityNormal
RemotableTrue
Alert Message
Encryption Downgrade Suspicious Activity (Golden Ticket) Alert
Alert for rule Microsoft ATA 1.7 Center - EventID 2009 - Encryption Downgrade Suspicious Activity (Golden Ticket)

Member Modules:

ID Module Type TypeId RunAs 
Microsoft.Windows.EventCollector DataSource Microsoft.Windows.EventCollector Default
System.Health.GenerateAlert WriteAction System.Health.GenerateAlert Default

Source Code:

<Rule ID="Microsoft.AdvancedThreatAnalytics.1_7.Center.EncryptionDowngradeSuspiciousActivity_GoldenTicket" Target="Microsoft.AdvancedThreatAnalytics.1_7.Center" Enabled="false" ConfirmDelivery="false" Remotable="true" Priority="Normal" DiscardLevel="100">

  <Category>SecurityHealth</Category>

  <DataSources>

    <DataSource ID="Microsoft.Windows.EventCollector" TypeID="Windows!Microsoft.Windows.EventCollector">

      <ComputerName>.</ComputerName>

      <LogName>Microsoft ATA</LogName>

      <AllowProxying>false</AllowProxying>

      <Expression>

        <SimpleExpression>

          <ValueExpression>

            <XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>

          </ValueExpression>

          <Operator>Equal</Operator>

          <ValueExpression>

            <Value Type="UnsignedInteger">2009</Value>

          </ValueExpression>

        </SimpleExpression>

      </Expression>

    </DataSource>

  </DataSources>

  <WriteActions>

    <WriteAction ID="System.Health.GenerateAlert" TypeID="Health!System.Health.GenerateAlert">

      <Priority>1</Priority>

      <Severity>2</Severity>

      <AlertMessageId>$MPElement[Name="Microsoft.AdvancedThreatAnalytics.1_7.Center.EncryptionDowngradeSuspiciousActivity_GoldenTicket.AlertMessage"]$</AlertMessageId>

      <AlertParameters>

        <AlertParameter1>$Data/EventDescription$</AlertParameter1>

      </AlertParameters>

    </WriteAction>

  </WriteActions>

</Rule>