Proxy - At least one invalid authentication signature was detected.

Proxy___At_least_one_invalid_authentication_signature_was_detected._3_7_Rule (Rule)

Knowledge Base article:

Management Pack

Summary
At least one invalid authentication signature was detected.

Causes
This could be due to a client or server which is not handling authentication correctly, or it could be due to an attacker.

Resolutions
None needed unless the failure count is high (>100). Check your network for any rogue clients. Restart the server if problem persists.

Element properties:

Target

Microsoft.Office.LiveCommunicationsServer.2005.Microsoft_Office_Live_Communications_Server_2005_Enterprise_Edition_Installation

Category

EventCollection

Enabled

False

Event_ID

16435

Event Source

Live Communications Server Proxy

Alert Generate

True

Alert Severity

Error

Alert Priority

Low

Remotable

True

Alert Message

Proxy - At least one invalid authentication signature was detected.

$Data/EventDescription$

Event Log

Application

Comment

Mom2005ID='{2CBF3032-3900-41BE-AFF4-D9C9EE475E28}';MOM2005ComputerGroupID={CFD63B0C-55F0-407D-91B4-EE48A4AAA89A}

Member Modules:

ID	Module Type	TypeId	RunAs
_F6DA1507_12AF_11D3_AB21_00A0C98620CE_	DataSource	Microsoft.Windows.EventProvider	Default
CollectEventData	WriteAction	Microsoft.SystemCenter.CollectEvent	Default
CollectEventDataWarehouse	WriteAction	Microsoft.SystemCenter.DataWarehouse.PublishEventData	Default
GenerateAlert	WriteAction	System.Mom.BackwardCompatibility.AlertResponse	Default

Source Code:

<Rule ID="Proxy___At_least_one_invalid_authentication_signature_was_detected._3_7_Rule" Target="Microsoft.Office.LiveCommunicationsServer.2005.Microsoft_Office_Live_Communications_Server_2005_Enterprise_Edition_Installation" Enabled="false" ConfirmDelivery="true" Comment="Mom2005ID='{2CBF3032-3900-41BE-AFF4-D9C9EE475E28}';MOM2005ComputerGroupID={CFD63B0C-55F0-407D-91B4-EE48A4AAA89A}">

  <Category>EventCollection</Category>

  <DataSources>

    <DataSource ID="_F6DA1507_12AF_11D3_AB21_00A0C98620CE_" Comment="{F6DA1507-12AF-11D3-AB21-00A0C98620CE}" TypeID="WindowsLibrary!Microsoft.Windows.EventProvider">

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

      <LogName>Application</LogName>

      <Expression>

        <And>

          <Expression>

            <SimpleExpression>

              <ValueExpression>

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

              </ValueExpression>

              <Operator>Equal</Operator>

              <ValueExpression>

                <Value>16435</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

          <Expression>

            <SimpleExpression>

              <ValueExpression>

                <XPathQuery Type="String">PublisherName</XPathQuery>

              </ValueExpression>

              <Operator>Equal</Operator>

              <ValueExpression>

                <Value>Live Communications Server Proxy</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

        </And>

      </Expression>

    </DataSource>

  </DataSources>

  <WriteActions>

    <WriteAction ID="GenerateAlert" TypeID="MomBackwardCompatibility!System.Mom.BackwardCompatibility.AlertResponse">

      <AlertGeneration>

        <GenerateAlert>true</GenerateAlert>

        <Owner/>

        <Description>

            $Data/EventDescription$

          </Description>

        <AlertLevel>40</AlertLevel>

        <ResolutionState/>

        <Source>

            $Data/PublisherName$

          </Source>

        <Name>Proxy - At least one invalid authentication signature was detected.</Name>

      </AlertGeneration>

      <InvokerType>0</InvokerType>

    </WriteAction>

    <WriteAction ID="CollectEventData" TypeID="SystemCenterLibrary!Microsoft.SystemCenter.CollectEvent"/>

    <WriteAction ID="CollectEventDataWarehouse" TypeID="DataWarehouseLibrary!Microsoft.SystemCenter.DataWarehouse.PublishEventData"/>

  </WriteActions>

</Rule>