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TS-noodlemctwoodle
Brass Contributor
Jun 04, 2020
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Parsing XML in Azure Sentinel

CliveWatson I wonder if you can give me some pointers for how to parse XML syslog information in Azure Sentinel?   Here is an sample of the redacted syslog message formatted into XML   05:19.0Z...
data collection
  • TS-noodlemctwoodle's avatar
    TS-noodlemctwoodle
    Jun 08, 2020

    CliveWatsonThank you very much with your help on this, your a legend.

     

    Here is the working solution based upon your suggestion :cool:

     

     

     

     

     

    print syslogmsg = '05:19.0Z Some-Server-Name Events - EventFwd [agentInfo@3401 tenantId="0" bpsId="0" tenantGUID="{00000000-0000-0000-0000-000000000000}" tenantNodePath="1\2"] <?xml version="1.0" encoding="utf-8"?><UpdateEvents><MachineInfo><AgentGUID>{00000000-0000-0000-0000-000000000000}</AgentGUID><MachineName>Some-Machine</MachineName><RawMACAddress>112233445566</RawMACAddress><IPAddress>1.1.2.3</IPAddress><AgentVersion>1.2.3.123</AgentVersion><OSName>Windows 41</OSName><TimeZoneBias>-10</TimeZoneBias><UserName>myName</UserName></MachineInfo><BrandCommonUpdater ProductName="Brand Agent" ProductVersion="1.0.0" ProductFamily="AVP"><UpdateEvent><EventID>1234</EventID><Severity>0</Severity><GMTTime>2020-00-00T06:41:02</GMTTime><ProductID>SomeName1999</ProductID><Locale>0001</Locale><Error>0</Error><Type>SomeCore</Type><Version>1234.0</Version><InitiatorID>SOMEAGENT3000</InitiatorID><InitiatorType>OnDemand</InitiatorType><SiteName>Some-Server-Name</SiteName><Description>N/A</Description></UpdateEvent></BrandCommonUpdater></UpdateEvents>'
| parse syslogmsg with * " tenantNodePath" * " " xml 
| extend xml=parse_xml(xml)
| extend MachineName =  xml.UpdateEvents.MachineInfo.MachineName
| extend IPAddress =  xml.UpdateEvents.MachineInfo.IPAddress
| where isnotempty(MachineName)
| project 
    MachineName,
    IPAddress

     

     

    Edit: Just to clean up the query I have made an adjustment to the solution as suggested by CliveWatson and Ofer :smile:

     

CliveWatson's avatar
CliveWatson
Former Employee
Jun 05, 2020

TS-noodlemctwoodle 

 

SecurityEvent
| project EventData
| extend NewField=parse_xml(EventData)
| extend value=NewField.UserData
| where isnotempty(value)
| project value.RuleAndFileData.FilePath

 

I don't have a Syslog example, but this works  

TS-noodlemctwoodle's avatar
TS-noodlemctwoodle
Brass Contributor
Jun 05, 2020

CliveWatson 

 

Would you be able to assist how I might format your example for SecurityEvent into Syslog using the message example?

 

GaryBushey 

I looked at this documentation, although I dont fully understand the examples provided 😐

 

I also looked at this post https://www.systemcenterautomation.com/2020/01/extracting-nested-fields-kusto/ but i haven't been able to replicate the output with the data I have

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