Join Sentinel Entity Json in Logicapp

Karthick G 101

Sentinel alert Entity output in Logicapp is in below format

[
{
"$id": "3",
"Name": “randamuser1”,
"Type": "account"
},
{
"$id": "4",
"Name": "randamuser2”,
"Type": "account"
},

{
"$id": "6",
"HostName": “hostofuser1”,
"Type": "host"
},
{
"$id": "7",
"HostName": “hostofuser2,
"Type": "host"
},
]

i wanted to map Name & Hostname in same json block, how to achieve it.

Kamlesh Kumar 3,861 Reputation points

2022-08-14T06:16:43.567+00:00

Hi @Karthick G ,

Welcome to Microsoft Q&A Platform. Thank you for the question.

Could you please share the correct input and output (expected) json file, because seems above sample is not correct. It has object 'Name' and 'HostName'.

Regards,
Kamlesh Kumar

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Karthick G 101 Reputation points

2022-08-14T06:41:03.94+00:00

In logicapp when i invoke Microsoft Sentinel Alert the Entites are displayed in below format in am trying get username and devicename

[
{
"$id": "3",
"Name": “randamuser1”,
"Type": "account"
},
{
"$id": "4",
"Name": "randamuser2”,
"Type": "account"
},

{
"$id": "6",
"HostName": “hostofuser1”,
"Type": "host"
},
{
"$id": "7",
"HostName": “hostofuser2,
"Type": "host"
},
]

my expected output is

{
"Name": “randamuser1”,
"HostName": “hostofuser1”
}

{
"Name": "randamuser2”,
"HostName": “hostofuser2,
}

so that i can build a html table in below format

Name hostname
randamuser1 hostofuser1
randamuser2 hostofuser2

Kamlesh Kumar 3,861

If you see the source array data, 1st & 2nd list has Name object but 3rd and 4th doesn't have the Name though have HostName. Could you please confirm if source data is correct?

[  
	{  
		"$id": "3",  
		"Name": "randamuser1",  
		"Type": "account"  
	},  
	{  
		"$id": "4",  
		"Name": "randamuser2",  
		"Type": "account"  
	},  
	{  
		"$id": "6",  
		"HostName": "hostofuser1",  
		"Type": "host"  
	},  
	{  
		"$id": "7",  
		"HostName": "hostofuser2",  
		"Type": "host"  
	}  
]

Karthick G 101 Reputation points

2022-08-14T12:06:52.197+00:00

Yes the values are correct thats how it is being retrieved from Sentinel alert. Image for you reference.

2 answers

David Broggy 5,681 Reputation points MVP

2022-08-14T13:40:52.793+00:00

Hi Karthick,

Those entities likely won't map the way you'd like given your analytic rule.

However if you play with your kql you could create a concatenated value and map that to an identifier. (I use strcat frequently)

The other option is to add a log analytics query to your logic app and pull out the 2 fields that way, but I'd do it as in the first suggestion.

Hope that helps.

reference:
strcatfunction
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MayankBargali-MSFT 68,476 Reputation points

2022-08-18T04:54:50.56+00:00

@Karthick G Thanks for reaching out. Unfortunately, you cannot format the data at the logic app end as there is no relation or way to distinguish which user account will be mapped to which user host in case if you want to format it at the logic app end either using inline code or using different action such as foreach, conditions etc. as I don't see any relationship that would help in processing it further at the logic app end.

Alternative as David has mentioned I will suggest you to only pull the required fields as per your business needs.
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