NRT Sensitive Azure Key Vault operations
Id | 884ead54-cb3f-4676-a1eb-b26532d6cbfd |
Rulename | NRT Sensitive Azure Key Vault operations |
Description | Identifies when sensitive Azure Key Vault operations are used. This includes: VaultDelete, KeyDelete, SecretDelete, SecretPurge, KeyPurge, SecretBackup, KeyBackup. Any Backup operations should match with expected scheduled backup activity. |
Severity | Low |
Tactics | Impact |
Techniques | T1485 |
Required data connectors | AzureKeyVault |
Kind | NRT |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Azure Key Vault/Analytic Rules/NRT_KeyVaultSensitiveOperations.yaml |
Version | 1.0.0 |
Arm template | 884ead54-cb3f-4676-a1eb-b26532d6cbfd.json |
let SensitiveOperationList = dynamic(
["VaultDelete", "KeyDelete", "SecretDelete", "SecretPurge", "KeyPurge", "SecretBackup", "KeyBackup"]);
AzureDiagnostics
| extend ResultType = columnifexists("ResultType", "NoResultType")
| extend requestUri_s = columnifexists("requestUri_s", "None"), identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g = columnifexists("identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g", "None")
| extend id_s = columnifexists("id_s", "None"), CallerIPAddress = columnifexists("CallerIPAddress", "None"), clientInfo_s = columnifexists("clientInfo_s", "None")
| where ResultType !~ "None" and isnotempty(ResultType)
| where identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g !~ "None" and isnotempty(identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g)
| where id_s !~ "None" and isnotempty(id_s)
| where CallerIPAddress !~ "None" and isnotempty(CallerIPAddress)
| where clientInfo_s !~ "None" and isnotempty(clientInfo_s)
| where requestUri_s !~ "None" and isnotempty(requestUri_s)
| where ResourceType =~ "VAULTS" and ResultType =~ "Success"
| where OperationName in~ (SensitiveOperationList)
| summarize EventCount=count(), StartTimeUtc=min(TimeGenerated), EndTimeUtc=max(TimeGenerated), TimeTriggered=makelist(TimeGenerated),OperationNameList=make_set(OperationName), RequestURLList=make_set(requestUri_s), CallerIPList = make_set(CallerIPAddress), CallerIPMax= arg_max(CallerIPAddress,*) by ResourceType, ResultType, Resource, id_s, identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g, clientInfo_s
version: 1.0.0
status: Available
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Azure Key Vault/Analytic Rules/NRT_KeyVaultSensitiveOperations.yaml
requiredDataConnectors:
- connectorId: AzureKeyVault
dataTypes:
- KeyVaultData
entityMappings:
- fieldMappings:
- columnName: identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g
identifier: FullName
entityType: Account
- fieldMappings:
- columnName: CallerIPMax
identifier: Address
entityType: IP
kind: NRT
severity: Low
query: |
let SensitiveOperationList = dynamic(
["VaultDelete", "KeyDelete", "SecretDelete", "SecretPurge", "KeyPurge", "SecretBackup", "KeyBackup"]);
AzureDiagnostics
| extend ResultType = columnifexists("ResultType", "NoResultType")
| extend requestUri_s = columnifexists("requestUri_s", "None"), identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g = columnifexists("identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g", "None")
| extend id_s = columnifexists("id_s", "None"), CallerIPAddress = columnifexists("CallerIPAddress", "None"), clientInfo_s = columnifexists("clientInfo_s", "None")
| where ResultType !~ "None" and isnotempty(ResultType)
| where identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g !~ "None" and isnotempty(identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g)
| where id_s !~ "None" and isnotempty(id_s)
| where CallerIPAddress !~ "None" and isnotempty(CallerIPAddress)
| where clientInfo_s !~ "None" and isnotempty(clientInfo_s)
| where requestUri_s !~ "None" and isnotempty(requestUri_s)
| where ResourceType =~ "VAULTS" and ResultType =~ "Success"
| where OperationName in~ (SensitiveOperationList)
| summarize EventCount=count(), StartTimeUtc=min(TimeGenerated), EndTimeUtc=max(TimeGenerated), TimeTriggered=makelist(TimeGenerated),OperationNameList=make_set(OperationName), RequestURLList=make_set(requestUri_s), CallerIPList = make_set(CallerIPAddress), CallerIPMax= arg_max(CallerIPAddress,*) by ResourceType, ResultType, Resource, id_s, identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g, clientInfo_s
id: 884ead54-cb3f-4676-a1eb-b26532d6cbfd
description: |
'Identifies when sensitive Azure Key Vault operations are used. This includes: VaultDelete, KeyDelete, SecretDelete, SecretPurge, KeyPurge, SecretBackup, KeyBackup.
Any Backup operations should match with expected scheduled backup activity.'
name: NRT Sensitive Azure Key Vault operations
relevantTechniques:
- T1485
tactics:
- Impact
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspace": {
"type": "String"
}
},
"resources": [
{
"id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/884ead54-cb3f-4676-a1eb-b26532d6cbfd')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/884ead54-cb3f-4676-a1eb-b26532d6cbfd')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Nrt",
"apiVersion": "2022-11-01",
"properties": {
"displayName": "NRT Sensitive Azure Key Vault operations",
"description": "'Identifies when sensitive Azure Key Vault operations are used. This includes: VaultDelete, KeyDelete, SecretDelete, SecretPurge, KeyPurge, SecretBackup, KeyBackup.\nAny Backup operations should match with expected scheduled backup activity.'\n",
"severity": "Low",
"enabled": true,
"query": "let SensitiveOperationList = dynamic(\n[\"VaultDelete\", \"KeyDelete\", \"SecretDelete\", \"SecretPurge\", \"KeyPurge\", \"SecretBackup\", \"KeyBackup\"]);\nAzureDiagnostics\n| extend ResultType = columnifexists(\"ResultType\", \"NoResultType\")\n| extend requestUri_s = columnifexists(\"requestUri_s\", \"None\"), identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g = columnifexists(\"identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g\", \"None\")\n| extend id_s = columnifexists(\"id_s\", \"None\"), CallerIPAddress = columnifexists(\"CallerIPAddress\", \"None\"), clientInfo_s = columnifexists(\"clientInfo_s\", \"None\")\n| where ResultType !~ \"None\" and isnotempty(ResultType)\n| where identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g !~ \"None\" and isnotempty(identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g)\n| where id_s !~ \"None\" and isnotempty(id_s)\n| where CallerIPAddress !~ \"None\" and isnotempty(CallerIPAddress)\n| where clientInfo_s !~ \"None\" and isnotempty(clientInfo_s)\n| where requestUri_s !~ \"None\" and isnotempty(requestUri_s)\n| where ResourceType =~ \"VAULTS\" and ResultType =~ \"Success\"\n| where OperationName in~ (SensitiveOperationList)\n| summarize EventCount=count(), StartTimeUtc=min(TimeGenerated), EndTimeUtc=max(TimeGenerated), TimeTriggered=makelist(TimeGenerated),OperationNameList=make_set(OperationName), RequestURLList=make_set(requestUri_s), CallerIPList = make_set(CallerIPAddress), CallerIPMax= arg_max(CallerIPAddress,*) by ResourceType, ResultType, Resource, id_s, identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g, clientInfo_s\n",
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Impact"
],
"techniques": [
"T1485"
],
"alertRuleTemplateName": "884ead54-cb3f-4676-a1eb-b26532d6cbfd",
"customDetails": null,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"identifier": "FullName",
"columnName": "identity_claim_http_schemas_microsoft_com_identity_claims_objectidentifier_g"
}
]
},
{
"entityType": "IP",
"fieldMappings": [
{
"identifier": "Address",
"columnName": "CallerIPMax"
}
]
}
],
"templateVersion": "1.0.0",
"status": "Available",
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Azure Key Vault/Analytic Rules/NRT_KeyVaultSensitiveOperations.yaml"
}
}
]
}