Infoblox - High Threat Level Query Not Blocked Detected
Id | dc7af829-d716-4774-9d6f-03d9aa7c27a4 |
Rulename | Infoblox - High Threat Level Query Not Blocked Detected |
Description | At least 1 high threat level query generated by single host in 1 hour that is not blocked or redirected. Customize query count, scheduling, responses and more. This rule depends on a parser based on a Kusto Function to work as expected called **InfobloxCDC**. |
Severity | Medium |
Tactics | Impact |
Techniques | T1498 T1565 |
Required data connectors | InfobloxCloudDataConnector |
Kind | Scheduled |
Query frequency | 1h |
Query period | 1h |
Trigger threshold | 0 |
Trigger operator | gt |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Infoblox Cloud Data Connector/Analytic Rules/Infoblox-HighThreatLevelQueryNotBlockedDetected.yaml |
Version | 1.0.1 |
Arm template | dc7af829-d716-4774-9d6f-03d9aa7c27a4.json |
let threshold = 1;
InfobloxCDC
| where DeviceEventClassID has_cs "RPZ"
| where ThreatLevel_Score >=80
| where InfobloxB1PolicyAction == "Log" or SimplifiedDeviceAction == "PASSTHRU"
| summarize count() by SourceIP
| where count_ > threshold
| join kind=inner (InfobloxCDC
| where DeviceEventClassID has_cs "RPZ"
| where ThreatLevel_Score >=80
| where InfobloxB1PolicyAction == "Log" or SimplifiedDeviceAction == "PASSTHRU"
) on SourceIP
requiredDataConnectors:
- connectorId: InfobloxCloudDataConnector
dataTypes:
- CommonSecurityLog (InfobloxCDC)
eventGroupingSettings:
aggregationKind: SingleAlert
triggerOperator: gt
queryFrequency: 1h
name: Infoblox - High Threat Level Query Not Blocked Detected
status: Available
queryPeriod: 1h
id: dc7af829-d716-4774-9d6f-03d9aa7c27a4
description: |
'At least 1 high threat level query generated by single host in 1 hour that is not blocked or redirected. Customize query count, scheduling, responses and more. This rule depends on a parser based on a Kusto Function to work as expected called [**InfobloxCDC**](https://aka.ms/sentinel-InfobloxCloudDataConnector-parser).'
version: 1.0.1
severity: Medium
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Infoblox Cloud Data Connector/Analytic Rules/Infoblox-HighThreatLevelQueryNotBlockedDetected.yaml
query: |
let threshold = 1;
InfobloxCDC
| where DeviceEventClassID has_cs "RPZ"
| where ThreatLevel_Score >=80
| where InfobloxB1PolicyAction == "Log" or SimplifiedDeviceAction == "PASSTHRU"
| summarize count() by SourceIP
| where count_ > threshold
| join kind=inner (InfobloxCDC
| where DeviceEventClassID has_cs "RPZ"
| where ThreatLevel_Score >=80
| where InfobloxB1PolicyAction == "Log" or SimplifiedDeviceAction == "PASSTHRU"
) on SourceIP
incidentConfiguration:
createIncident: true
kind: Scheduled
customDetails:
SourceMACAddress: SourceMACAddress
InfobloxB1FeedName: InfobloxB1FeedName
InfobloxB1PolicyName: InfobloxB1PolicyName
InfobloxB1Network: InfobloxB1Network
InfobloxB1Action: InfobloxB1PolicyAction
entityMappings:
- entityType: IP
fieldMappings:
- identifier: Address
columnName: SourceIP
- entityType: Host
fieldMappings:
- identifier: HostName
columnName: DeviceName
- identifier: OSVersion
columnName: InfobloxB1SrcOSVersion
- identifier: FullName
columnName: SourceUserName
- entityType: DNS
fieldMappings:
- identifier: DomainName
columnName: DestinationDnsDomain
- entityType: Malware
fieldMappings:
- identifier: Name
columnName: ThreatProperty
- identifier: Category
columnName: ThreatClass
relevantTechniques:
- T1498
- T1565
tactics:
- Impact
triggerThreshold: 0
{
"$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/dc7af829-d716-4774-9d6f-03d9aa7c27a4')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/dc7af829-d716-4774-9d6f-03d9aa7c27a4')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Scheduled",
"apiVersion": "2022-11-01-preview",
"properties": {
"displayName": "Infoblox - High Threat Level Query Not Blocked Detected",
"description": "'At least 1 high threat level query generated by single host in 1 hour that is not blocked or redirected. Customize query count, scheduling, responses and more. This rule depends on a parser based on a Kusto Function to work as expected called [**InfobloxCDC**](https://aka.ms/sentinel-InfobloxCloudDataConnector-parser).'\n",
"severity": "Medium",
"enabled": true,
"query": "let threshold = 1;\nInfobloxCDC\n| where DeviceEventClassID has_cs \"RPZ\"\n| where ThreatLevel_Score >=80\n| where InfobloxB1PolicyAction == \"Log\" or SimplifiedDeviceAction == \"PASSTHRU\"\n| summarize count() by SourceIP\n| where count_ > threshold\n| join kind=inner (InfobloxCDC\n | where DeviceEventClassID has_cs \"RPZ\"\n | where ThreatLevel_Score >=80\n | where InfobloxB1PolicyAction == \"Log\" or SimplifiedDeviceAction == \"PASSTHRU\"\n ) on SourceIP\n",
"queryFrequency": "PT1H",
"queryPeriod": "PT1H",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0,
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Impact"
],
"techniques": [
"T1498",
"T1565"
],
"alertRuleTemplateName": "dc7af829-d716-4774-9d6f-03d9aa7c27a4",
"incidentConfiguration": {
"createIncident": true
},
"eventGroupingSettings": {
"aggregationKind": "SingleAlert"
},
"customDetails": {
"InfobloxB1PolicyName": "InfobloxB1PolicyName",
"InfobloxB1FeedName": "InfobloxB1FeedName",
"InfobloxB1Action": "InfobloxB1PolicyAction",
"SourceMACAddress": "SourceMACAddress",
"InfobloxB1Network": "InfobloxB1Network"
},
"entityMappings": [
{
"fieldMappings": [
{
"identifier": "Address",
"columnName": "SourceIP"
}
],
"entityType": "IP"
},
{
"fieldMappings": [
{
"identifier": "HostName",
"columnName": "DeviceName"
},
{
"identifier": "OSVersion",
"columnName": "InfobloxB1SrcOSVersion"
},
{
"identifier": "FullName",
"columnName": "SourceUserName"
}
],
"entityType": "Host"
},
{
"fieldMappings": [
{
"identifier": "DomainName",
"columnName": "DestinationDnsDomain"
}
],
"entityType": "DNS"
},
{
"fieldMappings": [
{
"identifier": "Name",
"columnName": "ThreatProperty"
},
{
"identifier": "Category",
"columnName": "ThreatClass"
}
],
"entityType": "Malware"
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Infoblox Cloud Data Connector/Analytic Rules/Infoblox-HighThreatLevelQueryNotBlockedDetected.yaml",
"status": "Available",
"templateVersion": "1.0.1"
}
}
]
}