let threshold = 10;
QualysHostDetection_CL
| mv-expand todynamic(Detections_s)
| extend Status = tostring(Detections_s.Status), Vulnerability = tostring(Detections_s.Results), Severity = tostring(Detections_s.Severity)
| where Status =~ "New" and Severity == "5"
| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), dcount(NetBios_s) by tostring(Detections_s.QID)
| where dcount_NetBios_s >= threshold
| extend timestamp = StartTime
metadata:
author:
name: chicduong
support:
tier: Community
source:
kind: Community
categories:
domains:
- Security - Threat Intelligence
severity: Medium
description: |
'This creates an incident when a new high severity vulnerability is detected across multilple hosts'
triggerOperator: gt
queryPeriod: 1h
requiredDataConnectors:
- dataTypes:
- QualysHostDetection_CL
connectorId: QualysVulnerabilityManagement
queryFrequency: 1h
triggerThreshold: 0
tactics:
- InitialAccess
query: |
let threshold = 10;
QualysHostDetection_CL
| mv-expand todynamic(Detections_s)
| extend Status = tostring(Detections_s.Status), Vulnerability = tostring(Detections_s.Results), Severity = tostring(Detections_s.Severity)
| where Status =~ "New" and Severity == "5"
| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), dcount(NetBios_s) by tostring(Detections_s.QID)
| where dcount_NetBios_s >= threshold
| extend timestamp = StartTime
kind: Scheduled
relevantTechniques:
- T1190
version: 1.0.2
id: 84cf1d59-f620-4fee-b569-68daf7008b7b
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Detections/QualysVM/NewHighSeverityVulnDetectedAcrossMulitpleHosts.yaml
name: New High Severity Vulnerability Detected Across Multiple Hosts
{
"$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/84cf1d59-f620-4fee-b569-68daf7008b7b')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/84cf1d59-f620-4fee-b569-68daf7008b7b')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Scheduled",
"apiVersion": "2022-11-01-preview",
"properties": {
"displayName": "New High Severity Vulnerability Detected Across Multiple Hosts",
"description": "'This creates an incident when a new high severity vulnerability is detected across multilple hosts'\n",
"severity": "Medium",
"enabled": true,
"query": "let threshold = 10;\nQualysHostDetection_CL\n| mv-expand todynamic(Detections_s)\n| extend Status = tostring(Detections_s.Status), Vulnerability = tostring(Detections_s.Results), Severity = tostring(Detections_s.Severity)\n| where Status =~ \"New\" and Severity == \"5\"\n| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), dcount(NetBios_s) by tostring(Detections_s.QID)\n| where dcount_NetBios_s >= threshold\n| extend timestamp = StartTime\n",
"queryFrequency": "PT1H",
"queryPeriod": "PT1H",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0,
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"InitialAccess"
],
"techniques": [
"T1190"
],
"alertRuleTemplateName": "84cf1d59-f620-4fee-b569-68daf7008b7b",
"customDetails": null,
"entityMappings": null,
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Detections/QualysVM/NewHighSeverityVulnDetectedAcrossMulitpleHosts.yaml",
"templateVersion": "1.0.2"
}
}
]
}