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Idb11fdc35-6368-4cc0-8128-52cd2e2cdda0
RulenameBitSight - drop in the headline rating
DescriptionRule helps to detect if headline ratings is drop in BitSight.
SeverityHigh
TacticsReconnaissance
CommandAndControl
TechniquesT1591
T1090
Required data connectorsBitSight
KindScheduled
Query frequency1d
Query period24h
Trigger threshold0
Trigger operatorGreaterThan
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/BitSight/Analytic%20Rules/BitSightDropInHeadlineRating.yaml
Version1.0.2
Arm templateb11fdc35-6368-4cc0-8128-52cd2e2cdda0.json
Deploy To Azure
let timeframe = 24h;
BitSightGraphData
| where ingestion_time() > ago(timeframe)
| where toint(RatingDifferance) < 0
| project RatingDate, Rating, CompanyName, RatingDifferance
incidentConfiguration:
  createIncident: false
triggerOperator: GreaterThan
id: b11fdc35-6368-4cc0-8128-52cd2e2cdda0
query: |
  let timeframe = 24h;
  BitSightGraphData
  | where ingestion_time() > ago(timeframe)
  | where toint(RatingDifferance) < 0
  | project RatingDate, Rating, CompanyName, RatingDifferance
triggerThreshold: 0
tactics:
- Reconnaissance
- CommandAndControl
name: BitSight - drop in the headline rating
status: Available
customDetails:
  CompanyName: CompanyName
  CompanyRating: Rating
queryFrequency: 1d
description: |
  'Rule helps to detect if headline ratings is drop in BitSight.'
severity: High
alertDetailsOverride:
  alertDescriptionFormat: 'Alert is generated for {{CompanyName}}.\n\nRating Date: {{RatingDate}}\nRating Drop: {{RatingDifferance}}'
  alertDisplayNameFormat: 'BitSight : Alert for drop in the headline rating of {{CompanyName}}.'
kind: Scheduled
version: 1.0.2
requiredDataConnectors:
- connectorId: BitSight
  dataTypes:
  - BitSightGraphData
eventGroupingSettings:
  aggregationKind: AlertPerResult
relevantTechniques:
- T1591
- T1090
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/BitSight/Analytic%20Rules/BitSightDropInHeadlineRating.yaml
queryPeriod: 24h
{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/b11fdc35-6368-4cc0-8128-52cd2e2cdda0')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/b11fdc35-6368-4cc0-8128-52cd2e2cdda0')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "Alert is generated for {{CompanyName}}.\\n\\nRating Date: {{RatingDate}}\\nRating Drop: {{RatingDifferance}}",
          "alertDisplayNameFormat": "BitSight : Alert for drop in the headline rating of {{CompanyName}}."
        },
        "alertRuleTemplateName": "b11fdc35-6368-4cc0-8128-52cd2e2cdda0",
        "customDetails": {
          "CompanyName": "CompanyName",
          "CompanyRating": "Rating"
        },
        "description": "'Rule helps to detect if headline ratings is drop in BitSight.'\n",
        "displayName": "BitSight - drop in the headline rating",
        "enabled": true,
        "entityMappings": null,
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "incidentConfiguration": {
          "createIncident": false
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/BitSight/Analytic%20Rules/BitSightDropInHeadlineRating.yaml",
        "query": "let timeframe = 24h;\nBitSightGraphData\n| where ingestion_time() > ago(timeframe)\n| where toint(RatingDifferance) < 0\n| project RatingDate, Rating, CompanyName, RatingDifferance\n",
        "queryFrequency": "P1D",
        "queryPeriod": "PT24H",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CommandAndControl",
          "Reconnaissance"
        ],
        "techniques": [
          "T1090",
          "T1591"
        ],
        "templateVersion": "1.0.2",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}