AV detections related to Dev-0530 actors

let Dev0530_threats = dynamic(["Trojan:Win32/SiennaPurple.A", "Ransom:Win32/SiennaBlue.A", "Ransom:Win32/SiennaBlue.B"]);
SecurityAlert
| where ProviderName == "MDATP"
| extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)
| extend ThreatFamilyName = tostring(parse_json(ExtendedProperties).ThreatFamilyName)
| where ThreatName in~ (Dev0530_threats) or ThreatFamilyName in~ (Dev0530_threats)
| extend CompromisedEntity = tolower(CompromisedEntity)
| join kind=inner (DeviceInfo
    | extend DeviceName = tolower(DeviceName)
) on $left.CompromisedEntity == $right.DeviceName
| summarize by bin(TimeGenerated, 1d), DisplayName, ThreatName, ThreatFamilyName, PublicIP, AlertSeverity, Description, tostring(LoggedOnUsers), DeviceId, TenantId, CompromisedEntity, tostring(LoggedOnUsers), ProductName, Entities
| extend HostName = tostring(split(CompromisedEntity, ".")[0]), DomainIndex = toint(indexof(CompromisedEntity, '.'))
| extend HostNameDomain = iff(DomainIndex != -1, substring(CompromisedEntity, DomainIndex + 1), CompromisedEntity)
| project-away DomainIndex

description: |
  'This query looks for Microsoft Defender AV detections related to  Dev-0530 actors.
  In Microsoft Sentinel the SecurityAlerts table includes only the Device Name of the affected device, this query joins the DeviceInfo table to clearly connect other information such as Device group, ip, logged on users etc. This would allow the Microsoft Sentinel analyst to have more context related to the alert, if available.'  
metadata:
  source:
    kind: Community
  author:
    name: Microsoft Security Research
  categories:
    domains:
    - Security - Others
  support:
    tier: Community
triggerOperator: gt
requiredDataConnectors:
- dataTypes:
  - SecurityAlert
  connectorId: MicrosoftThreatProtection
query: |
  let Dev0530_threats = dynamic(["Trojan:Win32/SiennaPurple.A", "Ransom:Win32/SiennaBlue.A", "Ransom:Win32/SiennaBlue.B"]);
  SecurityAlert
  | where ProviderName == "MDATP"
  | extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)
  | extend ThreatFamilyName = tostring(parse_json(ExtendedProperties).ThreatFamilyName)
  | where ThreatName in~ (Dev0530_threats) or ThreatFamilyName in~ (Dev0530_threats)
  | extend CompromisedEntity = tolower(CompromisedEntity)
  | join kind=inner (DeviceInfo
      | extend DeviceName = tolower(DeviceName)
  ) on $left.CompromisedEntity == $right.DeviceName
  | summarize by bin(TimeGenerated, 1d), DisplayName, ThreatName, ThreatFamilyName, PublicIP, AlertSeverity, Description, tostring(LoggedOnUsers), DeviceId, TenantId, CompromisedEntity, tostring(LoggedOnUsers), ProductName, Entities
  | extend HostName = tostring(split(CompromisedEntity, ".")[0]), DomainIndex = toint(indexof(CompromisedEntity, '.'))
  | extend HostNameDomain = iff(DomainIndex != -1, substring(CompromisedEntity, DomainIndex + 1), CompromisedEntity)
  | project-away DomainIndex  
name: AV detections related to Dev-0530 actors
entityMappings:
- entityType: Host
  fieldMappings:
  - identifier: FullName
    columnName: CompromisedEntity
  - identifier: HostName
    columnName: HostName
  - identifier: DnsDomain
    columnName: HostNameDomain
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: PublicIP
kind: Scheduled
severity: High
relevantTechniques:
- T1486
tactics:
- Impact
queryFrequency: 1d
tags:
- Dev-0530 actors
version: 1.0.5
queryPeriod: 1d
triggerThreshold: 0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Detections/SecurityAlert/Dev-0530AVHits.yaml
id: 5f171045-88ab-4634-baae-a7b6509f483b

{
  "$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/5f171045-88ab-4634-baae-a7b6509f483b')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/5f171045-88ab-4634-baae-a7b6509f483b')]",
      "properties": {
        "alertRuleTemplateName": "5f171045-88ab-4634-baae-a7b6509f483b",
        "customDetails": null,
        "description": "'This query looks for Microsoft Defender AV detections related to  Dev-0530 actors.\nIn Microsoft Sentinel the SecurityAlerts table includes only the Device Name of the affected device, this query joins the DeviceInfo table to clearly connect other information such as Device group, ip, logged on users etc. This would allow the Microsoft Sentinel analyst to have more context related to the alert, if available.'\n",
        "displayName": "AV detections related to Dev-0530 actors",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "CompromisedEntity",
                "identifier": "FullName"
              },
              {
                "columnName": "HostName",
                "identifier": "HostName"
              },
              {
                "columnName": "HostNameDomain",
                "identifier": "DnsDomain"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "PublicIP",
                "identifier": "Address"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Detections/SecurityAlert/Dev-0530AVHits.yaml",
        "query": "let Dev0530_threats = dynamic([\"Trojan:Win32/SiennaPurple.A\", \"Ransom:Win32/SiennaBlue.A\", \"Ransom:Win32/SiennaBlue.B\"]);\nSecurityAlert\n| where ProviderName == \"MDATP\"\n| extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)\n| extend ThreatFamilyName = tostring(parse_json(ExtendedProperties).ThreatFamilyName)\n| where ThreatName in~ (Dev0530_threats) or ThreatFamilyName in~ (Dev0530_threats)\n| extend CompromisedEntity = tolower(CompromisedEntity)\n| join kind=inner (DeviceInfo\n    | extend DeviceName = tolower(DeviceName)\n) on $left.CompromisedEntity == $right.DeviceName\n| summarize by bin(TimeGenerated, 1d), DisplayName, ThreatName, ThreatFamilyName, PublicIP, AlertSeverity, Description, tostring(LoggedOnUsers), DeviceId, TenantId, CompromisedEntity, tostring(LoggedOnUsers), ProductName, Entities\n| extend HostName = tostring(split(CompromisedEntity, \".\")[0]), DomainIndex = toint(indexof(CompromisedEntity, '.'))\n| extend HostNameDomain = iff(DomainIndex != -1, substring(CompromisedEntity, DomainIndex + 1), CompromisedEntity)\n| project-away DomainIndex\n",
        "queryFrequency": "P1D",
        "queryPeriod": "P1D",
        "severity": "High",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Impact"
        ],
        "tags": [
          "Dev-0530 actors"
        ],
        "techniques": [
          "T1486"
        ],
        "templateVersion": "1.0.5",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}