ACTINIUM AV hits - Feb 2022

let iocs = externaldata(DateAdded:string,IoC:string,Type:string) [@"https://raw.githubusercontent.com/Azure/Azure-Sentinel/master/Sample%20Data/Feeds/ActiniumIOC.csv"] with (format="csv", ignoreFirstRecord=True);
let AVHits = (iocs | where Type =~ "AVDetection"| project IoC);
SecurityAlert
| where ProviderName == 'MDATP'
| extend ThreatName_ = tostring(parse_json(ExtendedProperties).ThreatName)
| where ThreatName_ has_any (AVHits)
| extend Directory = tostring(parse_json(Entities)[0].Directory), SHA256 = tostring(parse_json(tostring(parse_json(Entities)[0].FileHashes))[2].Value), FileName = tostring(parse_json(Entities)[0].Name), Hostname = tostring(parse_json(Entities)[6].FQDN)| extend AccountName = tostring(parse_json(tostring(parse_json(Entities)[6].LoggedOnUsers))[0].AccountName)
| project TimeGenerated, AlertName, ThreatName_, ProviderName, AlertSeverity, Description, RemediationSteps, ExtendedProperties, Entities, FileName,SHA256, Directory, Hostname, AccountName
| extend timestamp = TimeGenerated, HostCustomEntity = Hostname , AccountCustomEntity = AccountName,  FileHashCustomEntity = SHA256

version: 1.0.0
status: Available
queryFrequency: 6h
requiredDataConnectors:
- connectorId: MicrosoftDefenderAdvancedThreatProtection
  dataTypes:
  - SecurityAlert (MDATP)
entityMappings:
- fieldMappings:
  - columnName: AccountCustomEntity
    identifier: FullName
  entityType: Account
- fieldMappings:
  - columnName: HostCustomEntity
    identifier: FullName
  entityType: Host
- fieldMappings:
  - columnName: FileHashType
    identifier: Algorithm
  - columnName: FileHashCustomEntity
    identifier: Value
  entityType: FileHash
kind: Scheduled
queryPeriod: 6h
severity: High
query: |
  let iocs = externaldata(DateAdded:string,IoC:string,Type:string) [@"https://raw.githubusercontent.com/Azure/Azure-Sentinel/master/Sample%20Data/Feeds/ActiniumIOC.csv"] with (format="csv", ignoreFirstRecord=True);
  let AVHits = (iocs | where Type =~ "AVDetection"| project IoC);
  SecurityAlert
  | where ProviderName == 'MDATP'
  | extend ThreatName_ = tostring(parse_json(ExtendedProperties).ThreatName)
  | where ThreatName_ has_any (AVHits)
  | extend Directory = tostring(parse_json(Entities)[0].Directory), SHA256 = tostring(parse_json(tostring(parse_json(Entities)[0].FileHashes))[2].Value), FileName = tostring(parse_json(Entities)[0].Name), Hostname = tostring(parse_json(Entities)[6].FQDN)| extend AccountName = tostring(parse_json(tostring(parse_json(Entities)[6].LoggedOnUsers))[0].AccountName)
  | project TimeGenerated, AlertName, ThreatName_, ProviderName, AlertSeverity, Description, RemediationSteps, ExtendedProperties, Entities, FileName,SHA256, Directory, Hostname, AccountName
  | extend timestamp = TimeGenerated, HostCustomEntity = Hostname , AccountCustomEntity = AccountName,  FileHashCustomEntity = SHA256  
tags:
- ACTINIUM
triggerOperator: gt
id: 18dbdc22-b69f-4109-9e39-723d9465f45f
description: |
    'Identifies a match in the Security Alert table for MDATP hits related to the ACTINIUM actor'
triggerThreshold: 0
name: ACTINIUM AV hits - Feb 2022
relevantTechniques:
- T1137
tactics:
- Persistence
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MicrosoftDefenderForEndpoint/Analytic Rules/ActiniumAVHits.yaml

{
  "$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/18dbdc22-b69f-4109-9e39-723d9465f45f')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/18dbdc22-b69f-4109-9e39-723d9465f45f')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01",
      "properties": {
        "displayName": "ACTINIUM AV hits - Feb 2022",
        "description": "'Identifies a match in the Security Alert table for MDATP hits related to the ACTINIUM actor'\n",
        "severity": "High",
        "enabled": true,
        "query": "let iocs = externaldata(DateAdded:string,IoC:string,Type:string) [@\"https://raw.githubusercontent.com/Azure/Azure-Sentinel/master/Sample%20Data/Feeds/ActiniumIOC.csv\"] with (format=\"csv\", ignoreFirstRecord=True);\nlet AVHits = (iocs | where Type =~ \"AVDetection\"| project IoC);\nSecurityAlert\n| where ProviderName == 'MDATP'\n| extend ThreatName_ = tostring(parse_json(ExtendedProperties).ThreatName)\n| where ThreatName_ has_any (AVHits)\n| extend Directory = tostring(parse_json(Entities)[0].Directory), SHA256 = tostring(parse_json(tostring(parse_json(Entities)[0].FileHashes))[2].Value), FileName = tostring(parse_json(Entities)[0].Name), Hostname = tostring(parse_json(Entities)[6].FQDN)| extend AccountName = tostring(parse_json(tostring(parse_json(Entities)[6].LoggedOnUsers))[0].AccountName)\n| project TimeGenerated, AlertName, ThreatName_, ProviderName, AlertSeverity, Description, RemediationSteps, ExtendedProperties, Entities, FileName,SHA256, Directory, Hostname, AccountName\n| extend timestamp = TimeGenerated, HostCustomEntity = Hostname , AccountCustomEntity = AccountName,  FileHashCustomEntity = SHA256\n",
        "queryFrequency": "PT6H",
        "queryPeriod": "PT6H",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Persistence"
        ],
        "techniques": [
          "T1137"
        ],
        "alertRuleTemplateName": "18dbdc22-b69f-4109-9e39-723d9465f45f",
        "customDetails": null,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "identifier": "FullName",
                "columnName": "AccountCustomEntity"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "identifier": "FullName",
                "columnName": "HostCustomEntity"
              }
            ]
          },
          {
            "entityType": "FileHash",
            "fieldMappings": [
              {
                "identifier": "Algorithm",
                "columnName": "FileHashType"
              },
              {
                "identifier": "Value",
                "columnName": "FileHashCustomEntity"
              }
            ]
          }
        ],
        "tags": [
          "ACTINIUM"
        ],
        "status": "Available",
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MicrosoftDefenderForEndpoint/Analytic Rules/ActiniumAVHits.yaml",
        "templateVersion": "1.0.0"
      }
    }
  ]
}