Microsoft Sentinel Analytic Rules
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Star Blizzard C2 Domains August 2022

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Id2149d9bb-8298-444c-8f99-f7bf0274dd05
RulenameStar Blizzard C2 Domains August 2022
DescriptionIdentifies a match across various data feeds for domains related to an actor tracked by Microsoft as Star Blizzard.
SeverityHigh
TacticsInitialAccess
TechniquesT1566
Required data connectorsAzureFirewall
AzureMonitor(VMInsights)
CiscoASA
MicrosoftThreatProtection
PaloAltoNetworks
KindScheduled
Query frequency1d
Query period1d
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Detections/MultipleDataSources/StarBlizzardDomainsAugust2022.yaml
Version1.0.2
Arm template2149d9bb-8298-444c-8f99-f7bf0274dd05.json
Deploy To Azure
let iocs = externaldata(DateAdded:string,IoC:string,Type:string) [@"https://raw.githubusercontent.com/Azure/Azure-Sentinel/master/Sample%20Data/Feeds/SEABORGIUMIOC.csv"] with (format="csv", ignoreFirstRecord=True);
let DomainNames = (iocs | where Type =~ "domainname"| project IoC);
(union isfuzzy=true 
(CommonSecurityLog  
| parse Message with * '(' DNSName ')' *  
| where DNSName in~ (DomainNames) 
| extend Account = SourceUserID, Computer = DeviceName, IPAddress =  DestinationIP 
), 
(_Im_Dns (domain_has_any=DomainNames)
| extend DNSName = DnsQuery 
| extend IPAddress =  SrcIpAddr, Computer = Dvc
), 
(_Im_WebSession (url_has_any=DomainNames)
| extend DNSName = tostring(parse_url(Url)["Host"])
| extend IPAddress =  SrcIpAddr, Computer = Dvc
), 
(VMConnection  
| parse RemoteDnsCanonicalNames with * '["' DNSName '"]' * 
| where DNSName  in~ (DomainNames) 
| extend IPAddress = RemoteIp 
), 
(DeviceNetworkEvents 
| where RemoteUrl  has_any (DomainNames)  
| extend IPAddress = RemoteIP 
| extend Computer = DeviceName 
),
(EmailUrlInfo
| where Url has_any (DomainNames) 
| join (EmailEvents 
| where EmailDirection == "Inbound" ) on NetworkMessageId 
| extend IPAddress = SenderIPv4 
| extend Account = RecipientEmailAddress 
),
(AzureDiagnostics 
| where ResourceType == "AZUREFIREWALLS"
| where Category == "AzureFirewallApplicationRule"
| parse msg_s with Protocol 'request from ' SourceHost ':' SourcePort 'to ' DestinationHost ':' DestinationPort '. Action:' Action
| where isnotempty(DestinationHost)
| where DestinationHost has_any (DomainNames)  
| extend DNSName = DestinationHost 
| extend IPAddress = SourceHost
) 
) 
| extend timestamp = TimeGenerated, AccountCustomEntity = Account, HostCustomEntity = Computer, IPCustomEntity = IPAddress 
kind: Scheduled
metadata:
  support:
    tier: Community
  categories:
    domains:
    - Security - Threat Intelligence
  source:
    kind: Community
  author:
    name: Ajeet Prakash
severity: High
tags:
- Star Blizzard
- SchemaVersion: 0.1.1
  Schema: ASIMDns
name: Star Blizzard C2 Domains August 2022
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: AccountCustomEntity
    identifier: FullName
- entityType: Host
  fieldMappings:
  - columnName: HostCustomEntity
    identifier: HostName
- entityType: IP
  fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
relevantTechniques:
- T1566
queryFrequency: 1d
triggerThreshold: 0
queryPeriod: 1d
description: |
    'Identifies a match across various data feeds for domains related to an actor tracked by Microsoft as Star Blizzard.'
id: 2149d9bb-8298-444c-8f99-f7bf0274dd05
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Detections/MultipleDataSources/StarBlizzardDomainsAugust2022.yaml
version: 1.0.2
tactics:
- InitialAccess
query: |
  let iocs = externaldata(DateAdded:string,IoC:string,Type:string) [@"https://raw.githubusercontent.com/Azure/Azure-Sentinel/master/Sample%20Data/Feeds/SEABORGIUMIOC.csv"] with (format="csv", ignoreFirstRecord=True);
  let DomainNames = (iocs | where Type =~ "domainname"| project IoC);
  (union isfuzzy=true 
  (CommonSecurityLog  
  | parse Message with * '(' DNSName ')' *  
  | where DNSName in~ (DomainNames) 
  | extend Account = SourceUserID, Computer = DeviceName, IPAddress =  DestinationIP 
  ), 
  (_Im_Dns (domain_has_any=DomainNames)
  | extend DNSName = DnsQuery 
  | extend IPAddress =  SrcIpAddr, Computer = Dvc
  ), 
  (_Im_WebSession (url_has_any=DomainNames)
  | extend DNSName = tostring(parse_url(Url)["Host"])
  | extend IPAddress =  SrcIpAddr, Computer = Dvc
  ), 
  (VMConnection  
  | parse RemoteDnsCanonicalNames with * '["' DNSName '"]' * 
  | where DNSName  in~ (DomainNames) 
  | extend IPAddress = RemoteIp 
  ), 
  (DeviceNetworkEvents 
  | where RemoteUrl  has_any (DomainNames)  
  | extend IPAddress = RemoteIP 
  | extend Computer = DeviceName 
  ),
  (EmailUrlInfo
  | where Url has_any (DomainNames) 
  | join (EmailEvents 
  | where EmailDirection == "Inbound" ) on NetworkMessageId 
  | extend IPAddress = SenderIPv4 
  | extend Account = RecipientEmailAddress 
  ),
  (AzureDiagnostics 
  | where ResourceType == "AZUREFIREWALLS"
  | where Category == "AzureFirewallApplicationRule"
  | parse msg_s with Protocol 'request from ' SourceHost ':' SourcePort 'to ' DestinationHost ':' DestinationPort '. Action:' Action
  | where isnotempty(DestinationHost)
  | where DestinationHost has_any (DomainNames)  
  | extend DNSName = DestinationHost 
  | extend IPAddress = SourceHost
  ) 
  ) 
  | extend timestamp = TimeGenerated, AccountCustomEntity = Account, HostCustomEntity = Computer, IPCustomEntity = IPAddress   
requiredDataConnectors:
- dataTypes:
  - VMConnection
  connectorId: AzureMonitor(VMInsights)
- dataTypes:
  - CommonSecurityLog
  connectorId: CiscoASA
- dataTypes:
  - CommonSecurityLog
  connectorId: PaloAltoNetworks
- dataTypes:
  - DeviceNetworkEvents
  - EmailUrlInfo
  - EmailEvents
  connectorId: MicrosoftThreatProtection
- dataTypes:
  - AzureDiagnostics
  connectorId: AzureFirewall
triggerOperator: gt
{
  "$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/2149d9bb-8298-444c-8f99-f7bf0274dd05')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/2149d9bb-8298-444c-8f99-f7bf0274dd05')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01-preview",
      "properties": {
        "displayName": "Star Blizzard C2 Domains August 2022",
        "description": "'Identifies a match across various data feeds for domains related to an actor tracked by Microsoft as Star Blizzard.'\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/SEABORGIUMIOC.csv\"] with (format=\"csv\", ignoreFirstRecord=True);\nlet DomainNames = (iocs | where Type =~ \"domainname\"| project IoC);\n(union isfuzzy=true \n(CommonSecurityLog  \n| parse Message with * '(' DNSName ')' *  \n| where DNSName in~ (DomainNames) \n| extend Account = SourceUserID, Computer = DeviceName, IPAddress =  DestinationIP \n), \n(_Im_Dns (domain_has_any=DomainNames)\n| extend DNSName = DnsQuery \n| extend IPAddress =  SrcIpAddr, Computer = Dvc\n), \n(_Im_WebSession (url_has_any=DomainNames)\n| extend DNSName = tostring(parse_url(Url)[\"Host\"])\n| extend IPAddress =  SrcIpAddr, Computer = Dvc\n), \n(VMConnection  \n| parse RemoteDnsCanonicalNames with * '[\"' DNSName '\"]' * \n| where DNSName  in~ (DomainNames) \n| extend IPAddress = RemoteIp \n), \n(DeviceNetworkEvents \n| where RemoteUrl  has_any (DomainNames)  \n| extend IPAddress = RemoteIP \n| extend Computer = DeviceName \n),\n(EmailUrlInfo\n| where Url has_any (DomainNames) \n| join (EmailEvents \n| where EmailDirection == \"Inbound\" ) on NetworkMessageId \n| extend IPAddress = SenderIPv4 \n| extend Account = RecipientEmailAddress \n),\n(AzureDiagnostics \n| where ResourceType == \"AZUREFIREWALLS\"\n| where Category == \"AzureFirewallApplicationRule\"\n| parse msg_s with Protocol 'request from ' SourceHost ':' SourcePort 'to ' DestinationHost ':' DestinationPort '. Action:' Action\n| where isnotempty(DestinationHost)\n| where DestinationHost has_any (DomainNames)  \n| extend DNSName = DestinationHost \n| extend IPAddress = SourceHost\n) \n) \n| extend timestamp = TimeGenerated, AccountCustomEntity = Account, HostCustomEntity = Computer, IPCustomEntity = IPAddress \n",
        "queryFrequency": "P1D",
        "queryPeriod": "P1D",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess"
        ],
        "techniques": [
          "T1566"
        ],
        "alertRuleTemplateName": "2149d9bb-8298-444c-8f99-f7bf0274dd05",
        "customDetails": null,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "identifier": "FullName",
                "columnName": "AccountCustomEntity"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "identifier": "HostName",
                "columnName": "HostCustomEntity"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "identifier": "Address",
                "columnName": "IPCustomEntity"
              }
            ]
          }
        ],
        "templateVersion": "1.0.2",
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Detections/MultipleDataSources/StarBlizzardDomainsAugust2022.yaml",
        "tags": [
          "Star Blizzard",
          {
            "Schema": "ASIMDns",
            "SchemaVersion": "0.1.1"
          }
        ]
      }
    }
  ]
}