Microsoft Sentinel Analytic Rules
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[Deprecated] - Denim Tsunami C2 Domains July 2022

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Idce02935c-cc67-4b77-9b96-93d9947e119a
Rulename[Deprecated] - Denim Tsunami C2 Domains July 2022
DescriptionThis query has been deprecated as the associated IoCs (Indicators of Compromise) are outdated and no longer relevant. To ensure effective threat detection, it is recommended to implement Microsoft’s Threat Intelligence solution, which enables matching your log data with the most up-to-date IoCs generated by Microsoft. This solution can be installed from the Microsoft Sentinel Content Hub if not currently deployed. More details on the Content Hub can be found here: https://learn.microsoft.com/azure/sentinel/sentinel-solutions-deploy
SeverityHigh
TacticsCommandAndControl
TechniquesT1071
Required data connectorsAzureMonitor(VMInsights)
DNS
MicrosoftThreatProtection
KindScheduled
Query frequency1d
Query period1d
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Legacy IOC based Threat Protection/Deprecated Analytic Rules/DenimTsunamiC2DomainsJuly2022.yaml
Version2.0.0
Arm templatece02935c-cc67-4b77-9b96-93d9947e119a.json
Deploy To Azure
let DomainNames = dynamic(["acrobatrelay.com", "finconsult.cc", "realmetaldns.com"]); 
(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 isnotempty(DNSName) 
| where DNSName  in~ (DomainNames) 
| extend IPAddress = RemoteIp 
), 
( 
 DeviceNetworkEvents 
| where isnotempty(RemoteUrl) 
| where RemoteUrl  has_any (DomainNames)  
| extend IPAddress = RemoteIP 
| extend Computer = DeviceName 
),
(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 
name: '[Deprecated] - Denim Tsunami C2 Domains July 2022'
status: Available
triggerThreshold: 0
severity: High
tactics:
- CommandAndControl
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Legacy IOC based Threat Protection/Deprecated Analytic Rules/DenimTsunamiC2DomainsJuly2022.yaml
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: AccountCustomEntity
    identifier: FullName
- entityType: Host
  fieldMappings:
  - columnName: HostCustomEntity
    identifier: HostName
- entityType: IP
  fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
queryPeriod: 1d
queryFrequency: 1d
version: 2.0.0
triggerOperator: gt
description: |
    'This query has been deprecated as the associated IoCs (Indicators of Compromise) are outdated and no longer relevant. To ensure effective threat detection, it is recommended to implement Microsoft's Threat Intelligence solution, which enables matching your log data with the most up-to-date IoCs generated by Microsoft. This solution can be installed from the Microsoft Sentinel Content Hub if not currently deployed. More details on the Content Hub can be found here: https://learn.microsoft.com/azure/sentinel/sentinel-solutions-deploy'
query: |
  let DomainNames = dynamic(["acrobatrelay.com", "finconsult.cc", "realmetaldns.com"]); 
  (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 isnotempty(DNSName) 
  | where DNSName  in~ (DomainNames) 
  | extend IPAddress = RemoteIp 
  ), 
  ( 
   DeviceNetworkEvents 
  | where isnotempty(RemoteUrl) 
  | where RemoteUrl  has_any (DomainNames)  
  | extend IPAddress = RemoteIP 
  | extend Computer = DeviceName 
  ),
  (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   
relevantTechniques:
- T1071
id: ce02935c-cc67-4b77-9b96-93d9947e119a
requiredDataConnectors:
- dataTypes:
  - VMConnection
  connectorId: AzureMonitor(VMInsights)
- dataTypes:
  - DnsEvents
  connectorId: DNS
- dataTypes:
  - DeviceNetworkEvents
  connectorId: MicrosoftThreatProtection
tags:
- Denim Tsunami
kind: Scheduled
{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2023-02-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/ce02935c-cc67-4b77-9b96-93d9947e119a')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/ce02935c-cc67-4b77-9b96-93d9947e119a')]",
      "properties": {
        "alertRuleTemplateName": "ce02935c-cc67-4b77-9b96-93d9947e119a",
        "customDetails": null,
        "description": "'This query has been deprecated as the associated IoCs (Indicators of Compromise) are outdated and no longer relevant. To ensure effective threat detection, it is recommended to implement Microsoft's Threat Intelligence solution, which enables matching your log data with the most up-to-date IoCs generated by Microsoft. This solution can be installed from the Microsoft Sentinel Content Hub if not currently deployed. More details on the Content Hub can be found here: https://learn.microsoft.com/azure/sentinel/sentinel-solutions-deploy'\n",
        "displayName": "[Deprecated] - Denim Tsunami C2 Domains July 2022",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "AccountCustomEntity",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "HostCustomEntity",
                "identifier": "HostName"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "IPCustomEntity",
                "identifier": "Address"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Legacy IOC based Threat Protection/Deprecated Analytic Rules/DenimTsunamiC2DomainsJuly2022.yaml",
        "query": "let DomainNames = dynamic([\"acrobatrelay.com\", \"finconsult.cc\", \"realmetaldns.com\"]); \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 isnotempty(DNSName) \n| where DNSName  in~ (DomainNames) \n| extend IPAddress = RemoteIp \n), \n( \n DeviceNetworkEvents \n| where isnotempty(RemoteUrl) \n| where RemoteUrl  has_any (DomainNames)  \n| extend IPAddress = RemoteIP \n| extend Computer = DeviceName \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",
        "severity": "High",
        "status": "Available",
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CommandAndControl"
        ],
        "tags": [
          "Denim Tsunami"
        ],
        "techniques": [
          "T1071"
        ],
        "templateVersion": "2.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}