AV detections related to SpringShell Vulnerability

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Id	3bd33158-3f0b-47e3-a50f-7c20a1b88038
Rulename	AV detections related to SpringShell Vulnerability
Description	This query looks for Microsoft Defender AV detections related to SpringShell Vulnerability. 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. Reference: https://www.microsoft.com/security/blog/2022/04/04/springshell-rce-vulnerability-guidance-for-protecting-against-and-detecting-cve-2022-22965/
Severity	High
Tactics	InitialAccess
Techniques	T1190
Required data connectors	MicrosoftThreatProtection
Kind	Scheduled
Query frequency	1d
Query period	1d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft 365 Defender/Analytic Rules/AVSpringShell.yaml
Version	1.0.1
Arm template	3bd33158-3f0b-47e3-a50f-7c20a1b88038.json

KQL

let SpringShell_threats = dynamic(["Trojan:Python/SpringShellExpl", "Exploit:Python/SpringShell", "Backdoor:PHP/Remoteshell.V", "SpringShell"]);
DeviceInfo
| extend DeviceName = tolower(DeviceName)
| join kind=inner ( SecurityAlert
| where ProviderName == "MDATP"
| extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)
| extend ThreatFamilyName = tostring(parse_json(ExtendedProperties).ThreatFamilyName)
| where ThreatName in~ (SpringShell_threats) or ThreatFamilyName in~ (SpringShell_threats)
| extend CompromisedEntity = tolower(CompromisedEntity)
) on $left.DeviceName == $right.CompromisedEntity
| summarize by DisplayName, ThreatName, ThreatFamilyName, PublicIP, AlertSeverity, Description, tostring(LoggedOnUsers), DeviceId, TenantId , bin(TimeGenerated, 1d), CompromisedEntity, tostring(LoggedOnUsers), ProductName, Entities

YAML

name: AV detections related to SpringShell Vulnerability
query: |
  let SpringShell_threats = dynamic(["Trojan:Python/SpringShellExpl", "Exploit:Python/SpringShell", "Backdoor:PHP/Remoteshell.V", "SpringShell"]);
  DeviceInfo
  | extend DeviceName = tolower(DeviceName)
  | join kind=inner ( SecurityAlert
  | where ProviderName == "MDATP"
  | extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)
  | extend ThreatFamilyName = tostring(parse_json(ExtendedProperties).ThreatFamilyName)
  | where ThreatName in~ (SpringShell_threats) or ThreatFamilyName in~ (SpringShell_threats)
  | extend CompromisedEntity = tolower(CompromisedEntity)
  ) on $left.DeviceName == $right.CompromisedEntity
  | summarize by DisplayName, ThreatName, ThreatFamilyName, PublicIP, AlertSeverity, Description, tostring(LoggedOnUsers), DeviceId, TenantId , bin(TimeGenerated, 1d), CompromisedEntity, tostring(LoggedOnUsers), ProductName, Entities  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft 365 Defender/Analytic Rules/AVSpringShell.yaml
queryFrequency: 1d
triggerThreshold: 0
requiredDataConnectors:
- dataTypes:
  - SecurityAlert
  connectorId: MicrosoftThreatProtection
version: 1.0.1
status: Available
queryPeriod: 1d
id: 3bd33158-3f0b-47e3-a50f-7c20a1b88038
triggerOperator: gt
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: CompromisedEntity
  entityType: Host
- fieldMappings:
  - identifier: Address
    columnName: PublicIP
  entityType: IP
tags:
- CVE-2022-22965
- SpringShell
- Spring4Shell
relevantTechniques:
- T1190
severity: High
description: |
  'This query looks for Microsoft Defender AV detections related to SpringShell Vulnerability. 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.
   Reference: https://www.microsoft.com/security/blog/2022/04/04/springshell-rce-vulnerability-guidance-for-protecting-against-and-detecting-cve-2022-22965/'  
kind: Scheduled
tactics:
- InitialAccess

ARM

{
  "$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/3bd33158-3f0b-47e3-a50f-7c20a1b88038')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/3bd33158-3f0b-47e3-a50f-7c20a1b88038')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01",
      "properties": {
        "displayName": "AV detections related to SpringShell Vulnerability",
        "description": "'This query looks for Microsoft Defender AV detections related to SpringShell Vulnerability. In Microsoft Sentinel the SecurityAlerts table includes only the Device Name of the affected device, \n 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 Reference: https://www.microsoft.com/security/blog/2022/04/04/springshell-rce-vulnerability-guidance-for-protecting-against-and-detecting-cve-2022-22965/'\n",
        "severity": "High",
        "enabled": true,
        "query": "let SpringShell_threats = dynamic([\"Trojan:Python/SpringShellExpl\", \"Exploit:Python/SpringShell\", \"Backdoor:PHP/Remoteshell.V\", \"SpringShell\"]);\nDeviceInfo\n| extend DeviceName = tolower(DeviceName)\n| join kind=inner ( SecurityAlert\n| where ProviderName == \"MDATP\"\n| extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)\n| extend ThreatFamilyName = tostring(parse_json(ExtendedProperties).ThreatFamilyName)\n| where ThreatName in~ (SpringShell_threats) or ThreatFamilyName in~ (SpringShell_threats)\n| extend CompromisedEntity = tolower(CompromisedEntity)\n) on $left.DeviceName == $right.CompromisedEntity\n| summarize by DisplayName, ThreatName, ThreatFamilyName, PublicIP, AlertSeverity, Description, tostring(LoggedOnUsers), DeviceId, TenantId , bin(TimeGenerated, 1d), CompromisedEntity, tostring(LoggedOnUsers), ProductName, Entities\n",
        "queryFrequency": "P1D",
        "queryPeriod": "P1D",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess"
        ],
        "techniques": [
          "T1190"
        ],
        "alertRuleTemplateName": "3bd33158-3f0b-47e3-a50f-7c20a1b88038",
        "customDetails": null,
        "entityMappings": [
          {
            "fieldMappings": [
              {
                "identifier": "FullName",
                "columnName": "CompromisedEntity"
              }
            ],
            "entityType": "Host"
          },
          {
            "fieldMappings": [
              {
                "identifier": "Address",
                "columnName": "PublicIP"
              }
            ],
            "entityType": "IP"
          }
        ],
        "tags": [
          "CVE-2022-22965",
          "SpringShell",
          "Spring4Shell"
        ],
        "status": "Available",
        "templateVersion": "1.0.1",
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft 365 Defender/Analytic Rules/AVSpringShell.yaml"
      }
    }
  ]
}