Microsoft Sentinel Analytic Rules
cloudbrothers.infoAzure Sentinel RepoToggle Dark/Light/Auto modeToggle Dark/Light/Auto modeToggle Dark/Light/Auto modeBack to homepage

TIE LSASS Memory

Back
Id7851f57c-98b6-43c6-9747-9bb7cf11f21c
RulenameTIE LSASS Memory
DescriptionSearches for OS Credentials dumping attacks.
SeverityHigh
TacticsCredentialAccess
TechniquesT1003.001
Required data connectorsTenableIE
KindScheduled
Query frequency2h
Query period2h
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Tenable App/Analytic Rules/TIELSASSMemory.yaml
Version1.0.1
Arm template7851f57c-98b6-43c6-9747-9bb7cf11f21c.json
Deploy To Azure
// For the query to work properly, make sure you have imported the afad_parser.yaml parser into the workspace
// Retrieve the parser here: https://aka.ms/sentinel-TenableApp-afad-parser
// Then, create the Kusto Function with alias afad_parser
afad_parser
  | where MessageType == 2 and Codename == "OS Credential Dumping: LSASS Memory"
  | extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))
id: 7851f57c-98b6-43c6-9747-9bb7cf11f21c
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Tenable App/Analytic Rules/TIELSASSMemory.yaml
requiredDataConnectors:
- dataTypes:
  - Tenable_IE_CL
  connectorId: TenableIE
description: |
    'Searches for OS Credentials dumping attacks.'
severity: High
queryPeriod: 2h
kind: Scheduled
tactics:
- CredentialAccess
queryFrequency: 2h
query: |
  // For the query to work properly, make sure you have imported the afad_parser.yaml parser into the workspace
  // Retrieve the parser here: https://aka.ms/sentinel-TenableApp-afad-parser
  // Then, create the Kusto Function with alias afad_parser
  afad_parser
    | where MessageType == 2 and Codename == "OS Credential Dumping: LSASS Memory"
    | extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))  
version: 1.0.1
triggerThreshold: 0
name: TIE LSASS Memory
entityMappings:
- entityType: Host
  fieldMappings:
  - columnName: HostName
    identifier: HostName
  - columnName: DnsDomain
    identifier: DnsDomain
relevantTechniques:
- T1003.001
{
  "$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/7851f57c-98b6-43c6-9747-9bb7cf11f21c')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/7851f57c-98b6-43c6-9747-9bb7cf11f21c')]",
      "properties": {
        "alertRuleTemplateName": "7851f57c-98b6-43c6-9747-9bb7cf11f21c",
        "customDetails": null,
        "description": "'Searches for OS Credentials dumping attacks.'\n",
        "displayName": "TIE LSASS Memory",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "HostName",
                "identifier": "HostName"
              },
              {
                "columnName": "DnsDomain",
                "identifier": "DnsDomain"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Tenable App/Analytic Rules/TIELSASSMemory.yaml",
        "query": "// For the query to work properly, make sure you have imported the afad_parser.yaml parser into the workspace\n// Retrieve the parser here: https://aka.ms/sentinel-TenableApp-afad-parser\n// Then, create the Kusto Function with alias afad_parser\nafad_parser\n  | where MessageType == 2 and Codename == \"OS Credential Dumping: LSASS Memory\"\n  | extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))\n",
        "queryFrequency": "PT2H",
        "queryPeriod": "PT2H",
        "severity": "High",
        "subTechniques": [
          "T1003.001"
        ],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CredentialAccess"
        ],
        "techniques": [
          "T1003"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}