LaZagne Credential Theft

DeviceProcessEvents 
| where FileName =~ 'reg.exe'
| where ProcessCommandLine has_all('save','hklm','sam')
| project DeviceId, DeviceName, TimeGenerated, InitiatingProcessId, InitiatingProcessFileName, ProcessId, FileName, ProcessCommandLine
| extend HostName = iff(DeviceName has '.', substring(DeviceName, 0, indexof(DeviceName, '.')), DeviceName)
| extend DnsDomain = iff(DeviceName has '.', substring(DeviceName, indexof(DeviceName, '.') + 1), "")

relevantTechniques:
- T1003
name: LaZagne Credential Theft
requiredDataConnectors:
- dataTypes:
  - DeviceProcessEvents
  connectorId: MicrosoftThreatProtection
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: DeviceName
  - identifier: HostName
    columnName: HostName
  - identifier: DnsDomain
    columnName: DnsDomain
  entityType: Host
- fieldMappings:
  - identifier: ProcessId
    columnName: ProcessId
  - identifier: CommandLine
    columnName: ProcessCommandLine
  entityType: Process
triggerThreshold: 0
id: 7d0d3050-8dac-4b83-bfae-902f7dc0c21c
tactics:
- CredentialAccess
version: 1.0.0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Defender XDR/Analytic Rules/Ransomware/LaZagneCredTheft.yaml
queryPeriod: 1h
kind: Scheduled
queryFrequency: 1h
severity: Medium
status: Available
description: |
    LaZagne is a popular open-source tool used to recover passwords stored on a local computer. It has been used in ransomware attacks to steal credentials and escalate privileges. This query looks for the execution of LaZagne.
query: |
  DeviceProcessEvents 
  | where FileName =~ 'reg.exe'
  | where ProcessCommandLine has_all('save','hklm','sam')
  | project DeviceId, DeviceName, TimeGenerated, InitiatingProcessId, InitiatingProcessFileName, ProcessId, FileName, ProcessCommandLine
  | extend HostName = iff(DeviceName has '.', substring(DeviceName, 0, indexof(DeviceName, '.')), DeviceName)
  | extend DnsDomain = iff(DeviceName has '.', substring(DeviceName, indexof(DeviceName, '.') + 1), "")  
triggerOperator: gt

{
  "$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/7d0d3050-8dac-4b83-bfae-902f7dc0c21c')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/7d0d3050-8dac-4b83-bfae-902f7dc0c21c')]",
      "properties": {
        "alertRuleTemplateName": "7d0d3050-8dac-4b83-bfae-902f7dc0c21c",
        "customDetails": null,
        "description": "LaZagne is a popular open-source tool used to recover passwords stored on a local computer. It has been used in ransomware attacks to steal credentials and escalate privileges. This query looks for the execution of LaZagne.\n",
        "displayName": "LaZagne Credential Theft",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "DeviceName",
                "identifier": "FullName"
              },
              {
                "columnName": "HostName",
                "identifier": "HostName"
              },
              {
                "columnName": "DnsDomain",
                "identifier": "DnsDomain"
              }
            ]
          },
          {
            "entityType": "Process",
            "fieldMappings": [
              {
                "columnName": "ProcessId",
                "identifier": "ProcessId"
              },
              {
                "columnName": "ProcessCommandLine",
                "identifier": "CommandLine"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Defender XDR/Analytic Rules/Ransomware/LaZagneCredTheft.yaml",
        "query": "DeviceProcessEvents \n| where FileName =~ 'reg.exe'\n| where ProcessCommandLine has_all('save','hklm','sam')\n| project DeviceId, DeviceName, TimeGenerated, InitiatingProcessId, InitiatingProcessFileName, ProcessId, FileName, ProcessCommandLine\n| extend HostName = iff(DeviceName has '.', substring(DeviceName, 0, indexof(DeviceName, '.')), DeviceName)\n| extend DnsDomain = iff(DeviceName has '.', substring(DeviceName, indexof(DeviceName, '.') + 1), \"\")\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CredentialAccess"
        ],
        "techniques": [
          "T1003"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}