Credential Dumping Tools - File Artifacts

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Id	32ffb19e-8ed8-40ed-87a0-1adb4746b7c4
Rulename	Credential Dumping Tools - File Artifacts
Description	This query detects the creation of credential dumping tools files. Several credential dumping tools export files with hardcoded file names. Ref: https://jpcertcc.github.io/ToolAnalysisResultSheet/
Severity	High
Tactics	CredentialAccess
Techniques	T1003.001
Required data connectors	SecurityEvents
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Attacker Tools Threat Protection Essentials/Analytic Rules/CredentialDumpingToolsFileArtifacts.yaml
Version	1.0.2
Arm template	32ffb19e-8ed8-40ed-87a0-1adb4746b7c4.json

KQL

// Enter a reference list of malicious file artifacts
let MaliciousFileArtifacts = dynamic (["lsass.dmp","test.pwd","lsremora.dll","lsremora64.dll","fgexec.exe","pwdump","kirbi","wce_ccache","wce_krbtkts","wceaux.dll","PwHashes","SAM.out","SECURITY.out","SYSTEM.out","NTDS.out" "DumpExt.dll","DumpSvc.exe","cachedump64.exe","cachedump.exe","pstgdump.exe","servpw64.exe","servpw.exe","pwdump.exe","fgdump-log"]);
Event
| where EventLog == "Microsoft-Windows-Sysmon/Operational" and EventID==11
| parse EventData with * 'TargetFilename">' TargetFilename "<" *
| where TargetFilename has_any (MaliciousFileArtifacts)
| parse EventData with * 'ProcessGuid">' ProcessGuid "<" * 'Image">' Image "<" *
| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated) by EventID, Computer, Image, ProcessGuid, TargetFilename
| extend HostName = split(Computer, '.', 0)[0], DnsDomain = strcat_array(array_slice(split(Computer, '.'), 1, -1), '.')

YAML

name: Credential Dumping Tools - File Artifacts
status: Available
triggerThreshold: 0
severity: High
tactics:
- CredentialAccess
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Attacker Tools Threat Protection Essentials/Analytic Rules/CredentialDumpingToolsFileArtifacts.yaml
entityMappings:
- entityType: File
  fieldMappings:
  - columnName: TargetFilename
    identifier: Name
- entityType: Host
  fieldMappings:
  - columnName: HostName
    identifier: HostName
  - columnName: DnsDomain
    identifier: DnsDomain
- entityType: Process
  fieldMappings:
  - columnName: Image
    identifier: CommandLine
queryPeriod: 1h
queryFrequency: 1h
version: 1.0.2
triggerOperator: gt
description: |
  'This query detects the creation of credential dumping tools files. Several credential dumping tools export files with hardcoded file names.
  Ref: https://jpcertcc.github.io/ToolAnalysisResultSheet/'  
query: |
  // Enter a reference list of malicious file artifacts
  let MaliciousFileArtifacts = dynamic (["lsass.dmp","test.pwd","lsremora.dll","lsremora64.dll","fgexec.exe","pwdump","kirbi","wce_ccache","wce_krbtkts","wceaux.dll","PwHashes","SAM.out","SECURITY.out","SYSTEM.out","NTDS.out" "DumpExt.dll","DumpSvc.exe","cachedump64.exe","cachedump.exe","pstgdump.exe","servpw64.exe","servpw.exe","pwdump.exe","fgdump-log"]);
  Event
  | where EventLog == "Microsoft-Windows-Sysmon/Operational" and EventID==11
  | parse EventData with * 'TargetFilename">' TargetFilename "<" *
  | where TargetFilename has_any (MaliciousFileArtifacts)
  | parse EventData with * 'ProcessGuid">' ProcessGuid "<" * 'Image">' Image "<" *
  | summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated) by EventID, Computer, Image, ProcessGuid, TargetFilename
  | extend HostName = split(Computer, '.', 0)[0], DnsDomain = strcat_array(array_slice(split(Computer, '.'), 1, -1), '.')  
relevantTechniques:
- T1003.001
id: 32ffb19e-8ed8-40ed-87a0-1adb4746b7c4
requiredDataConnectors:
- dataTypes:
  - Event
  connectorId: SecurityEvents
kind: Scheduled

ARM

{
  "$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/32ffb19e-8ed8-40ed-87a0-1adb4746b7c4')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/32ffb19e-8ed8-40ed-87a0-1adb4746b7c4')]",
      "properties": {
        "alertRuleTemplateName": "32ffb19e-8ed8-40ed-87a0-1adb4746b7c4",
        "customDetails": null,
        "description": "'This query detects the creation of credential dumping tools files. Several credential dumping tools export files with hardcoded file names.\nRef: https://jpcertcc.github.io/ToolAnalysisResultSheet/'\n",
        "displayName": "Credential Dumping Tools - File Artifacts",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "File",
            "fieldMappings": [
              {
                "columnName": "TargetFilename",
                "identifier": "Name"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "HostName",
                "identifier": "HostName"
              },
              {
                "columnName": "DnsDomain",
                "identifier": "DnsDomain"
              }
            ]
          },
          {
            "entityType": "Process",
            "fieldMappings": [
              {
                "columnName": "Image",
                "identifier": "CommandLine"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Attacker Tools Threat Protection Essentials/Analytic Rules/CredentialDumpingToolsFileArtifacts.yaml",
        "query": "// Enter a reference list of malicious file artifacts\nlet MaliciousFileArtifacts = dynamic ([\"lsass.dmp\",\"test.pwd\",\"lsremora.dll\",\"lsremora64.dll\",\"fgexec.exe\",\"pwdump\",\"kirbi\",\"wce_ccache\",\"wce_krbtkts\",\"wceaux.dll\",\"PwHashes\",\"SAM.out\",\"SECURITY.out\",\"SYSTEM.out\",\"NTDS.out\" \"DumpExt.dll\",\"DumpSvc.exe\",\"cachedump64.exe\",\"cachedump.exe\",\"pstgdump.exe\",\"servpw64.exe\",\"servpw.exe\",\"pwdump.exe\",\"fgdump-log\"]);\nEvent\n| where EventLog == \"Microsoft-Windows-Sysmon/Operational\" and EventID==11\n| parse EventData with * 'TargetFilename\">' TargetFilename \"<\" *\n| where TargetFilename has_any (MaliciousFileArtifacts)\n| parse EventData with * 'ProcessGuid\">' ProcessGuid \"<\" * 'Image\">' Image \"<\" *\n| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated) by EventID, Computer, Image, ProcessGuid, TargetFilename\n| extend HostName = split(Computer, '.', 0)[0], DnsDomain = strcat_array(array_slice(split(Computer, '.'), 1, -1), '.')\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "High",
        "status": "Available",
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CredentialAccess"
        ],
        "techniques": [
          "T1003"
        ],
        "templateVersion": "1.0.2",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}