AutomationFlowsEmail & Gmail › Malicious File Detection & Response: Wazuh to Virustotal with Slack Alerts

Malicious File Detection & Response: Wazuh to Virustotal with Slack Alerts

ByRajneesh Gupta @rajneeshgupta on n8n.io

This workflow helps SOC teams automate the detection and reporting of potentially malicious files using Wazuh alerts, VirusTotal hash validation, and integrated summary/report generation. It's ideal for analysts who want instant context and communication for file-based threats —…

Webhook trigger★★★★☆ complexity12 nodesGmailService NowSlackHTTP Request
Email & Gmail Trigger: Webhook Nodes: 12 Complexity: ★★★★☆ Added:

This workflow corresponds to n8n.io template #5997 — we link there as the canonical source.

This workflow follows the Gmail → HTTP Request recipe pattern — see all workflows that pair these two integrations.

The workflow JSON

Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →

Download .json
{
  "id": "LS3DQMrTIzPpWEnp",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "name": "\u2705Wazuh Alert- Malicious File detection",
  "tags": [],
  "nodes": [
    {
      "id": "850ecc07-1698-4f8f-8bfd-d11690a5bcb3",
      "name": "file summary display",
      "type": "n8n-nodes-base.html",
      "position": [
        -220,
        560
      ],
      "parameters": {
        "html": "<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  <meta charset=\"UTF-8\">\n  <title>File Threat Summary</title>\n  <style>\n    body {\n      font-family: \"Segoe UI\", sans-serif;\n      background-color: #121212;\n      color: #f0f0f0;\n      padding: 20px;\n    }\n    .card {\n      background-color: #1e1e1e;\n      border-radius: 12px;\n      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);\n      padding: 20px;\n      max-width: 600px;\n      margin: auto;\n      border: 1px solid #333;\n    }\n    .long-text {\n      word-break: break-all;\n      overflow-wrap: break-word;\n      white-space: pre-wrap;\n      font-size: 0.9rem;\n      color: #e0e0e0;\n    }\n    h1 {\n      color: #00bfff;\n    }\n    .label {\n      font-weight: bold;\n      color: #c5e1a5;\n    }\n    .tag {\n      background-color: #333;\n      color: #c5cae9;\n      border-radius: 5px;\n      padding: 2px 6px;\n      margin: 3px 4px 3px 0;\n      display: inline-block;\n      font-size: 0.85rem;\n    }\n    .status-safe {\n      color: #00e676;\n    }\n    .status-suspicious {\n      color: #ff5252;\n    }\n    .timestamp {\n      margin-top: 20px;\n      font-size: 0.9rem;\n      color: #999;\n    }\n  </style>\n</head>\n<body>\n  <div class=\"card\">\n    <h1>\ud83e\uddea File Threat Summary</h1>\n    <p><span class=\"label\">File:</span> {{ $json.summary.Name }}</p>\n    <p><span class=\"label\">SHA256:</span> <span class=\"long-text\">{{ $json.summary.SHA256 }}</span></p>\n    <p><span class=\"label\">Reputation:</span> {{ $json.summary.Reputation }}</p>\n    <p><span class=\"label\">Threat Label:</span> {{ $json.summary.Description }}</p>\n    <p><span class=\"label\">Magic Signature:</span> {{ $json.summary.Magic }}</p>\n\n    <p><span class=\"label\">Status:</span> \n      <span class=\"{{ $json.summary.Status === 'Safe' ? 'status-safe' : 'status-suspicious' }}\">\n        {{ $json.summary.Status }}\n      </span>\n    </p>\n\n    <p class=\"label\">Analysis Stats:</p>\n    <ul>\n      <li>Malicious: {{ $json.summary.Malicious }}</li>\n      <li>Suspicious: {{ $json.summary.Suspicious }}</li>\n      <li>Harmless: {{ $json.summary.Harmless }}</li>\n      <li>Undetected: {{ $json.summary.Undetected }}</li>\n    </ul>\n\n    <p class=\"label\">Tags:</p>\n    <div>{{ $json.summary.Tags_HTML }}</div>\n\n  </div>\n  <div class=\"timestamp\">Generated at: {{ $json.summary.Generated_At }}</div>\n</body>\n</html>\n"
      },
      "typeVersion": 1.2
    },
    {
      "id": "082b96b1-acc1-40f6-8abe-15c516a8af10",
      "name": "Gmail1",
      "type": "n8n-nodes-base.gmail",
      "position": [
        20,
        560
      ],
      "parameters": {
        "sendTo": "user@example.com",
        "message": "={{ $json.html }}",
        "options": {},
        "subject": "Alert"
      },
      "credentials": {
        "gmailOAuth2": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 2.1
    },
    {
      "id": "d8efcbad-fd0e-4e75-86a9-7572e357de4f",
      "name": "Wazuh Alert",
      "type": "n8n-nodes-base.webhook",
      "position": [
        -1080,
        820
      ],
      "parameters": {
        "path": "file_validation",
        "options": {},
        "httpMethod": "POST"
      },
      "typeVersion": 2
    },
    {
      "id": "dabe00ea-820a-47df-b61b-8b5353ee7dbd",
      "name": "Extract IOCs",
      "type": "n8n-nodes-base.code",
      "position": [
        -860,
        820
      ],
      "parameters": {
        "jsCode": "const body = items[0].json.body || {};\nconst syscheck = body.syscheck || {};\nconst rule = body.rule || {};\n\nconst md5 = syscheck.md5_after || null;\nconst sha1 = syscheck.sha1_after || null;\nconst sha256 = syscheck.sha256_after || null;\nconst filePath = syscheck.path || null;\n\nconst description = rule.description || 'No description';\nconst agent = body.agent?.name || 'unknown';\nconst level = rule.level || 'unknown';\n\nreturn [{\n  json: {\n    type: 'file_alert',\n    md5,\n    sha1,\n    sha256,\n    file_path: filePath,\n    description,\n    agent,\n    level,\n    full_alert: body\n  }\n}];\n"
      },
      "typeVersion": 2
    },
    {
      "id": "4a121bd9-9a42-4b53-9bb7-7b75c6ca40ff",
      "name": "Generate File Summary",
      "type": "n8n-nodes-base.code",
      "position": [
        -420,
        820
      ],
      "parameters": {
        "jsCode": "const data = items[0].json.data?.attributes;\n\nconst summary = {\n  SHA256: items[0].json.data?.id || 'N/A',\n  Malicious: data?.last_analysis_stats?.malicious || 0,\n  Suspicious: data?.last_analysis_stats?.suspicious || 0,\n  Undetected: data?.last_analysis_stats?.undetected || 0,\n  Harmless: data?.last_analysis_stats?.harmless || 0,\n  Tags: (data?.tags || []).join(', '),\n  Tags_HTML: (data?.tags || []).map(tag =>\n    `<span class=\"tag\">${tag.trim()}</span>`\n  ).join(''),\n  Magic: data?.magic || 'N/A',\n  Name: data?.meaningful_name || 'Unknown',\n  Description: data?.popular_threat_classification?.suggested_threat_label || 'No Label',\n  Reputation: data?.reputation || 0,\n  Generated_At: new Date().toLocaleString('en-IN', {\n    timeZone: 'Asia/Kolkata',\n    dateStyle: 'short',\n    timeStyle: 'medium'\n  })\n};\n\n// Determine Status\nconst status = (summary.Malicious > 0 || summary.Suspicious > 0) ? 'Suspicious' : 'Safe';\nsummary.Status = status;\n\nreturn [\n  {\n    json: {\n      summary\n    }\n  }\n];\n"
      },
      "typeVersion": 2
    },
    {
      "id": "76b0d5b3-f12c-46ff-9488-704854673aea",
      "name": "Filter Suspicious Files",
      "type": "n8n-nodes-base.switch",
      "position": [
        -180,
        1100
      ],
      "parameters": {
        "rules": {
          "values": [
            {
              "conditions": {
                "options": {
                  "version": 2,
                  "leftValue": "",
                  "caseSensitive": true,
                  "typeValidation": "strict"
                },
                "combinator": "and",
                "conditions": [
                  {
                    "id": "c151e5cc-a506-4c2f-9c1a-7159592eb1b7",
                    "operator": {
                      "type": "string",
                      "operation": "equals"
                    },
                    "leftValue": "={{ $json.summary.Status }}",
                    "rightValue": "Suspicious"
                  }
                ]
              }
            }
          ]
        },
        "options": {}
      },
      "typeVersion": 3.2
    },
    {
      "id": "3d6a1922-e62a-4653-acee-bf1d26a7f9d3",
      "name": "Create File Incident",
      "type": "n8n-nodes-base.serviceNow",
      "position": [
        20,
        1000
      ],
      "parameters": {
        "resource": "incident",
        "operation": "create",
        "authentication": "basicAuth",
        "additionalFields": {},
        "short_description": "=Potential malicious file detected File '{{ $json.summary.Name }}' with SHA256 '{{ $json.summary.SHA256.slice(0, 12) }}...' flagged as '{{ $json.summary.Status }}' by VirusTotal. Threat classification: '{{ $json.summary.Description }}'."
      },
      "credentials": {
        "serviceNowBasicApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "8f60bfc2-382f-4ffd-b3d4-ecfd313d774b",
      "name": "Slack File Alert",
      "type": "n8n-nodes-base.slack",
      "position": [
        20,
        1200
      ],
      "parameters": {
        "text": "=\u26a0\ufe0f File Threat Detected  \n\ud83e\uddfe File: {{ $json.summary.Name || 'Unknown file' }} \n\ud83e\uddec SHA256: {{ $json.summary.SHA256.slice(0, 12) }}...\n\ud83d\udd0d Status: {{ $json.summary.Status }} \n\ud83d\udcdb Threat: {{ $json.summary.Description }} ",
        "select": "channel",
        "channelId": {
          "__rl": true,
          "mode": "list",
          "value": "C0913JPTZBJ",
          "cachedResultName": "n8n-trigger"
        },
        "otherOptions": {},
        "authentication": "oAuth2"
      },
      "credentials": {
        "slackOAuth2Api": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 2.3
    },
    {
      "id": "5f7eb5d0-2c96-4a5a-b50f-78343d71c8fb",
      "name": "VirusTotal File Hash Validation",
      "type": "n8n-nodes-base.httpRequest",
      "onError": "continueRegularOutput",
      "position": [
        -640,
        820
      ],
      "parameters": {
        "": "",
        "url": "=https://www.virustotal.com/api/v3/files/{{ $json.sha256 }}",
        "method": "GET",
        "options": {},
        "sendBody": false,
        "sendQuery": false,
        "curlImport": "",
        "infoMessage": "",
        "sendHeaders": false,
        "authentication": "predefinedCredentialType",
        "httpVariantWarning": "",
        "nodeCredentialType": "virusTotalApi",
        "provideSslCertificates": false
      },
      "credentials": {
        "virusTotalApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 4.2,
      "extendsCredential": "virusTotalApi"
    },
    {
      "id": "fe7e02b8-d305-4b70-91db-fd4e43daf3f7",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -1100,
        600
      ],
      "parameters": {
        "color": 4,
        "width": 360,
        "height": 200,
        "content": "## Alert Ingestion & Threat Intelligence\n- Receives file integrity alerts via webhook.\n- Extracts SHA256, MD5, filename, path, and agent info.\n- Prepares clean JSON data for threat validation.\n"
      },
      "typeVersion": 1
    },
    {
      "id": "ad135139-d360-4a2e-95da-8007b13aba0a",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -220,
        740
      ],
      "parameters": {
        "width": 360,
        "height": 220,
        "content": "## Alert Escalation & Analyst Notification\n- Routes alerts based on threat level (Safe or Suspicious).\n- Sends Slack alert and creates ServiceNow ticket if suspicious.\n- Emails formatted threat summary to analyst inbox.\n\n"
      },
      "typeVersion": 1
    },
    {
      "id": "a72c8256-0cc7-493c-9605-ba7cc6fd322a",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -700,
        600
      ],
      "parameters": {
        "width": 400,
        "height": 200,
        "content": "## VirusTotal Enrichment & Threat Summary\n- Validates file hash with VirusTotal API.\n- Gathers reputation, detection stats, threat label, and tags.\n- Generates a readable HTML summary with file context.\n"
      },
      "typeVersion": 1
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "0ae8f2a4-1a78-4c18-8d34-9189d04bbbf2",
  "connections": {
    "Wazuh Alert": {
      "main": [
        [
          {
            "node": "Extract IOCs",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Extract IOCs": {
      "main": [
        [
          {
            "node": "VirusTotal File Hash Validation",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "file summary display": {
      "main": [
        [
          {
            "node": "Gmail1",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Generate File Summary": {
      "main": [
        [
          {
            "node": "file summary display",
            "type": "main",
            "index": 0
          },
          {
            "node": "Filter Suspicious Files",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Filter Suspicious Files": {
      "main": [
        [
          {
            "node": "Slack File Alert",
            "type": "main",
            "index": 0
          },
          {
            "node": "Create File Incident",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "VirusTotal File Hash Validation": {
      "main": [
        [
          {
            "node": "Generate File Summary",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}

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About this workflow

This workflow helps SOC teams automate the detection and reporting of potentially malicious files using Wazuh alerts, VirusTotal hash validation, and integrated summary/report generation. It's ideal for analysts who want instant context and communication for file-based threats —…

Source: https://n8n.io/workflows/5997/ — original creator credit. Request a take-down →

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