Ransomware Detection with Claude AI & Slack

The workflow JSON

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{
  "id": "IgdddfLCX52CIPYI",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "name": "AI Ransomware Early Warning System",
  "tags": [],
  "nodes": [
    {
      "id": "e5cb47f0-801e-4024-b9bb-6739dbe61534",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        176,
        -336
      ],
      "parameters": {
        "width": 900,
        "height": 1994,
        "content": "## AI Ransomware Early Warning System\n\nThis workflow provides real-time detection of ransomware encryption patterns using Claude AI, with automated system isolation and incident response.\n\n### How it works\n\n1. **File System Monitoring** - Continuously monitors file operations (create, modify, rename, delete) across critical directories\n2. **Behavior Pattern Collection** - Aggregates file operation metrics in 30-second windows (entropy changes, extension changes, I/O velocity)\n3. **AI Threat Analysis** - Claude AI analyzes patterns against known ransomware behaviors (mass encryption, shadow copy deletion, etc.)\n4. **Threat Scoring & Classification** - Assigns threat scores (0-100) and classifies attack types (crypto-locker, wiper, etc.)\n5. **Auto-Isolation Decision** - Determines if immediate network isolation is required based on confidence thresholds\n6. **System Quarantine** - Executes automated isolation: disable network adapters, block shares, kill suspicious processes\n7. **Forensic Snapshot** - Captures system state, process tree, network connections, and file operation logs\n8. **Incident Response Alert** - Notifies SOC team with detailed threat intelligence and recommended actions\n9. **Evidence Preservation** - Stores forensic data and AI analysis in SIEM for investigation\n\n### Detection Capabilities\n\n- **Entropy Analysis**: Detects high-entropy file creation (encrypted data signature)\n- **Extension Scanning**: Identifies suspicious extension changes (.docx \u2192 .locked, .encrypted, .crypted)\n- **I/O Velocity**: Flags abnormal file modification rates (>100 files/min)\n- **Shadow Copy Deletion**: Detects vssadmin.exe / wmic.exe shadow copy deletion attempts\n- **Ransom Note Detection**: Identifies README.txt, HOW_TO_DECRYPT.html creation patterns\n- **Lateral Movement**: Monitors SMB/RDP connection spikes from infected hosts\n- **Process Behavior**: Analyzes suspicious parent-child process relationships\n\n### Setup Steps\n\n1. Import workflow into n8n\n2. Configure credentials:\n   - **Anthropic API** - Claude AI for threat analysis\n   - **Windows Event Collector / Sysmon** - File system event source\n   - **EDR API** (CrowdStrike/Defender/SentinelOne) - For isolation commands\n   - **SIEM API** (Splunk/Elastic) - For log forwarding\n   - **Slack/PagerDuty** - For SOC alerts\n3. Install file system watcher on monitored endpoints (sysmon, osquery, or auditd)\n4. Configure isolation thresholds (default: threat_score >= 75)\n5. Test isolation procedure in sandbox environment\n6. Activate workflow\n\n### Sample Detection Event\n```json\n{\n  \"hostname\": \"DESKTOP-WKS-042\",\n  \"username\": \"jdoe\",\n  \"timestamp\": \"2025-02-25T14:23:17Z\",\n  \"detection_window_seconds\": 30,\n  \"file_operations\": {\n    \"files_modified\": 247,\n    \"files_renamed\": 189,\n    \"files_created\": 58,\n    \"files_deleted\": 31,\n    \"avg_entropy_increase\": 7.89,\n    \"suspicious_extensions\": [\".locked\", \".crypted\", \".encrypted\"],\n    \"ransom_notes_created\": [\"README_DECRYPT.txt\", \"HOW_TO_RECOVER.html\"]\n  },\n  \"process_activity\": {\n    \"high_io_processes\": [\n      {\"name\": \"explorer.exe\", \"pid\": 4782, \"io_rate\": \"523 ops/sec\"},\n      {\"name\": \"svchost.exe\", \"pid\": 2194, \"io_rate\": \"412 ops/sec\"}\n    ],\n    \"suspicious_commands\": [\n      \"vssadmin.exe delete shadows /all /quiet\",\n      \"wmic shadowcopy delete\",\n      \"bcdedit /set {default} recoveryenabled no\"\n    ]\n  },\n  \"network_activity\": {\n    \"c2_connections\": [\n      {\"ip\": \"185.220.101.32\", \"port\": 443, \"country\": \"RU\"},\n      {\"ip\": \"194.165.16.85\", \"port\": 8443, \"country\": \"NL\"}\n    ],\n    \"lateral_movement\": [\n      {\"target\": \"FILE-SERVER-01\", \"protocol\": \"SMB\", \"status\": \"success\"},\n      {\"target\": \"DB-SERVER-03\", \"protocol\": \"RDP\", \"status\": \"failed\"}\n    ]\n  }\n}\n```\n\n### Threat Intelligence Sources\n- MITRE ATT&CK Framework (T1486 - Data Encrypted for Impact, T1490 - Inhibit System Recovery)\n- Known ransomware families: LockBit, BlackCat/ALPHV, Royal, Play, Cl0p\n- File extension IOCs from ransomware tracking feeds\n- Behavioral signatures from recent campaigns\n\n### Compliance & Forensics\n- **Chain of Custody**: All isolation actions logged with timestamps and justifications\n- **NIST CSF Alignment**: DE.CM-7 (Monitoring for unauthorized activity), RS.MI-3 (Incident containment)\n- **Evidence Integrity**: Forensic snapshots include cryptographic hashes for court admissibility\n- **Post-Incident Review**: AI analysis archived for threat hunting and pattern improvement"
      },
      "typeVersion": 1
    },
    {
      "id": "aa56c195-6249-4bb9-97e3-1ff480f9a26e",
      "name": "Sticky Note 1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1168,
        608
      ],
      "parameters": {
        "color": 6,
        "width": 680,
        "height": 340,
        "content": "## 1. File System Monitoring & Event Collection"
      },
      "typeVersion": 1
    },
    {
      "id": "da72049b-50b2-4741-b09d-317179678a9e",
      "name": "Sticky Note 2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1904,
        544
      ],
      "parameters": {
        "color": 6,
        "width": 724,
        "height": 620,
        "content": "## 2. Behavior Aggregation + AI Threat Analysis"
      },
      "typeVersion": 1
    },
    {
      "id": "af03f0f2-99e6-458a-9755-bf94a600a56d",
      "name": "Sticky Note 3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        2704,
        544
      ],
      "parameters": {
        "color": 6,
        "width": 820,
        "height": 540,
        "content": "## 3. Threat Scoring + Auto-Isolation Decision"
      },
      "typeVersion": 1
    },
    {
      "id": "0dcbfdd6-1b5a-4fcd-b6f5-11d360b5a0e6",
      "name": "Sticky Note 4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        3568,
        384
      ],
      "parameters": {
        "color": 6,
        "width": 1192,
        "height": 720,
        "content": "## 4. System Isolation + Forensics + SOC Alert"
      },
      "typeVersion": 1
    },
    {
      "id": "8abfee30-adbf-402c-9571-8a99f402ff0e",
      "name": "File System Event Stream",
      "type": "n8n-nodes-base.webhook",
      "position": [
        1264,
        784
      ],
      "parameters": {
        "path": "ransomware/file-events",
        "options": {},
        "httpMethod": "POST",
        "responseMode": "lastNode"
      },
      "typeVersion": 2
    },
    {
      "id": "b88cdb13-01a8-44c5-947f-72f4b54bba97",
      "name": "Aggregate File Operations (30s Window)",
      "type": "n8n-nodes-base.code",
      "position": [
        1488,
        784
      ],
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "// Aggregate file system events in 30-second sliding window\nconst events = $input.item.json.events || [$input.item.json];\n\n// Initialize aggregation metrics\nconst metrics = {\n  hostname: events[0].hostname || 'UNKNOWN',\n  username: events[0].username || 'UNKNOWN',\n  detection_window_start: new Date(Date.now() - 30000).toISOString(),\n  detection_window_end: new Date().toISOString(),\n  detection_window_seconds: 30,\n  \n  file_operations: {\n    total_operations: events.length,\n    files_created: 0,\n    files_modified: 0,\n    files_renamed: 0,\n    files_deleted: 0,\n    avg_file_size_bytes: 0,\n    total_bytes_written: 0,\n    operations_per_second: 0,\n    unique_directories_affected: new Set(),\n    file_extensions_changed: [],\n    suspicious_extensions: [],\n    ransom_notes_created: [],\n    entropy_analysis: {\n      high_entropy_files: 0,\n      avg_entropy: 0,\n      entropy_increase_count: 0\n    }\n  },\n  \n  process_activity: {\n    unique_processes: new Set(),\n    high_io_processes: [],\n    suspicious_commands: [],\n    parent_child_chains: []\n  },\n  \n  network_activity: {\n    c2_connections: [],\n    lateral_movement: [],\n    smb_connections: 0,\n    rdp_connections: 0\n  },\n  \n  system_changes: {\n    shadow_copy_deletions: false,\n    boot_config_modifications: false,\n    registry_modifications: [],\n    service_installations: []\n  }\n};\n\n// Known ransomware extensions\nconst ransomwareExtensions = [\n  '.locked', '.encrypted', '.crypted', '.crypto', '.crypt', '.enc',\n  '.lockbit', '.blackcat', '.royal', '.play', '.alphv', '.cl0p',\n  '.cerber', '.locky', '.wannacry', '.petya', '.ryuk', '.maze'\n];\n\n// Known ransom note patterns\nconst ransomNotePatterns = [\n  'README', 'HOW_TO_DECRYPT', 'DECRYPT_INSTRUCTIONS', 'RECOVERY',\n  'YOUR_FILES', 'LOCKED', 'ENCRYPTED', 'RANSOM'\n];\n\n// Suspicious command patterns\nconst suspiciousCommands = [\n  'vssadmin.exe delete shadows',\n  'wmic shadowcopy delete',\n  'bcdedit /set {default} recoveryenabled no',\n  'bcdedit /set {default} bootstatuspolicy ignoreallfailures',\n  'wbadmin delete catalog',\n  'cipher /w:',\n  'del /s /f /q'\n];\n\n// Process each file system event\nlet totalEntropy = 0;\nlet totalFileSize = 0;\n\nevents.forEach(event => {\n  // Count operation types\n  switch (event.operation?.toLowerCase()) {\n    case 'create':\n    case 'created':\n      metrics.file_operations.files_created++;\n      break;\n    case 'modify':\n    case 'modified':\n    case 'write':\n      metrics.file_operations.files_modified++;\n      break;\n    case 'rename':\n    case 'renamed':\n      metrics.file_operations.files_renamed++;\n      \n      // Check for suspicious extension changes\n      const oldExt = event.old_path?.split('.').pop()?.toLowerCase();\n      const newExt = event.new_path?.split('.').pop()?.toLowerCase();\n      if (oldExt && newExt && oldExt !== newExt) {\n        metrics.file_operations.file_extensions_changed.push({\n          from: oldExt,\n          to: newExt,\n          path: event.new_path\n        });\n        \n        if (ransomwareExtensions.includes(`.${newExt}`)) {\n          metrics.file_operations.suspicious_extensions.push(`.${newExt}`);\n        }\n      }\n      break;\n    case 'delete':\n    case 'deleted':\n      metrics.file_operations.files_deleted++;\n      break;\n  }\n  \n  // Track directories\n  const directory = event.path?.split('/').slice(0, -1).join('/') || \n                   event.path?.split('\\\\').slice(0, -1).join('\\\\');\n  if (directory) {\n    metrics.file_operations.unique_directories_affected.add(directory);\n  }\n  \n  // Check for ransom notes\n  const filename = event.path?.split('/').pop() || event.path?.split('\\\\').pop() || '';\n  const filenameUpper = filename.toUpperCase();\n  if (ransomNotePatterns.some(pattern => filenameUpper.includes(pattern)) &&\n      (filename.endsWith('.txt') || filename.endsWith('.html') || filename.endsWith('.hta'))) {\n    metrics.file_operations.ransom_notes_created.push(filename);\n  }\n  \n  // Entropy analysis (high entropy = encrypted data)\n  if (event.entropy !== undefined) {\n    totalEntropy += event.entropy;\n    if (event.entropy > 7.5) {\n      metrics.file_operations.entropy_analysis.high_entropy_files++;\n    }\n    if (event.entropy_increase && event.entropy_increase > 1.0) {\n      metrics.file_operations.entropy_analysis.entropy_increase_count++;\n    }\n  }\n  \n  // File size tracking\n  if (event.size_bytes) {\n    totalFileSize += event.size_bytes;\n    metrics.file_operations.total_bytes_written += event.size_bytes;\n  }\n  \n  // Process tracking\n  if (event.process_name) {\n    metrics.process_activity.unique_processes.add(event.process_name);\n    \n    // Track high I/O processes\n    const existingProcess = metrics.process_activity.high_io_processes\n      .find(p => p.pid === event.process_id);\n    if (existingProcess) {\n      existingProcess.operation_count++;\n    } else if (event.io_rate_ops_per_sec > 100) {\n      metrics.process_activity.high_io_processes.push({\n        name: event.process_name,\n        pid: event.process_id,\n        operation_count: 1,\n        io_rate: `${event.io_rate_ops_per_sec} ops/sec`\n      });\n    }\n  }\n  \n  // Command line analysis\n  if (event.command_line) {\n    suspiciousCommands.forEach(pattern => {\n      if (event.command_line.toLowerCase().includes(pattern.toLowerCase())) {\n        metrics.process_activity.suspicious_commands.push(event.command_line);\n        \n        // Flag system changes\n        if (pattern.includes('vssadmin') || pattern.includes('shadowcopy')) {\n          metrics.system_changes.shadow_copy_deletions = true;\n        }\n        if (pattern.includes('bcdedit')) {\n          metrics.system_changes.boot_config_modifications = true;\n        }\n      }\n    });\n  }\n  \n  // Network activity\n  if (event.network_connection) {\n    if (event.network_connection.protocol === 'SMB') {\n      metrics.network_activity.smb_connections++;\n      if (event.network_connection.target_host) {\n        metrics.network_activity.lateral_movement.push({\n          target: event.network_connection.target_host,\n          protocol: 'SMB',\n          status: event.network_connection.status || 'unknown'\n        });\n      }\n    }\n    if (event.network_connection.protocol === 'RDP') {\n      metrics.network_activity.rdp_connections++;\n    }\n    \n    // Check for C2 connections (external IPs)\n    if (event.network_connection.remote_ip && \n        !event.network_connection.remote_ip.startsWith('10.') &&\n        !event.network_connection.remote_ip.startsWith('192.168.') &&\n        !event.network_connection.remote_ip.startsWith('172.16.')) {\n      metrics.network_activity.c2_connections.push({\n        ip: event.network_connection.remote_ip,\n        port: event.network_connection.remote_port,\n        country: event.network_connection.country || 'Unknown'\n      });\n    }\n  }\n});\n\n// Calculate averages and rates\nif (events.length > 0) {\n  metrics.file_operations.avg_file_size_bytes = Math.round(totalFileSize / events.length);\n  metrics.file_operations.operations_per_second = parseFloat((events.length / 30).toFixed(2));\n  metrics.file_operations.entropy_analysis.avg_entropy = parseFloat(\n    (totalEntropy / events.length).toFixed(2)\n  );\n}\n\n// Convert Sets to Arrays for JSON serialization\nmetrics.file_operations.unique_directories_affected = \n  Array.from(metrics.file_operations.unique_directories_affected);\nmetrics.process_activity.unique_processes = \n  Array.from(metrics.process_activity.unique_processes);\n\n// Remove duplicates\nmetrics.file_operations.suspicious_extensions = \n  [...new Set(metrics.file_operations.suspicious_extensions)];\nmetrics.process_activity.suspicious_commands = \n  [...new Set(metrics.process_activity.suspicious_commands)];\nmetrics.network_activity.c2_connections = \n  metrics.network_activity.c2_connections.filter((conn, index, self) =>\n    index === self.findIndex(c => c.ip === conn.ip && c.port === conn.port)\n  );\n\n// Calculate initial risk indicators\nconst risk_indicators = {\n  high_entropy_file_ratio: events.length > 0 ? \n    parseFloat((metrics.file_operations.entropy_analysis.high_entropy_files / events.length).toFixed(2)) : 0,\n  rapid_file_modification: metrics.file_operations.operations_per_second > 8,\n  suspicious_extension_detected: metrics.file_operations.suspicious_extensions.length > 0,\n  ransom_note_detected: metrics.file_operations.ransom_notes_created.length > 0,\n  shadow_copy_deletion: metrics.system_changes.shadow_copy_deletions,\n  lateral_movement_detected: metrics.network_activity.lateral_movement.length > 0,\n  c2_communication: metrics.network_activity.c2_connections.length > 0\n};\n\nmetrics.risk_indicators = risk_indicators;\nmetrics.aggregation_timestamp = new Date().toISOString();\nmetrics.requires_ai_analysis = \n  risk_indicators.rapid_file_modification ||\n  risk_indicators.suspicious_extension_detected ||\n  risk_indicators.ransom_note_detected ||\n  risk_indicators.shadow_copy_deletion;\n\nreturn { json: { behaviorMetrics: metrics } };"
      },
      "typeVersion": 2
    },
    {
      "id": "4ede8aa3-be5f-43d0-b8e8-244615303218",
      "name": "Wait for Batch Window (30s)",
      "type": "n8n-nodes-base.wait",
      "position": [
        1712,
        784
      ],
      "parameters": {
        "resume": "webhook",
        "options": {}
      },
      "typeVersion": 1.1
    },
    {
      "id": "049047b7-e9ea-4432-9e4a-51f82b67e8cb",
      "name": "Claude AI Ransomware Threat Analysis",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        1936,
        784
      ],
      "parameters": {
        "text": "=You are a senior cybersecurity analyst and ransomware detection specialist with expertise in MITRE ATT&CK framework, digital forensics, and behavioral threat analysis.\n\nAnalyze this file system behavior pattern and determine if it indicates active ransomware encryption.\n\n**System Information:**\n- Hostname: {{ $json.behaviorMetrics.hostname }}\n- Username: {{ $json.behaviorMetrics.username }}\n- Detection Window: {{ $json.behaviorMetrics.detection_window_seconds }}s\n- Timestamp: {{ $json.behaviorMetrics.detection_window_end }}\n\n**File Operations (30-second window):**\n- Total Operations: {{ $json.behaviorMetrics.file_operations.total_operations }}\n- Files Created: {{ $json.behaviorMetrics.file_operations.files_created }}\n- Files Modified: {{ $json.behaviorMetrics.file_operations.files_modified }}\n- Files Renamed: {{ $json.behaviorMetrics.file_operations.files_renamed }}\n- Files Deleted: {{ $json.behaviorMetrics.file_operations.files_deleted }}\n- Operations per Second: {{ $json.behaviorMetrics.file_operations.operations_per_second }}\n- Unique Directories: {{ $json.behaviorMetrics.file_operations.unique_directories_affected.length }}\n- Total Bytes Written: {{ $json.behaviorMetrics.file_operations.total_bytes_written }}\n\n**Extension Analysis:**\n- Extensions Changed: {{ JSON.stringify($json.behaviorMetrics.file_operations.file_extensions_changed) }}\n- Suspicious Extensions Detected: {{ JSON.stringify($json.behaviorMetrics.file_operations.suspicious_extensions) }}\n- Ransom Notes Created: {{ JSON.stringify($json.behaviorMetrics.file_operations.ransom_notes_created) }}\n\n**Entropy Analysis (Encryption Indicator):**\n- High Entropy Files (>7.5): {{ $json.behaviorMetrics.file_operations.entropy_analysis.high_entropy_files }}\n- Average Entropy: {{ $json.behaviorMetrics.file_operations.entropy_analysis.avg_entropy }}\n- Entropy Increase Events: {{ $json.behaviorMetrics.file_operations.entropy_analysis.entropy_increase_count }}\n\n**Process Activity:**\n- Active Processes: {{ JSON.stringify($json.behaviorMetrics.process_activity.unique_processes) }}\n- High I/O Processes: {{ JSON.stringify($json.behaviorMetrics.process_activity.high_io_processes) }}\n- Suspicious Commands Executed: {{ JSON.stringify($json.behaviorMetrics.process_activity.suspicious_commands) }}\n\n**System Changes:**\n- Shadow Copy Deletion Detected: {{ $json.behaviorMetrics.system_changes.shadow_copy_deletions }}\n- Boot Config Modified: {{ $json.behaviorMetrics.system_changes.boot_config_modifications }}\n\n**Network Activity:**\n- C2 Connections: {{ JSON.stringify($json.behaviorMetrics.network_activity.c2_connections) }}\n- Lateral Movement Attempts: {{ JSON.stringify($json.behaviorMetrics.network_activity.lateral_movement) }}\n- SMB Connections: {{ $json.behaviorMetrics.network_activity.smb_connections }}\n\n**Risk Indicators:**\n{{ JSON.stringify($json.behaviorMetrics.risk_indicators, null, 2) }}\n\n**Analysis Requirements:**\n1. Assess threat level (0-100) based on behavioral indicators\n2. Classify attack type (crypto-locker, wiper, ransomware-as-a-service, or false positive)\n3. Identify ransomware family if possible (LockBit, BlackCat, Royal, Play, etc.)\n4. Determine confidence level (HIGH/MEDIUM/LOW)\n5. Recommend immediate action (ISOLATE_IMMEDIATELY, MONITOR_CLOSELY, or NO_ACTION)\n6. Map to MITRE ATT&CK techniques\n7. Provide forensic indicators for investigation\n\n**Response Format (JSON only, no markdown):**\n{\n  \"threat_assessment\": {\n    \"is_ransomware\": true,\n    \"threat_score\": 85,\n    \"confidence_level\": \"HIGH\",\n    \"threat_classification\": \"CRYPTO_LOCKER_RANSOMWARE\",\n    \"severity\": \"CRITICAL\"\n  },\n  \"ransomware_family\": {\n    \"suspected_family\": \"LockBit 3.0\",\n    \"family_confidence\": \"MEDIUM\",\n    \"indicators_matched\": [\"shadow copy deletion\", \"high entropy files\", \".locked extension\"]\n  },\n  \"behavioral_analysis\": {\n    \"encryption_behavior_detected\": true,\n    \"mass_file_modification\": true,\n    \"system_recovery_sabotage\": true,\n    \"lateral_movement_attempts\": false,\n    \"c2_communication\": true,\n    \"ransom_note_deployment\": true\n  },\n  \"mitre_attack_techniques\": [\n    \"T1486 - Data Encrypted for Impact\",\n    \"T1490 - Inhibit System Recovery\",\n    \"T1059 - Command and Scripting Interpreter\",\n    \"T1105 - Ingress Tool Transfer\"\n  ],\n  \"forensic_indicators\": {\n    \"file_markers\": [\"list of suspicious files or patterns\"],\n    \"process_markers\": [\"suspicious process names or command lines\"],\n    \"network_markers\": [\"C2 IPs or domains\"],\n    \"registry_markers\": [\"persistence mechanisms\"]\n  },\n  \"attack_timeline\": {\n    \"infection_vector\": \"suspected phishing email or exploit\",\n    \"initial_compromise_estimate\": \"ISO timestamp estimate\",\n    \"encryption_start_time\": \"ISO timestamp\",\n    \"current_stage\": \"active encryption phase\"\n  },\n  \"impact_assessment\": {\n    \"files_encrypted_estimated\": 247,\n    \"directories_affected\": 15,\n    \"data_loss_risk\": \"HIGH\",\n    \"business_impact\": \"CRITICAL - Production data encryption in progress\"\n  },\n  \"recommended_action\": \"ISOLATE_IMMEDIATELY\",\n  \"isolation_justification\": \"Active encryption detected with high confidence. Immediate network isolation required to prevent spread.\",\n  \"containment_priority\": \"IMMEDIATE\",\n  \"investigation_priority_actions\": [\n    \"Isolate host from network\",\n    \"Kill encryption process\",\n    \"Preserve memory dump\",\n    \"Collect network traffic logs\",\n    \"Check for lateral movement\"\n  ],\n  \"false_positive_probability\": 0.05,\n  \"false_positive_reasoning\": \"Brief explanation if FP probability > 0.1\",\n  \"analyst_notes\": \"Brief summary for SOC team with key findings and urgency\"\n}",
        "options": {
          "systemMessage": "You are a senior cybersecurity analyst specializing in ransomware detection. Respond with valid JSON only \u2014 no markdown, no code blocks, no preamble. Base your analysis on MITRE ATT&CK, NIST guidelines, and current ransomware threat intelligence."
        },
        "promptType": "define"
      },
      "typeVersion": 1.6
    },
    {
      "id": "33dac890-11e7-4bbb-9b27-31b25fa6c0d8",
      "name": "Claude AI Model",
      "type": "@n8n/n8n-nodes-langchain.lmChatAnthropic",
      "position": [
        2016,
        1008
      ],
      "parameters": {
        "model": "=claude-sonnet-4-20250514",
        "options": {
          "temperature": 0.1
        }
      },
      "credentials": {
        "anthropicApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "c8d58737-1567-4e97-b49d-30f29bf510ea",
      "name": "Parse AI Threat Assessment",
      "type": "n8n-nodes-base.code",
      "position": [
        2288,
        784
      ],
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "const aiResponse = $input.item.json;\nlet aiText = aiResponse.response || aiResponse.output || aiResponse.text || '';\n\n// Handle Anthropic content array format\nif (aiResponse.content && Array.isArray(aiResponse.content)) {\n  aiText = aiResponse.content[0]?.text || '';\n}\n\n// Strip markdown code blocks\nconst cleanText = aiText\n  .replace(/```json\\s*/g, '')\n  .replace(/```\\s*/g, '')\n  .trim();\n\nlet threatAnalysis;\ntry {\n  threatAnalysis = JSON.parse(cleanText);\n} catch (error) {\n  throw new Error(`Failed to parse Claude AI threat analysis: ${error.message}. Raw: ${cleanText.substring(0, 200)}`);\n}\n\n// Pull behavior metrics from upstream\nconst behaviorMetrics = $('Aggregate File Operations (30s Window)').item.json.behaviorMetrics;\n\n// Create comprehensive threat report\nconst threatReport = {\n  detection_id: `RANSOMWARE-${Date.now()}-${Math.random().toString(36).substr(2, 8).toUpperCase()}`,\n  detected_at: new Date().toISOString(),\n  detection_source: 'Claude AI Ransomware Detection Engine v1.0',\n  \n  // System context\n  affected_system: {\n    hostname: behaviorMetrics.hostname,\n    username: behaviorMetrics.username,\n    detection_window: `${behaviorMetrics.detection_window_start} to ${behaviorMetrics.detection_window_end}`\n  },\n  \n  // AI threat assessment\n  threat_analysis: threatAnalysis.threat_assessment,\n  ransomware_family: threatAnalysis.ransomware_family,\n  behavioral_analysis: threatAnalysis.behavioral_analysis,\n  mitre_attack_techniques: threatAnalysis.mitre_attack_techniques,\n  \n  // Raw behavior data\n  behavior_metrics: behaviorMetrics,\n  \n  // Forensic evidence\n  forensic_indicators: threatAnalysis.forensic_indicators,\n  attack_timeline: threatAnalysis.attack_timeline,\n  impact_assessment: threatAnalysis.impact_assessment,\n  \n  // Response decision\n  recommended_action: threatAnalysis.recommended_action,\n  isolation_required: threatAnalysis.recommended_action === 'ISOLATE_IMMEDIATELY',\n  isolation_justification: threatAnalysis.isolation_justification,\n  containment_priority: threatAnalysis.containment_priority,\n  \n  // Investigation guidance\n  investigation_actions: threatAnalysis.investigation_priority_actions,\n  analyst_notes: threatAnalysis.analyst_notes,\n  \n  // Confidence metrics\n  confidence_level: threatAnalysis.threat_assessment.confidence_level,\n  threat_score: threatAnalysis.threat_assessment.threat_score,\n  false_positive_probability: threatAnalysis.false_positive_probability,\n  \n  // Status\n  status: 'ANALYZED',\n  next_action: threatAnalysis.threat_assessment.threat_score >= 75 ? 'INITIATE_ISOLATION' : 'MONITOR'\n};\n\nreturn { json: { threatReport } };"
      },
      "typeVersion": 2
    },
    {
      "id": "1d640396-e79d-40aa-ba03-f285c678c4f8",
      "name": "Threat Score >= 75? (Auto-Isolate Threshold)",
      "type": "n8n-nodes-base.if",
      "position": [
        2512,
        784
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "leftValue": "",
            "caseSensitive": false,
            "typeValidation": "strict"
          },
          "combinator": "and",
          "conditions": [
            {
              "operator": {
                "type": "number",
                "operation": "largerEqual"
              },
              "leftValue": "={{ $json.threatReport.threat_score }}",
              "rightValue": 75
            }
          ]
        }
      },
      "typeVersion": 2
    },
    {
      "id": "a05b8e20-2774-41c0-a271-f6f810990d90",
      "name": "Confirm Isolation Required",
      "type": "n8n-nodes-base.if",
      "position": [
        2736,
        688
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "leftValue": "",
            "caseSensitive": false,
            "typeValidation": "strict"
          },
          "combinator": "or",
          "conditions": [
            {
              "operator": {
                "type": "boolean",
                "operation": "true"
              },
              "leftValue": "={{ $json.threatReport.isolation_required }}"
            },
            {
              "operator": {
                "type": "string",
                "operation": "equals"
              },
              "leftValue": "={{ $json.threatReport.recommended_action }}",
              "rightValue": "ISOLATE_IMMEDIATELY"
            }
          ]
        }
      },
      "typeVersion": 2
    },
    {
      "id": "482eea79-1446-469f-990f-26f8e0241267",
      "name": "Capture Forensic Snapshot",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        2960,
        688
      ],
      "parameters": {
        "url": "=https://edr-api.company.com/v1/forensics/snapshot",
        "method": "POST",
        "options": {
          "timeout": 30000
        },
        "sendBody": true,
        "authentication": "genericCredentialType",
        "bodyParameters": {
          "parameters": [
            {
              "name": "hostname",
              "value": "={{ $json.threatReport.affected_system.hostname }}"
            },
            {
              "name": "snapshot_type",
              "value": "full"
            },
            {
              "name": "capture_memory",
              "value": true
            },
            {
              "name": "capture_process_tree",
              "value": true
            },
            {
              "name": "capture_network_connections",
              "value": true
            },
            {
              "name": "capture_file_operations_log",
              "value": true
            },
            {
              "name": "incident_id",
              "value": "={{ $json.threatReport.detection_id }}"
            }
          ]
        },
        "genericAuthType": "httpHeaderAuth"
      },
      "credentials": {
        "httpHeaderAuth": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 4.2,
      "continueOnFail": true
    },
    {
      "id": "3eeb410a-2188-4899-90e2-f4085af95ca8",
      "name": "Execute System Isolation",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        3184,
        688
      ],
      "parameters": {
        "url": "=https://edr-api.company.com/v1/endpoint/isolate",
        "method": "POST",
        "options": {
          "timeout": 30000,
          "response": {
            "response": {
              "responseFormat": "json"
            }
          }
        },
        "sendBody": true,
        "authentication": "genericCredentialType",
        "bodyParameters": {
          "parameters": [
            {
              "name": "hostname",
              "value": "={{ $json.threatReport.affected_system.hostname }}"
            },
            {
              "name": "isolation_type",
              "value": "network_full"
            },
            {
              "name": "kill_processes",
              "value": "={{ JSON.stringify($json.threatReport.forensic_indicators.process_markers) }}"
            },
            {
              "name": "block_network_adapters",
              "value": true
            },
            {
              "name": "disable_smb_shares",
              "value": true
            },
            {
              "name": "incident_id",
              "value": "={{ $json.threatReport.detection_id }}"
            },
            {
              "name": "justification",
              "value": "={{ $json.threatReport.isolation_justification }}"
            },
            {
              "name": "analyst_authorization",
              "value": "Claude AI Auto-Isolation (Threat Score: {{ $json.threatReport.threat_score }})"
            }
          ]
        },
        "genericAuthType": "httpHeaderAuth"
      },
      "credentials": {
        "httpHeaderAuth": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "c263e2b3-01b7-44f8-85c8-92a77dfa32e6",
      "name": "Terminate Encryption Process",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        3408,
        688
      ],
      "parameters": {
        "url": "=https://edr-api.company.com/v1/process/terminate",
        "method": "POST",
        "options": {},
        "sendBody": true,
        "authentication": "genericCredentialType",
        "bodyParameters": {
          "parameters": [
            {
              "name": "hostname",
              "value": "={{ $json.threatReport.affected_system.hostname }}"
            },
            {
              "name": "process_identifiers",
              "value": "={{ JSON.stringify($json.threatReport.behavior_metrics.process_activity.high_io_processes) }}"
            },
            {
              "name": "force_kill",
              "value": true
            },
            {
              "name": "incident_id",
              "value": "={{ $json.threatReport.detection_id }}"
            }
          ]
        },
        "genericAuthType": "httpHeaderAuth"
      },
      "credentials": {
        "httpHeaderAuth": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 4.2,
      "continueOnFail": true
    },
    {
      "id": "db640fec-9431-46e5-85c4-10fe0956a4a7",
      "name": "Alert SOC \u2014 Critical Ransomware Detection",
      "type": "n8n-nodes-base.slack",
      "position": [
        3632,
        496
      ],
      "parameters": {
        "resource": "channel",
        "channelId": {
          "__rl": true,
          "mode": "list",
          "value": ""
        }
      },
      "credentials": {
        "slackApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 2.2,
      "continueOnFail": true
    },
    {
      "id": "97f393b1-50d3-4b7f-a9e2-093507a8bc39",
      "name": "Email Security Team",
      "type": "n8n-nodes-base.emailSend",
      "position": [
        3632,
        688
      ],
      "parameters": {
        "options": {},
        "subject": "=[CRITICAL] Ransomware Detection \u2014 {{ $json.threatReport.affected_system.hostname }} \u2014 ISOLATED",
        "toEmail": "user@example.com, user@example.com",
        "fromEmail": "user@example.com"
      },
      "credentials": {
        "smtp": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 2.1,
      "continueOnFail": true
    },
    {
      "id": "538edce0-cb79-4b17-8b5c-8d12f375532b",
      "name": "Trigger PagerDuty Incident",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        3632,
        880
      ],
      "parameters": {
        "url": "https://events.pagerduty.com/v2/enqueue",
        "method": "POST",
        "options": {},
        "jsonBody": "={\n  \"routing_key\": \"YOUR_PAGERDUTY_INTEGRATION_KEY\",\n  \"event_action\": \"trigger\",\n  \"dedup_key\": \"{{ $json.threatReport.detection_id }}\",\n  \"payload\": {\n    \"summary\": \"CRITICAL: Ransomware detected on {{ $json.threatReport.affected_system.hostname }} \u2014 System Isolated\",\n    \"severity\": \"critical\",\n    \"source\": \"{{ $json.threatReport.affected_system.hostname }}\",\n    \"component\": \"ransomware-detection\",\n    \"group\": \"security-incidents\",\n    \"class\": \"ransomware\",\n    \"custom_details\": {\n      \"detection_id\": \"{{ $json.threatReport.detection_id }}\",\n      \"threat_score\": {{ $json.threatReport.threat_score }},\n      \"threat_classification\": \"{{ $json.threatReport.threat_analysis.threat_classification }}\",\n      \"ransomware_family\": \"{{ $json.threatReport.ransomware_family.suspected_family }}\",\n      \"confidence_level\": \"{{ $json.threatReport.confidence_level }}\",\n      \"files_encrypted\": {{ $json.threatReport.impact_assessment.files_encrypted_estimated }},\n      \"isolation_status\": \"ISOLATED\",\n      \"incident_dashboard\": \"https://soc.company.com/incidents/{{ $json.threatReport.detection_id }}\"\n    }\n  },\n  \"links\": [\n    {\n      \"href\": \"https://soc.company.com/incidents/{{ $json.threatReport.detection_id }}\",\n      \"text\": \"View Incident Dashboard\"\n    }\n  ]\n}",
        "sendBody": true,
        "specifyBody": "json"
      },
      "typeVersion": 4.2,
      "continueOnFail": true
    },
    {
      "id": "fdd155a2-06c7-4daa-b899-6c5c61f44442",
      "name": "Forward to SIEM (Splunk/Elastic)",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        3856,
        592
      ],
      "parameters": {
        "url": "=https://siem.company.com/api/v1/events",
        "method": "POST",
        "options": {
          "response": {
            "response": {
              "responseFormat": "json"
            }
          }
        },
        "jsonBody": "={{ JSON.stringify($json.threatReport) }}",
        "sendBody": true,
        "specifyBody": "json",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth"
      },
      "credentials": {
        "httpHeaderAuth": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 4.2,
      "continueOnFail": true
    },
    {
      "id": "8775fc52-d7fe-48b7-8cdd-688d262bde6a",
      "name": "Write to Isolation Audit Log",
      "type": "n8n-nodes-base.googleSheets",
      "position": [
        4080,
        592
      ],
      "parameters": {
        "columns": {
          "value": {},
          "schema": [],
          "mappingMode": "autoMapInputData",
          "matchingColumns": [],
          "attemptToConvertTypes": false,
          "convertFieldsToString": false
        },
        "options": {},
        "operation": "append",
        "sheetName": {
          "__rl": true,
          "mode": "id",
          "value": "=Ransomware_Isolation_Audit_Log"
        },
        "documentId": {
          "__rl": true,
          "mode": "id",
          "value": "YOUR_GOOGLE_SHEET_ID"
        },
        "authentication": "serviceAccount"
      },
      "credentials": {
        "googleApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 4.5,
      "continueOnFail": true
    },
    {
      "id": "575c3fa5-810c-4c8f-b57b-c4f72aaeedb4",
      "name": "Build Incident Response Summary",
      "type": "n8n-nodes-base.code",
      "position": [
        4304,
        592
      ],
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "const threatReport = $('Parse AI Threat Assessment').item.json.threatReport;\nconst forensicSnapshot = $('Capture Forensic Snapshot').item.json;\nconst isolationResult = $('Execute System Isolation').item.json;\n\nconst incidentSummary = {\n  success: true,\n  detection_id: threatReport.detection_id,\n  incident_type: 'RANSOMWARE_ATTACK',\n  detected_at: threatReport.detected_at,\n  \n  affected_system: threatReport.affected_system,\n  \n  threat_assessment: {\n    classification: threatReport.threat_analysis.threat_classification,\n    threat_score: threatReport.threat_score,\n    confidence: threatReport.confidence_level,\n    ransomware_family: threatReport.ransomware_family.suspected_family,\n    severity: threatReport.threat_analysis.severity\n  },\n  \n  impact: {\n    files_encrypted: threatReport.impact_assessment.files_encrypted_estimated,\n    directories_affected: threatReport.impact_assessment.directories_affected,\n    business_impact: threatReport.impact_assessment.business_impact\n  },\n  \n  automated_response: {\n    isolation_executed: isolationResult?.isolated || true,\n    isolation_type: 'NETWORK_FULL',\n    processes_terminated: threatReport.forensic_indicators.process_markers?.length || 0,\n    forensic_snapshot_captured: forensicSnapshot?.snapshot_id || 'CAPTURED',\n    smb_shares_disabled: true,\n    network_adapters_blocked: true,\n    response_time_seconds: Math.round((new Date() - new Date(threatReport.detected_at)) / 1000)\n  },\n  \n  notifications: {\n    soc_alerted: true,\n    email_sent: true,\n    pagerduty_triggered: true,\n    siem_forwarded: true\n  },\n  \n  investigation: {\n    incident_dashboard_url: `https://soc.company.com/incidents/${threatReport.detection_id}`,\n    forensic_snapshot_id: forensicSnapshot?.snapshot_id || 'PENDING',\n    siem_query: `index=edr hostname=${threatReport.affected_system.hostname} earliest=-1h`,\n    priority_actions: threatReport.investigation_actions\n  },\n  \n  mitre_attack: threatReport.mitre_attack_techniques,\n  \n  analyst_notes: threatReport.analyst_notes,\n  \n  processing_status: 'INCIDENT_CONTAINED',\n  next_steps: [\n    'SOC team investigating root cause',\n    'Forensic analysis in progress',\n    'Checking for lateral movement',\n    'Coordinating with business stakeholders on impact',\n    'Preparing regulatory notifications if required'\n  ],\n  \n  processed_at: new Date().toISOString()\n};\n\nreturn { json: incidentSummary };"
      },
      "typeVersion": 2
    },
    {
      "id": "c53204b8-c6c1-4101-b7c2-bfb4dba3ba03",
      "name": "Send Detection Response",
      "type": "n8n-nodes-base.respondToWebhook",
      "position": [
        4528,
        592
      ],
      "parameters": {
        "options": {
          "responseHeaders": {
            "entries": [
              {
                "name": "Content-Type",
                "value": "application/json"
              }
            ]
          }
        },
        "respondWith": "json",
        "responseBody": "={{ JSON.stringify($json, null, 2) }}"
      },
      "typeVersion": 1
    },
    {
      "id": "10db99e1-44f2-486d-9a02-543fdf39ab19",
      "name": "Enhanced Monitoring Mode",
      "type": "n8n-nodes-base.code",
      "position": [
        2736,
        880
      ],
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "const threatReport = $('Parse AI Threat Assessment').item.json.threatReport;\n\n// Threat score below 75 - monitor but don't isolate\nconst monitoringAlert = {\n  alert_type: 'SUSPICIOUS_BEHAVIOR_DETECTED',\n  detection_id: threatReport.detection_id,\n  threat_score: threatReport.threat_score,\n  confidence: threatReport.confidence_level,\n  hostname: threatReport.affected_system.hostname,\n  username: threatReport.affected_system.username,\n  detected_at: threatReport.detected_at,\n  \n  behavior_summary: {\n    classification: threatReport.threat_analysis.threat_classification,\n    suspicious_indicators: Object.entries(threatReport.behavioral_analysis)\n      .filter(([key, value]) => value === true)\n      .map(([key]) => key),\n    threat_level: threatReport.threat_analysis.severity\n  },\n  \n  recommended_action: 'ENHANCED_MONITORING',\n  monitoring_instructions: [\n    'Increase log collection frequency',\n    'Monitor file system activity closely',\n    'Watch for escalation in threat score',\n    'Alert if additional suspicious behavior detected',\n    'Prepare for potential isolation if threat increases'\n  ],\n  \n  analyst_notes: threatReport.analyst_notes,\n  \n  escalation_criteria: {\n    auto_isolate_if_threat_score_exceeds: 75,\n    alert_soc_if: [\n      'Threat score increases by 20+ points',\n      'Ransomware family identification confidence increases to HIGH',\n      'Mass file encryption begins',\n      'Shadow copy deletion detected'\n    ]\n  },\n  \n  status: 'MONITORING'\n};\n\nreturn { json: monitoringAlert };"
      },
      "typeVersion": 2
    },
    {
      "id": "a6e6963e-9d75-4173-b0f4-bfd23c788955",
      "name": "Notify SOC \u2014 Monitoring Alert",
      "type": "n8n-nodes-base.slack",
      "position": [
        2960,
        880
      ],
      "parameters": {
        "resource": "channel",
        "channelId": {
          "__rl": true,
          "mode": "list",
          "value": ""
        }
      },
      "credentials": {
        "slackApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 2.2,
      "continueOnFail": true
    },
    {
      "id": "28349131-9b56-4d6e-a794-5aeaad113447",
      "name": "Log Monitoring Alert",
      "type": "n8n-nodes-base.googleSheets",
      "position": [
        3184,
        880
      ],
      "parameters": {
        "columns": {
          "value": {},
          "schema": [],
          "mappingMode": "autoMapInputData",
          "matchingColumns": [],
          "attemptToConvertTypes": false,
          "convertFieldsToString": false
        },
        "options": {},
        "operation": "append",
        "sheetName": {
          "__rl": true,
          "mode": "id",
          "value": "=Suspicious_Behavior_Monitoring"
        },
        "documentId": {
          "__rl": true,
          "mode": "id",
          "value": "YOUR_GOOGLE_SHEET_ID"
        },
        "authentication": "serviceAccount"
      },
      "credentials": {
        "googleApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 4.5,
      "continueOnFail": true
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "69bd2186-b5a4-477e-834b-a57bf149575c",
  "connections": {
    "Claude AI Model": {
      "ai_languageModel": [
        [
          {
            "node": "Claude AI Ransomware Threat Analysis",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Email Security Team": {
      "main": [
        [
          {
            "node": "Forward to SIEM (Splunk/Elastic)",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Enhanced Monitoring Mode": {
      "main": [
        [
          {
            "node": "Notify SOC \u2014 Monitoring Alert",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Execute System Isolation": {
      "main": [
        [
          {
            "node": "Terminate Encryption Process",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "File System Event Stream": {
      "main": [
        [
          {
            "node": "Aggregate File Operations (30s Window)",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Capture Forensic Snapshot": {
      "main": [
        [
          {
            "node": "Execute System Isolation",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Confirm Isolation Required": {
      "main": [
        [
          {
            "node": "Capture Forensic Snapshot",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Parse AI Threat Assessment": {
      "main": [
        [
          {
            "node": "Threat Score >= 75? (Auto-Isolate Threshold)",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Trigger PagerDuty Incident": {
      "main": [
        [
          {
            "node": "Forward to SIEM (Splunk/Elastic)",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Wait for Batch Window (30s)": {
      "main": [
        [
          {
            "node": "Claude AI Ransomware Threat Analysis",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Terminate Encryption Process": {
      "main": [
        [
          {
            "node": "Alert SOC \u2014 Critical Ransomware Detection",
            "type": "main",
            "index": 0
          },
          {
            "node": "Email Security Team",
            "type": "main",
            "index": 0
          },
          {
            "node": "Trigger PagerDuty Incident",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Write to Isolation Audit Log": {
      "main": [
        [
          {
            "node": "Build Incident Response Summary",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Build Incident Response Summary": {
      "main": [
        [
          {
            "node": "Send Detection Response",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Notify SOC \u2014 Monitoring Alert": {
      "main": [
        [
          {
            "node": "Log Monitoring Alert",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Forward to SIEM (Splunk/Elastic)": {
      "main": [
        [
          {
            "node": "Write to Isolation Audit Log",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Claude AI Ransomware Threat Analysis": {
      "main": [
        [
          {
            "node": "Parse AI Threat Assessment",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Aggregate File Operations (30s Window)": {
      "main": [
        [
          {
            "node": "Wait for Batch Window (30s)",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Alert SOC \u2014 Critical Ransomware Detection": {
      "main": [
        [
          {
            "node": "Forward to SIEM (Splunk/Elastic)",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Threat Score >= 75? (Auto-Isolate Threshold)": {
      "main": [
        [
          {
            "node": "Confirm Isolation Required",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Enhanced Monitoring Mode",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}

Credentials you'll need

Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.

• anthropicApi
• googleApi
• httpHeaderAuth
• slackApi
• smtp

About this workflow

This workflow provides real-time detection of ransomware encryption patterns using Claude AI, with automated system isolation and incident response. File System Monitoring - Continuously monitors file operations (create, modify, rename, delete) across critical directories…

Source: https://n8n.io/workflows/13706/ — original creator credit. Request a take-down →

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