Elastic critical stable kql

Elastic Defend Alert from GenAI Utility or Descendant

Detects Elastic Defend alerts (behavior, malicious file, memory signature, shellcode) where the alerted process or its direct parent is a GenAI coding or assistant utility (e.g. Cursor, Claude, Windsurf, Cody, Continue, Aider, OpenClaw, Moltbot, Clawdbot, Codeium, Tabnine, GitHub Copilot). Activity from these tools can indicate prompt injection, malicious skills, or supply-chain abuse; this Higher-Order rule helps prioritize such alerts for triage.

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Detection Logic

FROM logs-endpoint.alerts-*, logs-endpoint.events.process-* metadata _id, _version, _index
| EVAL is_genai_spawn =  TO_LOWER(process.parent.name) IN (
        "claude", "claude.exe", "cursor", "cursor.exe", "cursor helper", "cursor helper (plugin)",
        "codex", "codex.exe", "cody", "cody.exe", "copilot", "copilot.exe", "gemini-cli", "gemini-cli.exe",
        "openai", "openai.exe", "ollama", "ollama.exe", "llm", "llm.exe",
        "aider", "aider.exe", "cline", "cline.exe", "continue", "continue.exe",
        "zed", "zed.exe", "windsurf", "windsurf.exe",
        "tabnine", "tabnine.exe", "codeium", "codeium.exe", "bolt", "bolt.exe",
        "devin", "devin.exe", "replit", "replit.exe", "ghostwriter", "ghostwriter.exe", "bito", "bito.exe"
    ),
     is_openclaw_spawn = process.parent.name in ("node", "node.exe") and (process.parent.command_line like "*openclaw*" or process.parent.command_line like "*moltbot*" or process.parent.command_line like "*clawdbot*")
| WHERE process.Ext.ancestry IS NOT NULL and 
   (data_stream.dataset == "endpoint.alerts" or is_genai_spawn or is_openclaw_spawn)
// Identify GenAI tool spawn events and capture their entity_ids
| EVAL genai_entity_id = CASE(is_genai_spawn or is_openclaw_spawn, process.parent.entity_id, NULL)

// Collect ALL GenAI entity_ids globally across the dataset
| INLINE STATS 
    all_genai_entity_ids = VALUES(genai_entity_id) 
WHERE genai_entity_id IS NOT NULL
// Find which GenAI entity_ids appear in this process's ancestry
| EVAL Esql.genai_ancestor_ids = MV_INTERSECTION(all_genai_entity_ids, process.Ext.ancestry)

// Elastic Defend alerts from a GenAI grandparent
| WHERE Esql.genai_ancestor_ids IS NOT NULL 
        
AND data_stream.dataset == "endpoint.alerts" 
AND not rule.name in (
            "Persistence via GenAI Tool",
            "Code Editor Untrusted or Unsigned Child Process Execution",
            "Suspicious Credential Access via GenAI Tool",
            "Credential Access via GenAI Tool Descendant"
        )
| KEEP *

Field Validations

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