set_beacon_spawnto

Set the spawn-to process for a beacon

SERVERCobalt Strike MCP Server SOURCEmickeydb/cobalt-strike-mcp

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mickeydb-cobalt-strike-mcp/set-beacon-spawnto.md

WHAT IT DOES

What set_beacon_spawnto does on Cobalt Strike MCP Server

AI agents invoke set_beacon_spawnto to trigger actions in Cobalt Strike MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why set_beacon_spawnto is rated High

This tool modifies the spawn-to configuration for a Cobalt Strike beacon, which controls which process is used when the beacon needs to spawn new processes for post-exploitation activities (e.g., running BOFs, lateral movement). This is an operational configuration change that directly affects the execution behavior of an active implant in a red team/adversary simulation context.

From the tool's definition 'Set the spawn-to process for a beacon' - configures the process that Cobalt Strike beacons will spawn into for post-exploitation operations

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs set_beacon_spawnto safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Cobalt Strike MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For set_beacon_spawnto, this is the rule to start with:

set_beacon_spawnto Rate-limited

set_beacon_spawnto stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "set_beacon_spawnto": {
      "limits": [
        {
          "counter": "set_beacon_spawnto_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Cobalt Strike MCP Server, apply this rule, and every set_beacon_spawnto call is checked against it from then on.

FAQ

Questions about set_beacon_spawnto

What does the set_beacon_spawnto tool do? +

Set the spawn-to process for a beacon. It is categorised as a Execute tool in the Cobalt Strike MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on set_beacon_spawnto? +

Register the Cobalt Strike MCP Server MCP server in PolicyLayer and add a rule for set_beacon_spawnto: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Cobalt Strike MCP Server. Nothing to install.

What risk level is set_beacon_spawnto? +

set_beacon_spawnto is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit set_beacon_spawnto? +

Yes. Add a rate_limit block to the set_beacon_spawnto rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block set_beacon_spawnto completely? +

Set action: deny in the PolicyLayer policy for set_beacon_spawnto. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides set_beacon_spawnto? +

set_beacon_spawnto is provided by the Cobalt Strike MCP Server MCP server (mickeydb/cobalt-strike-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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