spawn_net_sessions

Enumerate sessions (spawn mode)

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/spawn-net-sessions.md

WHAT IT DOES

What spawn_net_sessions does on Cobalt Strike MCP Server

AI agents invoke spawn_net_sessions 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 spawn_net_sessions is rated High

While the description says 'enumerate sessions,' the 'spawn mode' qualifier indicates this tool actively spawns processes or sessions rather than passively reading data. On a Cobalt Strike server used for red team operations, spawning sessions can establish new beacons or lateral movement footholds, making this an Execute-category action.

From the tool's definition 'spawn mode' indicates active process/session spawning, not merely passive enumeration; tool name 'spawn_net_sessions' combines session enumeration with a spawn operation

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs spawn_net_sessions 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 spawn_net_sessions, this is the rule to start with:

spawn_net_sessions Rate-limited

spawn_net_sessions 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": {
    "spawn_net_sessions": {
      "limits": [
        {
          "counter": "spawn_net_sessions_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 spawn_net_sessions call is checked against it from then on.

FAQ

Questions about spawn_net_sessions

What does the spawn_net_sessions tool do? +

Enumerate sessions (spawn mode). 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 spawn_net_sessions? +

Register the Cobalt Strike MCP Server MCP server in PolicyLayer and add a rule for spawn_net_sessions: 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 spawn_net_sessions? +

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

Can I rate-limit spawn_net_sessions? +

Yes. Add a rate_limit block to the spawn_net_sessions 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 spawn_net_sessions completely? +

Set action: deny in the PolicyLayer policy for spawn_net_sessions. 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 spawn_net_sessions? +

spawn_net_sessions 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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