execute_checkin · Cobalt Strike MCP Server MCP

WHAT IT DOES

What execute_checkin does on Cobalt Strike MCP Server

AI agents invoke execute_checkin 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.

WHY IT NEEDS A POLICY

Why execute_checkin needs a policy

This tool invokes remote code execution on a Cobalt Strike beacon, which is an active command-and-control operation. Misuse by an AI agent could trigger unwanted beacon activity, network exfiltration, or further compromise. The blast radius is critical given the context of red team malware control.

From the tool's definition 'Force beacon to check in immediately' - this triggers an immediate external operation on a compromised system (beacon). The tool executes a command whose effects depend on the beacon's state and network configuration.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

execute_checkin Rate-limited

execute_checkin 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": {
    "execute_checkin": {
      "limits": [
        {
          "counter": "execute_checkin_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Cobalt Strike MCP Server, so you can run agents against it safely.

FAQ

Questions about execute_checkin

What does the execute_checkin tool do? +

Force beacon to check in immediately. 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 execute_checkin? +

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

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

Can I rate-limit execute_checkin? +

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

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

execute_checkin 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.