set_beacon_c2_host · Cobalt Strike MCP Server MCP

WHAT IT DOES

What set_beacon_c2_host does on Cobalt Strike MCP Server

AI agents use set_beacon_c2_host to create or update resources in Cobalt Strike MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Cobalt Strike MCP Server environment.

WHY IT NEEDS A POLICY

Why set_beacon_c2_host needs a policy

This tool writes/modifies the C2 communication endpoint for a Cobalt Strike beacon. While reversible (can be changed again), misconfiguration or adversarial use could redirect beacon communications to attacker-controlled infrastructure, making it high severity. It is a Write operation as it updates configuration rather than executing commands or destroying data.

From the tool's definition 'Set C2 host for beacon' — modifies the command-and-control host configuration for an active beacon

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_beacon_c2_host Rate-limited

set_beacon_c2_host stays usable, but capped — an agent stuck in a loop can't make hundreds of changes 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_c2_host": {
      "limits": [
        {
          "counter": "set_beacon_c2_host_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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 set_beacon_c2_host

What does the set_beacon_c2_host tool do? +

Set C2 host for beacon. It is categorised as a Write tool in the Cobalt Strike MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_beacon_c2_host? +

Register the Cobalt Strike MCP Server MCP server in PolicyLayer and add a rule for set_beacon_c2_host: 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_c2_host? +

set_beacon_c2_host is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit set_beacon_c2_host? +

Yes. Add a rate_limit block to the set_beacon_c2_host 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_c2_host completely? +

Set action: deny in the PolicyLayer policy for set_beacon_c2_host. 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_c2_host? +

set_beacon_c2_host 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.