nxc_rdp · Sec Netexec MCP: Risk & Policy

WHAT IT DOES

What nxc_rdp does on Sec Netexec

AI agents invoke nxc_rdp to trigger actions in Sec Netexec. 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 nxc_rdp needs a policy

This tool executes penetration testing commands against RDP services, which involves running external operations (credential validation, screenshot capture) whose effects depend entirely on the arguments provided.

From the tool's definition Tool description states it "Execute[s] NetExec RDP protocol commands" and can perform "credential validation and screenshot capture." The server description confirms this is for "execute [ing] NetExec network penetration testing commands via SSH to a Kali…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

nxc_rdp Rate-limited

nxc_rdp 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": {
    "nxc_rdp": {
      "limits": [
        {
          "counter": "nxc_rdp_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 Sec Netexec, so you can run agents against it safely.

FAQ

Questions about nxc_rdp

What does the nxc_rdp tool do? +

Execute NetExec RDP protocol commands for credential validation and screenshot capture. It is categorised as a Execute tool in the Sec Netexec MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on nxc_rdp? +

Register the Sec Netexec MCP server in PolicyLayer and add a rule for nxc_rdp: 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 Sec Netexec. Nothing to install.

What risk level is nxc_rdp? +

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

Can I rate-limit nxc_rdp? +

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

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

nxc_rdp is provided by the Sec Netexec MCP server (schwarztim/sec-netexec-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.