start_psexec_shell

A execute tool on the Pentester- MCP server.

SERVERPentester-MCP SOURCEhalilkirazkaya/pentester-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/halilkirazkaya-pentester-mcp/start-psexec-shell.md

WHAT IT DOES

What start_psexec_shell does on Pentester-MCP

AI agents invoke start_psexec_shell to trigger actions in Pentester-MCP. 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 start_psexec_shell is rated High

PsExec is a remote execution primitive that allows an agent to run arbitrary commands on Windows systems, potentially on remote hosts. This is Execute rather than Destructive because the outcome depends entirely on what commands are passed to it—it could be benign (list processes) or malicious (delete files, exfiltrate data, establish persistence).

From the tool's definition Tool name 'start_psexec_shell' explicitly invokes PsExec, a Windows utility that executes commands remotely on target systems.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs start_psexec_shell safely

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

start_psexec_shell Rate-limited

start_psexec_shell 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": {
    "start_psexec_shell": {
      "limits": [
        {
          "counter": "start_psexec_shell_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 Pentester-MCP, apply this rule, and every start_psexec_shell call is checked against it from then on.

FAQ

Questions about start_psexec_shell

What does the start_psexec_shell tool do? +

start_psexec_shell is a execute tool on the Pentester MCP server. It is categorised as a Execute tool in the Pentester-MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on start_psexec_shell? +

Register the Pentester MCP server in PolicyLayer and add a rule for start_psexec_shell: 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 Pentester-MCP. Nothing to install.

What risk level is start_psexec_shell? +

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

Can I rate-limit start_psexec_shell? +

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

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

start_psexec_shell is provided by the Pentester MCP server (halilkirazkaya/pentester-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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