mimikatz_attack · Kali MCP: Risk & Policy

WHAT IT DOES

What mimikatz_attack does on Kali

AI agents invoke mimikatz_attack to trigger actions in Kali. 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 mimikatz_attack needs a policy

Mimikatz is designed to extract plaintext passwords, hashes, and Kerberos tickets from Windows systems. The verb 'Execute' in the description confirms this tool runs an external operation with effects dependent on the target system being attacked.

From the tool's definition Tool name 'mimikatz_attack' combined with description 'Execute Mimikatz Windows credential extraction tool' indicates execution of the Mimikatz utility, a well-known Windows credential dumping and post-exploitation tool.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

mimikatz_attack Rate-limited

mimikatz_attack 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": {
    "mimikatz_attack": {
      "limits": [
        {
          "counter": "mimikatz_attack_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 Kali, so you can run agents against it safely.

FAQ

Questions about mimikatz_attack

What does the mimikatz_attack tool do? +

Execute Mimikatz Windows credential extraction tool. It is categorised as a Execute tool in the Kali MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on mimikatz_attack? +

Register the Kali MCP server in PolicyLayer and add a rule for mimikatz_attack: 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 Kali. Nothing to install.

What risk level is mimikatz_attack? +

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

Can I rate-limit mimikatz_attack? +

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

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

mimikatz_attack is provided by the Kali MCP server (pentestt00ls/kali-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.