responder_credential_harvest

What responder_credential_harvest does on Nyxstrike

AI agents invoke responder_credential_harvest to trigger actions in Nyxstrike. 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 responder_credential_harvest is rated High

Responder is a widely-known offensive security tool that performs LLMNR/NBT-NS/MDNS poisoning to capture network credentials (NTLM hashes, cleartext passwords). The name 'credential_harvest' makes the intent explicit. This constitutes an active network attack/execution operation. Even in a legitimate pen-testing context, misuse could compromise real credentials across a network, warranting critical severity.

From the tool's definition Tool name: 'responder_credential_harvest' — 'responder' is a well-known network poisoning/credential harvesting tool; 'credential_harvest' explicitly indicates capturing authentication credentials from a network.

The rule that runs responder_credential_harvest safely

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

{
  "version": "1",
  "default": "deny",
  "tools": {
    "responder_credential_harvest": {
      "limits": [
        {
          "counter": "responder_credential_harvest_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

Questions about responder_credential_harvest