nbtscan_netbios
A read tool on the Hexstrike Ai MCP server.
This record as markdown: /tools/hexstrike-ai/nbtscan-netbios.md
What nbtscan_netbios does on Hexstrike Ai
AI agents call nbtscan_netbios to retrieve information from Hexstrike Ai without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why nbtscan_netbios is rated Low
NBTScan is a reconnaissance tool that queries NetBIOS services to discover hosts and network information. This is reconnaissance activity (discovery/enumeration of existing network topology) with no modification, deletion, or code execution involved. While the description is empty (lowering confidence), the tool name and server context (pentesting/reconnaissance workflow) indicate this performs information gathering.
From the tool's definition Tool name 'nbtscan_netbios' indicates NetBIOS network scanning functionality, which passively probes for NetBIOS information on a target network.
Attacks that exploit this kind of access
The rule that runs nbtscan_netbios safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Hexstrike Ai, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For nbtscan_netbios, this is the rule to start with:
nbtscan_netbios is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Hexstrike Ai, apply this rule, and every nbtscan_netbios call is checked against it from then on.
Questions about nbtscan_netbios
nbtscan_netbios is a read tool on the Hexstrike Ai MCP server. It is categorised as a Read tool in the Hexstrike Ai MCP Server, which means it retrieves data without modifying state.
Register the Hexstrike Ai MCP server in PolicyLayer and add a rule for nbtscan_netbios: 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 Hexstrike Ai. Nothing to install.
nbtscan_netbios is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the nbtscan_netbios 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.
Set action: deny in the PolicyLayer policy for nbtscan_netbios. 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.
nbtscan_netbios is provided by the Hexstrike Ai MCP server (0x4m4/hexstrike-ai). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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