Detect potential C2 beaconing by analyzing connection interval regularity. Finds source-destination pairs with suspiciously consistent callback intervals (low jitter). Higher scores indicate more regular beaconing patterns.
AI agents call zeek_detect_beaconing to retrieve information from Zeek without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs passive analysis and detection of network security patterns from existing Zeek logs without modifying, deleting, or executing external operations. It retrieves insights from security monitoring data—a core Read category function.
From the tool's definition Tool description states it 'analyzes' network data to 'detect' and 'find' beaconing patterns. The verbs are analytical (analyze, detect, find) with no mention of modifying, deleting, or executing external systems.
Attacks that exploit this kind of access
Detect potential C2 beaconing by analyzing connection interval regularity. Finds source-destination pairs with suspiciously consistent callback intervals (low jitter). Higher scores indicate more regular beaconing patterns. It is categorised as a Read tool in the Zeek MCP Server, which means it retrieves data without modifying state.
Register the Zeek MCP server in PolicyLayer and add a rule for zeek_detect_beaconing: 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 Zeek. Nothing to install.
zeek_detect_beaconing 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 zeek_detect_beaconing 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 zeek_detect_beaconing. 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.
zeek_detect_beaconing is provided by the Zeek MCP server (solomonneas/zeek-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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