# get_listener_externalC2 Get ExternalC2 listener details Agent View of the PolicyLayer registry record for `get_listener_externalC2`. HTML page: https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/get-listener-externalc2 ## Facts - Tool: `get_listener_externalC2` - Server: Cobalt Strike MCP Server (`mickeydb/cobalt-strike-mcp`) — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp.md - Homepage: https://github.com/MickeyDB/Cobalt-Strike-MCP - Risk category: Read (Low risk) - Registry record: grade F, identity unverified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Allowed ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "get_listener_externalC2", "arguments": {} } } ``` ## Why get_listener_externalC2 is rated Low This tool retrieves listener configuration information without modifying, deleting, or executing operations. However, it receives 'high' severity rather than 'low' because it accesses sensitive red team infrastructure details (C2 listener configuration) that could be weaponized by an AI agent to understand attacker command-and-control setup, facilitate lateral movement, or compromise operational security of ongoing… From the tool's own definition: "Tool name 'get_listener_externalC2' and description 'Get ExternalC2 listener details' indicate data retrieval with no modification. The tool queries configuration details of a Cobalt Strike ExternalC2 listener, which is a read-only operation." ## Use case AI agents call get_listener_externalC2 to retrieve information from Cobalt Strike MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere. ## Recommended policy (PolicyLayer) Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Cobalt Strike MCP Server: ```json { "version": "1", "default": "deny", "tools": { "get_listener_externalC2": {} } } ``` ## Other tools on Cobalt Strike MCP Server (219) - `beacon_delete_file` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/beacon-delete-file.md - `clear_beacon_command_queue` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/clear-beacon-command-queue.md - `delete_credential` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/delete-credential.md - `delete_listener` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/delete-listener.md - `delete_listener_dns` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/delete-listener-dns.md - `delete_listener_externalC2` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/delete-listener-externalc2.md - `delete_listener_foreignHttp` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/delete-listener-foreignhttp.md - `delete_listener_foreignHttps` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/delete-listener-foreignhttps.md - `delete_listener_http` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/delete-listener-http.md - `delete_listener_https` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/delete-listener-https.md - `delete_listener_smb` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/delete-listener-smb.md - `delete_listener_tcp` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/delete-listener-tcp.md - `delete_listener_userDefinedC2` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/delete-listener-userdefinedc2.md - `execute_kerberos_ticket_purge` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/execute-kerberos-ticket-purge.md - `execute_socks_stop_all` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/execute-socks-stop-all.md - `execute_tokenStore_remove` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/execute-tokenstore-remove.md - `execute_tokenStore_removeAll` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/execute-tokenstore-removeall.md - `kill_beacon` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/kill-beacon.md - `reset_data` — Destructive — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/reset-data.md - `beacon_change_directory` — Execute — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/beacon-change-directory.md - `beacon_copy_file` — Execute — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/beacon-copy-file.md - `create_listener` — Execute — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/create-listener.md - `create_listener_dns` — Execute — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/create-listener-dns.md - `create_listener_externalC2` — Execute — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/create-listener-externalc2.md - `create_listener_foreignHttp` — Execute — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/create-listener-foreignhttp.md - `create_listener_foreignHttps` — Execute — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/create-listener-foreignhttps.md - `create_listener_http` — Execute — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/create-listener-http.md - `create_listener_https` — Execute — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/create-listener-https.md - `create_listener_smb` — Execute — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/create-listener-smb.md - `create_listener_tcp` — Execute — https://policylayer.com/tools/mickeydb-cobalt-strike-mcp/create-listener-tcp.md - …and 189 more: https://policylayer.com/tools/mickeydb-cobalt-strike-mcp.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=mickeydb-cobalt-strike-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/mickeydb-cobalt-strike-mcp