List all keystroke captures from beacons
AI agents call list_keystrokes to retrieve information from Cobalt Strike MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves previously captured keystroke data from compromised systems (beacons). While categorized as Read, the severity is high because keystroke logs contain sensitive information such as passwords, credentials, private messages, and confidential data. However, the tool itself performs no destructive, financial, or executable operations — it only queries and returns existing data.
From the tool's definition Tool name is 'list_keystrokes' with description 'List all keystroke captures from beacons' — the verb 'List' and 'captures' indicate data retrieval with no modification or side effects.
Attacks that exploit this kind of access
List all keystroke captures from beacons. It is categorised as a Read tool in the Cobalt Strike MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Cobalt Strike MCP Server MCP server in PolicyLayer and add a rule for list_keystrokes: 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 Cobalt Strike MCP Server. Nothing to install.
list_keystrokes 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 list_keystrokes 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 list_keystrokes. 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.
list_keystrokes is provided by the Cobalt Strike MCP Server MCP server (mickeydb/cobalt-strike-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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