inject_printscreen · Cobalt Strike MCP Server MCP

WHAT IT DOES

What inject_printscreen does on Cobalt Strike MCP Server

AI agents invoke inject_printscreen to trigger actions in Cobalt Strike MCP Server. 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 IT NEEDS A POLICY

Why inject_printscreen needs a policy

This tool uses injection techniques (a form of code execution within another process) to capture screenshots from a compromised beacon host. Process injection is a significant offensive security capability that executes code in the context of another process, making this Execute category.

From the tool's definition inject mode - tool name 'inject_printscreen' and description 'Print screen (inject mode)' indicate process injection to capture screen content

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

inject_printscreen Rate-limited

inject_printscreen stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Cobalt Strike MCP Server, so you can run agents against it safely.

FAQ

Questions about inject_printscreen

What does the inject_printscreen tool do? +

Print screen (inject mode). It is categorised as a Execute tool in the Cobalt Strike MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on inject_printscreen? +

Register the Cobalt Strike MCP Server MCP server in PolicyLayer and add a rule for inject_printscreen: 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.

What risk level is inject_printscreen? +

inject_printscreen is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit inject_printscreen? +

Yes. Add a rate_limit block to the inject_printscreen 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.

How do I block inject_printscreen completely? +

Set action: deny in the PolicyLayer policy for inject_printscreen. 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.

What MCP server provides inject_printscreen? +

inject_printscreen 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.