inject_screenshot · Cobalt Strike MCP Server MCP

WHAT IT DOES

What inject_screenshot does on Cobalt Strike MCP Server

AI agents invoke inject_screenshot 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_screenshot needs a policy

Inject-mode screenshot involves process injection into a target system, which is an active execution operation (injecting code into a remote process) rather than a passive read. It runs code in the context of another process on a compromised host, enabling covert surveillance.

From the tool's definition 'inject mode' and 'Take screenshot' — the tool injects into a remote process on a compromised beacon to capture screen contents

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

inject_screenshot Rate-limited

inject_screenshot 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_screenshot": {
      "limits": [
        {
          "counter": "inject_screenshot_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_screenshot

What does the inject_screenshot tool do? +

Take screenshot (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_screenshot? +

Register the Cobalt Strike MCP Server MCP server in PolicyLayer and add a rule for inject_screenshot: 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_screenshot? +

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

Can I rate-limit inject_screenshot? +

Yes. Add a rate_limit block to the inject_screenshot 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_screenshot completely? +

Set action: deny in the PolicyLayer policy for inject_screenshot. 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_screenshot? +

inject_screenshot 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.