execute_rev2self · Cobalt Strike MCP Server MCP

WHAT IT DOES

What execute_rev2self does on Cobalt Strike MCP Server

AI agents invoke execute_rev2self 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 execute_rev2self needs a policy

This tool executes a security context modification command on a beacon (compromised host). While not destructive to data and not a read operation, it performs an active operation that changes the runtime state of the compromised system. The high severity reflects that in a multi-stage attack, token management is a critical capability for attackers to maintain control and escalate privileges.

From the tool's definition Tool name 'execute_rev2self' and description 'Revert to self (drop impersonated token)' indicate execution of a Windows security operation that modifies the beacon's current security context by terminating token impersonation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

execute_rev2self Rate-limited

execute_rev2self 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": {
    "execute_rev2self": {
      "limits": [
        {
          "counter": "execute_rev2self_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 execute_rev2self

What does the execute_rev2self tool do? +

Revert to self (drop impersonated token). 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 execute_rev2self? +

Register the Cobalt Strike MCP Server MCP server in PolicyLayer and add a rule for execute_rev2self: 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 execute_rev2self? +

execute_rev2self is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit execute_rev2self? +

Yes. Add a rate_limit block to the execute_rev2self 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 execute_rev2self completely? +

Set action: deny in the PolicyLayer policy for execute_rev2self. 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 execute_rev2self? +

execute_rev2self 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.