// MCP TOOL REFERENCE

attach

附加到运行中的进程，并可选注入脚本。 Args: - target: PID 字符串或包名 - initial_script: 可选注入的 Frida JS 代码字符串 - script_file_path: 可选注入的 JS 文件绝对路径（优先于 initial_script） - output_file: 可选的本地电脑文件路径，用于保存 hook 输出（非安卓设备路径） Returns: - {status, pid, target, name, script_loaded, message}

ServerFrida
CategoryExecute

How to control attach ↓

WHAT ATTACH ON FRIDA DOES

AI agents invoke attach to trigger actions in Frida. 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.

THE RISK

High Risk

This tool attaches to a live Android process and injects arbitrary JavaScript via Frida. Dynamic instrumentation/code injection into running processes is a classic Execute-category action.

From the tool's definition 附加到运行中的进程，并可选注入脚本 (attach to running process with optional script injection); 'initial_script: 可选注入的 Frida JS 代码字符串' (inject arbitrary Frida JS code); 'script_file_path: 可选注入的 JS 文件绝对路径'

Documented attack patterns abuse exactly the kind of access attach gives an agent:

HOW TO CONTROL ATTACH

PolicyLayer is an MCP gateway — it sits between your AI agents and Frida, and nothing reaches the server without passing your rules. This is the rule we recommend for attach:

policy.json

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

attach 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.

Create a free account and register Frida — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

More Frida tools

Execute start_frida_server 启动设备上的 frida-server。 - 来源: 使用 config.json 的 server_path/server_name/server_port - Execute stop_frida_server 停止设备上的 frida-server。 - 返回: {status, message} Execute spawn 拉起应用（挂起态）并附加，可选在恢复前注入脚本。 Args: - package_name: 应用包名 - initial_script: 可选注 Read check_frida_status 检测 frida-server 是否在运行。 - 返回: {status, running} Read get_frontmost_application 获取当前前台应用信息。 - 返回: {status, application?{identifier,name,pid}, message?} Read get_messages 获取全局 hook/log 文本缓冲（非消费模式）。 Args: - max_messages: 返回的最大条数（默认 100） Returns: Read list_applications 列出设备上的已安装应用（含运行与未运行）。 - 返回: {status, count, applications:[{identifier,name,pid?}]}

All 8 Frida tools →

Execute tools on other servers

Frida Game Hacking MCP remove_breakpoint Procmon request_elevation WireMCP capture_packets Pentest Ai run_probe

Go deeper

High-risk tools in Frida → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

What does the attach tool do? +

How do I enforce a policy on attach? +

Register the Frida MCP server in PolicyLayer and add a rule for attach: 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 Frida. Nothing to install.

What risk level is attach? +

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

Can I rate-limit attach? +

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

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

attach is provided by the Frida MCP server (zhizhuodemao/frida-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Frida tool call.

Deterministic rules across all 8 Frida tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

GOVERN FRIDA →

Free to start. No card required.

8 Frida tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

attach

// WHAT ATTACH ON FRIDA DOES

// THE RISK

// HOW TO CONTROL ATTACH

// EXPLORE