memory_patch

THE RISK

Medium Risk

Why memory_patch needs a policy

Memory patching writes data directly into process/system memory, which is a Write (or potentially Execute) operation. However, the description explicitly states 'NOT YET IMPLEMENTED', which significantly lowers confidence.

From the tool's definition memory_patch — 'Signature-based patching (.sig files)' indicates writing/modifying memory contents

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

POLICY

How to control memory_patch

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "memory_patch": {
      "limits": [
        {
          "counter": "memory_patch_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

memory_patch stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

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

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Nevercheese Pcileech Memprocfs tools

Execute device_reconnect Reconnect to the DMA/FPGA device after a previous device_disconnect. Execute benchmark Measure DMA read/write throughput in MB/s. Use this to verify the FPGA device Execute fpga_config Read or write the FPGA Execute memory_write Write bytes to the target system Execute signature_resolve Find a byte pattern and resolve the operand to a target address — all in one step. Execute tlp_send Send and/or receive raw PCIe Transaction Layer Packets (TLPs). FPGA devices only. Read aob_scan Array-of-bytes pattern scan with ?? wildcard support in a process Read device_status Check the current DMA/FPGA device connection status.

All 37 Nevercheese Pcileech Memprocfs tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about memory_patch

What does the memory_patch tool do? +

NOT YET IMPLEMENTED. Signature-based patching (.sig files) is a pcileech CLI feature. It is categorised as a Write tool in the Nevercheese Pcileech Memprocfs MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on memory_patch? +

Register the Nevercheese Pcileech Memprocfs MCP server in PolicyLayer and add a rule for memory_patch: 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 Nevercheese Pcileech Memprocfs. Nothing to install.

What risk level is memory_patch? +

memory_patch is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit memory_patch? +

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

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

memory_patch is provided by the Nevercheese Pcileech Memprocfs MCP server (neverdecel/nevercheese-pcileech-memprocfs-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Nevercheese Pcileech Memprocfs tool call.

Start from Nevercheese Pcileech Memprocfs, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →