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How to triage a binary by strings, patterns, and references with X64 DBG MCP Server

Use an AI assistant to scan a loaded module for strings, byte patterns, and call or jump references.

Authorization notice. X64 DBG MCP Server is dual-use. Only use it on software, sites and systems you own or have explicit permission to test.

Reverse engineering. Triage of malware or proprietary binaries should follow your organization's authorization and handling rules.

Who it is forA security researcher who needs a fast first pass over an unfamiliar module before choosing where to debug.

The problemFinding interesting strings, byte sequences, and callers across a module by hand takes time, especially in unfamiliar code.

The outcomeThe assistant returns matching strings, pattern hits, and xrefs to a target address, which helps you choose breakpoints and functions to study.

What you need first

  • Windows with x64dbg installed, or a Windows target for the plugin
  • The release contents of dist/ or Zig 0.16-dev or later to build from source
  • An MCP-compatible AI assistant client that can send HTTP requests with a Bearer token
  • Authorization to analyze the target software

Steps

  1. Build or download the plugin and copy dist/ into your x64dbg root folder.
  2. Launch x64dbg and load the target so the module is in memory.
  3. Add the MCP server entry to your client config with the Bearer token.
  4. Ask the assistant to run GetStrings, FindPattern with ?? wildcards, and GetReferences on an address of interest.
  5. Ask for GetFunctions to map the results to analyzed functions.

Prompt for your agent

Using the x64dbg-MCP-Server tools at http://localhost:9094/ with my Bearer token, run GetStrings and FindPattern with ?? wildcards on <module name>, then GetReferences for <target address>. Report the matching strings, pattern hits, and callers. Verify that each reported address falls inside the module range from ListModules.

Caveat. The README describes these tools by name and short summary only, so confirm the output format for GetStrings and FindPattern on your own target before relying on it.

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