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.vscode	.vscode
logs	logs
node_modules	node_modules
IMPLEMENTATION.md	IMPLEMENTATION.md
README.md	README.md
commands.js	commands.js
index.js	index.js
loader.js	loader.js
package-lock.json	package-lock.json
package.json	package.json
serverMCP.js	serverMCP.js
terminalManager.js	terminalManager.js
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MalwareAnalyzerMCP

A specialized MCP server for Claude Desktop that allows executing terminal commands for malware analysis.

Features

• Execute terminal commands with configurable timeouts
• Read output from running or completed processes
• Specialized malware analysis commands (file, strings, hexdump, objdump, xxd)
• Clean process management with graceful shutdowns
• Pure JavaScript implementation - no build step required

Installation

Install dependencies

npm install

Usage

Running the Server

Start the server directly

node index.js

Or use npm script

npm start

With debugging proxy (logs all communications)

npm run debug

Integration with Claude Desktop

To integrate this MCP server with Claude Desktop:

1. Open Claude Desktop's settings (Claude menu → Settings)
2. Click on "Developer" and then "Edit Config"
3. Update your configuration to include:

{ "mcpServers": { "MalwareAnalysisMCP": { "command": "node", "args": [ "/path/to/MalwareAnalysisMCP/index.js" ] } } }

Note: Replace /path/to/MalwareAnalysisMCP with the actual path to your project directory.

1. Restart Claude Desktop

Debugging

To see all communication between Claude Desktop and the MCP server:

1. Update your Claude Desktop configuration to use the debug proxy:

{ "mcpServers": { "MalwareAnalysisMCP": { "command": "node", "args": [ "/path/to/MalwareAnalysisMCP/mcp-debug-proxy.js" ] } } }

1. Check the logs in the logs directory

Compatibility Notes

• Requires Node.js 18 or higher
• Compatible with Node.js v22+ using ESM modules

API

Basic Tools

shell_command

Executes a terminal command and returns its process ID, output, and blocked status.

Parameters:

• command (string): The command to execute in the terminal
• timeout_ms (number, optional): Timeout in milliseconds (default: 30000)

Returns:

• pid (number): Process ID
• output (string): Command output
• isBlocked (boolean): Whether the command execution is blocked/timed out

read_output

Reads output from a running or completed process.

Parameters:

• pid (number): The process ID to read output from

Returns:

• output (string | null): The process output, or null if the process is not found

Specialized Malware Analysis Tools

The following specialized tools are available for malware analysis:

file

Analyze a file and determine its type.

Parameters:

• target (string): Target file to analyze
• options (string, optional): Additional command-line options

Example:

{ "target": "suspicious.exe", "options": "-b" }

strings

Extract printable strings from a file.

Parameters:

• target (string): Target file to analyze
• minLength (number, optional): Minimum string length to display
• encoding (string, optional): String encoding (s=7-bit, S=8-bit, b=16-bit big-endian, l=16-bit little-endian, etc.)
• options (string, optional): Additional command-line options

Example:

{ "target": "suspicious.exe", "minLength": 10, "encoding": "l" }

hexdump

Display file contents in hexadecimal format.

Parameters:

• target (string): Target file to analyze
• length (number, optional): Number of bytes to display
• offset (number, optional): Starting offset in the file
• options (string, optional): Additional command-line options

Example:

{ "target": "suspicious.exe", "length": 256, "offset": 1024 }

objdump

Display information from object files.

Parameters:

• target (string): Target file to analyze
• disassemble (boolean, optional): Disassemble executable sections
• headers (boolean, optional): Display the contents of the section headers
• options (string, optional): Additional command-line options

Example:

{ "target": "suspicious.exe", "disassemble": true }

xxd

Create a hexdump with ASCII representation.

Parameters:

• target (string): Target file to analyze
• length (number, optional): Number of bytes to display
• offset (number, optional): Starting offset in the file
• cols (number, optional): Format output into specified number of columns
• bits (boolean, optional): Switch to bits (binary) dump
• options (string, optional): Additional command-line options

Example:

{ "target": "suspicious.exe", "cols": 16, "bits": true }

License

ISC

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