Dr.Binary

Use when the user wants to analyze a binary file, check if a file is malicious, decompile an executable, or understand what a binary does. Triggers on: "analyze this binary", "is this malicious?", "decompile this exe", "what does this binary do?", "reverse engineer this file".

Dr. Binary Analysis

Required environment variables

• DRBINARY_API_KEY — drbinary.ai → Settings → Billing → API Key

Steps

1. Upload the binary

Run upload.py with the local file path. It uploads the file to the Dr. Binary sandbox and prints the remote path:

bash

python skills/drbinary-analysis/upload.py /path/to/file.exe
# → /sandbox/<pathname>

2. Open Ghidra server

Call the ghidra_open_server MCP tool with the remote sandbox path returned in step 1. This initialises analysis and returns basic file metadata (size, hash, segments, imports, exports, strings, functions).

3. Analyse with Ghidra tools

Use the available MCP tools to perform a thorough analysis:

• ghidra_list_imports — identify suspicious API calls
• ghidra_list_strings — extract strings for IoC identification
• ghidra_list_exports — list exported symbols
• ghidra_decompile_function — decompile key functions to pseudo-C
• ghidra_generate_call_graph — understand program flow
• sandbox_execute — run safe commands (e.g. file, strings, sha256sum)

4. Report

Return a report in this format:

markdown

## Binary Analysis Report

**File Information**
- Name: [filename]
- Size: [bytes]
- SHA256: [hash]

**Analysis Summary**
[Brief overview of findings]

**Detailed Findings**
1. [Finding category]
   - Evidence: [specific data]
   - Significance: [what it means]

**Threat Assessment**
- Severity: [Critical/High/Medium/Low]
- Classification: [malware type or benign]
- Confidence: [High/Medium/Low]

**Recommendations**
1. [Action item]