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mukul975
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Complete skill folder anatomy across all cybersecurity skills: - scripts/agent.py: 80-150 line Python agents using real libraries (impacket, boto3, azure-mgmt-*, kubernetes, pefile, yara, scapy, shodan, stix2, etc.) - references/api-reference.md: real API documentation with method signatures - LICENSE: MIT license for all skill folders
57 lines
2.0 KiB
Markdown
57 lines
2.0 KiB
Markdown
# API Reference: Phishing Incident Response Agent
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## Overview
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Analyzes phishing emails: parses EML files, extracts URLs and attachment hashes, checks reputation via VirusTotal and urlscan.io, assesses SPF/DKIM/DMARC authentication, and generates severity-rated IR reports.
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## Dependencies
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| Package | Version | Purpose |
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|---------|---------|---------|
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| requests | >=2.28 | VirusTotal and urlscan.io API calls |
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## CLI Usage
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```bash
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python agent.py --eml suspicious_email.eml --vt-key <key> --output report.json
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```
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## Key Functions
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### `parse_email_file(eml_path)`
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Parses EML file extracting Subject, From, To, Received headers, and SPF/DKIM/DMARC authentication results.
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### `extract_urls(msg)`
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Extracts all URLs from email body (plain text and HTML parts) using regex.
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### `extract_attachments(msg)`
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Extracts attachment filenames, content types, sizes, and computes SHA-256/MD5 hashes.
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### `check_url_virustotal(url, api_key)`
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Checks URL reputation on VirusTotal v3 API (malicious, suspicious, harmless counts).
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### `check_url_urlscan(url)`
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Submits URL to urlscan.io for visual and behavioral analysis.
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### `check_hash_virustotal(file_hash, api_key)`
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Checks attachment hash reputation on VirusTotal for malware detection.
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### `assess_phishing_severity(parsed_email, url_results, attachment_results)`
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Rates phishing severity (Low/Medium/Critical) based on auth failures and malicious content.
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## External APIs Used
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| API | Endpoint | Auth | Purpose |
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|-----|----------|------|---------|
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| VirusTotal v3 | `/api/v3/urls/{id}` | API key | URL reputation |
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| VirusTotal v3 | `/api/v3/files/{hash}` | API key | File hash reputation |
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| urlscan.io | `/api/v1/scan/` | None | URL visual analysis |
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## Email Authentication Checks
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| Check | Pass | Fail | Impact |
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|-------|------|------|--------|
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| SPF | Sender IP authorized | Possible spoofing | Severity +1 |
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| DKIM | Signature valid | Message may be tampered | Severity +1 |
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| DMARC | Policy enforced | SPF+DKIM alignment failed | Severity +1 |
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