Skill UI

A comprehensive, step-by-step checklist and audit script designed for validating Customer.io integrations before going live. It covers credential verification, email deliverability setup (SPF, DKIM, DMARC), API connectivity smoke tests, campaign readiness, and setting up operational monitoring alerts for a smooth, reliable production launch.

A comprehensive guide and workflow for digital forensics investigators to analyze raw email headers. This tool helps trace the true origin of suspicious emails, verify sender authenticity, and detect advanced spoofing techniques by validating crucial protocols like SPF, DKIM, and DMARC. It covers everything from header parsing to domain infrastructure analysis and IP reputation checks.

This guide details the end-to-end process of conducting a sophisticated spearphishing simulation campaign, mirroring real red team adversary techniques. It covers initial OSINT research and pretext development, building weaponized payloads that bypass security controls, setting up robust email infrastructure (SPF/DKIM/DMARC), executing the campaign in waves, and performing detailed post-campaign metrics analysis for comprehensive security reporting.

This guide details the end-to-end process for executing authorized phishing simulations. It instructs security teams and red teams on designing realistic social engineering pretexts, setting up credential harvesting infrastructure (using tools like GoPhish), and measuring key metrics such as open rates, click-through rates, and credential submission rates. It is crucial for assessing organizational human security awareness and testing email security controls (e.g., DMARC, SPF, DKIM).

This guide details the implementation of the three core email authentication protocols: SPF, DKIM, and DMARC. By configuring these DNS records, users can prevent domain spoofing, ensure message integrity, and define strict policies (quarantine/reject) for unauthenticated emails, drastically reducing exposure to phishing and spoofing attacks.

Audits a domain’s email authentication by querying SPF, DKIM, and DMARC DNS records using dnspython, validating syntax/counts, flagging common spoofing risks, and producing remediation guidance.

This guide provides comprehensive security hardening procedures for enterprise Google Workspace environments. It covers advanced topics such as enforcing phishing-resistant Multi-Factor Authentication (MFA), configuring email authentication (DMARC/SPF/DKIM), implementing Data Loss Prevention (DLP), and securing super admin accounts using Advanced Protection Program enrollment. Ideal for achieving high compliance and defending against BEC and phishing attacks.

A comprehensive guide for SOC analysts and digital forensics experts. This skill covers the entire lifecycle of a phishing incident, from initial user report and header analysis (SPF, DKIM, DMARC) to detonating malicious URLs/attachments in sandboxes. It guides users on scoping the attack, identifying impacted users via SIEM/proxy logs, and executing containment measures like email purges.

A comprehensive guide for safely rolling out and enforcing DMARC policies. This process involves inventorying all legitimate email sending sources, configuring SPF/DKIM alignment, and gradually progressing the DNS policy from monitoring (p=none) to full rejection (p=reject). Essential for meeting modern bulk-sender authentication requirements and preventing email spoofing.

A comprehensive guide for authorized penetration testing to map a target's entire DNS infrastructure. This skill covers advanced techniques including enumerating various DNS record types (A, MX, TXT, SRV), attempting zone transfers (AXFR/IXFR), brute-forcing subdomains, and analyzing security configurations (DNSSEC, SPF, DMARC). It is crucial for identifying the full external attack surface of a target organization.

A comprehensive skill for building robust Command Line Interface (CLI) applications in Go using the spf13/cobra library. This skill covers the entire lifecycle of a CLI, including defining command/subcommand trees, managing persistent and local flags, implementing complex argument validators, and utilizing the hook chain (PreRunE, RunE, etc.). It is essential for creating professional, Unix-native command-line tools.

Details the use of spf13/viper for robust, layered configuration management in Go applications. It ensures that configuration values are resolved correctly from multiple sources—such as command flags, environment variables, configuration files (YAML, JSON), and default settings—following a strict precedence order. Essential for building complex CLI tools and daemons.