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Security Best Practices

security-best-practices

tech-leads-club/agent-skills

Guides identifying languages and frameworks in the current project, loading the relevant references, and applying language-specific security best practices to write secure-by-default code, passively flag major vulnerabilities, or deliver structured security reports when requested.

Adversary Infrastructure Tracker

building-adversary-infrastructure-tracking-system

mukul975/Anthropic-Cybersecurity-Skills

Automates tracking of adversary infrastructure by combining passive DNS, certificate transparency, WHOIS, and enrichment APIs to map C2 networks, detect new domains, and continuously update relationships for threat intelligence teams.

Open Source Intelligence Collector

collecting-open-source-intelligence

mukul975/Anthropic-Cybersecurity-Skills

Collects and correlates OSINT about threat actors, infrastructure, and campaigns using tools like Maltego, Shodan, SpiderFoot, and passive DNS/WHOIS lookups, helping analysts enrich CTI reports or prep authorized reconnaissance before red-team engagements.

External Reconnaissance With OSINT

conducting-external-reconnaissance-with-osint

mukul975/Anthropic-Cybersecurity-Skills

Guides security testers through passive OSINT reconnaissance to map an organization’s external attack surface, harvest DNS/infrastructure records, profile personnel, and check leaked credentials before any active probing.

DNS Exfiltration Detection

detecting-dns-exfiltration-with-dns-query-analysis

mukul975/Anthropic-Cybersecurity-Skills

Detect DNS tunneling data exfiltration by analyzing query entropy, subdomain length, query volumes, TXT abuse, and response payload sizes using passive DNS logs, enabling SOC analysts to hunt and validate DNS-based threats.

Zeek Network Anomaly Detection

detecting-network-anomalies-with-zeek

mukul975/Anthropic-Cybersecurity-Skills

Deploys Zeek as a passive network security monitor to capture traffic at chokepoints, produce structured logs, and run custom detection scripts for anomalies, enabling SIEM ingestion and threat hunting during incident response.

Hunt DNS Persistence

hunting-for-dns-based-persistence

mukul975/Anthropic-Cybersecurity-Skills

Hunt for DNS-based persistence with SecurityTrails passive DNS, audit logs, and zone transfer reviews to detect hijacks, dangling CNAMEs, wildcard abuse, and unauthorized NS/TXT changes, then report anomalies in JSON with remediation guidance.

Nozomi OT Traffic Analysis

implementing-ot-network-traffic-analysis-with-nozomi

mukul975/Anthropic-Cybersecurity-Skills

Guides passive OT network monitoring with Nozomi Guardian sensors to map assets, surface high-severity alerts, and spot protocol-aware anomalies without touching live devices, ideal for SOCs melding OT telemetry into platforms like Splunk or ServiceNow.

API Inventory Discovery

performing-api-inventory-and-discovery

mukul975/Anthropic-Cybersecurity-Skills

Performs comprehensive API inventory and discovery across documented, undocumented, shadow, zombie, and deprecated surfaces by combining passive traffic analysis, active scanning, DNS enumeration, JavaScript parsing, and cloud inventory to map OWASP API9 risks.

Claroty ICS Asset Discovery

performing-ics-asset-discovery-with-claroty

mukul975/Anthropic-Cybersecurity-Skills

Automates Claroty xDome ICS/OT asset discovery via passive monitoring, Edge active queries, and integration hooks to inventory PLCs, RTUs, HMIs, and network infrastructure for compliance and situational awareness.

Claroty OT Vulnerability Assessment

performing-ot-vulnerability-assessment-with-claroty

mukul975/Anthropic-Cybersecurity-Skills

Leverage Claroty xDome for OT vulnerability assessments, combining passive/active discovery, CVE/ICS-CERT correlation, and risk-based prioritization so teams can meet IEC 62443/NERC CIP requirements and plan fixes during tight maintenance windows.

Safe OT Vulnerability Scan

performing-ot-vulnerability-scanning-safely

mukul975/Anthropic-Cybersecurity-Skills

Guides safe OT/ICS vulnerability assessments using Tenable OT Security with passive monitoring, native protocol queries, and tightly controlled active scans so industrial processes stay stable while compliance and risk-based patching insights are gathered.

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