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Search Passive DNS , found 8 results

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Adversary Infrastructure Tracker

building-adversary-infrastructure-tracking-system

mukul975/Anthropic-Cybersecurity-Skills

Automates discovery and monitoring of threat actor C2 infrastructure by ingesting passive DNS, certificate transparency, WHOIS, and IP enrichment data to build a continuously updated graph of related domains, hosts, and registrars for intelligence or incident response teams.

Open Source Threat Intel

collecting-open-source-intelligence

mukul975/Anthropic-Cybersecurity-Skills

Collects and synthesizes open-source intelligence on threat actors, malicious infrastructure, and campaigns using passive DNS, WHOIS, Shodan, Maltego, and SpiderFoot, supporting reconnaissance, enrichment of CTI reports, and pre-engagement assessments.

External OSINT Reconnaissance

conducting-external-reconnaissance-with-osint

mukul975/Anthropic-Cybersecurity-Skills

Conducts passive OSINT reconnaissance to map an organization’s external attack surface, harvesting DNS, certificate, cloud, personnel, and leak intelligence before active penetration testing or red team work.

DNS Query Exfiltration Detection

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

mukul975/Anthropic-Cybersecurity-Skills

Builds a passive DNS analysis pipeline that flags DNS tunneling attempts by inspecting query entropy, subdomain length, volume spikes, TXT abuses, and response payload sizes so SOCs can detect exfiltrating data hidden in DNS traffic.

DNS Persistence Hunting Guide

hunting-for-dns-based-persistence

mukul975/Anthropic-Cybersecurity-Skills

Step-by-step skill to hunt DNS-based persistence by auditing zone baselines, querying SecurityTrails passive DNS, analyzing provider audit logs, and correlating anomalies to malicious infrastructure for actionable reports.

Comprehensive API Discovery

performing-api-inventory-and-discovery

mukul975/Anthropic-Cybersecurity-Skills

Performs comprehensive API discovery across an organization using passive traffic analysis, active scanning, DNS enumeration, JavaScript scraping, and cloud inventory to catalog documented, shadow, zombie, and deprecated endpoints for security assessments.

Subfinder Subdomain Enumeration

performing-subdomain-enumeration-with-subfinder

mukul975/Anthropic-Cybersecurity-Skills

Use ProjectDiscovery’s Subfinder to passively enumerate target domains’ subdomains, configure API sources, and stream results to httpx/dnsx/nuclei for validation, rate control, and attack-surface mapping during penetration tests or bug bounty reconnaissance.

Tracking Threat Infrastructure

tracking-threat-actor-infrastructure

mukul975/Anthropic-Cybersecurity-Skills

Monitor and map adversary-controlled infrastructure using Shodan, Passive DNS, certificate transparency, and fingerprinting to support CTI workflows and pivot across related assets over time.

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