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Sliver C2 Infrastructure

building-c2-infrastructure-with-sliver-framework

mukul975/Anthropic-Cybersecurity-Skills

Guide to deploying and hardening a resilient Sliver command-and-control infrastructure, covering team server provisioning, HTTPS/mTLS/DNS/WireGuard listeners, redirectors, implant generation, and post-exploitation operations for authorized red-team engagements.

OSINT External Reconnaissance

conducting-external-reconnaissance-with-osint

mukul975/Anthropic-Cybersecurity-Skills

Uses OSINT techniques to map an organization’s external attack surface without hitting any systems directly; aggregates DNS, certificate, breach, social media, and cloud data for passive reconnaissance before penetration tests or red team engagements.

MitM Attack Simulation

conducting-man-in-the-middle-attack-simulation

mukul975/Anthropic-Cybersecurity-Skills

Simulates MITM scenarios with Bettercap, Ettercap, and mitmproxy in authorized lab settings to validate TLS enforcement, DNS/ARP spoofing detection, credential interception, and defender response workflows through controlled traffic manipulation.

DNS Exfiltration Detection

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

mukul975/Anthropic-Cybersecurity-Skills

Detects DNS tunneling exfiltration by analyzing passive DNS logs for anomalous query entropy, volumes, subdomain length, TXT abuse, and response payloads with statistical and ML techniques to alert on covert data leakage.

Zeek DNS Exfiltration Detection

detecting-exfiltration-over-dns-with-zeek

mukul975/Anthropic-Cybersecurity-Skills

Analyzes Zeek dns.log data to spot DNS-based exfiltration by measuring entropy, label length, subdomain volume, and query rates, then scores and reports suspicious domains for incident response.

Zeek Network Anomaly Detection

detecting-network-anomalies-with-zeek

mukul975/Anthropic-Cybersecurity-Skills

Deploys Zeek to passively monitor network traffic, emit structured connection/DNS/HTTP/SSL logs, and run custom scripts that flag anomalous behavior for threat hunting and incident response teams.

Shadow IT Cloud Detection

detecting-shadow-it-cloud-usage

mukul975/Anthropic-Cybersecurity-Skills

Detects unauthorized shadow IT SaaS and cloud usage by parsing proxy, DNS, and netflow logs, classifying domains, measuring traffic volumes, and ranking high-risk services for remediation.

Data Exfiltration Hunt

hunting-for-data-exfiltration-indicators

mukul975/Anthropic-Cybersecurity-Skills

Conduct proactive threat hunts for data exfiltration by analyzing network transfers, spotting DNS tunneling, cloud uploads, and encrypted channel abuse to validate suspicious outbound flows in incident response.

DNS Persistence Hunting

hunting-for-dns-based-persistence

mukul975/Anthropic-Cybersecurity-Skills

Hunt DNS persistence by exporting zone baselines, querying SecurityTrails passive history, and auditing provider logs to spot hijacks, dangling records, and unauthorized delegations.

Zeek DNS Tunneling Hunt

hunting-for-dns-tunneling-with-zeek

mukul975/Anthropic-Cybersecurity-Skills

Detect DNS tunneling data exfiltration by analyzing Zeek dns.log for high-entropy subdomains, long queries, unusual record types, and elevated volume, correlating with connection metadata and threat intelligence.

Canarytoken Deception Detection

implementing-deception-based-detection-with-canarytoken

mukul975/Anthropic-Cybersecurity-Skills

Automates Canary Tokens creation and monitoring via the Thinkst Canary API to deploy web, DNS, document, and AWS key tripwires, track alerts, and produce deception coverage reports for breach detection.

Email Authentication Audit

implementing-email-security-with-dmarc-dkim-spf

mukul975/Anthropic-Cybersecurity-Skills

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.

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