Individual skill

hunting-for-dns-based-persistence

Hunts for DNS-based persistence mechanisms such as DNS hijacking, dangling CNAME records enabling subdomain takeover, wildcard DNS abuse, and unauthorized zone or NS delegation changes, using passive DNS history (SecurityTrails API), Route53/Azure DNS/Cloudflare audit logs, and zone transfer analysis. Use when investigating suspected DNS hijacking or subdomain takeover, or when threat hunting for DNS record tampering that persists across credential rotations and endpoint reimaging.

skills/hunting-for-dns-based-persistence/SKILL.md

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Observed behavior: Not checked yet
Last checked: Nov 9, 2026

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Repository context

Repository stars (not skill ratings): 36,011
Repository last updated: Aug 31, 2026
License: Apache-2.0

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

ai-agents Repository topic
claude-code Repository topic
cybersecurity Repository topic
incident-response Repository topic
mitre-attack Repository topic
penetration-testing Repository topic
red-team Repository topic
security Repository topic
cloud-security Repository topic
malware-analysis Repository topic
dns Declared skill tag
persistence Declared skill tag
threat-hunting Declared skill tag
passive-dns Declared skill tag
dns-hijacking Declared skill tag
subdomain-takeover Declared skill tag
securitytrails Declared skill tag
security Derived category

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LICENSEasset · 11,255 bytes
SKILL.mdcore · 3,160 bytes
references/api-reference.mddoc · 2,657 bytes
scripts/agent.pyruns · 6,759 bytes

Read excerpt


# Hunting for DNS-based Persistence

## Overview

Attackers establish DNS-based persistence by hijacking DNS records, creating unauthorized subdomains, abusing wildcard DNS entries, or modifying NS delegations to redirect traffic through attacker-controlled infrastructure. These techniques survive credential rotations, endpoint reimaging, and traditional remediation because DNS changes persist independently of compromised hosts. Detection requires passive DNS historical analysis, zone file auditing, and monitoring for unauthorized record modifications. This skill covers hunting methodologies using SecurityTrails passive DNS API, DNS audit logs from Route53/Azure DNS/Cloudflare, and zone transfer analysis.


## When to Use

- When investigating security incidents that require hunting for dns based persistence
- When building detection rules or threat hunting queries for this domain
- When SOC analysts need structured procedures for this analysis type
- When validating security monitoring coverage for related attack techniques