Individual skill
analyzing-dns-logs-for-exfiltration
Analyzes DNS query logs to detect data exfiltration via DNS tunneling, DGA domain communication, and covert C2 channels using entropy analysis, query volume anomalies, and subdomain length detection in SIEM platforms. Use when SOC teams need to identify DNS-based threats that bypass traditional network security controls.
skills/analyzing-dns-logs-for-exfiltration/SKILL.md
Source commit 54a798831d2266a3ca61ce68a7acb80b81160d57
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- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- Yes
- Repository scan complete
- No
- Skill scan complete
- No
- Observed behavior
- Network or broad shell
- Last checked
- Nov 9, 2026
These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.
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Repository context
- Repository stars (not skill ratings)
- 35,913
- 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
- soc Declared skill tag
- dns Declared skill tag
- exfiltration Declared skill tag
- dns-tunneling Declared skill tag
- dga Declared skill tag
- c2-detection Declared skill tag
- splunk Declared skill tag
- threat-detection Declared skill tag
- security Derived category
- data Derived category
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Browse files
LICENSEasset · 11,255 bytesSKILL.mdcore · 11,545 bytesSKILL.mdcore · 11,545 bytesreferences/api-reference.mddoc · 2,708 bytesscripts/agent.pyruns · 8,704 bytes
Read excerpt
# Analyzing DNS Logs for Exfiltration
## When to Use
Use this skill when:
- SOC teams suspect data exfiltration through DNS tunneling to bypass firewall/proxy controls
- Threat intelligence indicates adversaries using DNS-based C2 channels (e.g., Cobalt Strike DNS beacon)
- UEBA detects anomalous DNS query volumes from specific hosts
- Malware analysis reveals DNS-over-HTTPS (DoH) or DNS tunneling capabilities
**Do not use** for standard DNS troubleshooting or availability monitoring — this skill focuses on security-relevant DNS abuse detection.
## Prerequisites
- DNS query logging enabled (Windows DNS Server, Bind, Infoblox, or Cisco Umbrella)