Ross ROSS = Recommend OSS · open-source software intelligence for agents

m57/dnsteal

DNS Exfiltration tool for stealthily sending files over DNS requests. observed · 2026-08-28

github.com/m57/dnsteal · Python · GPL-2.0 (copyleft) observed · 2026-08-28

Health v2 · maintenance only

32/100

  • Activity 0
  • Release rhythm 35
  • Longevity 100

Flags: no_releases

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 4040
  • days_rel: n/a
  • days_push: 1672
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

1730 stars · 232 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

dnsteal is a fake DNS server written in Python that enables stealthy exfiltration of files from a victim machine via DNS requests. It supports multiple file transfers, gzip compression, and customizable subdomain encoding parameters.

Use cases

  • exfiltrate files from a compromised machine over DNS
  • test data loss prevention (DLP) and egress filtering controls
  • demonstrate DNS tunneling in security assessments
  • simulate covert channel attacks in red team exercises
  • transfer files out of networks that only allow DNS traffic

When to choose

  • you need to demonstrate or test DNS-based data exfiltration during a penetration test
  • you want a lightweight, single-file Python tool with no dependencies
  • you need to validate whether a network's security controls detect DNS tunneling

When to avoid

  • you need a general-purpose DNS server or DNS tunneling client for legitimate remote access
  • you require high-throughput or reliable file transfer over a controlled network
  • you need a maintained tool with active development and modern features

Facets

cli-tool · maturity maintenance

networking security cli security penetration-testing networking python windows cross-platform dns-exfiltration data-exfiltration fake-dns-server red-team penetration-testing-tools command-line linux macos

1 source

Member repositories

RepositoryRoleHealth v2
m57/dnstealmain32

For agents

markdown · JSON · MCP: product_card(name="m57/dnsteal")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem