# darkr4y/geacon

Practice Go programming and implement CobaltStrike's Beacon in Go

Repository: https://github.com/darkr4y/geacon
Canonical: https://ross.abutalabs.com/products/geacon
Language: Go
License Family: other
Topics: go, golang, cobaltstrike, beacon, reverse-engineering
Last push: 2020-10-02T10:34:37+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 2392, "days_push": 2161, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1266, forks 205 (observed 2026-08-28T04:04:11.078372+00:00)

## What it is
Geacon is a Go implementation of CobaltStrike's Beacon implant, built to study the C2 protocol through reverse engineering. It supports command execution, file upload/download, and file browsing against CobaltStrike 4.x team servers.

## Use cases
- implement a cobaltstrike beacon in go
- learn cobaltstrike c2 protocol analysis
- test red team tooling against a teamserver
- study how beacon communicates with team server
- cross-platform implant for security research
- reverse engineer cobaltstrike network protocol

## When to choose
- you want to learn or research the CobaltStrike Beacon protocol in Go
- you need a lightweight open-source beacon for authorized red team testing on Linux or macOS
- you are studying protocol reverse engineering techniques

## When to avoid
- you need full CobaltStrike feature parity or custom C2 profiles
- you want a maintained production-grade implant with a license
- you cannot legally use offensive security tooling in your jurisdiction

## Facets
- artifact type: application
- maturity: maintenance
- function: security, reverse-engineering, networking
- domain: security, penetration-testing, reverse-engineering
- platform: windows, go, cross-platform
- tags: cobaltstrike, beacon, c2, red-team, protocol-analysis, offensive-security, linux, macos

## Member repositories
- darkr4y/geacon (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:11.078372+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T05:03:46.873904+00:00, confidence not recorded.
  - readme: https://github.com/darkr4y/geacon (fetched 2026-08-28T04:04:11.078372+00:00, sha 05d7de45ebf5)
- Data as of 2026-08-30T08:39:29.467469+00:00.