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offensive security · open-source tooling · disclosures

Aaron Sullivan
ZerkerEOD

Penetration testing and security advisory by day. In the margins I build the tools I wish I had: KrakenHashes for cracking across a fleet, Porthole for driving coding agents from a phone over my own VPN, and Heimdall for the blue team.

offensive-securityaudit-and-advisorygo-toolingpassword-crackingdisclosures

$ ls projects $ cat blog

operator.confro

handle: ZerkerEOD
name: Aaron Sullivan, M.S.
focus: offensive security, audit and advisory
builds: 3 open-source projects
writes: 1 disclosure and counting
lang: Go · Dart · TypeScript · Python
stack: tmux · Hashcat · Cloudflare · Linux
links: github · x · linkedin

shell

A toy, but a working one. Try help, ls projects, cat krakenhashes, open porthole.

zerkereod@zerkersec: ~bash

zerkereod@zerkersec:~$

featured projects

projects/krakenhashesAGPL-3.0

KrakenHashes active

★ 408 · ⑂ 42 · Go · updated 2026-11-11 · v3.0.1

Distributed password cracking for security teams. Agents wrap Hashcat across every GPU you own, one web UI runs the job.

GoReactPostgreSQLHashcat

github docs releases details

repo ZerkerEOD/krakenhasheslicense AGPL-3.0since 2024

projects/portholeAGPL-3.0

Porthole in development

Go · since 2026

A self-hosted phone remote for Claude Code and Codex sessions. Your machine, your VPN, no cloud relay.

GoFluttertmuxCloudflare Workers

github docs releases details

repo ZerkerEOD/portholelicense AGPL-3.0since 2026

projects/heimdall-listenerGPL-3.0

Heimdall Listener active

★ 3 · ⑂ 2 · Go · updated 2026-11-09 · v2.0.0

Passive sensor for the LLMNR, NetBIOS, mDNS, WPAD and DHCPv6 chatter that Responder, Inveigh and mitm6 feed on, and for hosts that answer like a poisoner.

GoFynelibpcapsystemd

github docs releases details

repo ZerkerEOD/heimdall-listenerlicense GPL-3.0since 2024

all projects →

latest writing

2024-10-20 · 6 min read Vulnerability Disclosure

Udemy - Account Takeover

What happens when security configurations do not work as intended: an MFA gap at Udemy that let a threat actor take over already-compromised accounts, with CVSS scoring and the disclosure timeline.

contact

github x linkedin rss

Aaron SullivanZerkerEOD

shell

featured projects

KrakenHashes active

Porthole in development

Heimdall Listener active

latest writing

Udemy - Account Takeover

contact

Aaron Sullivan
ZerkerEOD