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@SoftCreatR
SoftCreatR / README.md
Created May 25, 2024 13:57
This is a proof of concept (PoC) for Hetzner's "Heray" Proof of Work (PoW) Captcha. Please note that this is neither functional nor the original code. It simply demonstrates how the system could work based on observed patterns and assumptions.

Proof of Concept for Hetzner's "Heray" PoW Captcha

This is a proof of concept (PoC) for Hetzner's "Heray" Proof of Work (PoW) Captcha. Please note that this is neither functional nor the original code. It simply demonstrates how the system could work based on observed patterns and assumptions.

Overview

Hetzner's "Heray" PoW Captcha likely requires the client to solve a computational puzzle as a form of CAPTCHA, where a specific condition must be met for the challenge to be accepted. The solution involves generating a specific mainbytes value based on given uuid and hsum values.

Process

@xates
xates / hotkeys.ahk
Created November 28, 2018 15:16
AutoHotkey script to simulate hotkeys provided in Ubuntu with Italian keyboard on Windows
#NoEnv
#SingleInstance Force
SendMode Input
; Send ` when pressing ALT GR + '
<^>!'::Send ``
; Send ~ when pressing ALT GR + ì
<^>!ì::Send ~
; Send uppercase accented letters when caps lock is active
@mohanpedala
mohanpedala / bash_strict_mode.md
Last active November 13, 2025 00:27
set -e, -u, -o, -x pipefail explanation

WannaCry|WannaDecrypt0r NSA-Cyberweapon-Powered Ransomware Worm

  • Virus Name: WannaCrypt, WannaCry, WanaCrypt0r, WCrypt, WCRY
  • Vector: All Windows versions before Windows 10 are vulnerable if not patched for MS-17-010. It uses EternalBlue MS17-010 to propagate.
  • Ransom: between $300 to $600. There is code to 'rm' (delete) files in the virus. Seems to reset if the virus crashes.
  • Backdooring: The worm loops through every RDP session on a system to run the ransomware as that user. It also installs the DOUBLEPULSAR backdoor. It corrupts shadow volumes to make recovery harder. (source: malwarebytes)
  • Kill switch: If the website www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com is up the virus exits instead of infecting the host. (source: malwarebytes). This domain has been sinkholed, stopping the spread of the worm. Will not work if proxied (source).

update: A minor variant of the viru

@alastairmccormack
alastairmccormack / iframe-probe.py
Last active March 31, 2025 06:32
Shows GOP structure for video file using ffmpeg --show-frames output
#!/usr/bin/env python
#
# Shows GOP structure of video file. Useful for checking suitability for HLS and DASH packaging.
# Example:
#
# $ iframe-probe.py myvideo.mp4
# GOP: IPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP 60 CLOSED
# GOP: IPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP 60 CLOSED
# GOP: IPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP 60 CLOSED
# GOP: IPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP 60 CLOSED
@tenowg
tenowg / RedisJobQueue.cs
Last active June 10, 2025 14:23
A Message/Job Queue based on StackExchange.Redis and Redis Server
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using StackExchange.Redis;
namespace CitySurvival.Redis
{
var mediaJSON = { "categories" : [ { "name" : "Movies",
"videos" : [
{ "description" : "Big Buck Bunny tells the story of a giant rabbit with a heart bigger than himself. When one sunny day three rodents rudely harass him, something snaps... and the rabbit ain't no bunny anymore! In the typical cartoon tradition he prepares the nasty rodents a comical revenge.\n\nLicensed under the Creative Commons Attribution license\nhttp://www.bigbuckbunny.org",
"sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4" ],
"subtitle" : "By Blender Foundation",
"thumb" : "images/BigBuckBunny.jpg",
"title" : "Big Buck Bunny"
},
{ "description" : "The first Blender Open Movie from 2006",
"sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4" ],
@samwize
samwize / mocha-guide-to-testing.js
Created February 8, 2014 05:53
Explain Mocha's testing framework - describe(), it() and before()/etc hooks
// # Mocha Guide to Testing
// Objective is to explain describe(), it(), and before()/etc hooks
// 1. `describe()` is merely for grouping, which you can nest as deep
// 2. `it()` is a test case
// 3. `before()`, `beforeEach()`, `after()`, `afterEach()` are hooks to run
// before/after first/each it() or describe().
//
// Which means, `before()` is run before first it()/describe()
@John07
John07 / HLS_dvr.sh
Last active August 19, 2024 09:03
A small script to make recording http live streams (HLS, those streams that work on iOS devices) nicer on a Mac. Script records the stream for a defined period of time and sends the user notifications if anything goes wrong and once it's done.
# required: ffmpeg (e.g. from homebrew), terminal-notifier from https://github.com/alloy/terminal-notifier
# you can schedule this with launchd to run e.g. weekly
# Specify in seconds how long the script should record (default here is 1 hour).
seconds=3600
# Date format for the recording file name
DATE=`date "+%d-%m-%y_%H-%M"`
# start ffmpeg recording
@border
border / mgoExample.go
Created August 27, 2012 15:33
mgo example
package main
import (
"fmt"
"labix.org/v2/mgo"
"labix.org/v2/mgo/bson"
"time"
)
type Person struct {