Aaron Janse aaronjanse

Here's an example of how to embed a Gist on GitHub Pages:

{% gist 5555251 %}

All you need to do is copy and paste the Gist's ID from the URL (here 5555251), and add it to a gist tag surrounded by {% and %}.

NOTE: a more up-to-date version of this can be found on my blog

nix-shell and Shebang Lines

A few days ago, version 1.9 of the Nix package manager was released. From the release notes:

nix-shell can now be used as a #!-interpreter. This allows you to write scripts that dynamically fetch their own dependencies.

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

	/*
	* I add this to html files generated with pandoc.
	*/

	html {
	font-size: 100%;
	overflow-y: scroll;
	-webkit-text-size-adjust: 100%;
	-ms-text-size-adjust: 100%;
	}

	"""
	Minimal character-level Vanilla RNN model. Written by Andrej Karpathy (@karpathy)
	BSD License
	"""
	import numpy as np

	# data I/O
	data = open('input.txt', 'r').read() # should be simple plain text file
	chars = list(set(data))
	data_size, vocab_size = len(data), len(chars)

	# Encrypt STDIN and provide a password(prompt)
	echo "message" \| openssl enc -aes-256-cbc -a

	# Decrypt STDIN and provide a password(prompt)
	echo "encrypted" \| openssl enc -aes-256-cbc -a -d

	// from http://stackoverflow.com/a/7869457
	// converted to js code
	// x and y are the angles in radians

	function getDifference(x, y) {
	var a = x-y;
	a = (function(i, j) {return i-Math.floor(i/j)j})(a+Math.PI, Math.PI2); // (a+180) % 360; this ensures the correct sign
	a -= Math.PI;
	return a;
	}

	// ==UserScript==
	// @name Bursch Blog Cleaner
	// @version 1.0
	// @description This makes Mr.Bursch's blog legible!
	// @author Aaron Janse
	// @match http://mrbursch.blogspot.com/*
	// @grant none
	// ==/UserScript==

	(function() {

	pandoc -f markdown -t mediawiki test.md -o test.wiki

	# Thanks to @tillmanj for the updated formatting

	[alias]
	fetch-pr = "!f() { git fetch origin refs/pull/$1/head:pr/$1; } ; f"
	delete-prs = "!git for-each-ref refs/heads/pr/* --format='%(refname)' \| while read ref ; do branch=${ref#refs/heads/} ; git branch -D $branch ; done"