Luis von der Eltz pr8x

Working around offsetof limitations in C++:

There is sometimes a situation in which one needs to get the relative offset of a structure field, common examples of this include serialization frameworks which aid to serialize objects, vertex attributes for rendering (D3D, GL.), etc.

The most common technique for getting this information is through the offsetof macro defined in stddef.h. Unfortunately using the macro in C++ comes with a new set of restrictions that prevent some (subjectively valid) uses of it.

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

	#!/usr/bin/env python

	# kd-tree index and nearest neighbour search
	# includes doctests, run with: python -m doctest kdtree.py

	class KDTree(object):
	"""
	kd-tree spatial index and nearest neighbour search
	http://en.wikipedia.org/wiki/Kd-tree
	"""


	/* compile with:
	on linux: gcc -g stack_traces.c
	on OS X: gcc -g -fno-pie stack_traces.c
	on windows: gcc -g stack_traces.c -limagehlp
	*/

	#include <signal.h>
	#include <stdio.h>
	#include <assert.h>

	vec3 hsv2rgb(vec3 c) {
	vec4 K = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
	vec3 p = abs(fract(c.xxx + K.xyz) * 6.0 - K.www);
	return c.z * mix(K.xxx, clamp(p - K.xxx, 0.0, 1.0), c.y);
	}

	const vec4 K = vec4(1., 2. / 3., 1. / 3., 3.);
	vec3 hsv2rgb(vec3 c)
	{
	// from http://lolengine.net/blog/2013/07/27/rgb-to-hsv-in-glsl

	#include <iostream>
	#include <vector>

	#define GLFW_INCLUDE_VULKAN
	#define VK_USE_PLATFORM_WIN32_KHR
	#include <GLFW/glfw3.h>

	#define GLFW_EXPOSE_NATIVE_WIN32
	#include <GLFW/glfw3native.h>