Carlos Alexandro Becker caarlos0

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

INTRO

Concurrency is a domain I have wanted to explore for a long time because the locks and the race conditions have always intimidated me. I recall somebody suggesting concurrency patterns in golang because they said "you share the data and not the variables".

Amused by that, I searched for "concurrency in golang" and bumped into this awesome slide by Rob Pike: https://talks.golang.org/2012/waza.slide#1 which does a great job of explaining channels, concurrency patterns and a mini-architecture of load-balancer (also explains the above one-liner).

Let's dig in:

Goroutines

10666361bf2ddb7070c9ea6756b1e8ce327a9edb

8 found

builds:
  # List of builds
  - # First Build
    env:
    - CGO_ENABLED=0

format	repo_full_name	stargazers_count
gohugoio/hugo	gohugoio/hugo	38629
containous/traefik	containous/traefik	25222
influxdata/influxdb	influxdata/influxdb	17505
influxdata/influxdb	influxdata/influxdb	17505
[wagoodman/dive](https://github.com/wagoodman/dive/blob/master/.gore

Linkedin is a great platform to network and meet people.

Unfortunately opinionated discussion tend to take over a lot of engagment and insights take a back seat.

These are the following instructions to make linkedin feed work for you

PS: Use chrome to make sure this works.

Go to https://www.linkedin.com/feed/following/


	'.source.go':
	'Options':
	'prefix': 'options'
	'body': '''
	// Option function.
	type Option func(*$1)

	// New with the given options.
	func New(options ...Option) *$1 {

	package main

	import (
	"context"
	"flag"
	"fmt"
	"log"
	"net/http"
	"os"
	"os/signal"

	package main

	import (
	"context"
	"fmt"
	"os"
	"os/signal"
	"syscall"
	"time"

	# Latte
	Set Theme { "black": "#5c5f77", "red": "#d20f39", "green": "#40a02b", "yellow": "#df8e1d", "blue": "#1e66f5", "purple": "#ea76cb", "cyan": "#179299", "white": "#acb0be", "brightBlack": "#6c6f85", "brightRed": "#d20f39", "brightGreen": "#40a02b", "brightYellow": "#df8e1d", "brightBlue": "#1e66f5", "brightPurple": "#ea76cb", "brightCyan": "#179299", "brightWhite": "#bcc0cc", "background": "#eff1f5", "foreground": "#4c4f69", "selectionBackground": "#acb0be", "cursorColor": "#dc8a78" }

	# Frappe
	Set Theme { "black": "#51576d", "red": "#e78284", "green": "#a6d189", "yellow": "#e5c890", "blue": "#8caaee", "purple": "#f4b8e4", "cyan": "#81c8be", "white": "#b5bfe2", "brightBlack": "#626880", "brightRed": "#e78284", "brightGreen": "#a6d189", "brightYellow": "#e5c890", "brightBlue": "#8caaee", "brightPurple": "#f4b8e4", "brightCyan": "#81c8be", "brightWhite": "#a5adce", "background": "#303446", "foreground": "#c6d0f5", "selectionBackground": "#626880", "cursorColor": "#f2d5cf" }

	# Macchiato
	Set Theme { "black"