Skip to content

Instantly share code, notes, and snippets.

View caarlos0's full-sized avatar
๐Ÿ„

Carlos Alexandro Becker caarlos0

๐Ÿ„
View GitHub Profile
@tj
tj / snippets.coffee
Last active September 1, 2018 19:01
Atom snippets for Go
'.source.go':
'Options':
'prefix': 'options'
'body': '''
// Option function.
type Option func(*$1)
// New with the given options.
func New(options ...Option) *$1 {

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

@matthiasr
matthiasr / LICENSE.md
Last active February 15, 2023 00:16
Exporting chef-client metrics to Prometheus

The MIT License (MIT)

Copyright ยฉ 2017 SoundCloud Ltd.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

@ankurk91
ankurk91 / github_gpg_key.md
Last active April 3, 2025 08:33
Signing git commits using GPG (Ubuntu/Mac)

Github : Signing commits using GPG (Ubuntu/Mac) ๐Ÿ”

  • Do you have an Github account ? If not create one.
  • Install required tools
  • Latest Git Client
  • gpg tools
# Ubuntu
sudo apt-get install gpa seahorse
# MacOS with https://brew.sh/
@mlafeldt
mlafeldt / postmortem.md
Last active October 10, 2024 04:08
Example Postmortem from SRE book, pp. 487-491

Shakespeare Sonnet++ Postmortem (incident #465)

Date

2015-10-21

Authors

  • jennifer
  • martym
@xero
xero / irc.md
Last active January 31, 2025 15:06
irc cheat sheet
@caarlos0
caarlos0 / eq.or.higher.than.9.2.sql
Created June 3, 2014 19:25
PostgreSQL query monitoring (deadlocks and shit)
SELECT bl.pid AS blocked_pid,
a.usename AS blocked_user,
ka.query AS blocking_statement,
now() - ka.query_start AS blocking_duration,
kl.pid AS blocking_pid,
ka.usename AS blocking_user,
a.query AS blocked_statement,
now() - a.query_start AS blocked_duration
FROM pg_catalog.pg_locks bl
JOIN pg_catalog.pg_stat_activity a ON a.pid = bl.pid
@chrisb
chrisb / gist:4d6a09c6cc1ca2e1b14e
Last active November 25, 2022 04:15
Homebrew, Ruby, and Rails on OS X 10.10

OS X 10.10 Guide

Here's what I did to get things working.

1. Install Xcode 6

Yep, over at: https://developer.apple.com

2. Install the Command Line Tools (CLT)

@jberkus
jberkus / gist:6b1bcaf7724dfc2a54f3
Last active January 13, 2025 21:00
Finding Unused Indexes
WITH table_scans as (
SELECT relid,
tables.idx_scan + tables.seq_scan as all_scans,
( tables.n_tup_ins + tables.n_tup_upd + tables.n_tup_del ) as writes,
pg_relation_size(relid) as table_size
FROM pg_stat_user_tables as tables
),
all_writes as (
SELECT sum(writes) as total_writes
FROM table_scans
@tlrobinson
tlrobinson / post-receive
Last active December 7, 2022 08:15
Super simple git post-receive hook for Node.js + nvm + npm + node-foreman + init (Ubuntu) deployment
#!/usr/bin/env bash
set -u
set -e
export GIT_WORK_TREE="/var/www/example.com"
export NODE_VERSION="0.10"
echo "--> Checking out..."
git checkout -f