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@karpathy
karpathy / microgpt.py
Last active February 15, 2026 01:56
microgpt
"""
The most atomic way to train and inference a GPT in pure, dependency-free Python.
This file is the complete algorithm.
Everything else is just efficiency.
@karpathy
"""
import os # os.path.exists
import math # math.log, math.exp

Syscall Provider

Background

SyscallProvider is a feature available from Windows 11 22H2, that allows for inline hooking of syscalls.
This unfinished research was done on Windows 11 22H2. The feature is fully undocumented at the moment and it looks like it's locked to Microsoft-signed drivers.
All of the information here was gathered by manual reverse engineering of securekernel.exe, skci.dll and ntoskrnl.exe.
The kernel exports three functions to work with the new feature: PsRegisterSyscallProvider, PsQuerySyscallProviderInformation, PsUnregisterSyscallProvider.
This writeup will explore how this feature is initialized, how it works internally, and how to interact with it and use it.

@zhangyoufu
zhangyoufu / extract-installbuilder.tcl
Created August 10, 2020 10:18
extract password-protected InstallBuilder installer
#!./tclkit
## prepare runtime environment
proc init {} {
## mount optional.pak (for tcltwofish)
set optionalPak installbuilder/paks/optional.pak
vfs::mk4::Mount $optionalPak $optionalPak -readonly
## adjust library search path
set ::auto_path [list $tcl::kitpath/lib/tcl$::tcl_version $tcl::kitpath/lib $tcl::kitpath/libraries $optionalPak/linux-x64 $tcl::kitpath]
@DanielSmon
DanielSmon / New MS Teams Profile.cmd
Last active September 30, 2025 01:45
For running multiple MS Teams accounts side by side. Save this with the name of the MS Teams profile you wish to use. When launched, a folder will be created in your user profile. See https://danielsmon.com/2020/04/02/multiple-ms-teams-accounts-on-the-desktop/.
@ECHO OFF
REM Uses the file name as the profile name
SET MSTEAMS_PROFILE=%~n0
ECHO - Using profile "%MSTEAMS_PROFILE%"
SET "OLD_USERPROFILE=%USERPROFILE%"
SET "USERPROFILE=%LOCALAPPDATA%\Microsoft\Teams\CustomProfiles\%MSTEAMS_PROFILE%"
REM Ensure there is a downloads folder to avoid error described at
@ubogdan
ubogdan / ida_plugins.md
Created August 11, 2019 09:03
A list of IDA Plugins

A list of IDA Plugins

I'll be organizing the plugins over time. Please submit PRs if you have any other outstanding plugins. I would like to tag each plugin with its corresponding IDA version, but it will take me a long time to test. If you can help there, please do.

If a plugin is only a source repo with no description or documentation, I am not adding it.

TODO

  • Add more plugins
  • Categorize plugins
@hfiref0x
hfiref0x / inject.c
Last active May 24, 2025 12:49
Process Doppelgänging
//
// Ref = src
// https://www.blackhat.com/docs/eu-17/materials/eu-17-Liberman-Lost-In-Transaction-Process-Doppelganging.pdf
//
// Credits:
// Vyacheslav Rusakov @swwwolf
// Tom Bonner @thomas_bonner
//
#include <Windows.h>
@tzmartin
tzmartin / m3u8-to-mp4.md
Last active December 24, 2025 06:37
m3u8 stream to mp4 using ffmpeg

1. Copy m3u8 link

Alt text

2. Run command

echo "Enter m3u8 link:";read link;echo "Enter output filename:";read filename;ffmpeg -i "$link" -bsf:a aac_adtstoasc -vcodec copy -c copy -crf 50 $filename.mp4
@rahilwazir
rahilwazir / vmdk_vhdx.md
Last active January 21, 2026 21:33
Convert VMWare to Hyper-V (vmdk to vhdx)
@gentaiscool
gentaiscool / tensorflow.md
Last active November 7, 2019 08:22
Building Tensorflow on CentOS 7.X from Source

I figured out how to build tensorflow from source in centOS. This process does not require any root access and you can do it anywhere. This will save your time and no need to worry much after this.

#What to prepare:

  1. Java 8
  2. Bazel
  3. Tensorflow
  4. CuDNN and CUDA toolkit (assume you have install them)

#Installation ##Bazel