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Playing with memory regions...

Layle | Luca ioncodes

Playing with memory regions...

Block or report ioncodes

About me

• reverse engineer & software engineer (Rust, C++, Assembly mostly) at night; penetration tester & vuln researcher during the day
• working on low-level projects such as emulators, game-cheats, compilers and exploits. anything low-level really
• currently learning hardware related topics such as FPGAs
• used to play tons of CTFs; I founded & co-founded excusemewtf (2019) and organizers (2020-2022) respectively
• HackTheBox, peaked at global #2
• sometimes I ramble on my blog over at layle.me
• discord at mrlayle
• twitter at layle_ctf Expand this to see a more exhaustive list of a bunch of highlights (excluding the pinned ones)

Game Hacking

• DeadByDaylight - Dead by Daylight research material gathered while reverse engineering the game
• FallGuys - FallGuys cheat that used internal functions present in one of the first published releases of the game
• RACEAC - Proof of concept code for an EasyAntiCheat race condition that allowed you to tamper resource data
• NonlethalCompany - Lethal Company cheat that uses Harmony to change various aspects of the game (infinite sprint, no death, etc)
• ESP-It - Witch It ESP cheat
• vacation3-emu - An emulator that deobfuscates and decrypts VAC3 anticheat modules
• Maze - Cheats for "Maze", LiveOverflow's game hacking challenge
• Clicker Heroes - Clicker Heroes cheat that allows you to use self created redemption codes to unlock items by emulating the server response

Research

• Curveball - Proof of concept code for CVE-2020-0601 also known as the "CryptoAPI exploit"
• BlueGate - PoC for the Remote Desktop Gateway vulnerability - CVE-2020-0609 & CVE-2020-0610
• dbgmon - Reverse engineered implementation of DbgView's usermode logger

Emulators

• gg - GameGear emulator
• ayyboy - GameBoy and GameBoy Color emulator, featuring rumble pak support for Lovense sex toys

Misc

• rw - A kernel driver exposing read/write capabilities to usermode
• pooldump - Allows you to dump all nonpaged BigPools from kernel
• dlsym_hook - Rewrites a binary statically by lifting the instructions to LLVM, hooking a function and compiling it back
• long_night - A collection of themes based on pastel colors, created for reverse engineers
• docker-compiler-explorer - Dockerized version of Godbolt's Compiler Explorer preconfigured with C, C++, Rust and LLVM
• SteamManifestFixer - Patches Steam to download depot files without manifest data
• sbb - A commandline tool that allows you to check the public transportation connection via SBB
• JodelAPI - A wrapper for Jodel's API

Pinned Loading

1. Virtual-machine Translation Intermediate Language
   C++ 1.3k 165
2. An integration for IDA and VS Code which connects both to easily execute and debug IDAPython scripts.
   Python 717 77
3. .NET Patcher library using dnlib
   C# 313 49
4. Bypassing NTFS permissions to read any files as unprivileged user.
   C++ 187 40
5. Loading dbk64.sys and grabbing a handle to it
   C++ 148 42
6. Statically recompiling CHIP8 to Windows and macOS using LLVM
   C++ 93 4