haxchi

This is a ported version of the haxchi exploit created by smea and others for all sorts of different ds vc games.
In addition to being ported it also includes a homebrew launcher loader as its payload so you can use it for a lot of things.

install process

haxchi can be very easily installed using iosuhax's wupclient. for example, if hachihachi is installed to the MLC, it suffices to do:

  w.up("rom.zip", "/vol/storage_mlc01/usr/title/00050000/YOUR_GAME_TITLE_ID/content/0010/rom.zip")

of course, using wupclient to install haxchi permanently requires that redNAND be disabled, unless hachihachi is installed to USB, in which case it can be installed from redNAND using:

  w.up("rom.zip", "/vol/storage_usb01/usr/title/00050000/YOUR_GAME_TITLE_ID/content/0010/rom.zip")

To upload a config.txt as well you will have to do the following if the title is installed on NAND:

  w.up("config.txt", "/vol/storage_mlc01/usr/title/00050000/YOUR_GAME_TITLE_ID/content/config.txt")  
  w.chmod("/vol/storage_mlc01/usr/title/00050000/YOUR_GAME_TITLE_ID/content/config.txt", 0x644)  

and for the title being installed to USB you do the following:

  w.up("config.txt", "/vol/storage_usb01/usr/title/00050000/YOUR_GAME_TITLE_ID/content/config.txt")  
  w.chmod("/vol/storage_usb01/usr/title/00050000/YOUR_GAME_TITLE_ID/content/config.txt", 0x644)  

make sure to replace YOUR_GAME_TITLE_ID with one of the following:
10179A00 - JPN Brain Age
10179B00 - US Brain Age
10179C00 - PAL Brain Training
10195600 - JPN Mario Kart DS
10195700 - US Mario Kart DS
10195800 - PAL Mario Kart DS
10195900 - JPN New Super Mario Bros
10195A00 - US New Super Mario Bros
10195B00 - PAL New Super Mario Bros
10198800 - JPN Yoshi's Island DS
10198900 - US Yoshi's Island DS
10198A00 - PAL Yoshi's Island DS
101A1E00 - JPN WarioWare: Touched
101A1F00 - US WarioWare: Touched
101A2000 - PAL WarioWare: Touched
101A5500 - JPN Kirby Squeak Squad
101A5600 - US Kirby Squeak Squad
101A5700 - PAL Kirby Mouse Attack
101AC000 - JPN Star Fox Command
101AC100 - US Star Fox Command
101AC200 - PAL Star Fox Command
101C3600 - JPN Zelda Phantom Hourglass
101C3700 - US Zelda Phantom Hourglass
101C3800 - PAL Zelda Phantom Hourglass

a config.txt can look like this for example:

a=fw.img
b=rednand/fw.img
x=wiiu/apps/ftpiiu/ftpiiu.elf
down=wiiu/apps/snes9x2010_libretro/snes9x2010_libretro.elf
default=wiiu/apps/homebrew_launcher/homebrew_launcher.elf

please note though that if you want to load a fw.img the name HAS to be named fw.img in whatever folder you use, nothing else will work.

contents

• hbl_loader: a loader which will load up the homebrew launcher from sd card
• haxchi_rop.s: hachihachi process ROP which will emit hbl_loader as executable
• haxchi.s: generates a malicious SRL file

credit

smea, plutoo, yellows8, naehrwert, derrek, FIX94 and dimok