Xbox 360 Hacks - News, Hacks, Cracks, Mods.

robinsod has released a Windows app which will decrypt & extract various parts of a Xbox 360 flash dump. In case you didn’t know, the 360’s flash is divided into 2 major parts: 1) the Cx sections and, 2) the Flash File System.

The Cx sections:

• CB — CPU bootup
• CD — unpacker for CE
• CE — contains the Hypervisor and Kernel (in a .cab archive)
• CF & CG — upgrade patches

360 Flash Dump v0.1 expects the dump to contain the 512 bytes of data followed by the ECC, which is 16 bytes. The ECC bytes are used to locate FS entries and identify the version.

The ZIP archive comprises two files: a Windows executable and CxKey.txt. In order to properly decrypt the Cx sections, you will need to replace the 32 0’s in CxKey.txt with the key obtained from the 1BL.

How to Use it

Load a flash dump and the tool will display a tree containing the Cx Sections and the FFS. The tool displays the base Kernel version (2.0.1888) and the highest revision CF/CG patch installed.

Expand the CX Sections node and right click on a section, choose Extract (or for CE sections ExtractCAB) you will then be prompted for a directory. Hit OK and the tool will extract that section to the selected directory

Expand the file System Roots node, each entry takes the form FS_XXXXXXXX_YY (ZZZZ) Where

XXXXXXXX is the offset into the flash of this FS root in bytes
YY is the version, we suggest extracting from the latest FS roots in case some older files have been deleted.
ZZZZ is the offset into the flash of this FS root in blocks

Expand a FS root to view the files it contains

Right click on a FS root to extract all the files in this FS entry.
Right click on a File to extract the file.

Download: 360 Flash Dump Tool v0.1

- source: xboxhacker