360 Flash Dump Tool V0.1
Date: Tuesday, May 29 @ 20:50:59 UTC
Topic: Homebrew
Robinsod over at http://www.xboxhacker.net has announced a new tool. It will allow you to decrypt and extract various parts of an XBox360 flash dump.
The flash is devided into 2 major parts
1) The Cx sections (CB,CD,CE & 0,1 or 2 CF & CG sections).
CB, CPU bootup
CD, unpacker for CE
CE, contains the HV and Kernel in a .cab archive
CF&CG are upgrade patches
The tool will extract and decrypt sections CB, CD, CE. Additionally it will extract the .cab file in section CE. This can be opened with winrar and the content (xboxkrnl.img) extracted. The first 256K of xboxkrnl.img is the Hypervisor, the remainder is the 2.0.1888 Kernel.
2) The Flash File System.
The tool expects a dump to contain the data (512 bytes) followed by the ECC (16 bytes). The ECC bytes are used to locate FS entries & identify the version.
The tool consists of the exe and CxKey.txt. CxKey.txt is delivered with 32 '0's and they should be replaced with the key obtained from the 1BL. After all the fuss about AACS keys recently it seems risky to put the key in the exe The Cx sections extracted from a dump will only decrypt correctly if the correct hex digits are inserted in the CxKey.txt file
You can find the download here.
News-Source: http://www.xboxhacker.net
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