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243w ago - Earlier today we reported on a preliminary PS3 flash and registry entry analysis from DemonHades and RichDevX, and now SKFU (linked above) has shared his input thus far.

To quote: Since PS3News released their PS3 FTP application I did some research on the PS3's registry.

The registry and it's backup are stored on dev_flash2 as xRegistry.sys.

The header

BC AD AD BC 00 00 00 90 00 00 00 02 BC AD AD BC

The entries

Every entry has a fronttag which is 5 bytes long. I'll describe:

56 41 00 11 01

This is an example value:

/setting/parental

Behind the value theres a 1 byte close mark:

00

The 5 bytes

The first 4 bytes are a unique but random number. Every value has it to be identified and found by the system as there is no special pattern. An sprx(?) finds every value by this 4 bytes.

56 41 00 11

The 5th byte can be 00, 01 or 02. 00 tagged values are actually activated/used by the VSH, 01 ones not. The 02 seems to mean "DO NEVER UNLOCK". For example the QA Mode is tagged with 02.

00 == unlocked/used/activated
01 == locked/unused/inactive
02 == never ment to be unlocked


Stop footer

The registry has a

AA BB CC DD EE

after the last value. Here the system stops to search for values.

Single values without tag

Some values are behind the stop tag spreaded randomly in the file it seems. I have no clue how the system finds those yet but here are some I found:

- your local username
- your language (f.e. eng for english)
- your PS3 system name
- URL to the information board online stored files
- HDD serial
- Board name
- your PSN username + password
- your WIFI network key
- your local IP
- your PSID
- path to local user pic

You can modify all those values as long as you don't change its size or adress. For example the local user pic is loaded from:

/dev_flash/vsh/resource/explore/user/000.png

But you can redirect it to load from USB for example:

/dev_usb/vsh/resource/explore/user/12345.png

The Cool Stuff

The retail PS3's registry contains all values to unlock the settings which are possible on a test/debug PS3 and even more like QA mode. We can enable those via the registry, but we won't see any effect in the XMB.

That is because we just UNLOCKED it, but different files on dev_flash handle what we can actually SEE in the XMB. So we need to modify them also to fully use debug options on a retail and more.

This can be done by mounting the dev_flash from USB. We need to do this as we can not write to the original dev_flash. So once we can load our customized dev_flash from USB and have modiified our registry, we have a nice way to load a our custom firmwares.

The Crash Report

The registry can contain an crash report which is seperatly splitted with another registry header as explained above. It contains system error messages, for example if you muck up your registry ;-)

PS3 Live USB CFW Theory

While the Jailbreak just changes mountpoints it should be possible to do the same for other places than the BDD, aswell.

For the JB, the drive is remounted @ HDD. So why not mount the dev_flash from USB?

Surely this is possible and I hope to see some action here soon!

So we would have a good solution to test and run custom firmwares as the brick risk is equal zero, because we can just unplug the USB device and the dev_flash is mounted as common - unchanged.

SKFU on PS3 Registry Research and PS3 USB Custom Firmware

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#12 - Jurai2 - 243w ago
Jurai2's Avatar
would like to give CJPC a tongue kiss!

#11 - lohr - 243w ago
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Quote Originally Posted by Starlight View Post
Sounds promising and hopefully they will find more on this, but next to remain to be seen is what sony is going to do and if they can shut down this exploit as the ps3 has been one tough cookie to crack so far and if it is sony will most likely be on the hunt to close it down, well time will tell and good luck to all hackers/developers on this project..may the force be with you..


Sony can't do anything except issue new firmwares. Was Microsoft able to stop the drive hacks? No, and look how long that's gone on for. Was Microsoft able to stop the jtag hack? Only by issuing a firmware upgrade which killed the e-fuses so you couldn't do the j-tag hack.

Sony already issued the new firmware, and that's all they'll be able to do most likely, that and these lawsuits on stores that sell the original PSJailBreak device, or clones. Maybe also issue PSN bans based on the ID of the backup manager, if you even ran that. Look @ history. Sony never was able to stop the PS1 hacking, the PS2, I got out of the PSP scene years ago, but I think that's still happening as well.

#10 - BwE - 243w ago
BwE's Avatar
sounds awesome!

can't wait to start looking into the ps3 so i can bypass updates forever.

i'm sure there a way to perminately redirect or void the search for an update.

^_^ should be awesome, i'm sure i can search up some keywords etc to start with when i dump the entire ps3 to my pc.

#9 - zant - 243w ago
zant's Avatar
cant wait for custom firmware! And better yet, NO brick possibility? Couldn't ask for more! now i got to find a CECHA01 to keep permanently offline.

#8 - Starlight - 243w ago
Starlight's Avatar
Sounds promising and hopefully they will find more on this, but next to remain to be seen is what sony is going to do and if they can shut down this exploit as the ps3 has been one tough cookie to crack so far and if it is sony will most likely be on the hunt to close it down, well time will tell and good luck to all hackers/developers on this project..may the force be with you..

#7 - tjay17 - 243w ago
tjay17's Avatar
This just gets better and better.

#6 - bernzburnz - 243w ago
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Much respect to all putting in time to crack this beast. Can't wait for CFW online!

#5 - evilsperm - 243w ago
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Quote Originally Posted by adrianc1982 View Post
So ps3jailbreak will soon be obsolete hehehe.

Doubtful.. You still need the jailbreak to trigger the exploit to run unsigned code.

I think it will be quite a few months until another exploit is found (if one ever is) and even then its anyones guess if we will need a device to trigger it.

I do think that Sk8fu has a sound idea though and it will be pretty amazing to see this happen.

#4 - spark32 - 243w ago
spark32's Avatar
hell yeah! This is sick dogg.

#3 - Breach - 243w ago
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Once the floodgates are open, down come the walls.