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JaicraB on Cobra USB JIG Protection RTOC Trick for PS3


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160w ago - Today Spanish PlayStation 3 developer JaicraB has explained the Cobra USB JIG protection RTOC trick implemented for the PS3 against cloning the device.

To quote, roughly translated: Flynn sent me this text explaining this protective carrying the Cobra, I hope it will open the eyes of those interested in reversing the dumps.

EXPLAIN RTOC COBRA TRICK

The JIG Cobra has several protective measures to ensure that your code could not be used correctly even if your code could be dumped.

This trick RTOC in the registry is the first used for this purpose in addition to hinder analysis.
Registration is initially RTOC stored in the battery to keep the RTOC of lv2 and power it back later:


At this point we have to explain that the OFFSET DELTA. DELTA OFFSET is a method used in the x86 in its original moments in the creation of computer viruses, to calculate the memory address in which we are in the sea of ​​bytes in RAM.

In the original time a computer virus when I did not know where he was pulled into an executable,
depending on the executable it could be an initial site or another, for it was invented DELTA OFFSET.

DELTA OFFSET can be used in any system, the procedure is:

  • Using the record that indicates the current execution address (or the next depending on the system)
  • Reducing the size of the previous code we use the value obtained from the registry.

Knowing this, and taking for example the x86 processor where the EIP register can not be read directly invented the trick make a call to a "subfunction" which is simply the following line to the call:


X86 call instruction saves the top of the stack the address of the next instruction to itself. Thus using pop draw from the top of the stack this value, and stored in eax for example, and having the memory address where we only subtract the above would be missing and we have the exact calculation.

The PowerPC can use this trick using the BL instruction is equivalent (LINK BRANCH), which jumps to a "subfunction" but before you save LR in the record the following address to BL.


At this point we see the trick used for the creation of the RTOC of charges at this time. If you look both r0 and RTOC are passed to 0:


Subsequently, given the value 0x11DE0 to RTOC:


A r0 is given the value 0x920:


R0 is subtracted from the value of RTOC:


Unlike the PowerPC x86 LR register can be read directly with mflr instruction, we put in RTOC the value obtained by the delta offset:


To calculate the delta offset subtract final instructions executed before the delta offset, which were 4, or 16 bytes:


Finally we add the value of r0 at the end of the delta offset RTOC, storing the result in the RTOC and this already takes RTOC suitable for this hook:


It takes having the RTOC stored in the stack 3 arguments that the hook received:


You call the function of the charges where the first argument will check for command 0x8202 (a special command to the usual):


After making the necessary steps as charged, the battery recovers the original RTOC, like the arguments the hook received, it executes the original instruction that was overwritten in the syscall entry 379 (in this case) to have our hook, and call the original syscall lv2:


Upon returning to retrieve the original LR from the stack and returns to the prompt





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donceyrobin's Avatar
#659 - donceyrobin - 31w ago
hi, my multiman icon is moved to folder icon. why?

PS3 News's Avatar
#658 - PS3 News - 31w ago
Below is multiMAN ver 04.53.04 BASE CEX (20131224) by deank and Cobra CFW Tools v1.27 by bitsbubba with details as follows:

Download: [Register or Login to view links] (43.83 MB) / [Register or Login to view links] (123.05 MB)

A lot of changes and additions to the last 04.53.03 so I decided it is better to have it with different version.

multiMAN 04.53.04:

  • Names of local PS3 games in ISO format are properly displayed (from PARAM.SFO)
  • Names of network and NTFS PS3 games in ISO format are properly displayed (from PARAM.SFO) after you load them at least once
  • PS3 ISO games from NTFS drives will now show background and cover (if loaded at least once)
  • Added support for checking for game updates for network and NTFS PS3 games in ISO format
  • Last loaded game/video (no network/ntfs) will be passed to webMAN for auto-load at next system start (making lastGAME almost obsolete)
  • While scanning for content, mmCM will prepare data for webMAN, too (NTFS info, images and param.sfo)
  • Upon launch, mM/mmCM will rescan your games and will cache images and other files
  • Small change to make mM "title_id" independent (in case you change it from the default BLES80608)
  • Downloading mM/mmCM updates is now "title"/"name" independent
  • In mmCM mode in HOME column you now have "Scan connected NTFS USB drives" option. In case you didn't connect the drive before launching mmCM you can use this option to refresh content from NTFS drives.

The update is available online as always within mM and in the WEB column.

If you wish to FORCE mM/mmCM to download the update just start mM/mmCM while holding L2+R2 and it will enter debug mode (reporting 04.53.DD for mM and 04.53.CD for mmCM). Then you can update from the HOME column.

Cobra CFW Tools v1.27

Download: [Register or Login to view links] (16.81 MB) / [Register or Login to view links] (Mirror)

What is "Cobra CFW Tools"?

With this app you can install "webMAN XMB" based on XMBM+ (aldostools' webMAN links) and concept from multiMAN XMB Integrated) with ★Install Package Files, REBUG's ★Package Manager or XMBM+ support, 4.53 certs (for ?safer? PSN), Ingame ScreenShots and custom coldboots by atreyu187 that I helped design. It's been tested on both Rogero (Cobra 7- Unofficial) and HABIB Cobra edition (any version). Choose what suits you
Cobra CFW Tools v1.27:

OK, new update (yes it's been awhile, sorry holiday busy )

Changelog v1.27:

  • As always latest webMAN (webftp_server.sprx) thanks deank
  • Compatiblity 4.46/4.53 Cobra CFWs
  • Added categories/icons to webMAN XMB+ (renamed for new functions) [still more to add ]
  • Remote play patch 4.46/4.53
  • Cinavia patch 4.46 (also smhabib BD patch)
  • Update/Disable webMAN
  • PlaystationHome~IconSwap separate install (with in webMAN XMB+ options)
  • PSP Launcher/Remasters custom Icons
  • Changed app icon & webMAN XMB+ icon (to differ of mM)
  • More to come

Note: please uninstall older version before installing v1.27

Cobra CFW Tools v1.27C

Ok quick update: Added:

  • webMAN's latest sprx (thanks deank)
  • link to quit webMAN (in webMAN XMB+)
  • option to install/uninstall custom icons to normal webMAN
  • newest XMBM+ (Mod) by aldostools

Note: as always uninstall old before new.

Cobra CFW Tools v1.27D

Download: [Register or Login to view links]

Small update:

  • added mmTOOLS links

Cobra CFW Tools v1.27E

Download: [Register or Login to view links]

New update:

  • brought back InGame ScreenShots option to menu
  • new Screenshot Patches to Rogero 1.00 Mixed with Cobra (instead of pre-patched 1.01 I was using)
  • HABIB-Cobra 1.XX (original using habib's pre-patched 1.03A file)

Note: please delete older version before updating to this

andikajayasatri's Avatar
#657 - andikajayasatri - 31w ago
multiMAN v04.53.02 FULL CEX (20131219) is now available from deank:

multiMAN v04.53.02 FULL CEX (20131219)
[Register or Login to view links]

multiMAN v04.53.02 BASE CEX (20131217)
[Register or Login to view links]

Note: multiMAN 4.53.01 supports 3.55 CEX/DEX, 4.21 CEX/DEX, 4.30 CEX/DEX, 4.31 CEX, 4.40 CEX/DEX, 4.41 CEX/DEX, 4.46CEX, 4.46DEX (REX), 4.46 CEX+COBRA 7.0, 4.50 CEX/DEX, 4.53CEX/4.53 CEX+COBRA 7.0

Changelog 04.53.02 FULL CEX (20131219):

  • Added proper detection of COBRA7 firmwares (4.46-4.53)
  • Added “Check for updates” for local PS3 games in ISO format
  • Added check when loading local/network PS3 games in ISO format if installed game update requires higher firmware version and fixes sprx/self/eboot files
  • Added support for 4.53 CEX CFW (tested)
  • Fixed covers/backgrounds for network PS3 games in JB/folder format
  • Added spoof to version 4.53 (COBRA7 firmwares only)

UPDATE: [Register or Login to view links] (43.83 MB) /

[Register or Login to view links] / Mirrors

Changelog:

! For COBRA7 compatible firmwares:

  • Added support for PS3 games in ISO format from NTFS drives (/PS3ISO folder)
  • Added support for PS1 games in ISO/BIN+CUE format from NTFS drives (/PSXISO folder)
  • Added support for Blu-ray movies in ISO format from NTFS drives (/BDISO folder)
  • Added support for DVD video in ISO format from NTFS drives (/DVDISO folder)

The only requirement is to have your NTFS formatted USB HDD connected to your PS3 when you start multiMAN.

Update is available also online via mM update and in the WEB column.

UPDATE #2: [Register or Login to view links] (123.06 MB)

  • Small change to make mM "title_id" independent (in case you change it from the default BLES80608)
  • Downloading mM/mmCM updates is now "title"/"name" independent
  • Names of local PS3 games in ISO format are properly displayed (from PARAM.SFO)
  • Names of network and NTFS PS3 games in ISO format are properly displayed (from PARAM.SFO) after you load them at least once
  • PS3 ISO games from NTFS drives will now show background and cover (if loaded at least once)
  • While scanning for content, mmCM will prepare data for webMAN, too (NTFS info, images and param.sfo)
  • Upon launch, mM/mmCM will rescan your games and will cache images and other files
  • In mmCM mode in HOME column you now have "Scan connected NTFS USB drives" option.

In case you didn't connect the drive before launching mmCM you can use this option to refresh content from NTFS drives. The update is available online and in the WEB column.

If you wish to FORCE mM/mmCM to download the update (although you're on the same 04.53.03 version) just start mM/mmCM while holding L2+R2 and it will enter debug mode (reporting 04.53.DD for mM and 04.53.CD for mmCM). Then you can update from the HOME column.

rshalxn's Avatar
#656 - rshalxn - 32w ago
Hi Guys! Sorry for the bad english, im Brazilian and I have a big problem.. Actually I play my ps3 on a 42" HDTV 1080p, but this TV isn't on my bedroom, I buy a Dell 19" DVI 1080i (1440x900) monitor, and adapted a DVI to HDMI on my monitor, making the correct connections the PS3 finally starts and the image of menus and options appear on the screen

Buuut, when I start multiman to run GTA V, the black screen appears and i can ear the sound of game, but without image (I used the RCA cable to out audio in a headset). This problem apply too to another games, when I start a PSN games, the black screen turn to appear.

Details: I use a HDMI gold cable, PS3 Fat, CFW Rogero 4.46
Resume: In the HDMI 1080p I can play, in HDMI-DVI 1080i I can see the menus and options, but i cant play... HELP!

PS3 News's Avatar
#655 - PS3 News - 32w ago
More attachments for the above (and below) post..

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