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July 8, 2011 // 4:59 pm - 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:

[Register or Login to view code]


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:

[Register or Login to view code]


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.

[Register or Login to view code]


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:

[Register or Login to view code]


Subsequently, given the value 0x11DE0 to RTOC:

[Register or Login to view code]


A r0 is given the value 0x920:

[Register or Login to view code]


R0 is subtracted from the value of RTOC:

[Register or Login to view code]


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

[Register or Login to view code]


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

[Register or Login to view code]


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:

[Register or Login to view code]


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

[Register or Login to view code]


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

[Register or Login to view code]


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:

[Register or Login to view code]


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

[Register or Login to view code]



JaicraB on Cobra USB JIG Protection RTOC Trick for PS3

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#397 - richdotward - December 16, 2012 // 2:42 pm
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Mm does support this but only if you have a dongle and on their 3.55 cfw. Shame.

Rich

Sent from my GT-I9000 using Tapatalk 2.

#396 - Muhammad54 - December 16, 2012 // 1:59 pm
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No. Multiman could launch it. But your CFW needs to see those games in certain locations.

#395 - miandad - December 16, 2012 // 1:47 pm
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hello guys,

i have ps3 games on my pc hard drive. can i share folder through lan and load the ps3 games through multiman?

sorry for bad english

#394 - seeman - December 15, 2012 // 8:34 pm
seeman's Avatar
i got a question! i want to mount my games straight from xmb (no direct boot)! i read that i have to use ebootfix and shadowcopy.. but there is no more shadow copy in the new multiman?!? is there anyway to get games on xmb like the lastgame.pkg from multiman?? this should be possible for every game i think but i dont understand how it words... and also i dont find shadow copy in multiman filemanger.... pls help thx greetz

#393 - tonyqc - December 15, 2012 // 6:59 pm
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MultiMAN v04.16.01 Base (20121215) Update is now below from deank with the changes, as follows: Here is a minor update:

Download: multiMAN v04.16.01 Update (20121215) (5.70 MB) / multiMAN v04.16.01 Update (20121215) (Mirror) / multiMAN v04.16.01 Update (20121215) (Mirror #2) / multiMAN v04.16.01 Update (20121215) (Mirror #3) / multiMAN v04.16.01 Update (20121215) (Mirror #4) / ps3netsrv2_mmRAS.rar (1.11 MB) / LANG_EL Update 04.16.01 (613 lines) by tupac4u

v04.16.01 Changelog:

  • Scanning for games is greatly improved and is 40-80% faster now
  • Improved "Remote Access" functions (support for Left/Right stick mouse controls in remote mmOS)
  • Added support for new mmRAS 01.02.00
  • Some other general improvements
  • The online version of the "multiMAN Original Theme" is updated with the full audio version of Enigma's-TEOT (youtube.com/watch?v=b8ri14rw32c)

ps3netsrv2_mmRAS

Includes:

  • mmRAS 01.02.00 required for mM 04.16.01
  • ps3netsrv2 (windows/linux)
    PS3 Net Server (PC GUI for ps3netsrv)

multiMAN ver 04.16.01 Update (20121215).rar

Includes:

  • multiMAN ver 04.16.01 UPD CEX (20121215).pkg
  • multiMAN ver 04.16.01 UPD CEX STEALTH (20121215).rar
  • ps3netsrv2_mmRAS.rar

CEX/DEX/STEALTH versions are available for online update within multiMAN as usual.

#392 - credentialz - December 14, 2012 // 10:00 pm
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Ps3 fan adjuster within multiman ...to help prevent ylod.

#391 - PS4 News - December 14, 2012 // 7:12 am
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Today deank has updated to multiMAN v04.16.00 Base (20121214) for both CEX and DEX for those interested with details below, as follows:

Download: multiMAN v04.16.00 Base (20121214).rar (107.20 MB) / multiMAN v04.16.00 Base (20121214).rar (Mirror) / multiMAN v04.16.00 Base (20121214).rar (Mirror #2) / multiMAN v04.16.00 Base (20121214).rar (Mirror #3) / multiMAN v04.16.00 Base (20121214).rar (Mirror #4) / multiMAN v04.16.00 Base (20121214).rar (Mirror #5) / ps3netsrv2_mmRAS.rar (1.11 MB) / ps3netsrv2_mmRAS.rar (Mirror) / ps3netsrv2_mmRAS.rar (Mirror #2) / v04.16.00 French Language by winch03200 / v04.16.00 Russian Language by pvc1 / v04.16.00 Polish Language by djtom / v04.16.00 Brazil Language by ajts1989 / v04.16.00 Portuguese Language by kgb / LANG_ES_04.16.00_(20121215)_CaptainCPS-X.rar]v04.16.00 Spanish Language / v04.16.00 Spanish Language (Mirror) / v04.16.00 Spanish Language (Mirror #2) / v04.16.00 Spanish Language (Mirror #3) by CaptainCPS-X / v04.16.00 Hungarian Language by JohnDoeHun / v04.16.00 Italian Language by Dino05 / v04.16.00 Indonesian Language by aquarius / v04.16.00 German Language by STAKERS / v04.16.00 Galician Language by ser8210

Changelog:

multiMAN 04.16.00 (Base)

  • Improved quality and speed of remote access screen rendering. Depending on server PS3 resolution the image is rendered as follows:
    - 1920x1080 -> 960x720, 1280x720 -> 960x720, 720x480 -> 720x480, 720x576 -> 720x576 (all with PAR 16:9)
  • Added support for new functions in mmRAS
  • When using remote access to another PS3 both must be on mM 04.16.00
  • Added new lines in translation files
  • Added new linux (x86) version of ps3netsrv
  • Updated Showtime (for mM and standalone) to 4.1.307
  • Fixed a bug preventing mM from fixing 80010009 error

ps3netsrv2_mmRAS

Includes:

  • new ps3netsrv for Windows
  • new ps3netsrv for Linux
  • PS3_NET_Server (GUI for ps3netsrv by aldostools)
  • new mmRAS 01.01.00 (Windows application for PS3 remote control by aldostools)

multiMAN ver 04.16.00 BASE (20121214)

Includes:

  • multiMAN ver 04.16.00 BASE CEX (20121214).pkg
  • multiMAN ver 04.16.00 BASE DEX (20121214).pkg
  • multiMAN ver 04.16.00 BASE CEX STEALTH (20121214).rar
  • Showtime 04.01.307 [CEX].pkg
  • Showtime 04.01.307 [DEX].pkg
  • installPKG, lastGAME, bdRESET, gameDATA, stDISC
  • PC applications (ps3netsrv win/linux, aldos tools, c2d, rcp_bdemu, genGP3, split4G)

CEX, DEX and STEALTH versions are also available via online update (2MB). 04.14.00 or later BASE/FULL required as usual. CEX and DEX Showtime 4.1.307 for mM is also availble via online update (6MB).

#390 - mmanolos - December 13, 2012 // 3:23 am
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If you installed Rogero 4.30 v2.03 then you have the "Install Package Files" in app_home/PS3_GAME.

If you have only v2.0 then upgrade first to v2.03 from XMB.

#389 - weedge1212 - December 12, 2012 // 8:34 pm
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i just updated to rogero 4.30 v2 from kmeaw3.55. but i didn't update multiman first. i currently have multiman 4.0.1 installed. how do i install multiman 4.14 BASE??? install .pkg option is gone from xmb and when i select the .pkg from the multiman filemanager it just takes me back to xmb without installing. sorry if this has been addressed before. my searches yielded nothing. any help is appreciated.

#388 - vallejo18 - December 12, 2012 // 3:01 am
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Quote Originally Posted by BluRay View Post
Anyone managed to get StealthMan working on Rebug CFW? In here it just asks for the full version and freeze.

I knew I wasn't the only one with that problem. I'm trying out this other version of stealthMAN as a standalone app with the Name of a EURO game.