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  4. VRChat added VRCA (?maybe VRCW too) protection

VRChat added VRCA (?maybe VRCW too) protection

Scheduled Pinned Locked Moved General Discussions
protectionvrchatvrcaripping
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  • CrystalDustC
    CrystalDustC
    CrystalDust
    wrote on last edited by
    #114

    https://security.stackexchange.com/questions/17044/when-using-aes-and-cbc-is-it-necessary-to-keep-the-iv-secret

    1 Reply Last reply
    0
    • CrystalDustC
      CrystalDustC
      CrystalDust
      wrote on last edited by
      #115

      https://frereit.de/aes_gcm/#keystream-generation

      CrystalDustC 1 Reply Last reply
      0
      • P
        P
        Plexian
        wrote on last edited by
        #116

        Damn... This is unfortunate news. I hope someone will find some method to be able to rip models again. Probably going to be awhile, though.

        1 Reply Last reply
        0
        • MyongM Myong referenced this topic on
        • CrystalDustC
          CrystalDustC
          CrystalDust
          wrote on last edited by
          #117

          so i went out of my way and memory dumped vrchat so if anyone want to look throw it go for it [register or login to view this hidden content]

          E ReymR StinkerGuy115S 3 Replies Last reply
          👍
          1
          • VisaeresV
            VisaeresV
            Visaeres
            wrote on last edited by
            #118

            XDDDDDDDDDDDDDDDDDD

            Wow that's a lot a' words, too bad I'm not reading em'

            1 Reply Last reply
            👰
            -1
            • CrystalDustC CrystalDust

              so i went out of my way and memory dumped vrchat so if anyone want to look throw it go for it [register or login to view this hidden content]

              E
              E
              esau_winchester
              wrote on last edited by
              #119

              @crystaldustie can this be used to rip models again ?

              1 Reply Last reply
              0
              • J
                J
                Jumbojaw
                wrote on last edited by
                #120

                Since VRC is a DX11 game, would it be possible to use gpu buffer rippers like NinjaRipper to extract at least the mesh & textures? Or would anticheat cause problems here?

                CrystalDustC 1 Reply Last reply
                0
                • J Jumbojaw

                  Since VRC is a DX11 game, would it be possible to use gpu buffer rippers like NinjaRipper to extract at least the mesh & textures? Or would anticheat cause problems here?

                  CrystalDustC
                  CrystalDustC
                  CrystalDust
                  wrote on last edited by
                  #121

                  @Jumbojaw maybe

                  1 Reply Last reply
                  0
                  • CrystalDustC CrystalDust

                    https://frereit.de/aes_gcm/#keystream-generation

                    CrystalDustC
                    CrystalDustC
                    CrystalDust
                    wrote on last edited by
                    #122

                    @crystaldustie vrchat is encryted in aes gcm

                    1 Reply Last reply
                    0
                    • CrystalDustC CrystalDust

                      so i went out of my way and memory dumped vrchat so if anyone want to look throw it go for it [register or login to view this hidden content]

                      ReymR
                      ReymR
                      Reym
                      wrote on last edited by
                      #123

                      @crystaldustie how you do memory dump? there is a part i want to check

                      I'm bad at understanding english word

                      I fix .vrca/.vrcw stuff for free and for fun! Depending on file, every outcome and vary might be different than the original avatar has due to the toggles and much more, send me a pm if you need an avi that need to fix or cracking a password locked avatar or send me .vrca file or through my pms and i will extract/fix them for you!

                      request is semi-open, only on unencrypted __data file aka .vrca or .vrcw

                      CrystalDustC 1 Reply Last reply
                      0
                      • ReymR Reym

                        @crystaldustie how you do memory dump? there is a part i want to check

                        CrystalDustC
                        CrystalDustC
                        CrystalDust
                        wrote on last edited by
                        #124

                        @Reym run vrchat without eac

                        ReymR 1 Reply Last reply
                        0
                        • CrystalDustC
                          CrystalDustC
                          CrystalDust
                          wrote on last edited by
                          #125

                          and use process hacker

                          1 Reply Last reply
                          0
                          • CrystalDustC CrystalDust

                            so i went out of my way and memory dumped vrchat so if anyone want to look throw it go for it [register or login to view this hidden content]

                            StinkerGuy115S
                            StinkerGuy115S
                            StinkerGuy115
                            wrote on last edited by
                            #126

                            @crystaldustie pretty cool, lotta data to shift through and sort. Put that bad boy in a hex editor and type "avtr" lmao. Or throw it into WinDbg.

                            Oh yea thought I'd share this, VRChat creates a __data file in C:\Users\username\AppData\LocalLow\Unity\Temp\

                            It's an avatar data file. VRChat creates it and instantly deletes it. I set permissions to not allow VRChat to delete files in that folder in hopes it might be some sorta briefly made unencrypted data file, I genuinely believe the VRChat devs would be that lazy to do something like this lol. Unfortunately file is still encrypted, though it's essential to loading the avatar.

                            Disable VRChat's access to the folder and the avatar throws an error bot.

                            1 Reply Last reply
                            1
                            • CrystalDustC CrystalDust

                              @Reym run vrchat without eac

                              ReymR
                              ReymR
                              Reym
                              wrote on last edited by
                              #127

                              @crystaldustie sounds risky, do i just task kill eac as the game starts?

                              I'm bad at understanding english word

                              I fix .vrca/.vrcw stuff for free and for fun! Depending on file, every outcome and vary might be different than the original avatar has due to the toggles and much more, send me a pm if you need an avi that need to fix or cracking a password locked avatar or send me .vrca file or through my pms and i will extract/fix them for you!

                              request is semi-open, only on unencrypted __data file aka .vrca or .vrcw

                              CrystalDustC 1 Reply Last reply
                              0
                              • ReymR Reym

                                @crystaldustie sounds risky, do i just task kill eac as the game starts?

                                CrystalDustC
                                CrystalDustC
                                CrystalDust
                                wrote on last edited by
                                #128

                                @Reym u need to just go to vrchat main exe that is in a steam folder and launch that

                                Dr.beepD 1 Reply Last reply
                                👍
                                0
                                • CrystalDustC CrystalDust

                                  @Reym u need to just go to vrchat main exe that is in a steam folder and launch that

                                  Dr.beepD
                                  Dr.beepD
                                  Dr.beep
                                  wrote on last edited by
                                  #129

                                  @crystaldustie
                                  That version of the game isn't very useful because from a server side perspective it doesn't even give the ok to download models that aren't yours, I guess it's ok if you need to rip models that are yours , but I checked the network traffic for this and it doesn't actually send data that isn't yours

                                  Currently investigating ways to bypass VRC's new encryption on VRCA's and VRCW's. Msg me if you have any leads

                                  1 Reply Last reply
                                  0
                                  • StinkerGuy115S
                                    StinkerGuy115S
                                    StinkerGuy115
                                    wrote on last edited by
                                    #130

                                    @Reym @crystaldustie @Dr.beep not sure if it is useful but you can still kill the EAC process post launch. still download models, go to public worlds and such. though im sure theres some background service running, however I tried poking around with Process Explorer and didnt see anything related to EAC running.

                                    But I dont think this is useful as injections need to happen pre-launch unless someone has anything they can go off of with this?

                                    1 Reply Last reply
                                    0
                                    • yipY
                                      yipY
                                      yip
                                      wrote on last edited by
                                      #131

                                      Is it possible to rip worlds from ChillOutVR? Just curious.

                                      You know, You're kinda gay for viewing my page.

                                      1 Reply Last reply
                                      0
                                      • StinkerGuy115S
                                        StinkerGuy115S
                                        StinkerGuy115
                                        wrote on last edited by [[global:former-user]]
                                        #132

                                        Did anyone else see this? Lmao
                                        [REMOVED BY ADMIN]

                                        D AloofA 2 Replies Last reply
                                        0
                                        • StinkerGuy115S StinkerGuy115

                                          Did anyone else see this? Lmao
                                          [REMOVED BY ADMIN]

                                          D
                                          D
                                          DeepDishBussy
                                          wrote on last edited by
                                          #133

                                          @StinkerGuy115 lmao what is that 😲

                                          DM me if any of my links go down or if a file is outdated

                                          StinkerGuy115S 1 Reply Last reply
                                          0

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