WRC PKG files

[AgentHeX0007]

The WRC script on the QuickBMS site no longer works with the latest WRC 10 game .PKG files.

Header of a WRC 7/8/9 .PKG file:
ASCII:

Code: Select all

PPKG���

HEX:

Code: Select all

50 50 4B 47 02 00 00 00

Header of a WRC 10 .PKG file:
ASCII:

Code: Select all

4wH;Z…0PÑû‘ÿi[Ýêãˆæxð­Ç¨Ò”$ëUòA“G¸2¡‰9/aªS‹.e…H”97À“qÈå·¢¨U:%#y}N!`ÀK?‹´¼«~ߌÿZ’ªç
ä:èm_!ˆA..*2·pœ2&ÒÕïÿ€19ª¾hÊþÁ¡[Íò»ˆ¼?²QWsνÐa¼®ûM@<]VŠHØ^jLÐ1Ž±§XÍÿz֏û¶LYÇÞR1Tì¿3Z·‡á/¶Hì×µ}´Ê¡z¯ž9ÛƒsùŸî¤Ñ ¶=£HxE·Ñ¯±zG0sðK· ÷™ç–„ÖZê ÀR4

HEX:

Code: Select all

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

Every WRC 10 .PKG file now has the above block identical at the beginning of every chunk file.

As a note they released a demo version of WRC 10 which used the original .PKG format as used in WRC 7/8/9 and the WRC7.bms script worked fine. Now in the retail version of WRC 10 they have changed something to block us from extracting the .PKG files.
I have .exe's of the demo and the retail game and have tried to reverse engineer.
Does anyone have an idea of what they have done?

Thanks in advance

[aluigi]

Did you use the script 0.2.1?
I updated it for WRC 10 just few weeks ago

[AgentHeX0007]

I did not notice that you had updated the WRC 7 script to support WRC 10

I had a feeling that the devs were using a key.

Thanks for all your great work, I hope they do not make it even harder to unpack the files in a future update.