Dawn of War II has unlockable content; that is certain maps, campaign wargear, army painter colours and so on are locked by default, and have to be unlocked using special codes. People who pre-ordered the game got a code or two, and codes are also available through other promotional sources.
This unlockable content is implemented as follows:
Dawn Of War 3 Steam
The standard approaches to unlocking all of the content might include:
Neither of the above methods would work, due to the cryptographic checks done on the
content.bin and DOW2.exe files. The weakpoint of DoW2's system is how these checks are done. As previously stated, wintrust.dll (a Microsoft DLL which lives in C:WindowsSystem32 ) is used to make sure that the security catalogue files are valid and successfully verify DOW2.exe and content.bin, using the WinVerifyTrust[Ex] function. Furthermore, wintrust.dll itself is not cryptographically signed. If wintrust.dll is copied from the System32 directory to the dawn of war directory and then modified so that WinVerifyTrust always returns ERROR_SUCCESS , then the cryptographic checks are sidestepped (ERROR_SUCCESS is conveniently the value zero, so this simply means replacing the first five bytes of WinVerifyTrust with xor eax, eax; retn 12; or 33 C0 C2 0C 00 in machine code).
If
content.bin is now modified so that the unlock masks are all zero, then when the game is run, it'll load wintrust.dll from the game directory rather than the System32 directory (DLLs in the 'current' directory override those in the system directory by default), and when it comes to verify content.bin , the patched WinVerifyTrust returns ERROR_SUCCESS , and so the game believes that the file is still cryptographically signed. It then comes to see what content the GFWL account has unlocked by doing 'does UnlockMask bitwise-and UnlockBits equal UnlockMask ' for each unlock set, and as zero bitwise-and anything does equal zero, it'll unlock all of the content.
For further reading, see part 2.
This unlockable content is implemented as follows:
The standard approaches to unlocking all of the content might include:
Neither of the above methods would work, due to the cryptographic checks done on the
content.bin and DOW2.exe files. The weakpoint of DoW2's system is how these checks are done. As previously stated, wintrust.dll (a Microsoft DLL which lives in C:WindowsSystem32 ) is used to make sure that the security catalogue files are valid and successfully verify DOW2.exe and content.bin, using the WinVerifyTrust[Ex] function. Furthermore, wintrust.dll itself is not cryptographically signed. If wintrust.dll is copied from the System32 directory to the dawn of war directory and then modified so that WinVerifyTrust always returns ERROR_SUCCESS , then the cryptographic checks are sidestepped (ERROR_SUCCESS is conveniently the value zero, so this simply means replacing the first five bytes of WinVerifyTrust with xor eax, eax; retn 12; or 33 C0 C2 0C 00 in machine code).
If
content.bin is now modified so that the unlock masks are all zero, then when the game is run, it'll load wintrust.dll from the game directory rather than the System32 directory (DLLs in the 'current' directory override those in the system directory by default), and when it comes to verify content.bin , the patched WinVerifyTrust returns ERROR_SUCCESS , and so the game believes that the file is still cryptographically signed. It then comes to see what content the GFWL account has unlocked by doing 'does UnlockMask bitwise-and UnlockBits equal UnlockMask ' for each unlock set, and as zero bitwise-and anything does equal zero, it'll unlock all of the content.
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For further reading, see part 2.
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Video of CutlassAbout this mod
Base installer for current version of Elite Mod.
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