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Created: Tuesday, November 8 2005 13:20.56 CST Modified: Tuesday, November 8 2005 13:24.07 CST
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Julius 0.2a vs MS05-053 (win32k.sys)
Author: rfreeman # Views: 2664

Hi, following up on my previous blog on gdi32.dll, here are several possibly interesting subfunctions to look at. I apologize that there are so many and that I haven't verified that these are actually correct matches. In fact, there were so many changed subfunctions that I stopped pasting them after a while. Not all of them seem to pertain to (the) GDI. As mentioned in my previous blog, I'm about to head for the airport, so don't expect any updates before at least tomorrow night.

A selection of subfunctions that seemed interesting:

p: [ bf822ae9 ] == u: [ bf9291ad ][ SfnINLPDELETEITEMSTRUCT ] ,d = 0.0344, t = 4
[L10] -- Patched function copies memory and features more comparisons, and altered suspicious looping, and changed data constants.

p: [ bf829757 ] == u: [ bf830994 ][ GreCreateDIBitmapReal ] ,d = 0.0035, t = 4
[L10] -- Patched function copies memory and features changed data constants.
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf83bfc6 ] == u: [ bf843be8 ][ xxxInterSendMsgEx ] ,d = 0.0024, t = 4
[L10] -- Patched function copies memory and features changed data constants.
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf83e64e ] == u: [ bf846270 ][ NtGdiDoPalette ] ,d = 0.0148, t = 4
[L10] -- Patched function copies memory and features changed data constants.
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf844cf1 ] == u: [ bf849d28 ][ NtGdiPolyPolyDraw ] ,d = 0.0086, t = 4
[L10] -- Patched function copies memory and features changed data constants.
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf84e353 ] == u: [ bf8533bf ][ NtGdiGradientFill ] ,d = 0.0111, t = 4
[L10] -- Patched function copies memory and features changed data constants.
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf8521c0 ] == u: [ bf8567b7 ][ AsyncWindowPos ] ,d = 0.0394, t = 4
[L10] -- Patched function copies memory and features more comparisons, and altered suspicious looping, and changed data constants.
[L8 ] -- Functions are quite similar, but there are less signed comparisons.
[L7-] -- Original function loops but the patched version features more comparisons and changed data constants.
[L8 ] -- Patched function features a switch-case block with different data constants and number of Win32 API calls.

p: [ bf861af9 ] == u: [ bf8afde9 ][ scl_InitializeScaling ] ,d = 0.0094, t = 4
[L10] -- Patched function copies memory and features changed data constants, and altered suspicious looping.
[L8 ] -- Functions are quite similar, but there are less signed comparisons.
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf869784 ] == u: [ bf84770f ][ GreGetDIBitsInternal ] ,d = 0.0205, t = 8
[L10] -- Patched function copies memory and features changed data constants, and altered suspicious looping.
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf86978e ] == u: [ bf84770f ][ GreGetDIBitsInternal ] ,d = 0.0022, t = 4
[L10] -- Patched function copies memory and features changed data constants.
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf86c1e4 ] == u: [ bf85fe5e ][ GreStretchDIBitsInternal ] ,d = 0.0045, t = 4
[L10] -- Patched function copies memory and features changed data constants.
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf86e22e ] == u: [ bf861ea0 ][ NtGdiCreatePaletteInternal ] ,d = 0.0202, t = 4
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf872b5f ] == u: [ bf8667d1 ][ NtGdiEnumFontOpen ] ,d = 0.0231, t = 4
[L10] -- Patched function copies memory and features changed data constants.
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf89b5a8 ] == u: [ bf88f23f ][ WatchdogDrvGetDirectDrawInfo ] ,d = 0.0127, t = 4
[L10] -- Patched function copies memory and features changed data constants.
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf89ee02 ] == u: [ bf892a73 ][ DrvProbeAndCaptureDevmode ] ,d = 0.0029, t = 4
[L10] -- Patched function copies memory and features changed data constants.
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf8bd4f1 ] == u: [ bf8cb3ed ][ bEngFastFillEnum ] ,d = 0.0568, t = 8
[L10] -- Patched function copies memory and features changed data constants, and altered suspicious looping.
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf8c099f ] == u: [ bf83bc98 ][ GreGetTextFaceW ] ,d = 0.1450, t = 4
[L10] -- Patched function copies memory and features changed data constants, and altered suspicious looping.
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf8c51ab ] == u: [ bf8282f3 ][ SfnINOUTLPWINDOWPOS ] ,d = 0.0100, t = 2
[L10] -- Patched function copies memory and features changed data constants.
[L7-] -- Original function loops but the patched version features changed data constants.
[L3 ] -- Functions are identical except for data constants.

p: [ bf8dc774 ] == u: [ bf883039 ][ LoadCPUserPreferences ] ,d = 0.0557, t = 8
[L10] -- Patched function copies memory and features changed data constants, and altered suspicious looping.
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf8e9d79 ] == u: [ bf8e702b ][ NtGdiGetCharWidthW ] ,d = 0.0179, t = 4
[L10] -- Patched function copies memory and features changed data constants.
[L7-] -- Original function loops but the patched version features changed data constants.

p: [ bf8ea561 ] == u: [ bf8b33ef ][ vQuantizeXform ] ,d = 0.0465, t = 8
[L7-] -- Original function loops but the patched version features more comparisons and changed data constants.
[L6+] -- Patched function is very similar and features more boolean logic.

... TOO MANY TO LIST, SORRY ...





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