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DllBlock: hook VirtualAlloc/VirtualProtect for dynamic code exclusions #419

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MouriNaruto merged 1 commit into M2Team:main from dinhngtu:iflyfix

May 26, 2024

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dinhngtu commented May 25, 2024

Compatibility fix for iFlyIME.

The procedure is as following:

During NtMapViewOfSection hook: create a list of caller address ranges where dynamic code is allowed
Hook VirtualAlloc(Ex)/VirtualProtect(Ex):
- Find caller IP with _ReturnAddress()
- If caller IP is in optout range, temporarily disable dynamic code optout before calling real function
Hook NtUnmapViewOfSection to cleanup the address range list as needed

Tested with Explorer Patcher, Translucent Flyouts, Sogou Pinyin and iFlyIME.


          DllBlock: hook VirtualAlloc/VirtualProtect for dynamic code exclusions

ce81e6a

MouriNaruto merged commit db69626 into M2Team:main

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dinhngtu deleted the iflyfix branch

May 26, 2024 01:56

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