I commited today plugin for processing 64bit kernel resource with name "FUNCTIONEXTENTLIST" (located in RCDATA)
It seems that processing of this resource happens in huge unnamed sub called from famous KiFilterFiberContext, so this is apparently part of PatchGuard. Format of this resource relative simple.
At start we have signature CTXE for compressed data (LTXE for noncompressed but I have never seen this). Data unpacking with RtlDecompressBufferEx function. In packed data we have table with pair offsets, first to RUNTIME_FUNCTION recognised from IDA and second to some additional RUNTIME_FUNCTION (which usually skipped in IDA Pro for unknown reason)
And even after calling this plugin there are lots of some valid RUNTIME_FUNCTION in .pdata section - I don`t know why
It seems that processing of this resource happens in huge unnamed sub called from famous KiFilterFiberContext, so this is apparently part of PatchGuard. Format of this resource relative simple.
At start we have signature CTXE for compressed data (LTXE for noncompressed but I have never seen this). Data unpacking with RtlDecompressBufferEx function. In packed data we have table with pair offsets, first to RUNTIME_FUNCTION recognised from IDA and second to some additional RUNTIME_FUNCTION (which usually skipped in IDA Pro for unknown reason)
And even after calling this plugin there are lots of some valid RUNTIME_FUNCTION in .pdata section - I don`t know why