The free OSR Learning Library has more than 50 articles on a wide variety of topics about writing and debugging device drivers and Minifilters. From introductory level to advanced. All the articles have been recently reviewed and updated, and are written using the clear and definitive style you've come to expect from OSR over the years.
Check out The OSR Learning Library at: https://www.osr.com/osr-learning-library/
I am trying to call MmCopyVirtualMemory but it keeps returning 0x8000000d. just to give some context: The code is running in the right process context and the virtual address is valid. The virtual address in this case basically an address where my DLL is mapped. I am trying to write something to the in memory image using MmCopyVirtualMemory. !vad on the address indicates that it is EXECUTE_WRITECOPY. I was under the impression that if anything is written to a page with EXECUTE_WRITECOPY protection, a private copy of the page will be created for that process. However, I am seeing MmCopyVirtualMemory consistently failing with error 0x8000000d.
And idea what could be going on? Thanks!
|Upcoming OSR Seminars|
|OSR has suspended in-person seminars due to the Covid-19 outbreak. But, don't miss your training! Attend via the internet instead!|
|Writing WDF Drivers||7 Dec 2020||LIVE ONLINE|
|Internals & Software Drivers||25 Jan 2021||LIVE ONLINE|
|Developing Minifilters||8 March 2021||LIVE ONLINE|