From 96526f8cdefc791419ce0ab3b86aee0f00394975 Mon Sep 17 00:00:00 2001
From: _xeroxz <xerox@back.engineering>
Date: Tue, 3 Nov 2020 07:28:26 +0000
Subject: [PATCH] Update README.md

---
 README.md | 40 +++++++++++++++-------------------------
 1 file changed, 15 insertions(+), 25 deletions(-)

diff --git a/README.md b/README.md
index d00b705..6b186af 100644
--- a/README.md
+++ b/README.md
@@ -14,34 +14,24 @@ Link to write up can be found [here](https://back.engineering/post/virtual-memor
 # example
 
 ```cpp
-// only time driver needs to be loaded is to init physmeme/kernel_ctx...
-nasa::load_drv();
-nasa::kernel_ctx kernel;
-if (kernel.clear_piddb_cache(nasa::drv_key, util::get_file_header((void*)raw_driver)->TimeDateStamp))
-std::cout << "[+] flushed PIDDB Cache for physmeme driver..." << std::endl;
-nasa::unload_drv();
-
-const std::pair<unsigned, virt_addr_t> my_proc_data = { GetCurrentProcessId(), virt_addr_t{ GetModuleHandle(NULL) } };
-std::cout << "[+] my pid: " << std::hex << my_proc_data.first << std::endl;
-std::cout << "[+] my base: " << std::showbase << std::hex << my_proc_data.second.value << std::endl;
-
-nasa::mem_ctx my_proc(kernel, my_proc_data.first);
-const auto module_base = my_proc_data.second;
-
-std::cout << "[+] base address pml4e: " << std::hex << my_proc[module_base.pml4_index].value << std::endl;
-std::cout << "[+] base address pdpte: " << std::hex << my_proc[{module_base.pml4_index, module_base.pdpt_index}].value << std::endl;
-std::cout << "[+] base address pde: " << std::hex << my_proc[{module_base.pml4_index, module_base.pdpt_index, module_base.pd_index}].value << std::endl;
-std::cout << "[+] base address pte: " << std::hex << my_proc[{module_base.pml4_index, module_base.pdpt_index, module_base.pd_index, module_base.pt_index}].value << std::endl;
+vdm::vdm_ctx vdm;
+nasa::mem_ctx my_proc(vdm);
+
+const auto ntoskrnl_base =
+reinterpret_cast<void*>(
+	util::get_kmodule_base("ntoskrnl.exe"));
+
+const auto ntoskrnl_pde = my_proc.get_pde(ntoskrnl_base);
+std::printf("[+] pde.present -> %d\n", ntoskrnl_pde.second.present);
+std::printf("[+] pde.pfn -> 0x%x\n", ntoskrnl_pde.second.pfn);
+std::printf("[+] pde.large_page -> %d\n", ntoskrnl_pde.second.large_page);
 ```
 
 ```
-[+] flushed PIDDB Cache for physmeme driver...
-[+] my pid: 2634
-[+] my base: 00007FF64BBB0000
-[+] base address pml4e: 0xa000000d82b3867
-[+] base address pdpte: 0xa000002df3b4867
-[+] base address pde: 0xa0000016fcb5867
-[+] base address pte: 0x80000001b1185025
+[+] pde.present -> 1
+[+] pde.pfn -> 0x10400
+[+] pde.large_page -> 1
+[+] press any key to close...
 ```
 
 # table entry manipulation