xerox
4 years ago
parent
bf0912d462
commit
43eb9688cf
@ -0,0 +1,190 @@
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/*
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MIT License
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Copyright (c) 2020 xerox
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#pragma once
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#include <Windows.h>
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#include <map>
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#include <atomic>
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#include <memory>
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#if _M_IX86
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#define OFFSET_TO_ADDRESS 0x1
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#elif _M_X64
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#define OFFSET_TO_ADDRESS 0x2
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#endif
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namespace hook
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{
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static void write_to_readonly(void* addr, void* data, int size)
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{
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DWORD old_flags;
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VirtualProtect((LPVOID)addr, size, PAGE_EXECUTE_READWRITE, &old_flags);
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memcpy((void*)addr, data, size);
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VirtualProtect((LPVOID)addr, size, old_flags, &old_flags);
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}
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class detour
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{
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public:
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detour(void* addr_to_hook, void* jmp_to, bool enable = true)
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: hook_addr(addr_to_hook), detour_addr(jmp_to), hook_installed(false)
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{
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//setup hook
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memcpy(
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jmp_code + OFFSET_TO_ADDRESS,
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&jmp_to,
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sizeof(jmp_to)
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);
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//save bytes
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memcpy(
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org_bytes,
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hook_addr,
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sizeof(org_bytes)
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);
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if(enable)
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install();
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}
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void install()
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{
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if (hook_installed.load())
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return;
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// mapped page is already read/write
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memcpy(hook_addr, jmp_code, sizeof(jmp_code));
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hook_installed.exchange(true);
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}
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void uninstall()
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{
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if (!hook_installed.load())
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return;
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// mapped page is already read/write
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memcpy(hook_addr, org_bytes, sizeof(org_bytes));
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hook_installed.exchange(false);
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}
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~detour() { uninstall(); }
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bool installed() { return hook_installed; }
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void* hook_address() { return hook_addr; }
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void* detour_address() { return detour_addr; }
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private:
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std::atomic<bool> hook_installed;
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void *hook_addr, *detour_addr;
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#if _M_IX86
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/*
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0: b8 ff ff ff ff mov eax, 0xffffffff
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5: ff e0 jmp eax
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*/
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unsigned char jmp_code[7] = {
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0xb8, 0x0, 0x0, 0x0, 0x0,
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0xFF, 0xE0
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};
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#elif _M_X64
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/*
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0: 48 b8 ff ff ff ff ff ff ff ff movabs rax,0xffffffffffffffff
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7: ff e0 jmp rax
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*/
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unsigned char jmp_code[12] = {
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0x48, 0xb8,
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0x0,
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0x0,
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0x0,
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0x0,
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0x0,
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0x0,
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0x0,
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0x0,
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0xff, 0xe0
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};
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#endif
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std::uint8_t org_bytes[sizeof(jmp_code)];
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};
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static std::map<void*, std::unique_ptr<detour>> hooks{};
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/*
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Author: xerox
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Date: 12/19/2019
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Create Hook without needing to deal with objects
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*/
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static void make_hook(void* addr_to_hook, void* jmp_to_addr, bool enable = true)
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{
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if (!addr_to_hook)
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return;
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hooks.insert({
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addr_to_hook,
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std::make_unique<detour>(
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addr_to_hook,
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jmp_to_addr,
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enable
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)}
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);
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}
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/*
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Author: xerox
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Date: 12/19/2019
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Enable hook given the address to hook
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*/
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static void enable(void* addr)
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{
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if (!addr)
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return;
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hooks.at(addr)->install();
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}
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/*
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Author: xerox
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Date: 12/19/2019
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Disable hook givent the address of the hook
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*/
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static void disable(void* addr)
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{
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if (!addr)
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return;
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hooks.at(addr)->uninstall();
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}
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/*
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Author: xerox
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Date: 12/19/2019
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Remove hook completely from vector
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*/
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static void remove(void* addr)
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{
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if (!addr)
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return;
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hooks.at(addr)->~detour();
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hooks.erase(addr);
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}
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}
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@ -0,0 +1,114 @@
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#pragma once
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#include <Windows.h>
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#include <winternl.h>
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#pragma comment(lib, "ntdll.lib")
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constexpr auto page_size = 0x1000;
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inline const char piddb_lock_sig[] = "\x48\x8D\x0D\x00\x00\x00\x00\xE8\x00\x00\x00\x00\x4C\x8B\x8C\x24";
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inline const char piddb_lock_mask[] = "xxx????x????xxxx";
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inline const char piddb_table_sig[] = "\x48\x8D\x0D\x00\x00\x00\x00\xE8\x00\x00\x00\x00\x48\x8D\x1D\x00\x00\x00\x00\x48\x85\xC0\x0F";
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inline const char piddb_table_mask[] = "xxx????x????xxx????xxxx";
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constexpr auto SystemModuleInformation = 11;
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constexpr auto SystemHandleInformation = 16;
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constexpr auto SystemExtendedHandleInformation = 64;
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#define MM_COPY_MEMORY_PHYSICAL 0x1
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#define MM_COPY_MEMORY_VIRTUAL 0x2
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typedef struct PiDDBCacheEntry
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{
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LIST_ENTRY list;
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UNICODE_STRING driver_name;
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ULONG time_stamp;
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NTSTATUS load_status;
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char _0x0028[16]; // data from the shim engine, or uninitialized memory for custom drivers
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}PIDCacheobj;
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typedef struct _SYSTEM_HANDLE
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{
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PVOID Object;
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HANDLE UniqueProcessId;
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HANDLE HandleValue;
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ULONG GrantedAccess;
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USHORT CreatorBackTraceIndex;
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USHORT ObjectTypeIndex;
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ULONG HandleAttributes;
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ULONG Reserved;
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} SYSTEM_HANDLE, * PSYSTEM_HANDLE;
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typedef struct _SYSTEM_HANDLE_INFORMATION_EX
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{
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ULONG_PTR HandleCount;
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ULONG_PTR Reserved;
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SYSTEM_HANDLE Handles[1];
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} SYSTEM_HANDLE_INFORMATION_EX, * PSYSTEM_HANDLE_INFORMATION_EX;
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typedef enum _POOL_TYPE {
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NonPagedPool,
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NonPagedPoolExecute,
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PagedPool,
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NonPagedPoolMustSucceed,
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DontUseThisType,
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NonPagedPoolCacheAligned,
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PagedPoolCacheAligned,
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NonPagedPoolCacheAlignedMustS,
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MaxPoolType,
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NonPagedPoolBase,
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NonPagedPoolBaseMustSucceed,
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NonPagedPoolBaseCacheAligned,
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NonPagedPoolBaseCacheAlignedMustS,
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NonPagedPoolSession,
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PagedPoolSession,
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NonPagedPoolMustSucceedSession,
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DontUseThisTypeSession,
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NonPagedPoolCacheAlignedSession,
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PagedPoolCacheAlignedSession,
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NonPagedPoolCacheAlignedMustSSession,
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NonPagedPoolNx,
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NonPagedPoolNxCacheAligned,
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NonPagedPoolSessionNx
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} POOL_TYPE;
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typedef struct _RTL_PROCESS_MODULE_INFORMATION
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{
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HANDLE Section;
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PVOID MappedBase;
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PVOID ImageBase;
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ULONG ImageSize;
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ULONG Flags;
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USHORT LoadOrderIndex;
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USHORT InitOrderIndex;
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USHORT LoadCount;
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USHORT OffsetToFileName;
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UCHAR FullPathName[256];
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} RTL_PROCESS_MODULE_INFORMATION, * PRTL_PROCESS_MODULE_INFORMATION;
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typedef struct _RTL_PROCESS_MODULES
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{
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ULONG NumberOfModules;
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RTL_PROCESS_MODULE_INFORMATION Modules[1];
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} RTL_PROCESS_MODULES, * PRTL_PROCESS_MODULES;
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typedef LARGE_INTEGER PHYSICAL_ADDRESS, * PPHYSICAL_ADDRESS;
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typedef struct _MM_COPY_ADDRESS {
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union {
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PVOID VirtualAddress;
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PHYSICAL_ADDRESS PhysicalAddress;
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};
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} MM_COPY_ADDRESS, * PMMCOPY_ADDRESS;
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using PEPROCESS = PVOID;
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using ExAllocatePool = PVOID(__stdcall*) (POOL_TYPE, SIZE_T);
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using ExAllocatePoolWithTag = PVOID(__stdcall*)(POOL_TYPE, SIZE_T, ULONG);
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using MmCopyMemory = NTSTATUS (__stdcall*)(PVOID, MM_COPY_ADDRESS,SIZE_T,ULONG,PSIZE_T);
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using DRIVER_INITIALIZE = NTSTATUS(__stdcall*)(std::uintptr_t, std::size_t);
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using ExAcquireResourceExclusiveLite = BOOLEAN(__stdcall*)(void*,bool);
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using RtlLookupElementGenericTableAvl = PIDCacheobj* (__stdcall*) (void*, void*);
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using RtlDeleteElementGenericTableAvl = bool(__stdcall*)(void*,void*);
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using ExReleaseResourceLite = bool(__stdcall*)(void*);
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using PsLookupProcessByProcessId = NTSTATUS(__fastcall*)(HANDLE, PEPROCESS*);
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using PsGetProcessSectionBaseAddress = void* (__fastcall*)(PEPROCESS);
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@ -0,0 +1,344 @@
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#pragma once
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#include <Windows.h>
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#include <cstdint>
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#include <string_view>
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#include <iterator>
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#include <fstream>
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#include <string>
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#include <map>
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#include <vector>
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#include <ntstatus.h>
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#include <winternl.h>
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#include <array>
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#include <algorithm>
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#include <string_view>
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#include "nt.hpp"
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namespace util
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{
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//--- ranges of physical memory
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static std::map<std::uintptr_t, std::size_t> pmem_ranges{};
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//--- validates the address
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static bool is_valid(std::uintptr_t addr)
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{
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for (auto range : pmem_ranges)
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if (addr >= range.first && addr <= range.first + range.second)
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return true;
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return false;
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}
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// Author: Remy Lebeau
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// taken from here: https://stackoverflow.com/questions/48485364/read-reg-resource-list-memory-values-incorrect-value
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static const auto init_ranges = ([&]() -> bool
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{
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HKEY h_key;
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DWORD type, size;
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LPBYTE data;
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RegOpenKeyEx(HKEY_LOCAL_MACHINE, "HARDWARE\\RESOURCEMAP\\System Resources\\Physical Memory", 0, KEY_READ, &h_key);
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RegQueryValueEx(h_key, ".Translated", NULL, &type, NULL, &size); //get size
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data = new BYTE[size];
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RegQueryValueEx(h_key, ".Translated", NULL, &type, data, &size);
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DWORD count = *(DWORD*)(data + 16);
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auto pmi = data + 24;
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for (int dwIndex = 0; dwIndex < count; dwIndex++)
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{
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pmem_ranges.emplace(*(uint64_t*)(pmi + 0), *(uint64_t*)(pmi + 8));
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pmi += 20;
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}
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delete[] data;
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RegCloseKey(h_key);
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return true;
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})();
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inline PIMAGE_FILE_HEADER get_file_header(void* base_addr)
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{
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if (!base_addr || *(short*)base_addr != 0x5A4D)
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return NULL;
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PIMAGE_DOS_HEADER dos_headers =
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reinterpret_cast<PIMAGE_DOS_HEADER>(base_addr);
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PIMAGE_NT_HEADERS nt_headers =
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reinterpret_cast<PIMAGE_NT_HEADERS>(
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reinterpret_cast<DWORD_PTR>(base_addr) + dos_headers->e_lfanew);
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return &nt_headers->FileHeader;
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}
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// this was taken from wlan's drvmapper:
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// https://github.com/not-wlan/drvmap/blob/98d93cc7b5ec17875f815a9cb94e6d137b4047ee/drvmap/util.cpp#L7
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static void open_binary_file(const std::string& file, std::vector<uint8_t>& data)
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{
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std::ifstream fstr(file, std::ios::binary);
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fstr.unsetf(std::ios::skipws);
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fstr.seekg(0, std::ios::end);
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const auto file_size = fstr.tellg();
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fstr.seekg(NULL, std::ios::beg);
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data.reserve(static_cast<uint32_t>(file_size));
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data.insert(data.begin(), std::istream_iterator<uint8_t>(fstr), std::istream_iterator<uint8_t>());
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}
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// get base address of kernel module
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//
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// taken from: https://github.com/z175/kdmapper/blob/master/kdmapper/utils.cpp#L30
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static std::uintptr_t get_module_base(const char* module_name)
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{
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void* buffer = nullptr;
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DWORD buffer_size = NULL;
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NTSTATUS status = NtQuerySystemInformation(static_cast<SYSTEM_INFORMATION_CLASS>(SystemModuleInformation), buffer, buffer_size, &buffer_size);
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while (status == STATUS_INFO_LENGTH_MISMATCH)
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{
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VirtualFree(buffer, NULL, MEM_RELEASE);
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buffer = VirtualAlloc(nullptr, buffer_size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
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status = NtQuerySystemInformation(static_cast<SYSTEM_INFORMATION_CLASS>(SystemModuleInformation), buffer, buffer_size, &buffer_size);
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}
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if (!NT_SUCCESS(status))
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{
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VirtualFree(buffer, NULL, MEM_RELEASE);
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return NULL;
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}
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const auto modules = static_cast<PRTL_PROCESS_MODULES>(buffer);
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for (auto idx = 0u; idx < modules->NumberOfModules; ++idx)
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{
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const std::string current_module_name = std::string(reinterpret_cast<char*>(modules->Modules[idx].FullPathName) + modules->Modules[idx].OffsetToFileName);
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if (!_stricmp(current_module_name.c_str(), module_name))
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{
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const uint64_t result = reinterpret_cast<uint64_t>(modules->Modules[idx].ImageBase);
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VirtualFree(buffer, NULL, MEM_RELEASE);
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return result;
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}
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}
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VirtualFree(buffer, NULL, MEM_RELEASE);
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return NULL;
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}
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// get base address of kernel module
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//
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// taken from: https://github.com/z175/kdmapper/blob/master/kdmapper/utils.cpp#L30
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static void* get_kernel_export(const char* module_name, const char* export_name, bool rva = false)
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{
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void* buffer = nullptr;
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DWORD buffer_size = NULL;
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NTSTATUS status = NtQuerySystemInformation(
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static_cast<SYSTEM_INFORMATION_CLASS>(SystemModuleInformation),
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buffer,
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buffer_size,
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&buffer_size
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);
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while (status == STATUS_INFO_LENGTH_MISMATCH)
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{
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VirtualFree(buffer, 0, MEM_RELEASE);
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buffer = VirtualAlloc(nullptr, buffer_size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
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status = NtQuerySystemInformation(
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static_cast<SYSTEM_INFORMATION_CLASS>(SystemModuleInformation),
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buffer,
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buffer_size,
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&buffer_size
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);
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}
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if (!NT_SUCCESS(status))
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{
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VirtualFree(buffer, 0, MEM_RELEASE);
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return 0;
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}
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const auto modules = static_cast<PRTL_PROCESS_MODULES>(buffer);
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for (auto idx = 0u; idx < modules->NumberOfModules; ++idx)
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{
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// find module and then load library it
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const std::string current_module_name =
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std::string(reinterpret_cast<char*>(
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modules->Modules[idx].FullPathName) +
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modules->Modules[idx].OffsetToFileName
|
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);
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if (!_stricmp(current_module_name.c_str(), module_name))
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{
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// had to shoot the tires off of "\\SystemRoot\\"
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std::string full_path = reinterpret_cast<char*>(modules->Modules[idx].FullPathName);
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full_path.replace(
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full_path.find("\\SystemRoot\\"),
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sizeof("\\SystemRoot\\") - 1,
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std::string(getenv("SYSTEMROOT")).append("\\")
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);
|
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const auto module_base =
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LoadLibraryEx(
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full_path.c_str(),
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NULL,
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||||
DONT_RESOLVE_DLL_REFERENCES
|
||||
);
|
||||
|
||||
PIMAGE_DOS_HEADER p_idh;
|
||||
PIMAGE_NT_HEADERS p_inh;
|
||||
PIMAGE_EXPORT_DIRECTORY p_ied;
|
||||
|
||||
PDWORD addr, name;
|
||||
PWORD ordinal;
|
||||
|
||||
p_idh = (PIMAGE_DOS_HEADER)module_base;
|
||||
if (p_idh->e_magic != IMAGE_DOS_SIGNATURE)
|
||||
return NULL;
|
||||
|
||||
p_inh = (PIMAGE_NT_HEADERS)((LPBYTE)module_base + p_idh->e_lfanew);
|
||||
if (p_inh->Signature != IMAGE_NT_SIGNATURE)
|
||||
return NULL;
|
||||
|
||||
if (p_inh->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress == 0)
|
||||
return NULL;
|
||||
|
||||
p_ied = (PIMAGE_EXPORT_DIRECTORY)((LPBYTE)module_base +
|
||||
p_inh->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress);
|
||||
|
||||
addr = (PDWORD)((LPBYTE)module_base + p_ied->AddressOfFunctions);
|
||||
name = (PDWORD)((LPBYTE)module_base + p_ied->AddressOfNames);
|
||||
ordinal = (PWORD)((LPBYTE)module_base + p_ied->AddressOfNameOrdinals);
|
||||
|
||||
// find exported function
|
||||
for (auto i = 0; i < p_ied->AddressOfFunctions; i++)
|
||||
if (!strcmp(export_name, (char*)module_base + name[i]))
|
||||
{
|
||||
if (!rva)
|
||||
{
|
||||
auto result = (void*)((std::uintptr_t)modules->Modules[idx].ImageBase + addr[ordinal[i]]);
|
||||
VirtualFree(buffer, NULL, MEM_RELEASE);
|
||||
return result;
|
||||
}
|
||||
else
|
||||
{
|
||||
auto result = (void*)addr[ordinal[i]];
|
||||
VirtualFree(buffer, NULL, MEM_RELEASE);
|
||||
return result;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
VirtualFree(buffer, NULL, MEM_RELEASE);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
namespace memory
|
||||
{
|
||||
template<std::size_t pattern_length>
|
||||
inline std::uintptr_t pattern_scan_kernel(const char(&signature)[pattern_length], const char(&mask)[pattern_length])
|
||||
{
|
||||
static const auto kernel_addr =
|
||||
LoadLibraryEx(
|
||||
"ntoskrnl.exe",
|
||||
NULL,
|
||||
DONT_RESOLVE_DLL_REFERENCES
|
||||
);
|
||||
|
||||
static const auto p_idh = reinterpret_cast<PIMAGE_DOS_HEADER>(kernel_addr);
|
||||
if (p_idh->e_magic != IMAGE_DOS_SIGNATURE)
|
||||
return NULL;
|
||||
|
||||
static const auto p_inh = reinterpret_cast<PIMAGE_NT_HEADERS>((LPBYTE)kernel_addr + p_idh->e_lfanew);
|
||||
if (p_inh->Signature != IMAGE_NT_SIGNATURE)
|
||||
return NULL;
|
||||
|
||||
static auto current_section = reinterpret_cast<PIMAGE_SECTION_HEADER>(p_inh + 1);
|
||||
static const auto first_section = current_section;
|
||||
static const auto num_sec = p_inh->FileHeader.NumberOfSections;
|
||||
static std::atomic<bool> ran_before = false;
|
||||
|
||||
//
|
||||
// only run this once.
|
||||
//
|
||||
if(!ran_before.exchange(true))
|
||||
for (; current_section < first_section + num_sec; ++current_section)
|
||||
if(!strcmp(reinterpret_cast<char*>(current_section->Name), "PAGE"))
|
||||
break;
|
||||
|
||||
static const auto page_section_begin =
|
||||
reinterpret_cast<std::uint64_t>(kernel_addr) + current_section->VirtualAddress;
|
||||
|
||||
const auto pattern_view = std::string_view{
|
||||
reinterpret_cast<char*>(page_section_begin),
|
||||
current_section->SizeOfRawData
|
||||
};
|
||||
|
||||
std::array<std::pair<char, char>, pattern_length - 1> pattern{};
|
||||
|
||||
for (std::size_t index = 0; index < pattern_length - 1; index++)
|
||||
pattern[index] = { signature[index], mask[index] };
|
||||
|
||||
auto resultant_address = std::search(
|
||||
pattern_view.cbegin(),
|
||||
pattern_view.cend(),
|
||||
pattern.cbegin(),
|
||||
pattern.cend(),
|
||||
[](char left, std::pair<char, char> right) -> bool {
|
||||
return (right.second == '?' || left == right.first);
|
||||
});
|
||||
|
||||
return resultant_address == pattern_view.cend() ? 0 : reinterpret_cast<std::uintptr_t>(resultant_address.operator->());
|
||||
}
|
||||
|
||||
//
|
||||
// be aware that this may not work for win8 or win7!
|
||||
//
|
||||
inline void* get_piddb_lock()
|
||||
{
|
||||
static const auto absolute_addr_instruction =
|
||||
pattern_scan_kernel(
|
||||
piddb_lock_sig,
|
||||
piddb_lock_mask
|
||||
);
|
||||
|
||||
static const auto ntoskrnl_in_my_process =
|
||||
reinterpret_cast<std::uintptr_t>(GetModuleHandle("ntoskrnl.exe"));
|
||||
|
||||
if (!absolute_addr_instruction || !ntoskrnl_in_my_process)
|
||||
return {};
|
||||
|
||||
const auto lea_rip_rva = *(PLONG)(absolute_addr_instruction + 3);
|
||||
const auto real_rva = (absolute_addr_instruction + 7 + lea_rip_rva) - ntoskrnl_in_my_process;
|
||||
static const auto kernel_base = util::get_module_base("ntoskrnl.exe");
|
||||
|
||||
if (!kernel_base)
|
||||
return {};
|
||||
|
||||
return reinterpret_cast<void*>(kernel_base + real_rva);
|
||||
}
|
||||
|
||||
//
|
||||
// be aware that this may not work for win8 or win7!
|
||||
//
|
||||
inline void* get_piddb_table()
|
||||
{
|
||||
static const auto absolute_addr_instruction =
|
||||
pattern_scan_kernel(
|
||||
piddb_table_sig,
|
||||
piddb_table_mask
|
||||
);
|
||||
|
||||
static const auto ntoskrnl_in_my_process =
|
||||
reinterpret_cast<std::uintptr_t>(GetModuleHandle("ntoskrnl.exe"));
|
||||
|
||||
if (!absolute_addr_instruction || !ntoskrnl_in_my_process)
|
||||
return {};
|
||||
|
||||
const auto lea_rip_rva = *(PLONG)(absolute_addr_instruction + 3);
|
||||
const auto real_rva = (absolute_addr_instruction + 7 + lea_rip_rva) - ntoskrnl_in_my_process;
|
||||
static const auto kernel_base = util::get_module_base("ntoskrnl.exe");
|
||||
|
||||
if (!kernel_base)
|
||||
return {};
|
||||
|
||||
return reinterpret_cast<void*>(kernel_base + real_rva);
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in new issue