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#pragma once
#include "../util/syscalls.h"
namespace util {
template<typename T = uint32_t>
class base_process {
protected:
HANDLE m_handle;
int m_id;
std::string m_name;
std::unordered_map<std::string, uintptr_t> m_modules;
public:
base_process() = default;
~base_process() = default;
bool open() {
CLIENT_ID cid = { HANDLE(m_id), 0 };
OBJECT_ATTRIBUTES oa;
oa.Length = sizeof(oa);
oa.Attributes = 0;
oa.RootDirectory = 0;
oa.SecurityDescriptor = 0;
oa.ObjectName = 0;
oa.SecurityQualityOfService = 0;
static auto nt_open = g_syscalls.get<native::NtOpenProcess>("NtOpenProcess");
auto status = nt_open(&m_handle, PROCESS_ALL_ACCESS, &oa, &cid);
if (!NT_SUCCESS(status)) {
io::log_error("failed to open handle to {}, status {:#X}.", m_name, (status & 0xFFFFFFFF));
return false;
}
io::log("opened handle to {}.", m_name);
return true;
}
bool read(const uintptr_t addr, void* data, size_t size) {
static auto nt_read = g_syscalls.get<native::NtReadVirtualMemory>("NtReadVirtualMemory");
ULONG read;
auto status = nt_read(m_handle, reinterpret_cast<void*>(addr), data, size, &read);
if (!NT_SUCCESS(status)) {
io::log_error("failed to read at {:x}, status {:#X}.", addr, (status & 0xFFFFFFFF));
return false;
}
return true;
}
bool write(const uintptr_t addr, void* data, size_t size) {
static auto nt_write = g_syscalls.get<native::NtWiteVirtualMemory>("NtWriteVirtualMemory");
ULONG wrote;
auto status = nt_write(m_handle, reinterpret_cast<void*>(addr), data, size, &wrote);
if (!NT_SUCCESS(status)) {
io::log_error("failed to write to {}, status {:#X}.", m_name, (status & 0xFFFFFFFF));
return false;
}
return true;
}
bool free(const uintptr_t addr, size_t size, uint32_t type = MEM_RELEASE) {
static auto nt_free = g_syscalls.get<native::NtFreeVirtualMemory>("NtFreeVirtualMemory");
SIZE_T win_size = size;
void *addr_cast = reinterpret_cast<void*>(addr);
auto status = nt_free(m_handle, &addr_cast, &win_size, MEM_RELEASE);
if (!NT_SUCCESS(status)) {
io::log_error("failed to free at {:x}, status {:#X}.", addr, (status & 0xFFFFFFFF));
return false;
}
return true;
}
bool info(PROCESSINFOCLASS proc_info, void* data, size_t size) {
static auto nt_proc_info = g_syscalls.get<native::NtQueryInformationProcess>("NtQueryInformationProcess");
auto status = nt_proc_info(m_handle, proc_info, data, size, nullptr);
if (!NT_SUCCESS(status)) {
io::log_error("failed to query {} info, status {:#X}.", m_name, (status & 0xFFFFFFFF));
return false;
}
return true;
}
bool thread(const uintptr_t func) {
static auto nt_create = g_syscalls.get<native::NtCreateThreadEx>("NtCreateThreadEx");
static auto nt_wait = g_syscalls.get<native::NtWaitForSingleObject>("NtWaitForSingleObject");
HANDLE out;
auto status = nt_create(&out, THREAD_ALL_ACCESS, nullptr, m_handle, reinterpret_cast<LPTHREAD_START_ROUTINE>(func), 0, 0x4, 0, 0, 0, 0);
if (!NT_SUCCESS(status)) {
io::log_error("failed to create thread in {}, status {:#X}.", m_name, (status & 0xFFFFFFFF));
return false;
}
status = nt_wait(out, false, nullptr);
if (!NT_SUCCESS(status)) {
io::log_error("failed to wait for handle {}, status {:#X}.", out, (status & 0xFFFFFFFF));
util::close_handle(out);
return false;
}
if (!util::close_handle(out)) {
return false;
}
return true;
}
bool enum_modules() {
m_modules.clear();
static auto peb_addr = peb();
T ldr;
if (!read(peb_addr + offsetof(native::peb_t<T>, Ldr), &ldr, sizeof(ldr))) {
return false;
}
const auto list_head = ldr + offsetof(native::peb_ldr_data_t<T>, InLoadOrderModuleList);
T load_order_flink;
if (!read(list_head, &load_order_flink, sizeof(load_order_flink))) {
return false;
}
native::ldr_data_table_entry_t<T> entry;
for (auto list_curr = load_order_flink; list_curr != list_head;) {
if (!read(list_curr, &entry, sizeof(entry))) {
return false;
}
list_curr = entry.InLoadOrderLinks.Flink;
std::vector<wchar_t> name_vec(entry.FullDllName.Length);
if (!read(entry.FullDllName.Buffer, &name_vec[0], name_vec.size())) {
continue;
}
auto name = util::wide_to_multibyte(name_vec.data());
auto pos = name.rfind('\\');
if (pos != std::string::npos) {
name = name.substr(pos + 1);
std::transform(name.begin(), name.end(), name.begin(), ::tolower);
m_modules[name] = entry.DllBase;
}
}
return true;
}
bool close() {
auto ret = util::close_handle(m_handle);
if (ret) {
io::log("closed handle to {}.", m_name);
}
m_handle = INVALID_HANDLE_VALUE;
return ret;
}
uintptr_t peb() {
bool is64 = sizeof(T) == sizeof(uint64_t);
if (is64) {
native::PROCESS_EXTENDED_BASIC_INFORMATION proc_info;
proc_info.Size = sizeof(proc_info);
if (!info(ProcessBasicInformation, &proc_info, sizeof(proc_info))) {
return {};
}
return uintptr_t(proc_info.BasicInfo.PebBaseAddress);
}
uintptr_t addr;
if (!info(ProcessWow64Information, &addr, sizeof(addr))) {
return {};
}
return addr;
}
uintptr_t allocate(size_t size, uint32_t type, uint32_t protection) {
static auto nt_alloc = g_syscalls.get<native::NtAllocateVirtualMemory>("NtAllocateVirtualMemory");
void* alloc = nullptr;
SIZE_T win_size = size;
auto status = nt_alloc(m_handle, &alloc, 0, &win_size, type, protection);
if (!NT_SUCCESS(status)) {
io::log_error("failed to allocate in {}, status {:#X}.", m_name, (status & 0xFFFFFFFF));
return {};
}
return uintptr_t(alloc);
}
auto &modules() { return m_modules; }
auto &handle() { return m_handle; }
auto &name() { return m_name; }
auto &id() { return m_id; }
};
struct process_data_t {
std::string name;
int id;
};
struct thread_data_t {
int id;
uintptr_t handle;
uint32_t state;
};
struct system_data_t {
std::vector<process_data_t> processes;
std::vector<thread_data_t> threads;
};
class process32 : public base_process<uint32_t> {
public:
process32(const process_data_t &data) {
m_name = data.name;
m_id = data.id;
}
uintptr_t module_export(const uintptr_t base, const std::string_view func);
uintptr_t map(const std::string_view module_name);
};
class process64 : public base_process<uint64_t> {
};
struct handle_info_t {
uint32_t access;
uintptr_t handle;
uint32_t obj_type;
};
bool fetch_system_data(system_data_t &out);
bool fetch_process_handles(const int pid, std::vector<handle_info_t> &out);
};
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