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GlosSI-fork/Injector/Injector.cpp
2016-11-29 18:30:56 +01:00

133 lines
3.2 KiB
C++

#include "Injector.h"
#include <iostream>
void Injector::TakeDebugPrivilege()
{
HANDLE hProcess = GetCurrentProcess(), hToken;
TOKEN_PRIVILEGES priv;
LUID luid = { NULL };
OpenProcessToken(hProcess, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
LookupPrivilegeValue(0, SE_DEBUG_NAME, &luid);
priv.PrivilegeCount = 1;
priv.Privileges[0].Luid = luid;
priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
AdjustTokenPrivileges(hToken, false, &priv, sizeof(priv), NULL, NULL);
CloseHandle(hToken);
CloseHandle(hProcess);
}
int Injector::Inject(DWORD pid, std::wstring &libPath)
{
HANDLE hProcess = NULL, allocAddress = NULL, hRemoteThread = NULL;
LPTHREAD_START_ROUTINE pfnThreadRtn = NULL;
size_t pathSize = (libPath.length() + 1) * sizeof(wchar_t);
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_CREATE_THREAD | PROCESS_VM_OPERATION | PROCESS_VM_WRITE, false, pid);
if (!hProcess)
return 1;
allocAddress = VirtualAllocEx(hProcess, NULL, pathSize, MEM_COMMIT, PAGE_READWRITE);
if (!allocAddress)
{
CloseHandle(hProcess);
return 2;
}
if (!WriteProcessMemory(hProcess, (LPVOID)allocAddress, libPath.c_str(), pathSize, NULL))
{
VirtualFreeEx(hProcess, allocAddress, pathSize, MEM_DECOMMIT);
CloseHandle(hProcess);
return 3;
}
pfnThreadRtn = reinterpret_cast<PTHREAD_START_ROUTINE>(GetProcAddress(GetModuleHandle(L"Kernel32"), "LoadLibraryW"));
if (!pfnThreadRtn)
{
VirtualFreeEx(hProcess, allocAddress, pathSize, MEM_DECOMMIT);
CloseHandle(hProcess);
return 4;
}
hRemoteThread = CreateRemoteThread(hProcess, NULL, 0, pfnThreadRtn, allocAddress, 0, NULL);
if (!hRemoteThread)
{
VirtualFreeEx(hProcess, allocAddress, pathSize, MEM_DECOMMIT);
CloseHandle(hProcess);
return 5;
}
WaitForSingleObject(hRemoteThread, INFINITE);
CloseHandle(hRemoteThread);
VirtualFreeEx(hProcess, allocAddress, pathSize, MEM_DECOMMIT);
CloseHandle(hProcess);
return 0;
}
int Injector::Eject(DWORD pid, std::wstring &libPath)
{
HANDLE hProcess = NULL, hRemoteThread = NULL;
HMODULE hLibMod = NULL;
LPTHREAD_START_ROUTINE pfnThreadRtn = NULL;
if (!findModule(pid, libPath, hLibMod))
return 2;
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_CREATE_THREAD | PROCESS_VM_OPERATION, false, pid);
if (!hProcess)
return 1;
pfnThreadRtn = (PTHREAD_START_ROUTINE) GetProcAddress(GetModuleHandle(L"Kernel32"), "FreeLibrary");
if (!pfnThreadRtn)
{
CloseHandle(hProcess);
return 3;
}
hRemoteThread = CreateRemoteThread(hProcess, NULL, NULL, pfnThreadRtn, hLibMod, NULL, NULL);
if (!hRemoteThread)
return 4;
WaitForSingleObject(hRemoteThread, INFINITE);
CloseHandle(hProcess);
return 0;
}
bool Injector::findModule(DWORD pid, std::wstring &libPath, HMODULE &hMod)
{
MODULEENTRY32W entry = { sizeof(entry) };
HANDLE snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pid);
if (Module32FirstW(snapshot, &entry) == TRUE)
{
while (Module32NextW(snapshot, &entry) == TRUE)
{
std::wstring ModuleName(entry.szModule);
std::wstring ExePath(entry.szExePath);
if (ModuleName == libPath || ExePath == libPath)
{
hMod = (HMODULE)entry.modBaseAddr;
CloseHandle(snapshot);
return true;
}
}
}
CloseHandle(snapshot);
return false;
}