Presale wallet file brute force tools. This is to help people who don't exactly remember their passwords

bruteforce-presale.js

const spawn = require('child_process').spawn;

var bruteForce = function(path, pw, callback) {
    var error = false;

    // start import process
    var nodeProcess = spawn(nodeBinary, ['wallet', 'import', path]);

    nodeProcess.once('error',function(){
        error = true;
        callback('Couldn\'t start the "geth wallet import <file.json>" process.');
    });
    nodeProcess.stdout.on('data', function(data) {
        var data = data.toString();

        if(data.indexOf('Decryption failed:') !== -1 || data.indexOf('not equal to expected addr') !== -1) {
            callback(data);

        // if imported, return the address
        } else if(data.indexOf('Address:') !== -1) {
            var find = data.match(/\{([a-f0-9]+)\}/i);
            if(find.length && find[1])
                callback(null, '0x'+ find[1]);
            else
                callback(data);
        
        // if not stop, so we don't kill the process
        } else {
            return;
        }

        nodeProcess.stdout.removeAllListeners('data');
        nodeProcess.removeAllListeners('error');
        nodeProcess.kill('SIGINT');
    });

    // file password
    setTimeout(function(){
        if(!error && nodeProcess.stdin.writable) {
            nodeProcess.stdin.write(pw +"\n");
            pw = null;
        }
    }, 500);
};

count = 0;
var id = setInterval(function(){
    var pw = passwords[count++];

    console.log('Password:', pw);
    bruteForce(path, pw, function(e, result){
        if(e) {
            console.log('ERROR:', e);
        } else {
            console.log('FOUND!:', result, ' Password: "'+ pw +'"');
            clearInterval(id);
        }
    });

    if(count === passwords.length)
        clearInterval(id);
}, 1000);

// ----------------------------------------------------------------------------------

var nodeBinary = 'geth';
var path = './ethereum-wallet-xxxxxxxxxxxxxxxxxxxxxx.json';
var passwords = [
'AddPasswords',
'Here',
'WhichYouThinkMightBeIt'
];


// add lower and uppercase versions
passwords.forEach(function(pw){
    passwords.push(pw.toLowerCase());
    passwords.push(pw.toUpperCase());
});

Change the last variables:

var path = './ethereum-wallet-xxxxxxxxxxxxxxxxxxxxxx.json';
var passwords = [
'AddPasswords',
'Here',
'WhichYouThinkMightBeIt'
];

And run using node bruteforce-presale.js.

NOTE, you need to have geth installed