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<?php
declare(strict_types=1);
ini_set('memory_limit', '512M');
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<link rel="icon" href="favicon.ico">
<title>Batch File Obfuscator</title>
<style type="text/css">
:root {
--bg-primary: #0d1117;
--bg-secondary: #161b22;
--bg-tertiary: #21262d;
--bg-quaternary: #30363d;
--border-primary: #30363d;
--border-secondary: #21262d;
--text-primary: #f0f6fc;
--text-secondary: #8b949e;
--text-tertiary: #6e7681;
--accent-primary: #238636;
--accent-secondary: #2ea043;
--accent-danger: #da3633;
--accent-warning: #fb8500;
--accent-info: #0969da;
--shadow-primary: rgba(0, 0, 0, 0.3);
--shadow-secondary: rgba(0, 0, 0, 0.15);
--gradient-primary: linear-gradient(135deg, #238636 0%, #2ea043 100%);
--gradient-secondary: linear-gradient(135deg, #0969da 0%, #1f6feb 100%);
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
outline: none;
}
html, body {
font-family: Arial, Helvetica, sans-serif;
background: var(--bg-primary);
color: var(--text-primary);
min-height: 100vh;
line-height: 1.6;
}
body {
background-image:
radial-gradient(circle at 20% 50%, rgba(35, 134, 54, 0.1) 0%, transparent 50%),
radial-gradient(circle at 80% 20%, rgba(9, 105, 218, 0.1) 0%, transparent 50%),
radial-gradient(circle at 40% 80%, rgba(251, 133, 0, 0.05) 0%, transparent 50%);
background-attachment: fixed;
}
.container {
max-width: 800px;
margin: 0 auto;
padding: 2rem;
min-height: 75vh;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
}
.header {
text-align: center;
margin-bottom: 1rem;
}
.version {
position: fixed;
top: 1rem;
right: 1rem;
background: var(--bg-tertiary);
color: var(--text-secondary);
padding: 0.5rem 1rem;
border-radius: 8px;
font-family: 'Consolas', 'Monaco', monospace;
font-size: 0.875rem;
border: 1px solid var(--border-primary);
box-shadow: 0 2px 8px var(--shadow-secondary);
}
h1 {
font-size: 2.5rem;
font-weight: 700;
margin-bottom: 0.5rem;
background: var(--text-primary);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
}
.subtitle {
color: var(--text-secondary);
font-size: 1.125rem;
margin-bottom: 1rem;
max-width: 600px;
}
.upload-form {
background: var(--bg-secondary);
border: 1px solid var(--border-primary);
border-radius: 16px;
padding: 2rem;
width: 100%;
max-width: 500px;
box-shadow: 0 8px 32px var(--shadow-primary);
backdrop-filter: blur(10px);
}
.form-group {
margin-bottom: 1.5rem;
}
.file-input-wrapper {
position: relative;
display: block;
width: 100%;
min-height: 120px;
border: 2px dashed var(--border-primary);
border-radius: 12px;
background: var(--bg-tertiary);
cursor: pointer;
transition: all 0.3s ease;
overflow: hidden;
}
.file-input-wrapper:hover {
border-color: var(--accent-primary);
background: var(--bg-quaternary);
box-shadow: 0 4px 16px var(--shadow-secondary);
}
.file-input-wrapper.dragover {
border-color: var(--accent-primary);
background: var(--bg-quaternary);
box-shadow: 0 0 0 4px rgba(35, 134, 54, 0.1);
}
.file-input {
position: absolute;
width: 100%;
height: 100%;
opacity: 0;
cursor: pointer;
}
.file-input-content {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
height: 100%;
padding: 1rem;
text-align: center;
}
.file-icon {
font-size: 2.5rem;
margin-bottom: 0.5rem;
opacity: 0.7;
display: flex;
justify-content: center;
align-items: center;
pointer-events: none;
}
.file-icon img {
width: 2.5rem;
height: 2.5rem;
object-fit: contain;
filter: invert(1);
pointer-events: none;
}
.file-text {
color: var(--text-secondary);
font-size: 0.875rem;
}
.file-text strong {
color: var(--text-primary);
}
.input-field {
width: 100%;
padding: 0.875rem 1rem;
background: var(--bg-tertiary);
border: 1px solid var(--border-primary);
border-radius: 8px;
color: var(--text-primary);
font-size: 1rem;
transition: all 0.3s ease;
}
.input-field:focus {
border-color: var(--accent-primary);
box-shadow: 0 0 0 3px rgba(35, 134, 54, 0.1);
background: var(--bg-quaternary);
}
.input-field::placeholder {
color: var(--text-tertiary);
}
label {
display: block;
margin-bottom: 0.5rem;
color: var(--text-primary);
font-weight: 500;
font-size: 0.875rem;
}
.submit-btn {
width: 100%;
padding: 1rem 2rem;
background: var(--gradient-primary);
color: white;
border: none;
border-radius: 10px;
font-size: 1.125rem;
font-weight: 600;
cursor: pointer;
transition: all 0.3s ease;
position: relative;
overflow: hidden;
}
.submit-btn:hover {
box-shadow: 0 8px 25px rgba(35, 134, 54, 0.3);
}
.submit-btn:disabled {
opacity: 0.6;
cursor: not-allowed;
transform: none;
}
.result-container {
margin-top: 2rem;
text-align: center;
}
.download-btn {
display: inline-flex;
align-items: center;
gap: 0.5rem;
padding: 1rem 2rem;
background: var(--gradient-secondary);
color: white;
text-decoration: none;
border-radius: 10px;
font-weight: 600;
transition: all 0.3s ease;
}
.download-btn:hover {
box-shadow: 0 8px 25px rgba(9, 105, 218, 0.3);
text-decoration: none;
color: white;
}
.error-message {
background: var(--bg-tertiary);
border: 1px solid var(--accent-danger);
border-radius: 10px;
padding: 1rem;
color: var(--accent-danger);
text-align: center;
margin-top: 1rem;
}
@media (max-width: 768px) {
.container {
padding: 1rem;
}
h1 {
font-size: 2rem;
}
.upload-form {
padding: 1.5rem;
}
.version {
position: static;
margin-bottom: 2rem;
width: fit-content;
}
}
.loading {
display: inline-block;
width: 20px;
height: 20px;
border: 2px solid rgba(255, 255, 255, 0.3);
border-radius: 50%;
border-top-color: white;
animation: spin 1s ease-in-out infinite;
}
@keyframes spin {
to { transform: rotate(360deg); }
}
/* File selected state */
.file-selected {
border-color: var(--accent-primary);
background: var(--bg-quaternary);
}
.file-selected .file-icon {
color: var(--accent-primary);
}
.file-selected .file-text {
color: var(--text-primary);
}
</style>
</head>
<body>
<div class="container">
<span class="version">v2.0 clean</span>
<div class="header">
<h1>Batch Obfuscator</h1>
<p class="subtitle">Easy way to obfuscate Windows batch files</p>
</div>
<form class="upload-form" enctype="multipart/form-data" action="" method="POST">
<div class="form-group">
<label for="file">Select batch file</label>
<div class="file-input-wrapper" id="fileWrapper">
<input type="file" name="batchfile" class="file-input" id="file" accept=".bat" required>
<div class="file-input-content">
<div class="file-icon"><img src="batch_ico.png" alt="Batch file icon"></div>
<div class="file-text">
<strong>Click to browse</strong> or drag and drop<br>
<small>Only .bat files (max: 1MB)</small>
</div>
</div>
</div>
</div>
<div class="form-group">
<label for="passage">Obfuscation passes</label>
<input type="number"
min="1"
max="20"
name="passage"
class="input-field"
id="passage"
placeholder="Number of passes (Default: 1, Max: 20)"
value="1">
</div>
<button type="submit" class="submit-btn" id="submitBtn">
<span class="btn-text">Obfuscate file</span>
</button>
</form>
<?php if (isset($_FILES['batchfile'])): ?>
<div class="result-container">
<?php if (is_batch_file_valid($_FILES['batchfile'])): ?>
<?php
$passage = (isset($_POST['passage']) && $_POST['passage'] > 0 && $_POST['passage'] <= 20)
? (int)$_POST['passage']
: 1;
sleep(1);
ensure_data_directory();
/* clean files older than 24 hours */
clean_old_files('data', 86400);
try {
$obfuscated_content = batchfile_obfuscate($_FILES['batchfile']['tmp_name'], $passage);
file_put_contents('data/'.$_FILES['batchfile']['name'], $obfuscated_content);
} catch (RuntimeException $e) {
echo '<div class="error-message"><strong>Error:</strong> '.htmlspecialchars($e->getMessage()).'</div>';
exit;
}
?>
<a class="download-btn" href="./data/<?php echo htmlspecialchars($_FILES['batchfile']['name']); ?>">
Download <strong><?php echo htmlspecialchars($_FILES['batchfile']['name']); ?></strong> (<?php echo $passage; ?>x pass)
</a>
<?php else: ?>
<div class="error-message"><strong>Error:</strong> No file selected, file exceeds 1MB, or file is not a valid .bat file</div>
<?php endif; ?>
</div>
<?php endif; ?>
</div>
<script>
const fileInput = document.getElementById('file');
const fileWrapper = document.getElementById('fileWrapper');
const submitBtn = document.getElementById('submitBtn');
const btnText = submitBtn.querySelector('.btn-text');
fileInput.addEventListener('change', function(e) {
const file = e.target.files[0];
if (file) {
fileWrapper.classList.add('file-selected');
const content = fileWrapper.querySelector('.file-input-content');
content.innerHTML = `
<div class="file-icon"><img src="batch_ico.png" alt="Batch file icon"></div>
<div class="file-text">
<strong>${file.name}</strong><br>
<small>${(file.size / 1024).toFixed(1)} KB</small>
</div>
`;
}
});
fileWrapper.addEventListener('dragover', function(e) {
e.preventDefault();
fileWrapper.classList.add('dragover');
});
fileWrapper.addEventListener('dragleave', function(e) {
e.preventDefault();
fileWrapper.classList.remove('dragover');
});
fileWrapper.addEventListener('drop', function(e) {
e.preventDefault();
fileWrapper.classList.remove('dragover');
const files = e.dataTransfer.files;
if (files.length > 0) {
fileInput.files = files;
fileInput.dispatchEvent(new Event('change'));
}
});
document.querySelector('.upload-form').addEventListener('submit', function() {
submitBtn.disabled = true;
btnText.innerHTML = '<span class="loading"></span> Processing...';
});
</script>
</body>
</html>
<?php
function batchfile_obfuscate(string $batchfile, int $pass = 1): string {
$script = file_get_contents($batchfile);
if ($script === false) throw new RuntimeException("Failed to read batch file: {$batchfile}");
$batchfile_obfuscate = '';
for ($i = 0; $i < $pass; $i++) {
/* for subsequent passes, use what has already been obfuscated */
if ($i > 0) $script = $batchfile_obfuscate;
/* clear all previous work for this pass */
$batchfile_obfuscate = '';
$stringVar0 = '@ 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$stringVar1 = '_ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûüabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$stringVar8 = 'abcdefghijklmnopqrstuvwxyz';
$stringVar2 = '_¯-ஐ→あⓛⓞⓥⓔ｡°º¤εïз╬㊗⑪⑫⑬㊀㊁㊂のðabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
/* variable value for this pass */
$stringGen1 = substr(str_shuffle($stringVar1), 0, rand(3, 5));
$stringGen2 = '';
$arrayTable = [];
$arrayVar0 = str_split($stringVar0);
shuffle($arrayVar0);
foreach ($arrayVar0 as $pos => $char) {
$arrayTable[] = [$char, '%'.$stringGen1.':~'.$pos.',1%'];
$stringGen2 .= $char;
}
$arrayText = str_split($script);
$convertWaitVar = false;
$convertWaitLabel = false;
/* track whether we're in % or ! variable */
$varType = '';
/* consider the first line as a line break in case there's a label on the first line */
$sautLigne = true;
if ($i === $pass - 1) $batchfile_obfuscate .= "\xFF\xFE".'&@cls&';
$batchfile_obfuscate .= '@set "'.$stringGen1.'='.$stringGen2.'"'.PHP_EOL;
foreach ($arrayText as &$charOriginal) {
if ($sautLigne === true && $charOriginal === ':') {
/* if we detect a label */
$convertWaitLabel = true;
}
if ($charOriginal === "\n") {
/* remember that we're breaking a line for tests on the next line */
$sautLigne = true;
/* reset to false since we can't be in a variable if we break a line */
$convertWaitVar = false;
/* reset label to false since we're moving to the next line */
$convertWaitLabel = false;
$varType = '';
} else {
$sautLigne = false;
}
if ($charOriginal === ' ') {
/* to resume after a : in a string since a label cannot contain spaces */
$convertWaitLabel = false;
}
/* improved variable detection for consecutive variables like %0%random% */
if ($convertWaitVar === false && ($charOriginal === '%' || $charOriginal === '!')) {
/* if we encounter the first % or ! of a variable to avoid corruption */
$convertWaitVar = true;
/* remember which type of variable delimiter we're using */
$varType = $charOriginal;
} elseif ($convertWaitVar === true && $charOriginal === $varType) {
/* if we encounter the matching end delimiter, close this variable */
$convertWaitVar = false;
/* for cases like [%time:~0,-3%] to resume after the variable */
$convertWaitLabel = false;
$varType = '';
/* immediately check if this might be the start of another variable */
/* this handles cases like %0%random% where % serves dual purpose */
if ($charOriginal === '%' || $charOriginal === '!') {
$convertWaitVar = true;
$varType = $charOriginal;
}
}
if ($convertWaitVar === false && $convertWaitLabel === false && $sautLigne === false) {
/* if we're not in a variable or label, then replace */
$convert = false;
foreach ($arrayTable as [$char1, $char2]) {
if ($charOriginal === $char1) {
if (rand(1, 20) === 8) {
/* replace if found in table + add empty variable (1 in 20 times) */
$batchfile_obfuscate .= $char2.'%'.substr(str_shuffle($stringVar1), 3, 7).'%';
} else {
$batchfile_obfuscate .= $char2;
}
$convert = true;
}
}
if ($convert === false) {
/* if not found in table, don't replace */
$batchfile_obfuscate .= $charOriginal;
}
} else {
/* we are in a variable or label so don't replace anything */
$batchfile_obfuscate .= $charOriginal;
}
}
}
return html_entity_decode($batchfile_obfuscate);
}
function is_batch_file_valid(array $file): bool {
return $file['error'] === 0
&& $file['size'] <= 1000000
&& strtolower(substr($file['name'], -4)) === '.bat';
}
function clean_old_files(string $directory, int $maxAge = 86400): void {
if (!is_dir($directory)) return;
foreach (glob($directory.'/*') as $file) {
if (is_file($file) && filemtime($file) < time() - $maxAge) {
unlink($file);
}
}
}
function ensure_data_directory(): void {
if (!is_dir('data')) {
mkdir('data', 0755, true);
}
}
?>