def scan_ssh(ip): try: ssh = paramiko.SSHClient() ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) ssh.connect(hostname=ip, port=22, timeout=1) ssh.close() return ip except paramiko.AuthenticationException: pass except paramiko.SSHException: pass except Exception as e: print(f"Error connecting to {ip}: {e}") return None
: Before running this script, ensure you have permission to scan the target network and SSH servers. Unauthorized scanning can be considered malicious. Prerequisites First, you'll need to install the paramiko library. You can do this via pip:
with concurrent.futures.ThreadPoolExecutor(max_workers=args.threads) as executor: futures = {executor.submit(scan_ssh, str(ip)): ip for ip in network if is_ssh_open(str(ip))} for future in concurrent.futures.as_completed(futures): ip = futures[future] try: result = future.result() if result: open_ssh_hosts.append(result) print(f"Open SSH: {result}") except Exception as exc: print(f"{ip} generated an exception: {exc}") lazy ssh scanner download
pip install paramiko import argparse import ipaddress import paramiko import concurrent.futures import socket
def is_ssh_open(host, port=22, timeout=1): try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(timeout) result = sock.connect_ex((host, port)) sock.close() if result == 0: return True else: return False except Exception as e: print(f"Error checking {host}: {e}") return False def scan_ssh(ip): try: ssh = paramiko
print("\nSummary:") print(f"Found {len(open_ssh_hosts)} SSH servers:") for host in open_ssh_hosts: print(host)
: Scanning networks for open ports and services should be done responsibly and in compliance with applicable laws and regulations. Ensure you have the necessary permissions before scanning any network. You can do this via pip: with concurrent
open_ssh_hosts = []
def main(): parser = argparse.ArgumentParser(description='Lazy SSH Scanner') parser.add_argument('-r', '--range', required=True, help='IP range to scan (e.g., 192.168.1.0/24)') parser.add_argument('-t', '--threads', type=int, default=20, help='Number of threads') args = parser.parse_args()
try: network = ipaddress.ip_network(args.range, strict=False) except ValueError: print("Invalid IP range") return