diff --git a/ptrstream.py b/ptrstream.py
@@ -14,15 +14,18 @@ try:
except ImportError:
raise ImportError('missing required \'aiodns\' library (pip install aiodns)')
+# Do not store these in the results file
+bad_hosts = ['localhost','undefined.hostname.localhost','unknown']
+
# Colors
class colors:
ip = '\033[35m'
ip_match = '\033[96m' # IP address mfound within PTR record
ptr = '\033[93m'
- spooky = '\033[31m' # .gov or .mil indicator
+ red = '\033[31m' # .gov or .mil indicator
invalid = '\033[90m'
reset = '\033[0m'
- separator = '\033[90m'
+ grey = '\033[90m'
def get_dns_servers() -> list:
@@ -43,9 +46,19 @@ async def rdns(semaphore: asyncio.Semaphore, ip_address: str, resolver: aiodns.D
reverse_name = ipaddress.ip_address(ip_address).reverse_pointer
try:
answer = await resolver.query(reverse_name, 'PTR')
- return ip_address, answer.name
- except:
- return ip_address, None
+ if answer.name not in bad_hosts and answer.name != ip_address and answer.name != reverse_name:
+ return ip_address, answer.name, True
+ else:
+ return ip_address, answer.name, False
+ except aiodns.error.DNSError as e:
+ if e.args[0] == aiodns.error.ARES_ENOTFOUND:
+ return ip_address, f'{colors.red}No rDNS found{colors.reset}', False
+ elif e.args[0] == aiodns.error.ARES_ETIMEOUT:
+ return ip_address, f'{colors.red}DNS query timed out{colors.reset}', False
+ else:
+ return ip_address, f'{colors.red}DNS error{colors.grey} ({e.args[1]}){colors.reset}', False
+ except Exception as e:
+ return ip_address, f'{colors.red}Unknown error{colors.grey} ({str(e)}){colors.reset}', False
def rig(seed: int) -> str:
@@ -61,6 +74,7 @@ def rig(seed: int) -> str:
ip = ipaddress.ip_address(shuffled_index)
yield str(ip)
+
def fancy_print(ip: str, result: str):
'''
Print the IP address and PTR record in a fancy way.
@@ -68,8 +82,8 @@ def fancy_print(ip: str, result: str):
:param ip: The IP address.
:param result: The PTR record.
'''
- if result in ('127.0.0.1', 'localhost'):
- print(f'{colors.ip}{ip.ljust(15)}{colors.reset} {colors.separator}-> {result}{colors.reset}')
+ if result in ('127.0.0.1', 'localhost','undefined.hostname.localhost','unknown'):
+ print(f'{colors.ip}{ip.ljust(15)}{colors.reset} {colors.grey}-> {result}{colors.reset}')
else:
if ip in result:
result = result.replace(ip, f'{colors.ip_match}{ip}{colors.ptr}')
@@ -77,13 +91,9 @@ def fancy_print(ip: str, result: str):
result = result.replace(daship, f'{colors.ip_match}{daship}{colors.ptr}')
elif (revip := '.'.join(ip.split('.')[::-1])) in result:
result = result.replace(revip, f'{colors.ip_match}{revip}{colors.ptr}')
- elif result.endswith('.gov') or result.endswith('.mil'):
- result = result.replace('.gov', f'{colors.spooky}.gov{colors.reset}')
- result = result.replace('.mil', f'{colors.spooky}.mil{colors.reset}')
- elif '.gov.' in result or '.mil.' in result:
- result = result.replace('.gov.', f'{colors.spooky}.gov.{colors.ptr}')
- result = result.replace('.mil.', f'{colors.spooky}.mil.{colors.ptr}')
- print(f'{colors.ip}{ip.ljust(15)}{colors.reset} {colors.separator}->{colors.reset} {colors.ptr}{result}{colors.reset}')
+ elif (revip := '.'.join(ip.split('.')[::-1]).replace('.','-')) in result:
+ result = result.replace(revip, f'{colors.ip_match}{revip}{colors.ptr}')
+ print(f'{colors.ip}{ip.ljust(15)}{colors.reset} {colors.grey}->{colors.reset} {colors.ptr}{result}{colors.reset}')
async def main(args: argparse.Namespace):
@@ -108,7 +118,7 @@ async def main(args: argparse.Namespace):
tasks = []
results_cache = []
- seed = random.randint(10**9, 10**10 - 1)
+ seed = random.randint(10**9, 10**10 - 1) if not args.seed else args.seed
ip_generator = rig(seed)
for ip in ip_generator:
@@ -119,10 +129,11 @@ async def main(args: argparse.Namespace):
done, pending = await asyncio.wait(tasks, return_when=asyncio.FIRST_COMPLETED)
tasks = list(pending)
for task in done:
- ip, result = task.result()
+ ip, result, success = task.result()
if result:
fancy_print(ip, result)
- results_cache.append(f'{ip}:{result}')
+ if success:
+ results_cache.append(f'{ip}:{result}')
if len(results_cache) >= 1000:
stamp = time.strftime('%Y%m%d')
with open(f'ptr_{stamp}_{seed}.txt', 'a') as file:
@@ -133,10 +144,11 @@ async def main(args: argparse.Namespace):
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='Perform asynchronous reverse DNS lookups.')
- parser.add_argument('-c', '--concurrency', type=int, default=50, help='Control the speed of lookups.')
+ parser.add_argument('-c', '--concurrency', type=int, default=100, help='Control the speed of lookups.')
parser.add_argument('-t', '--timeout', type=int, default=5, help='Timeout for DNS lookups.')
parser.add_argument('-r', '--resolvers', type=str, help='File containing DNS servers to use for lookups.')
parser.add_argument('-rt', '--retries', type=int, default=3, help='Number of times to retry a DNS lookup.')
+ parser.add_argument('-s', '--seed', type=int, help='Seed to use for random number generator.')
args = parser.parse_args()
asyncio.run(main(args))
|
