A Python 3.5+ tool that uses asyncio to brute force domain names asynchronously.
It's fast. Benchmarks on small VPS hosts put around 100k DNS resoultions at 1.5-2mins. An amazon M3 box was used to make 1 mil requests in just over 3 minutes. Your mileage may vary. It's probably best to avoid using Google's resolvers if you're purely interested in speed.
DISCLAIMER
- Your ISP's and home router's DNS servers probably suck. Stick to a VPS with fast resolvers (or set up your own) if you're after speed.
- WARNING This tool is capable of sending LARGE amounts of DNS traffic. I am not repsonsible if you DoS someone's DNS servers.
$ pip install aiodnsbrute
Note: using a virtualenv is highly recommended.
Alternately you can install the usual way:
$ git clone https://github.com/blark/aiodnsbrute.git
$ cd aiodnsbrute
$ python setup.py install .
Get help:
$ aiodnsbrute --help
Usage: cli.py [OPTIONS] DOMAIN
aiodnsbrute is a command line tool for brute forcing domain names
utilizing Python's asyncio module.
credit: blark (@markbaseggio)
Options:
-w, --wordlist TEXT Wordlist to use for brute force.
-t, --max-tasks INTEGER Maximum number of tasks to run asynchronosly.
-r, --resolver-file FILENAME A text file containing a list of DNS resolvers
to use, one per line, comments start with #.
Default: use system resolvers
-v, --verbosity Increase output verbosity
-o, --output [csv|json|off] Output results to DOMAIN.csv/json (extension
automatically appended when not using -f).
-f, --outfile FILENAME Output filename. Use '-f -' to send file
output to stdout overriding normal output.
--query / --gethostbyname DNS lookup type to use query (default) should
be faster, but won't return CNAME information.
--wildcard / --no-wildcard Wildcard detection, enabled by default
--verify / --no-verify Verify domain name is sane before beginning,
enabled by default
--version Show the version and exit.
--help Show this message and exit.
Run a brute force with some custom options:
$ aiodnsbrute -w wordlist.txt -vv -t 1024 domain.com
Run a brute force, supppess normal output and send only JSON to stdout:
$ aiodnbrute -f - -o json domain.com
...for an advanced pattern, use custom resovers and pipe output into the awesome jq:
$ aiodnsbrute -r resolvers.txt -f - -o json google.com | jq '.[] | select(.ip[] | startswith("172."))'
Wildcard detection enabled by default (--no-wildcard turns it off):
$ aiodnsbrute foo.com
[*] Brute forcing foo.com with a maximum of 512 concurrent tasks...
[*] Using recursive DNS with the following servers: ['50.116.53.5', '50.116.58.5', '50.116.61.5']
[!] Wildcard response detected, ignoring answers containing ['23.23.86.44']
[*] Wordlist loaded, proceeding with 1000 DNS requests
[+] www.foo.com 52.73.176.251, 52.4.225.20
100%|██████████████████████████████████████████████████████████████████████████████| 1000/1000 [00:05<00:00, 140.18records/s]
[*] Completed, 1 subdomains found
NEW use gethostbyname (detects CNAMEs which can be handy for potential subdomain takeover detection)
$ aiodnsbrute --gethostbyname domain.com
Supply a list of resolvers from file (ignoring blank lines and starting with #), specify -r - to read list from stdin.
$ aiodnsbrute -r resolvers.txt domain.com
- Wordlists are from bitquark's dnspop repo (except the 10 mil entry one which I created using his tool).
- Creds to Sublist3r for pointing me there.
- Click for making CLI apps so easy.
- tqdm powers the pretty progress bar!
- aiodns for providing the Python async interface to pycares which makes this all possible!
- You might want to do a
ulimit -nto see how many open files are allowed. You can also increase that number using the same command, i.e.ulimit -n <2048>
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