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The Bug Bounty Reconnaissance Framework (BBRF) can help you coordinate your reconnaissance workflows across multiple devices

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The Bug Bounty Reconnaissance Framework (BBRF) can be used to coordinate your reconnaissance workflows across multiple devices. For more background, read the original blog post.

If you are new to BBRF, you will need to deploy a BBRF server before you can make use of the client.

Get started

# install the client
pip install bbrf

create the .bbrf folder

mkdir -p ~/.bbrf

ensure you have the required configuration in ~/.bbrf/config.json

cat > ~/.bbrf/config.json << EOF { "username": "bbrf", "password": "", "couchdb": "https:///bbrf", "slack_token": "", "discord_webhook": "", "ignore_ssl_errors": false } EOF

other optional settings are {"debug":true, "slack_channel": "channel-name", "slack_webhook":"https://..."}

create a new program

bbrf new test

or continue with a program you have created before

bbrf use test

define a scope for your program

bbrf inscope add '' '' '' bbrf outscope add '' '*'

view the program in/out scope

bbrf scope in bbrf scope out

start a background listener to listen for changes and send alerts to Slack

in production, you probably want this continuously running on a VPS somewhere

bbrf listen &

add some domains manually

bbrf domain add thisisnotadomain.example

note that bbrf automatically safeguards the data quality, e.g.

it checks the program's in and out scope to see if entries

should be processed or not, prevents duplicate entries in the database,

and rejects all input that is not a valid domain

bbrf domains

add a list of ips from a file by piping into bbrf

cat ips.txt | bbrf ip add -

run a tool based on the program scope, store results in bbrf,

and display a list of domains that have been added

bbrf scope in --wildcard --top | subfinder | bbrf domain add - --show-new

retrieve a raw document from the bbrf server and format with jq

bbrf show | jq

update the outscope

bbrf outscope add

note that this does not automatically remove outscoped domains that

were already in the database, so you will manually need to fix that!

bbrf domains | bbrf scope filter out | bbrf domain remove -

discover all features of bbrf on the help page

bbrf -h

Use dnsx to resolve unresolved domains across all your programs

and store the results in bbrf, either by updating existing ips and domains,

or by adding them if they are new

for p in $(bbrf programs); do bbrf domains --view unresolved -p $p |
dnsx -silent -a -resp | tr -d '[]' | tee
>(awk '{print $1":"$2}' | bbrf domain update - -p $p -s dnsx)
>(awk '{print $1":"$2}' | bbrf domain add - -p $p -s dnsx)
>(awk '{print $2":"$1}' | bbrf ip add - -p $p -s dnsx)
>(awk '{print $2":"$1}' | bbrf ip update - -p $p -s dnsx) done

view all resolved domains

bbrf domains --view resolved

Python module

To use BBRF in your Python projects, use the interface as follows:

from bbrf import BBRFClient as bbrf

this will use the system's default ~/.bbrf/config.json file:

programs = bbrf('programs').run()

to specify a custom configuration, provide a second argument:

conf = { "username": "bbrf", "password": "", "couchdb": "https:///bbrf", "slack_token": "", "discord_webhook": "", "ignore_ssl_errors": false }

domains = bbrf('domains --view resolved', conf).run()


If you like browsing through your recon data with a GUI, you can make use of the BBRF dashboard on Just plug in your server URL, username and password, and the dashboard will pull your data and make it searchable. Note that all communication to the server happens via your browser, so your data remains safe!




BBRF will accept and store domains in any of the following input formats:


Note that adding the DNS resolutions of a domain in this way does not automatically store the IP in the IPs table, but that domains and ips are logically seperated in the client, which requires you to write your scripts so that they handle this distinction appropriately.

bbrf domain add
bbrf domain update,
bbrf show | jq


Similarly, you can store hostnames of an IP address by appending one or more domains with a colon:


Again, BBRF will make sure the provided hostnames are valid domain names before storing them, but will not add them to your list of domains for the program, nor does it validate these domains against the defined program scope. Instead, these domains are stored in a

property on the IP document:
bbrf ip add,
bbrf ip update,
bbrf show | jq


BBRF will help you manage your URLs, and store their hostname, port, status code and content length for you:

bbrf url add '' '' ' 200 1234'

Two formats are accepted:

delimited by spaces.


 can be absolute or relative. A relative URL will require the 
flag to be specified or will be skipped. Whenever the
flag is set, it will compare that with the hostname parsed from the URL, and skip the URL if they do not match.

Relative URLs and URLs that do not specify a scheme (

) will always be interpreted with scheme
. If no port is found, ports 80 and 443 will be used as a default depending on the scheme.

The flag

will print a list of new and updated URLs if they were added, or if their status code and/or content length were updated respectively:
cat urls.txt | bbrf url add - --show-new

To view a list of stored URLs of your active program, simply use:

bbrf urls

Or, to return URLs belonging to a specific host:

bbrf urls -d

To list URLs across all programs, run:

bbrf urls --all

To print full URLs with the saved query strings:

bbrf urls --all --with-query


To store services (i.e. open ports) in BBRF, provide the input formatted as

, and manually specify other properties by means of the tagging system (see below for more info about tags), e.g.:
bbrf service add -t hostname:localhost -t protocol:tcp
bbrf service add -t hostname:localhost -t protocol:tcp
bbrf service add -t scanned:$(date +%s)

Note that services can only be stored for an IP address, and not as

for example. This avoids the complexity of mapping domains to IPs (especially when an IP address maps to more than one domain), while still allowing search operations supported by a mix of default properties and tags:
# get all known services on port 8443
bbrf services where port is 8443
# return services for which a tag has been manually provided
bbrf services where hostname is localhost

Tagging and querying

By setting custom properties for the different document types (programs, domains, ips, urls and services), you can specify e.g. the platform a program belongs to or the name of a team member that added a bunch of new domains.

To add tags to documents, specify a

-t key:value
when creating a new domain, ip, url or service, or leave empty to remove the tag:
# add a custom tag to all domains
cat domains.txt | bbrf domain add - -t added_by:pieter -t from:domains.txt
# create an IP with a custom tag
bbrf ip add -t added_by:pieter
# remove the tag
bbrf ip update -t added_by:

Note that you can specify the same tag multiple times to store the tags as arrays. BBRF will follow the following rules to determine how to store tags: * if a single

-t tag:value
is found, treat as a normal value; * if the same tag name is provided more than once, default to an array:
-t cname:one -t cname:two
* by default, overwrite existing values for the tags when updating, unless
is specified, in which case append new values to existing values:
bbrf domain update www.example.tld -t name:value
bbrf show www.example.tld | jq .tags # { "name": "value" }
bbrf domain update www.example.tld -t name:value2 -t name:value3
bbrf show www.example.tld | jq .tags # { "name": ["value2", "value3"] }
bbrf domain update www.example.tld -t name:value4 --append-tags
bbrf show www.example.tld | jq .tags # { "name": ["value2", "value3", "value4"] }
bbrf domain update www.example.tld -t name:
bbrf show www.example.tld | jq .tags # { }

To facilitate basic data querying, the BBRF server provides an indexed search based on all custom tags, as well as some default properties of all document types:

# search domains based on custom tags:
bbrf domains where added_by is pieter --all
bbrf domains where last_updated is before 1610698911
bbrf domains where last_scan is after 2021-01-01 -p myprogram

or search the properties that are available by design:

bbrf domains where ip is bbrf ips where domain is bbrf urls where port is 443 bbrf services where port is 22

This works on domains, ips, urls and services and will search based on text-based comparisons as is defined in the Unicode Collation Algorithm as implemented by Couchdb.

Since all values are stored as text, this allows date comparison if you store dates as unix timestamps or in a ISO-8601 format e.g.


That also means, however, that for example

comes after
, which makes this less suitable for integer comparison. So if you want to store integers, you may want to use padded zeros at the front to ensure that
comes before

Dynamic program inference

Use the dynamic program name

to infer the program name based on other properties if you're unable to specify the program flag yourself for some reason; this is currently supported for the following operations:
  • bbrf ip add -p @INFER
    will set the IP's program name to the same as the domain example.tld if it already exists;
  • bbrf domain add some.example.tld: -p @INFER
    will set the domain's program name to the same as if it already exists - note that this will bypass the scope validation of the program, because the program name is inferred just before writing to the database.
  • bbrf domain add some.example.tld some.other.tld -p @INFER
    will add the domains to whatever program scope matches the input;
  • bbrf url add http://this.example.tld https://that.some.tld/robots.txt -p @INFER
    will add the URLs to whatever program has the domain in scope;

BBRF Listener

In order to process changes and alerts as they are pushed to the data store, you need to have an active listener running somewhere:

bbrf listen

This will start listening for changes on the BBRF server and push notifications to your configured Slack instance. Note that this will fail e.g. when the BBRF server is temporarily unavailable or in case of certificate errors, so you may want to loop this to auto-start in case of issues.

Custom execution hooks

The BBRF listener will also execute custom local scripts when it sees new or updated ips, domains, urls and/or services. It will automatically look for executable

files in the following locations:
  • ~/.bbrf/hooks/ip/new/
  • ~/.bbrf/hooks/ip/update/
  • ~/.bbrf/hooks/domain/new/
  • ~/.bbrf/hooks/domain/update/
  • ~/.bbrf/hooks/url/new/
  • ~/.bbrf/hooks/url/update/
  • ~/.bbrf/hooks/service/new/
  • ~/.bbrf/hooks/service/update/

For example, here is a custom execution hook that will resolve newly added domains and store the results back in BBRF. Find more examples in



BBRF hook - save to ~/.bbrf/hooks/domain/new/

and make sure it is executable: chmod +x

[email protected]

printf '%s\n' ${domains[@]} | dnsx -silent -a -resp | tr -d '[]' | tee
>(awk '{print $1":"$2}' | bbrf domain update -)
>(awk '{print $2":"$1}' | bbrf ip add - -p @INFER)
>(awk '{print $2":"$1}' | bbrf ip update -);

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