BloodHound
BloodHound is a tool to graphically map Active Directory and discover attack paths.
Last updated
BloodHound is a tool to graphically map Active Directory and discover attack paths.
Last updated
One of the glorious design features of AD is that everyone in the domain needs to know where everything is. So when you get user credentials and/or a shell, you can basically map the entire domain without breaking any rules. Any user can query Active Directory for computers, domain controllers, groups and sessions.
Now we can use this brilliant feature to collect a ton of information and create a cool GUI map of the entire AD which can be queried using BloodHound. There are two software requirements, you need BloodHound and a database to store the data in. The recommended choice is neo4j, see below for further instructions.
Install neo4j Community Edition manually from their website , not through apt.
Run neo4j with /opt/neo4j-community-3.3.0/bin/neo4j start
Navigate to localhost:7474 in your browser
Log in with username and password neo4j
Set a new password for the neo4j account
Open the file neo4j.conf from the neo4j installation directory and set the following parameters to make any host be able to access the database.
Restart neo4j with /opt/neo4j-community-3.1.1/bin/neo4j restart
Access neo4j in the browser at http://0.0.0.0:7474/browser/
Neo4j can be started with powershell on windows.
Spawn an administrative powershell with -bypass exec
Navigate to the neo4j/bin directory
Import-Module .\Neo4j-Management.psd1
Invoke-Neo4j Console
Likewise to Linux, log in to localhost:7474 from your browser and change the password.
Similar procedure as linux. Neo4j does not support Java 9, so Java SDK must be version 8 and not 9. Install java 8 with cask in Homebrew:
brew update
brew cask install java8
Install BloodHound according to instructions on the Github page
Launch BloodHound and log in to the neo4j database with credentials previously set
To collect data in a format Bloodhound can read is called ingestion. There are several ways of doing this and different types of collection methods. The most useable is the C# ingestor called SharpHound and a Powershell ingestor called Invoke-BloodHound. Both are bundled with the latest release.
From Bloodhound version 1.5: the container update, you can use the new "All" collection open. See the blogpost from Specter Ops for details.
Bloodhound is now in version 2.0, so make sure to grab the latest version of the ingestor. For Windows you can use the SharpHound exe.
What I recommend doing if you have internal network access is to run Bloodhound using runas /netonly from your own machine and not from a host you are not in the control of. This way you're not cluttering a domain joined machine with files, you will not trigger antivirus and you don't have to exfiltrate the data either, so its generally less noisy.
runas /netonly /FQDN\user\<username> powershell
Example with the domain testlab.local and a username testuser
runas /netonly /testlab.local\user\testuser powershell
Type in the password of testuser when prompted. This should spawn a new Powershell window. This window will use the local DNS settings to find the nearest domain controller and perform the various LDAP queries Bloodhound performs. First, from a powershell shell with execution policy set to bypass, import the powershell module Import-module SharpHound.ps1
Then, start collecting data. This command specifies to collect all kinds of information, compress it into a ZIP and remove stray CSV files generated during ingestion.
Invoke-BloodHound -CollectionMethod All -CompressData -RemoveCSV
You will now have get a ZIP file containing CSV files in the directory where you ran the ingestor from. This ZIP file can from v2.0 be dragged and dropped straight into the BloodHound interface.
You should immediately see data being populated into the database and the interface.
You can now play with BloodHound to create really some really cool maps. You can also perform queries to show the shortest path to DA, etc. See the default queries and SpectreOps blog posts for inspiration.
If you have a Kali box on the local network you can use the Bloodhound.py ingestor.
Explanations of things found under Node info https://github.com/BloodHoundAD/BloodHound/wiki/Users https://posts.specterops.io/sharphound-target-selection-and-api-usage-bba517b9e69b https://github.com/porterhau5/BloodHound https://porterhau5.com/blog/representing-password-reuse-in-bloodhound/ https://porterhau5.com/blog/extending-bloodhound-track-and-visualize-your-compromise/ http://threat.tevora.com/lay-of-the-land-with-bloodhound/
