CrackMapExec VS BloodHound

Let’s walk through a typical attack against the Administrator account using a popular tool, CrackMapExec.

Attackers like to use crackmapexec to exploit Windows networks and machines. It can achieve various goals like enumerating users, cracking SMB shares, and injecting shellcode into memory.

After gaining a local administrator NTLM password hash using SMB relay attacks, Redbot Security used the “CrackMapExec” tool to pass the local administrator hash to all systems and found multiple systems using the same password:

ntlmrelayx2proxychains aims to connect the tool of the SecureAuthCorps' impacket suite, ntlmrelayx.py (hereafter referred to as "ntlmrelayx"), along with @byt3bl33d3r's tool, CrackMapExec (hereafter referred to as "CME"), over proxychains, developped by haad.

CrackMapExec - Swiss army knife for pentesting networks.

Regarding network shares, I personally tend to use crackmapexec with a list of systems. It won't list the ACLs but it is very good at finding out what a standard domain user could access (if this is what you are after) https://github.com/byt3bl33d3r/CrackMapExec

Tool Language Url Notes SharpHound .NET 4 executable https://github.com/BloodHoundAD/SharpHound/ Also possible to be executed in-memory using Cobalt Strike, check @william_knows’ blog post AzureHound PowerShell https://github.com/BloodHoundAD/AzureHound/ Specifically for Azure environments, outside of the scope of this article SharpHound.ps1 PowerShell https://github.com/BloodHoundAD/BloodHound/ Available from the Collectors folder. Using PowerShell reflectively loads the embedded SharpHound.exe .NET executable. It exposes the Invoke-BloodHound function which calls the main function of the SharpHound binary. SharpHound.py Python https://github.com/fox-it/BloodHound.py/ Python version of SharpHound ADExplorerSnapshot.py Python https://github.com/c3c/ADExplorerSnapshot.py/ Convert Sysinternals ADExplorer snapshots to BloodHound-compatible JSON files. BOFHound Python https://github.com/fortalice/bofhound/ Generate BloodHound compatible JSON from logs written by ldapsearch BOF and pyldapsearch.

Run Sharphound and bloodhound Bloodhound. It is excellent in determining relationships and privilege escalation paths that would allow the access.

BloodHound is a web application that identifies and visualizes attack paths in Active Directory environments. It identifies the fastest series of steps from any AD account or machine to a desired target, such as membership in the Domain Admins group. Regularly checking your AD using BloodHound can be an effective defense mechanism that helps you ensure that compromising an account or machine doesn’t enable an attacker to compromise your domain.

Bloodhound - AD attack path management/enumeration

I solved it by grabbing a new version of Sharphound.ps1 on the attack box, you can find it here: https://github.com/BloodHoundAD/BloodHound/tree/master/Collectors.

No live event would be complete without sessions. There were over 30 speakers who covered topics from starting a career in InfoSec, to in-depth sessions about using specific tools like BloodHound. Here are just a few high-level themes and highlights. All of these sessions, including mine, will be made available on the BSidesSLC YouTube channel soon.

If you're planning to use Active Directory and/or Azure AD, run ADRecon/AzureADRecon and Bloodhound frequently and review in depth. Run ScoutSuite frequently and review as part of a normal operational cycle (e.g., at weekly team meetings make the results available and set aside 15 minutes to discuss and make assignments). Look critically at where these three tools overlap within two or three degrees of separation from your jump hosts (e.g., hosts/nodes that are one or two devices away and users/security groups that are one or two devices away) for help prioritizing when you have too many high-risk/high-impact items to look through.