7MS #353: Tales of Internal Pentest Pwnage - Part 1

Today we’re talkin’ business – specifically how to make your report delivery meetings calm, cool and collect (both for you and the client!).

25 Okt 202422min

Hey friends, today I’m putting my blue hat on and dipping my toes in incident response by way of playing with Velociraptor, a very cool (and free!) tool to find evil in your environment.  Perhaps even better than the price tag, Velociraptor runs as a single binary you can deploy to spin up a server and then request endpoints to “phone home” to you by way of GPO scheduled task.  The things I talk about in this episode and show in the YouTube stream are all based off of this awesome presentation from Eric Capuano, who also was kind enough to publish a handout to accompany the presentation.  And on a personal note, I wanted to share that Velociraptor has got me interested in jumping face first into some tough APT labs provided by XINTRA.  More to come on XINTRA’s offering, but so far I’m very impressed!

18 Okt 202416min

Today I do a short travelogue about my trip to Washington, geek out about some cool training I did with Velociraptor, ponder drowning myself in blue team knowledge with XINTRA LABS, and share some thoughts about the conference talk I gave called 7 Ways to Panic a Pentester.

14 Okt 202431min

Hey!  I’m speaking in Wanatchee, Washington next week at the NCESD conference about 7 ways to panic a pentester!  Today’s tale of pentest pwnage is a great reminder to enumerate, enumerate, enumerate!  It also emphases that cracking NETLM/NETNTLMv1 isn’t super easy to remember the steps for (at least for me) but this crack.sh article makes it a bit easier!

4 Okt 202441min

Today we continue where we left off in episode 641, but this time talking about how to automatically deploy and install a Ubuntu-based dropbox!  I also share some love for exegol as an all-in-one Active Directory pentesting platform.

27 Sep 202426min

Ron Cole of Immersive Labs joins us to talk pentest war stories, essential skills he learned while serving on a SOC, and the various pentest training and range platforms you can use to sharpen your security skills! Here are the links Ron shared during our discussion: VetSec Fortinet Veterans Program Immersive Labs Cyber Million FedVTE

23 Sep 202442min

Today we’re revisiting the fun world of automating pentest dropboxes using Proxmox, Ansible, Cursor and Level.  Plus, a tease about how all this talk about automation is getting us excited for a long-term project: creating a free/community edition of Light Pentest LITE training!

13 Sep 202427min

This was my favorite pentest tale of pwnage to date!  There’s a lot to cover in this episode so I’m going to try and bullet out the TLDR version here: Sprinkled farmer files around the environment Found high-priv boxes with WebClient enabled Added “ghost” machine to the Active Directory (we’ll call it GHOSTY) RBCD attack to be able to impersonate a domain admin using the CIFS/SMB service against the victim system where some higher-priv users were sitting Use net.py to add myself to local admin on the victim host Find a vulnerable service to hijack and have run an evil, TGT-gathering Rubeus.exe – found that Credential Guard was cramping my style! Pulled the TGT from a host not protected with Credential Guard Figured out the stolen user’s account has some “write” privileges to a domain controller Use rbcd.py to delegate from GHOSTY and to the domain controller Request a TGT for GHOSTY Use getST.py to impersonate CIFS using a domain admin account on the domain controller (important thing here was to specify the DC by its FQDN, not just hostname) Final move: use the domain admin ccache file to leverage net.py and add myself to the Active Directory Administrators group

7 Sep 202443min