7MS #502: Building a Pentest Lab in Azure
7 Minute Security5 Tammi 2022

7MS #502: Building a Pentest Lab in Azure

Happy new year friends! Today I share the good, bad, ugly, and BROKEN things I've come across while migrating our Light Pentest LITE training lab from on-prem VMware ESXi to Azure. It has been a fun and frustrating process, but my hope is that some of the tips in today's episode will save you some time/headaches/money should you setup a pentesting training camp in the cloud.

Things I like

  • No longer relying on a single point of failure (Intel NUC, switch, ISP, etc.)

  • You can schedule VMs to auto-shutdown at a certain time each day, and even have Azure send you a notification before the shutdown so you can delay - or suspend altogether - the operation

Things I don't like

  • VMs are by default (I believe) joined to Azure AD, which I don't want. Here's how I got machines unjoined from Azure AD and then joined to my pwn.town domain:
dsregcmd /leave Add-Computer -DomainName pwn.town -Restart
  • Accidentally provision a VM in the wrong subnet? The fix may be rebuilding the flippin' VM (more info in today's episode).

  • Just about every operation takes for freakin' ever. And it's confusing because if you delete objects out of the portal, sometimes they don't actually disappear from the GUI for like 5-30 minutes.

  • Using backups and snapshots is archaic. You can take a snapshot in the GUI or PowerShell easy-peasy, but if you actually want to restore those snapshots you have to convert them to managed disks, then detach a VM's existing disk, and attach the freshly converted managed disks. This is a nightmare to do with PowerShell.

  • Deleting data is a headache. I understand Azure is probably trying to protect you against deleting stuff and not being able to get it back, but they night a right-click > "I know what I'm doing, DELETE THIS NOW" option. Otherwise you can end up in situations where in order to delete data, you have to disable soft delete, undelete deleted data, then re-delete it to actually make it go away. WTH, you say? This doc will help it make more sense (or not).

Things that are broken

  • Promiscuous mode - just plain does not work as far as I can tell. So I can't do protocol poisoning exercises with something like Inveigh.

  • Hashcat - I got CPU-based cracking working in ESXi by installing OpenCL drivers, but try as I may, I cannot get this working in Azure. I even submitted an issue to the hashcat forums but so far no replies.

On a personal note, it has been good knowing you because I'm about to spend all my money on a new hobby: indoor skydiving.

Jaksot(682)

7MS #619: Tales of Pentest Pwnage – Part 56

7MS #619: Tales of Pentest Pwnage – Part 56

We did something crazy today and recorded an episode that was 7 minutes long!  Today we talk about some things that have helped us out in recent pentests: When using Farmer to create “trap” files that coerce authentication, I’ve found way better results using Windows Search Connectors (.searchConnector-ms) files This matrix of “can I relay this to that” has been super helpful, especially early in engagements

14 Huhti 20247min

7MS #618: Writing Savage Pentest Reports with Sysreptor

7MS #618: Writing Savage Pentest Reports with Sysreptor

Today’s episode is all about writing reports in Sysreptor.  It’s awesome!  Main takeaways: The price is free (they have a paid version as well)! You can send findings and artifacts directly to the report server using the reptor Python module Warning: Sysreptor only exports to PDF (no Word version option!) Sysreptor has helped us write reports faster without sacrificing quality

5 Huhti 202438min

7MS #617: Tales of Pentest Pwnage – Part 55

7MS #617: Tales of Pentest Pwnage – Part 55

Hey friends, today we’ve got a tale of pentest pwnage that covers: Passwords – make sure to look for patterns such as keyboard walks, as well as people who are picking passwords where the month the password changed is part of the password (say that five times fast)! Making sure you go after cached credentials Attacking SCCM – Misconfiguration Manager is an absolute gem to read, and The First Cred is the Deepest – Part 2 with Gabriel Prud’homme is an absolute gem to see.  Also, check out sccmhunter for all your SCCM pwnage needs.

29 Maalis 202436min

7MS #616: Interview with Andrew Morris of GreyNoise

7MS #616: Interview with Andrew Morris of GreyNoise

Hey friends, today we have a super fun interview with Andrew Morris of GreyNoise to share.  Andrew chatted with us about: Young Andrew’s early adventures in hacking his school’s infrastructure (note: don’t try this at home, kids!) Meeting a pentester for the first time, and getting his first pentesting job Spinning up a box on the internet, having it get popped instantly, and wondering…”Are all these people trying to hack me?” Battling through a pentester’s least favorite part of the job: THE REPORT! GreyNoise’s origin story How to build a better honeypot/honeynet

22 Maalis 202459min

7MS #615: Tales of Pentest Pwnage – Part 54

7MS #615: Tales of Pentest Pwnage – Part 54

Hey friends, sorry I’m so late with this (er, last) week’s episode but I’m back!  Today is more of a prep for tales of pentest pwnage, but topics covered include: Make sure when you’re snafflin‘ that you check for encrypted/obfuscated logins and login strings – it might not be too tough to decrypt them! On the defensive side, I’ve found myself getting *blocked* doing things like SharpHound runs, Snaffler, PowerHuntShares, etc.  Look through the readme files for these tools and try cranking down the intensity/threads of these tools and you might fly under the radar.

19 Maalis 202421min

7MS #614: How to Succeed in Business Without Really Crying - Part 16

7MS #614: How to Succeed in Business Without Really Crying - Part 16

How much fun I had attending and speaking at Netwrix Connect Being a sales guy in conference situations without being an annoying sales guy in conference situations A recap of the talk I co-presented about high profile breaches and lessons we can learn from them

8 Maalis 202436min

7MS #613: Tales of Pentest Pwnage – Part 53

7MS #613: Tales of Pentest Pwnage – Part 53

Today’s tale of pentest covers: Farming for credentials (don’t forget to understand trusted zones to make this happen properly!) Snaffling for juice file shares Stealing Kerberos tickets with Rubeus

1 Maalis 202433min

7MS #612: Pentestatonix - Part 2

7MS #612: Pentestatonix - Part 2

Hello friends, we’re still deep in the podcast trenches this quarter and wanted to share some nuggets of cool stuff we’ve been learning along the way: Snaffler – pairs nicely with PowerHuntShares to find juicy tidbits within file/folder shares Group3r – helps you find interesting and potentially abusable Group Policy Object configurations Farmer – totally awesome toolkit for dropping tricky files on shares that will do things like fire up the Webclient service for any system browsing the share (doesn’t require admin rights!) or coaxing a system into authenticating with you via HTTP or SMB

25 Helmi 202432min

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