7MS #502: Building a Pentest Lab in Azure

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.

Episoder(683)

7MS #636: A Prelude to BPATTY(RELOADED)

7MS #636: A Prelude to BPATTY(RELOADED)

Artificial hype alert!  I’m working on a NEW version of BPATTY (Brian’s Pentesting and Technical Tips for You), but it is delayed because of a weird domain name hostage negotiation situation.  It’s weird.  But in the meantime I want to talk about the project (which is a pentest documentation library built on Docusaurus) and how I think it will be bigger/better/stronger/faster/cooler than BPATTY v1 (which is now in archive/read-only mode).

12 Aug 202411min

7MS #635: Eating the Security Dog Food - Part 7

7MS #635: Eating the Security Dog Food - Part 7

Today we’re talking about eating the security dog food – specifically: Satisfying critical security control #1 Using the Atlassian family of tools to create a ticketing/change control system and wrap it into an asset inventory Leveraging Wazuh as a security monitoring system (with eventual plans to leverage its API to feed Atlassian inventory data)

3 Aug 202445min

7MS #634: Tales of Pentest Pwnage - Part 60

7MS #634: Tales of Pentest Pwnage - Part 60

Hi, today’s tale of pentest pwnage covers a few wins and one loss: A cool opportunity to drop Farmer “crops” to a domain admin’s desktop folder via PowerShell remote session Finding super sensitive data by dumpster-diving into a stale C:\Users\Domain-Admin profile Finding a vCenter database backup and being unable to pwn it using vcenter_saml_login

26 Jul 202432min

7MS #633: How to Create a Security Knowledgebase with Docusaurus

7MS #633: How to Create a Security Knowledgebase with Docusaurus

Hey friends, we’re doing a little departure from our normal topics and focusing on how to create a security knowledgebase (is that one word or two?) using Docusaurus!  It’s cool, it’s free, it’s from Meta and you can get up and going in just a few commands – check out their getting started guide to get rockin’ in about 5 minutes. Important files include: docusaurus.config.js – for setting the site title and key config settings sidebars.js – used to create/edit navigation bar menus /src/css/custom.css – to style the site

19 Jul 202414min

7MS #632: Tales of Pentest Pwnage – Part 59

7MS #632: Tales of Pentest Pwnage – Part 59

Today’s tale of pentest pwnage includes some fun stuff, including: SharpGPOAbuse helps abuse vulnerable GPOs!  Try submitting a harmless POC first via a scheduled task – like ping -n 1 your.kali.ip.address.  When you’re ready to fire off a task that coerces SMB auth, try certutil -syncwithWU \\your.kali.ip.address\arbitrary-folder. I’m not 100% sure on this, but I think scheduled tasks capture Kerberos tickets temporarily to workstation(s).  If you’re on a compromised machine, try Get-ScheduledTask -taskname "name" | select * to get information about what context the attack is running under. DonPAPI got an upgrade recently with a focus on evasion! When attacking vCenter (see our past YouTube stream for a walkthrough), make sure you’ve got the vmss2core utility, which I couldn’t find anywhere except the Internet Archive.  Then I really like to follow this article to pull passwords from VM memory dumps. Can’t RDP into a victim system that you’re PSRemote’d into?  Maybe RDP is listening on an alternate port!  Try Get-ItemProperty -path "HKLM:\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp | select-object portnumber` And if you want to hang around until the very end, you can hear me brag about my oldest son who just became an EMT!

12 Jul 202448min

7MS #631: Tales of Pentest Pwnage – Part 58

7MS #631: Tales of Pentest Pwnage – Part 58

Hi friends, today’s a tale full of test tips and tools to help you in your adventures in pentesting! SCCM Exploitation SCCM Exploitation: The First Cred Is the Deepest II w/ Gabriel Prud’homme – fantastic resource for learning all about attacking SCCM – starting from a perspective of zero creds CMLoot – find interesting files stored on (System Center) Configuration Manager (SCCM/CM) SMB shares Snaffler – finds all the interesting SMB shares and juicy file contents Efflanrs – takes the raw Snaffler log and turns it into an interactive Web app! RubeusToCcache – a small tool to convert Base64-encoded .kirbi tickets from Rubeus into .ccache files for Impacket

7 Jul 202415min

7MS #630: Epic Road Trip Served with Security Sprinkles

7MS #630: Epic Road Trip Served with Security Sprinkles

Today I recap a two week persona/biz road trip and talk about the security stuff that got sprinkled into it, including: Family members who don’t care about their personal security Weakpass – a cool collection of word lists for brute-forcing and spraying that I’d never heard of Working on two security Webinars for Netwrix (here’s part 1: Mastering Password Security & Active Directory Monitoring, and and part 2: Advanced Strategies for SQL Server Protection & Sensitive Information Security) The moment we though our credit card was stolen at a waterpark A shameless plug for our fun interview with Stu the recruiter Some internal pentest tips that have given us some gold in recent assessments Super fast, spoiler-free movie reviews of Roadhouse, Arcadian, Late Night with the Devil and The Coffee Table

1 Jul 202445min

7MS #629: Interview with Stu Musil of Ambient Consulting

7MS #629: Interview with Stu Musil of Ambient Consulting

Today we have a fun featured interview with my new friend Stu Musil of Ambient Consulting I had a great time talking with Stu about bashing come common misconceptions people have about working with recruiters, plus tackling some frequently asked questions: How do you properly vet a recruiter you don’t know, but who offers a job opportunity you’re interested in? What questions should you ask a potential recruiter to get a feel for their level of experience in the industry (hint, if a recruiter doesn’t even have a LinkedIn page, that’s probably a red flag) Resume tips: Finding the right length and tone Tailoring your resume for each individual job Highlighting your strengths Do people still use cover letters when applying to a gig? Is a “hobbies and interests” section still a good idea on a resume (to show them you’re not a robot who works 24/7)? Lets talk about some horror and/or success stories from the world of recruiting!

24 Jun 202446min

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