7MS #463: DIY Pentest Dropbox Tips - Part 5

7MS #463: DIY Pentest Dropbox Tips - Part 5

In the last two episodes of this series (#449 and #450) we've been diving into how to not only speed up the process of spinning up a DIY pentest dropbox, but how to automate nearly the entire build process!

In today's episode we talk specifically about how to streamline the Windows 10 build process. As previously mentioned, this article is awesome for creating a core Win 10 answer file that will format C:, setup a local admin, login once to the configured desktop and then do whatever things you want it to do. Personally, I like having a single batch file get fired off that:

  • Sets the timezone with tzutil /s "Central Standard Time"

  • Stops the VM from falling asleep with powercfg.exe -change -standby-timeout-ac 0

  • Grabs and runs a PS file that does a ton of downloading and unzipping of files with:

invoke-webrequest https://somesite/somefile.zip -outfile c:\somewhere\somefile.zip expand-archive c:\somewhere\somefile.zip -destinationpath "c:\somewhere\extracted\"
  • Installs Windows updates with:
Install-PackageProvider -name nuget -force Install-Module PSWindowsUpdate -force Import-Module PSWindowsUpdate Get-WindowsUpdate Install-WindowsUpdate -AcceptAll -IgnoreReboot
  • Sets a new name for the machine:
Write-Host "Picking a new name for this machine...you'll need to provide your admin pw to do so" Rename-Computer -LocalCredential administrator -PassThru Write-Host "New name accepted!"
  • Does a set of actions depending on the IP range with this code (which sets the IP address to a variable and then does stuff if the machine sits in that subnet):
$ip = ((ipconfig | findstr [0-9].\.)[0]).Split()[-1] f ($ip -like "192.168.0.*") { Invoke-Webrequest https://somesite/somefile.ps1 -OutFile c:\someplace\somefile.ps1 }

Also, I talk in this episode about how I try to host these "seed" files as securely as possible using Amazon Lightsail instances, the built-in firewall, and LetsEncrypt.

Avsnitt(706)

7MS #58: What Should We Do First? (audio)

7MS #58: What Should We Do First? (audio)

At the end of just about every assessment I deliver, the client asks "What should we do first?" They (understandably) want to know a "top 5″ list of things they should change right away to improve their security posture. Today's episode explores that a bit. 7MS #58: What Should We Do Next? (audio)

5 Maj 20158min

7MS #57: How to Review a Firewall (audio)

7MS #57: How to Review a Firewall (audio)

In this episode I talk about a few different ways to approach firewall reviews/audits. This document was very helpful in getting my template started. Also check out Nipper if you're looking for a firewall review/audit tool. 7MS #57: How to Review a Firewall (audio)

30 Apr 20158min

7MS #56: OFFTOPIC – Catching Up and Blowing Noses (audio)

7MS #56: OFFTOPIC – Catching Up and Blowing Noses (audio)

A few offtopic things: What you can expect as far as a podcast release schedule going forward Two suspicious charges that showed up on my credit card while out of town! 7MS #56: OFFTOPIC – Catching Up and Blowing Noses (audio)

28 Apr 20158min

7MS #55: OFFTOPIC – What's in Brian's Murse? (video)

7MS #55: OFFTOPIC – What's in Brian's Murse? (video)

Ok I don't really have a murse, but I wanted to do a short video(!) podcast to show you some sorta-security-related gadgets that I've been nerding out on the last few weeks. 7MS #55: OFFTOPIC – What's in Brian's Murse? (video)

22 Apr 20156min

7MS #54: Traveling with a Red Giant (audio)

7MS #54: Traveling with a Red Giant (audio)

If you're concerned about your credit/debit card security, you might want to give Red Giant a try. It's a service that provides a debit card you can unlock *only* when buying something. It's cool. Oh, and Red Giant is NOT sponsoring this episode. If I ever get sponsors, I'll disclose them clearly. :-) 7MS #54:…

16 Apr 20157min

7MS #53: Are You Ready to Get Robbed? (audio)

7MS #53: Are You Ready to Get Robbed? (audio)

Business DR plans are a hugely important – and often overlooked – piece of the infosec puzzle. But what about at home? If you got run over by a bus tomorrow, would you have good plans in place to help your partner/spouse take over the tech side of your household? That's what we're talkin' about…

14 Apr 20157min

7MS #52: OFFTOPIC – My Son is Really Loyal (audio)

7MS #52: OFFTOPIC – My Son is Really Loyal (audio)

It's another off-topic episode today. This one's about how my eight-year-old son is fiercely loyal, and wants to settle a 25-year-old score for me. 7MS #52: OFFTOPIC – My Son is Really Loyal (audio)

9 Apr 20158min

7MS #51: CEH vs. OSCP (audio)

7MS #51: CEH vs. OSCP (audio)

A few people have written in asking whether to pursue the CEH or OSCP (or both). This episode discusses my experience with each cert and hopefully points you in the right direction on which one might be right for you. Here's the article on CEH I mention during the episode – it has much more…

7 Apr 20157min

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