7MS #463: DIY Pentest Dropbox Tips - Part 5
7 Minute Security14 Huhti 2021

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.

Jaksot(706)

7MS #105: OFFTOPIC-Big Bag of Random Sauce

7MS #105: OFFTOPIC-Big Bag of Random Sauce

Today's totally random episode covers: 1. How bad does this podcast's logo suck? 2. Does this podcast need a theme song? 3. Some interesting training I'm taking next week. 4. The Walking Dead - who should die? 5. Metal Gear Solid and my personal godmode strategy.

28 Loka 20159min

7MS #104: LANTurtle First Impressions

7MS #104: LANTurtle First Impressions

Hey I just got a LANTurtle and....these are my first impressions!

22 Loka 20157min

7MS #103: OFFTOPIC-I Was in a Movie Once

7MS #103: OFFTOPIC-I Was in a Movie Once

This is an off-topic episode about the time I was in the holiday comedy super-smash laugh-fest, Jingle All the Way.

20 Loka 20157min

7MS #102: Recon-ng!

7MS #102: Recon-ng!

I'm a big fan of Recon-ng and you should be too! Check it out - and learn more about Tim Tomes, its creator - at www.lanmaster53.com. And here's the video I mentioned in the podcast - my first look at Recon-ng in action: https://www.youtube.com/watch?v=vkmNTNl6urw

15 Loka 20158min

7MS #101: OFFTOPIC-I Am Chris Farley

7MS #101: OFFTOPIC-I Am Chris Farley

The new(ish) Chris Farley documentary is fantastic - see it!

14 Loka 20157min

7MS #100: Assessment Curses Can Be Blessings

7MS #100: Assessment Curses Can Be Blessings

Ever had an assessment that you thought would be the death of you? I had one recently, but after sticking it out, it turned out to be a blessing in disguise.

9 Loka 20157min

7MS #99: How to Deliver Bad News in a Good Way

7MS #99: How to Deliver Bad News in a Good Way

Today's episode gives you some tips on how to deliver bad news in an assessment in a positive way. I think that last sentence was a grammatical nightmare.

2 Loka 20158min

7MS #98: Intro to PCI Scoping

7MS #98: Intro to PCI Scoping

So far I've focused on the technical aspects of PCI, but I'm trying to get familiar with the overall scoping questions that my tenacious QSA friends ask when they start a gap analysis. This episode shares some interesting tidbits I learned while doing some QSA "shadowing" on an assessment of a restaurant.

30 Syys 20158min

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