Velociraptor P1

1. Introduction

Velociraptor is an advanced digital forensic and incident response tool that enhances your visibility into your endpoints. In this exercise we'll setup a velociraptor server based on linux and connect a windows client to it. Further we'll collect our first artefact.

2. Setup

Prerequisite:

• Linux VM (https://livecd.hacking-lab.com/)

• Windows 10 VM (https://developer.microsoft.com/en-us/microsoft-edge/tools/vms/)

Velociraptor can be run on windows, linux and macOSX. In this case I'll run velociraptor on a virtual linux machine and I'll setup a windows box which is connected to the velociraptor server.

Original Lab developed by SAM BOWNE:

samsclass.info: Sam Bowne Class Information

3. Installation

mkdir Velociraptor
cd Velociraptor
wget https://github.com/Velocidex/velociraptor/releases/download/v0.6.4-2/velociraptor-v0.6.4-2-linux-amd64
chmod +x velociraptor-v0.6.4-2-linux-amd64
./velociraptor-v0.6.4-2-linux-amd64 config generate > velociraptor.config.yaml

Edit the velociraptor.config.yaml configuration file and replace every localhost or 127.0.0.1 entry with the ip address of the virtual machine.

mv velociraptor.config.yaml /etc

Set administrator password:

./velociraptor-v0.6.4-2-linux-amd64 --config /etc/velociraptor.config.yaml user add admin --role administrator

Start Velociraptor GUI:

./velociraptor-v0.6.4-2-linux-amd64 --config /etc/velociraptor.config.yaml frontend -v 

The basic setup of velociraptor is now up and running. We can now start to add clients in our velociraptor environment.

4. Adding Windows Client

Edit the velociraptor.config.yaml file again.

Scroll down to the first END CERTIFICATE line.

Below the "nonce: line, insert this line, as shown in the image above.

use_self_signed_ssl: true

Prepare Client installer for windows:

cd Velociraptor
./velociraptor-v0.6.4-2-linux-amd64 --config /etc/velociraptor.config.yaml config client > client.config.yaml

wget https://github.com/Velocidex/velociraptor/releases/download/v0.6.4-2/velociraptor-v0.6.4-2-windows-amd64.exe

./velociraptor-v0.6.4-2-linux-amd64 config repack --exe velociraptor-v0.6.4-2-windows-amd64.exe client.config.yaml repackaged_velociraptor.exe

I'm using winscp to transfer the repacked exe file to my windows box

Open a elevated cmd prompt:

cd %userprofile%\Desktop
repackaged_velociraptor.exe service install

5. Viewing the Client

We have now full control over the client, can browse trough the filesystem and registry or collecting some artefacts!

Exploring Filesystem

Exploring Registry

6. Collecting first artifact

At the top left, click the house icon to go to the home page, which shows "Server status".

At the top center, click the "Show All" button.

In the "Client ID" column, click the blue link.

At the top center, click the Collected button.

At the top left, click the plus-sign (see image below)

At the top left, in the search box, type netstat.

Click Windows.Network.NetstatEnriched.

A description of this artifact appears, as shown below.

At the lower left, click the blue "Configure Parameters" link.

At the top left, click the wrench icon.

In the "ProcessNameRegex" field, enter velociraptor.* as shown below.

At the lower right, click the blue Launch link.

In the next screen, at the top center, click the Windows.Network.NetstatEnriched line to highlight it. In the lower pane, click the Results tab.

You see information about the Velociraptor process, as shown below:

As we know the basics, we can practise a little bit ;-)