![]() They are custom built by Amazon Web Services (AWS) using 64-bit Arm Neoverse cores to deliver the best price performance for your cloud workloads running in Amazon Elastic Compute Cloud (Amazon EC2). BackgroundĪWS Graviton2 processors add even more choice to help customers optimize performance and cost for their workloads. ![]() Organizations use Splunk’s Data-to-Everything Platform to solve their toughest IT and security challenges by turning their data into doing. Splunk is an AWS Advanced Technology Partner with AWS Competencies in Data & Analytics, DevOps, Security, and other key areas. You’ll also learn how to configure the instance and the Universal Forwarder to forward data to Splunk Cloud. In this post, we provide a step-by-step guide to help you set up a Universal Forwarder on a Graviton2 instance running Linux. This allows AWS Graviton2 customers with Linux workloads to collect and forward machine data to their Splunk environment. Splunk recently announced the availability of Armv8 64-bit architecture support for the Splunk Universal Forwarder. ISV Solutions Architect at AWSīy Igor Alekseev, Sr. Hopefully following along with this, it took you less than the 2 hours it took me.By Karsten Ploesser, Sr. Now take that copy of nf you need and put it in the local folder of your app. ![]() This post isn’t to teach you how Splunk works, but the main thing you need is “”. Make the changes you need (like log location, Splunk index you want it in, etc – see nf for details. For prebuilt apps, go to etc/apps/yourapp/default and grab a copy of nf. You’ve got Splunk installed, you’ve got apps, awesome! But with a deployment server, you still haven’t don’t anything custom. Net start splunkforwarder service Quatro: Configure Your Apps Check it with “splunk status” and if Splunk won’t restart, you may have to force the service to start: ![]() Sometimes Splunk doesn’t actually restart. Splunk will install your app in splunk/etc/apps, but you still need to restart Splunk in order for Splunk to use the app. Splunk.exe install app /path_to_app_to_install.whatever Using the credentials you made in the previous app, we’ll authenticate to Splunk and tell it to install our app. But what about apps? What about a Windows TA? A Splunk Cloud credentials app? A custom app? “/q” means quiet, so you won’t cause any popups for any logged in users.īONUS: You can also specify the install path if you’re trying to sneaky with “TargetDIR” to install it somewhere else than the default location, which is “Program Files”. If you change the password as part of the install, you won’t get (or miss) the popup. “/i” is install, “AGREETOLICENSE” will cause a popup if you don’t specify yes, which your shell may not support, and after Splunk 7.0 or so, they force you to immediately change the admin account password. Msiexec.exe /i splunkagentname.msi AGREETOLICENSE=YES SPLUNKPASSWORD=PASSWORD1 /q EDR makes it easy to get and put files on the client, but for red teamers, certutil, powershell IEX downloadstring, wget, iwr… you get the picture. However you can, get the forwarder on the target. But Windows MSI/EXE is made to click and run, so this took a lot of reading to get the commands just right on a limited shell. Linux? Yeah, install is pretty easy: untar stuff. It took way too long how to do this from the command line. This part is the part that inspired me to write this. Splunk Universal Forwarder Dos: Install Splunk Splunk keeps older versions of the forwarder available, so make sure to click “older releases” and find the version of the forwarder that mis compatible with your indexer as running a newer forwarder with an older version indexer may cause issues. We’ll need a copy of the forwarder to install. You can still follow this for evil red team reasons to exfil data that you have access to. In my example, I was doing this for blue team reasons and could install Splunk as system, so I had no issues collecting logs. Keep in mind if you don’t have an elevated user (preferably system) this will limit the logs you can collect: the user Splunk runs as limits what logs you can collect. Assumptions:įor the purposes of this little guide, we are presuming you have a basic shell on the Windows host and some sort of Splunk instance. If you’re a blue teamer, maybe you don’t ever work on Windows from a shell and/or your EDR only gives you a crappy shell. If you’re a pen tester, your way in might have a very limited shell. Sounds simple, right? Well it was, but when you’re not used to working on Windows from a shell (like a red teamer or a pen tester might be), it can be frustrating and time consuming. Have you ever been in a situation where you had to install a Splunk agent on Windows from a shell? Well I have, and let me tell you how I did it. Windows is pointy clicky, how do I command line?!?! Introduction:
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