If you don’t have a copy of winPEAS, you can grab one here. From there, we setup an HTTP server on our attacker machine and then download winPEAS onto the victim. systeminfo | findstr /B /C:"Host Name" /C:"OS Name" /C:"OS Version" /C:"System Type" /C:"Hotfix(s)"ĭuring our initial enumeration, we decide to make a C:\temp folder to work out of as we begin transferring some tools onto the victim. Enumerating AppLockerįor this example, we have gotten a shell on a Server 2019 machine as the standard user bill. One thing to note about AppLocker is that it can only be applied to Windows 10 Enterprise and Server 2016 / 2019 operating systems. These include executable files, scripts, Windows Installer files, dynamic-link libraries (DLLs), packaged apps, and packaged app installers. Due to the wildcard (*) this means that an EXE can only be executed from C:\Program Files as well as any of its subfolders.ĪppLocker helps you control which apps and files users can run. For example, an Administrator can set rules with AppLocker that will only allow a user to execute EXE files from C:\Program Files\*. After that, we will look at two techniques that can be used to bypass the restraints of AppLocker so that we can use our tools on the victim.ĪppLocker is a feature (policy) that is used to create restrictions on certain file types (applications) and where they can be executed from. From there, we will enumerate and confirm that AppLocker is indeed installed and running with default rules. We will start with a hunch that AppLocker is enabled when we find ourselves unable to execute any of our tools on the victim. In this post we will cover the topic of AppLocker Bypass, which can be considered a step towards Windows Privilege Escalation because AppLocker will stuff all of our attempts to execute any files that we transfer onto the victim. Want to stay up to date with the latest hacks?.AppLocker Bypass – Alternate Data Stream.AppLocker Bypass – Default Writeable Folders.
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