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Investigating Window OpenVPN

17/02/2023 Friday

OpenVPN is a virtual private network application, similar to ExpressVPN, ProtonVPN, and NordVPN. A VPN application provides a secure connection for individuals and businesses. OpenVPN solutions primarily target businesses by offering VPN integrated solutions such as OpenVPN Cloud and Self-Hosted Access Server. In addition, OpenVPN Connect client software is available for both individual users and businesses. The software is compatible with several widely used operating systems, including Windows, macOS, Linux, Android, and iOS.

Digital Forensics Value of OpenVPN

OpenVPN maintains artifacts which hold useful information that give details about the user’s browsing behavior. When this software is used by a cyber attacker, its left-behind artifacts can reveal his goals by showing information about the connection and the websites that the attacker was interested with.

Location of OpenVPN Artifacts

OpenVPN artifacts are found in the following location:
%systempartititon%:\Users\%username%\AppData\Roaming\OpenVPN Connect\profiles
%systempartititon%:\Users\%username%\AppData\Roaming\OpenVPN Connect\log

Analyzing OpenVPN with ArtiFast

This section will discuss how to use ArtiFast to extract OpenVPN from Windows and what kind of digital forensics insights we can gain from the artifacts.

After you have created your case and added evidence for the investigation, at the Artifact Selection phase, you can select OpenVPN artifacts.

Once ArtiFast parser plugins complete processing the artifact for analysis, it can be reviewed via “Artifact View” or “Timeline View,” with indexing, filtering, and searching capabilities. Below is a detailed description of Window OpenVPN artifacts in ArtiFast.

OpenVPN Profiles Artifact

OpenVPN Logs Artifact

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