What action is required to collect investigation packages from Linux devices in Microsoft Defender 365?

To collect investigation packages from Linux devices in Microsoft Defender 365, initiating a Live Response session is necessary. A Live Response session allows security analysts to interactively manage and respond to threats on a device in real-time. This capability is crucial when dealing with incidents, as it enables the retrieval of forensic data and investigation packages that contain logs and other relevant information about the state of the system at the time of the incident.

This process is particularly beneficial for Linux devices, as it provides a direct connection to the device that allows forensic artifacts to be gathered efficiently. The Live Response feature facilitates deep investigation and threat hunting by enabling access to the command line, allowing analysts to perform various actions, including collecting detailed system information and investigation packages.

In contrast to other options, such as initiating an automated investigation or running an antivirus scan, these do not provide the same level of hands-on interaction for collecting investigation data. While automated investigations are valuable for triaging alerts and identifying issues, they do not specifically focus on gathering investigation packages from devices. Collecting an investigation package is indeed a part of the response workflow, but it cannot be directly executed without first establishing a Live Response session. Hence, the most appropriate action to take for this specific need is to initiate a Live Response session