Sysinternals Tool EULA Registry Key Creation
Detects the execution of a Sysinternals Tool via the creation of the "EulaAccepted" registry key. Many Sysinternals tools create this key upon first execution to signify acceptance of the End User License Agreement (EULA). This can be an indicator of Sysinternals tools being used on a system, which are often leveraged by adversaries for various post-exploitation activities.
Sigma

