Attacking Operational Technology Without Specialized Knowledge: The Unspecialized OT Threat Actor Profile

Due to the unique characteristics of Operational Technology (OT), i.e., technology centered around cyber-physical activities, performing OT-related cyber-attacks is traditionally thought to require both specialized- and generic IT-related knowledge. However, in recent years, the need for specialized knowledge decreased, and OT-related cyber-attacks became increasingly easier to perform. In this paper, we profile a new threat actor, referred to as the unspecial-ized OT attacker, who performs targeted, OT-related cyber-attacks with at most basic generic knowledge. We show the relevance of this threat actor by identifying past OT-related cyber-attacks that match this threat actor profile's capabilities; we do so by mapping the types of tools used during these cyber-attacks and the knowledge required to use them. To further substantiate our analysis, we investi-gate readily-available tools that can assist threat actors in performing OT-related cyber-attacks. The combination of our findings highlights the present-day lowered entry level requirements to attack OT environments while limiting the scope of current assumptions.