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Component Object Model - T1559.001 (2f6b4ed7-fef1-44ba-bcb8-1b4beb610b64)

Adversaries may use the Windows Component Object Model (COM) for local code execution. COM is an inter-process communication (IPC) component of the native Windows application programming interface (API) that enables interaction between software objects, or executable code that implements one or more interfaces.(Citation: Fireeye Hunting COM June 2019) Through COM, a client object can call methods of server objects, which are typically binary Dynamic Link Libraries (DLL) or executables (EXE).(Citation: Microsoft COM) Remote COM execution is facilitated by Remote Services such as Distributed Component Object Model (DCOM).(Citation: Fireeye Hunting COM June 2019)

Various COM interfaces are exposed that can be abused to invoke arbitrary execution via a variety of programming languages such as C, C++, Java, and Visual Basic.(Citation: Microsoft COM) Specific COM objects also exist to directly perform functions beyond code execution, such as creating a Scheduled Task/Job, fileless download/execution, and other adversary behaviors related to privilege escalation and persistence.(Citation: Fireeye Hunting COM June 2019)(Citation: ProjectZero File Write EoP Apr 2018)

Cluster A Galaxy A Cluster B Galaxy B Level
Inter-Process Communication - T1559 (acd0ba37-7ba9-4cc5-ac61-796586cd856d) Attack Pattern Component Object Model - T1559.001 (2f6b4ed7-fef1-44ba-bcb8-1b4beb610b64) Attack Pattern 1