During long term adversary simulations engagements, host persistence is an useful method of regaining access to a compromised workstation or server, without having to exploit the initial foothold all over again. COM object hijacking is an unique technique in which a default system-wide COM Object can be replaced by a malicious software and load in its place. In this presentation we will explore together ways to implement COM Hijacking via CLSID, ProgID, Task Scheduler, Missing Libraries and others.