Sordum has some interesting tools but I can tell you with absolute certainty that the Easy Service Optimizer is completely malware. Here is the graph of all the moving parts and infected files it dumps.
https://www.virustotal[removed by editor]/graph/embed/g2dbf2440a3334ca69de033f8b823c82da6f8b063b87d455284774499b30bf347?theme=dark