The main action it takes is to slow down computer speed and to modify registry and computer settings. Slowing down computer performance stops other normal progress to run and changing system settings allows this backdoor Trojan horse to hide behind system files to avoid detection of firewalls. It usually bundles with large amount of adware or key logger into your computer. The worse thing is it will open a backdoor to allow cyber criminals gain access to the infected PC and record down all the sensitive data. Your banking or other financial transactions will be stole and used to fraud money. To PC users, it is a very good concept to get rid of this dangerous Trojan horse manually rather than wasting time and energy to pick it up.