KKiller

KKiller is a very dangerous spyware, which isn't able to produce damage by itself, but is always able to help other spywares. KKill acts by killing many processes, which belong to antiviral applications and firewalls. This technique leaves the infected computer totally defenceless against viruses. What is more, KKiller also uses some specific algorithms for writing itself into computer registry; this means that even after computer restart this pest will be killing processes.