AurelloSoft RootKILL is a free Tool developed by AurelloSoft, and it is capable of scanning a user's computer almost instantly, reporting any possible rootkits found.
AurelloSoft RootKILL allows the user to choose what to delete as well. AurelloSoft RootKILL also automatically downloads definition updates when the program loads. AurelloSoft RootKILL also comes with an editable definition file.