MightyCleaner or Mighty Cleaner is a phony spyware remover tool. MightyCleaner aggressively advertises itself by making use of pop up messages and fictitious security warnings, all in order to deceive the user and coerce them into purchasing the “full version” of MightyCleaner. This particular malware is capable of opening system security holes so as to install and activate additional malware applications. The best way to get rid of MightyCleaner is to download an automatic scanner\remover tool. Experts warn that MightyCleaner is highly capable of causing serious damage to an infected PC and may result in critical system errors and slowdowns.