Does anyone know if malware can corrupt/change/mutate anti-malware software and then cause it to disable a person's computer? I have a friend whose computer was really slow, therefore, I installed a few tried and true programs such as Malwarebytes free edition and/or SuperAntiSpyware free edition and/or Emsisoft Emergency Kit and/or Symantec's Trojan Vundo Removal Tool.(I can't remember exactly which ones which is why I say "and/or.") I also, installed Sandboxie for future use after disinfection. However, my friend really didn't have time to use these programs, also, their computer continued to get worse. Additionally, my friend believed that the anti-malware programs were causing their computer to get worse and tried to uninstall the programs, however, their computer eventually completely stopped working and wouldn't even boot up. Well, my friend eventually took it to a repair man who fixed their computer, however, the repair man told them that the anti-malware programs were probably used by and corrupted by malware to further infect their computer. However, I have never heard of such a thing and was wondering if anyone could give me some feedback on this.