> Once a machine is infected, the XWorm malware checks the Windows Registry for signs it is running on a virtualized environment and stops if the results are po

> Once a machine is infected, the XWorm malware checks the Windows Registry for signs it is running on a virtualized environment and stops if the results are positive. Many (if not all) malwares do this now. Does this mean you don't need an antivirus when you run windows on a vm because any malware that happen to infect it would kill themselves when they noticed they're running inside a vm?