Except that it doesn't. The infections will bypass the firewall, coming in on an already allowed vector (like IE or Firefox or Outlook) and then disable the firewall or go outbound on some allowed ...
There are various instances of this issue that we get such as JAVAC’, JRE, ‘MVN’, JAR’ is not recognized as an internal or external command, operable program or batch file, ‘Java’ is not recognized as ...