Fallback if the regex fails for some reason

lib/msf/base/sessions/powershell.rb

@@ -6,14 +6,17 @@ class Msf::Sessions::PowerShell < Msf::Sessions::CommandShell
   # Execute any specified auto-run scripts for this session
   #
   def process_autoruns(datastore)
-    # Read the initial output (PS banner) and toss it)
+
+    # Read the username and hostname from the initial banner
     initial_output = shell_read(-1, 0.01)
     if initial_output =~ /running as user ([^\s]+) on ([^\s]+)/
       username = $1
       hostname = $2
+      self.info = "#{username} @ #{hostname}"
+    else
+      self.info = initial_output.gsub(/[\r\n]/, ' ')
     end
-    # Set the session info
-    self.info = "#{username} @ #{hostname}"
+
     # Call our parent class's autoruns processing method
     super
   end