RE: Sequence of numbers in a hacker provided script

I'll bet money its for clearing logs of any trace of his actions....when he
backs out.........

--->
---> A hacker infiltrated our (Linux) system and left a script behind.
---> In the script there is a name and a numeric sequence. What does
---> this numeric sequence mean?
--->
---> #!/bin/bash
---> #
---> # cleaner - by (The hacker's alias) [38.24.8888]
---> #
---> # Usage: ./cleaner 'your login name or any string'
--->

--
--->