How to change a directory name?
If what you posted was literally what the directory name is, then this should work:

cd /Users
mv hook1\?\?\? hook1


The problem, as fd0 points out, is that you have invisible/unprintable characters in your directory name. Use basic, non-destructive shell commands to isolate the directory name using wildcards, then rename it.  For example, try this:

cd /Users
ls -ld h*


That should result in exactly one directory being listed. If it does not, continue to add letters before the * in order to create a wildcard mask that produces exactly one result:

ls -ld ho*     # produces 3 results
ls -ld hoo*    # produces 1 result


If you get to a point where you go from more than one result to zero results, then you've stumbled upon another invisible character. Back up one letter, add a question mark then re-add the letter.

ls -ld ho*     # produces 3 results
ls -ld hoo*    # produces 0 results
ls -ld ho?o*   # produces 1 result


If you still have problems, play around with more * and ? until you have something that produces exactly one result:

ls -ld ho*     # produces 3 results
ls -ld hoo*    # produces 0 results
ls -ld ho?o*   # produces 0 results
ls -ld ho*o*   # produces 1 result


Once you have that, then use that in your mv command:

mv ho*o* hook1


If none of this works, please post the results of you ls -ld experiments.