Cannot change Directory permissions after becoming root
 

Could this be Linux Malware?

I use su to get to root then issued
the command "chmod +w /home/mydirectory

I had no effect on anything.

drwxr-xr-x 28 gb users 4096 Sep 30 14:13 /home/mydirectory

I want to set the permissions to 755 but no matter
how hard I try it remains the same.

Permissions are already 755, maybe you mean 777? In that case the correct syntax would be either
or

That was what I wanted. Thank you!