How script kiddies turns Linux box into a Zombie - True Story

Oy. Not the best idea, generally speaking.

Edit: I used to read the localized paper version of http://xakep.ru/ several years ago, and practically every hacking story/tool roundup they had mentioned the annoying problem with ls --color, it was apparently present in almost every public rootkit at the time. It's kinda interesting to see that idiots still use outdated tools years later.