[ilurk]

I skimmed trough it so it wasn't clear to me.

But if you ssh and have root access, then you should be able to change the password. As well as edit a startup script to move/delete the backdoor files.

Try it at your own risk.

[mark-r]

The whole point of a backdoor is that changing the password is ineffective. And the backdoor isn't a file you can delete, it's just a couple of extra instructions buried in the code - the article made that clear.