Hi, > My question is: They did not guess the root password, > how did they manipulate files which are only writable > by root??? The following articles at wikipedia should give you an idea what was going on on your maschine: http://en.wikipedia.org/wiki/Exploit_%28computer_security%29 http://en.wikipedia.org/wiki/Rootkit Hope that helps, Jan P.S. I would recommend an clean re-install. You never know what things are sleeping and hiding on your maschine now... -- PGP: 2814 0DC4 597A 1083 9AA4 6F76 0DD9 54E1 B706 0963
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